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diff --git a/docs/sqlglot/optimizer/simplify.html b/docs/sqlglot/optimizer/simplify.html index e20a3f9..72a2fca 100644 --- a/docs/sqlglot/optimizer/simplify.html +++ b/docs/sqlglot/optimizer/simplify.html @@ -112,6 +112,9 @@ <a class="function" href="#simplify_concat">simplify_concat</a> </li> <li> + <a class="function" href="#simplify_conditionals">simplify_conditionals</a> + </li> + <li> <a class="variable" href="#DateRange">DateRange</a> </li> <li> @@ -136,6 +139,9 @@ <a class="function" href="#always_true">always_true</a> </li> <li> + <a class="function" href="#always_false">always_false</a> + </li> + <li> <a class="function" href="#is_complement">is_complement</a> </li> <li> @@ -211,7 +217,7 @@ </span><span id="L-9"><a href="#L-9"><span class="linenos"> 9</span></a><span class="kn">from</span> <span class="nn">sqlglot</span> <span class="kn">import</span> <span class="n">exp</span> </span><span id="L-10"><a href="#L-10"><span class="linenos"> 10</span></a><span class="kn">from</span> <span class="nn">sqlglot.generator</span> <span class="kn">import</span> <span class="n">cached_generator</span> </span><span id="L-11"><a href="#L-11"><span class="linenos"> 11</span></a><span class="kn">from</span> <span class="nn">sqlglot.helper</span> <span class="kn">import</span> <span class="n">first</span><span class="p">,</span> <span class="n">merge_ranges</span><span class="p">,</span> <span class="n">while_changing</span> -</span><span id="L-12"><a href="#L-12"><span class="linenos"> 12</span></a><span class="kn">from</span> <span class="nn">sqlglot.optimizer.scope</span> <span class="kn">import</span> <span class="n">find_all_in_scope</span> +</span><span id="L-12"><a href="#L-12"><span class="linenos"> 12</span></a><span class="kn">from</span> <span class="nn">sqlglot.optimizer.scope</span> <span class="kn">import</span> <span class="n">find_all_in_scope</span><span class="p">,</span> <span class="n">walk_in_scope</span> </span><span id="L-13"><a href="#L-13"><span class="linenos"> 13</span></a> </span><span id="L-14"><a href="#L-14"><span class="linenos"> 14</span></a><span class="c1"># Final means that an expression should not be simplified</span> </span><span id="L-15"><a href="#L-15"><span class="linenos"> 15</span></a><span class="n">FINAL</span> <span class="o">=</span> <span class="s2">"final"</span> @@ -272,970 +278,1006 @@ </span><span id="L-70"><a href="#L-70"><span class="linenos"> 70</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">uniq_sort</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">generate</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span> </span><span id="L-71"><a href="#L-71"><span class="linenos"> 71</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">absorb_and_eliminate</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span> </span><span id="L-72"><a href="#L-72"><span class="linenos"> 72</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_concat</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> -</span><span id="L-73"><a href="#L-73"><span class="linenos"> 73</span></a> -</span><span id="L-74"><a href="#L-74"><span class="linenos"> 74</span></a> <span class="k">if</span> <span class="n">constant_propagation</span><span class="p">:</span> -</span><span id="L-75"><a href="#L-75"><span class="linenos"> 75</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">propagate_constants</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span> -</span><span id="L-76"><a href="#L-76"><span class="linenos"> 76</span></a> -</span><span id="L-77"><a href="#L-77"><span class="linenos"> 77</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">replace_children</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="k">lambda</span> <span class="n">e</span><span class="p">:</span> <span class="n">_simplify</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="kc">False</span><span class="p">))</span> -</span><span id="L-78"><a href="#L-78"><span class="linenos"> 78</span></a> -</span><span id="L-79"><a href="#L-79"><span class="linenos"> 79</span></a> <span class="c1"># Post-order transformations</span> -</span><span id="L-80"><a href="#L-80"><span class="linenos"> 80</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_not</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> -</span><span id="L-81"><a href="#L-81"><span class="linenos"> 81</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">flatten</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> -</span><span id="L-82"><a href="#L-82"><span class="linenos"> 82</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_connectors</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span> -</span><span id="L-83"><a href="#L-83"><span class="linenos"> 83</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">remove_complements</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span> -</span><span id="L-84"><a href="#L-84"><span class="linenos"> 84</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_coalesce</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> -</span><span id="L-85"><a href="#L-85"><span class="linenos"> 85</span></a> <span class="n">node</span><span class="o">.</span><span class="n">parent</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">parent</span> -</span><span id="L-86"><a href="#L-86"><span class="linenos"> 86</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_literals</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span> -</span><span id="L-87"><a href="#L-87"><span class="linenos"> 87</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_equality</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> -</span><span id="L-88"><a href="#L-88"><span class="linenos"> 88</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_parens</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> -</span><span id="L-89"><a href="#L-89"><span class="linenos"> 89</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_datetrunc_predicate</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> -</span><span id="L-90"><a href="#L-90"><span class="linenos"> 90</span></a> -</span><span id="L-91"><a href="#L-91"><span class="linenos"> 91</span></a> <span class="k">if</span> <span class="n">root</span><span class="p">:</span> -</span><span id="L-92"><a href="#L-92"><span class="linenos"> 92</span></a> <span class="n">expression</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> -</span><span id="L-93"><a href="#L-93"><span class="linenos"> 93</span></a> -</span><span id="L-94"><a href="#L-94"><span class="linenos"> 94</span></a> <span class="k">return</span> <span class="n">node</span> -</span><span id="L-95"><a href="#L-95"><span class="linenos"> 95</span></a> -</span><span id="L-96"><a href="#L-96"><span class="linenos"> 96</span></a> <span class="n">expression</span> <span class="o">=</span> <span class="n">while_changing</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">_simplify</span><span class="p">)</span> -</span><span id="L-97"><a href="#L-97"><span class="linenos"> 97</span></a> <span class="n">remove_where_true</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span> -</span><span id="L-98"><a href="#L-98"><span class="linenos"> 98</span></a> <span class="k">return</span> <span class="n">expression</span> -</span><span id="L-99"><a href="#L-99"><span class="linenos"> 99</span></a> +</span><span id="L-73"><a href="#L-73"><span class="linenos"> 73</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_conditionals</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> +</span><span id="L-74"><a href="#L-74"><span class="linenos"> 74</span></a> +</span><span id="L-75"><a href="#L-75"><span class="linenos"> 75</span></a> <span class="k">if</span> <span class="n">constant_propagation</span><span class="p">:</span> +</span><span id="L-76"><a href="#L-76"><span class="linenos"> 76</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">propagate_constants</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span> +</span><span id="L-77"><a href="#L-77"><span class="linenos"> 77</span></a> +</span><span id="L-78"><a href="#L-78"><span class="linenos"> 78</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">replace_children</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="k">lambda</span> <span class="n">e</span><span class="p">:</span> <span class="n">_simplify</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="kc">False</span><span class="p">))</span> +</span><span id="L-79"><a href="#L-79"><span class="linenos"> 79</span></a> +</span><span id="L-80"><a href="#L-80"><span class="linenos"> 80</span></a> <span class="c1"># Post-order transformations</span> +</span><span id="L-81"><a href="#L-81"><span class="linenos"> 81</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_not</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> +</span><span id="L-82"><a href="#L-82"><span class="linenos"> 82</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">flatten</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> +</span><span id="L-83"><a href="#L-83"><span class="linenos"> 83</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_connectors</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span> +</span><span id="L-84"><a href="#L-84"><span class="linenos"> 84</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">remove_complements</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span> +</span><span id="L-85"><a href="#L-85"><span class="linenos"> 85</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_coalesce</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> +</span><span id="L-86"><a href="#L-86"><span class="linenos"> 86</span></a> <span class="n">node</span><span class="o">.</span><span class="n">parent</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">parent</span> +</span><span id="L-87"><a href="#L-87"><span class="linenos"> 87</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_literals</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span> +</span><span id="L-88"><a href="#L-88"><span class="linenos"> 88</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_equality</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> +</span><span id="L-89"><a href="#L-89"><span class="linenos"> 89</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_parens</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> +</span><span id="L-90"><a href="#L-90"><span class="linenos"> 90</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_datetrunc_predicate</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> +</span><span id="L-91"><a href="#L-91"><span class="linenos"> 91</span></a> +</span><span id="L-92"><a href="#L-92"><span class="linenos"> 92</span></a> <span class="k">if</span> <span class="n">root</span><span class="p">:</span> +</span><span id="L-93"><a href="#L-93"><span class="linenos"> 93</span></a> <span class="n">expression</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> +</span><span id="L-94"><a href="#L-94"><span class="linenos"> 94</span></a> +</span><span id="L-95"><a href="#L-95"><span class="linenos"> 95</span></a> <span class="k">return</span> <span class="n">node</span> +</span><span id="L-96"><a href="#L-96"><span class="linenos"> 96</span></a> +</span><span id="L-97"><a href="#L-97"><span class="linenos"> 97</span></a> <span class="n">expression</span> <span class="o">=</span> <span class="n">while_changing</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">_simplify</span><span class="p">)</span> +</span><span id="L-98"><a href="#L-98"><span class="linenos"> 98</span></a> <span class="n">remove_where_true</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span> +</span><span id="L-99"><a href="#L-99"><span class="linenos"> 99</span></a> <span class="k">return</span> <span class="n">expression</span> </span><span id="L-100"><a href="#L-100"><span class="linenos"> 100</span></a> -</span><span id="L-101"><a href="#L-101"><span class="linenos"> 101</span></a><span class="k">def</span> <span class="nf">catch</span><span class="p">(</span><span class="o">*</span><span class="n">exceptions</span><span class="p">):</span> -</span><span id="L-102"><a href="#L-102"><span class="linenos"> 102</span></a><span class="w"> </span><span class="sd">"""Decorator that ignores a simplification function if any of `exceptions` are raised"""</span> -</span><span id="L-103"><a href="#L-103"><span class="linenos"> 103</span></a> -</span><span id="L-104"><a href="#L-104"><span class="linenos"> 104</span></a> <span class="k">def</span> <span class="nf">decorator</span><span class="p">(</span><span class="n">func</span><span class="p">):</span> -</span><span id="L-105"><a href="#L-105"><span class="linenos"> 105</span></a> <span class="k">def</span> <span class="nf">wrapped</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span> -</span><span id="L-106"><a href="#L-106"><span class="linenos"> 106</span></a> <span class="k">try</span><span class="p">:</span> -</span><span id="L-107"><a href="#L-107"><span class="linenos"> 107</span></a> <span class="k">return</span> <span class="n">func</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span> -</span><span id="L-108"><a href="#L-108"><span class="linenos"> 108</span></a> <span class="k">except</span> <span class="n">exceptions</span><span class="p">:</span> -</span><span id="L-109"><a href="#L-109"><span class="linenos"> 109</span></a> <span class="k">return</span> <span class="n">expression</span> -</span><span id="L-110"><a href="#L-110"><span class="linenos"> 110</span></a> -</span><span id="L-111"><a href="#L-111"><span class="linenos"> 111</span></a> <span class="k">return</span> <span class="n">wrapped</span> -</span><span id="L-112"><a href="#L-112"><span class="linenos"> 112</span></a> -</span><span id="L-113"><a href="#L-113"><span class="linenos"> 113</span></a> <span class="k">return</span> <span class="n">decorator</span> -</span><span id="L-114"><a href="#L-114"><span class="linenos"> 114</span></a> +</span><span id="L-101"><a href="#L-101"><span class="linenos"> 101</span></a> +</span><span id="L-102"><a href="#L-102"><span class="linenos"> 102</span></a><span class="k">def</span> <span class="nf">catch</span><span class="p">(</span><span class="o">*</span><span class="n">exceptions</span><span class="p">):</span> +</span><span id="L-103"><a href="#L-103"><span class="linenos"> 103</span></a><span class="w"> </span><span class="sd">"""Decorator that ignores a simplification function if any of `exceptions` are raised"""</span> +</span><span id="L-104"><a href="#L-104"><span class="linenos"> 104</span></a> +</span><span id="L-105"><a href="#L-105"><span class="linenos"> 105</span></a> <span class="k">def</span> <span class="nf">decorator</span><span class="p">(</span><span class="n">func</span><span class="p">):</span> +</span><span id="L-106"><a href="#L-106"><span class="linenos"> 106</span></a> <span class="k">def</span> <span class="nf">wrapped</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span> +</span><span id="L-107"><a href="#L-107"><span class="linenos"> 107</span></a> <span class="k">try</span><span class="p">:</span> +</span><span id="L-108"><a href="#L-108"><span class="linenos"> 108</span></a> <span class="k">return</span> <span class="n">func</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span> +</span><span id="L-109"><a href="#L-109"><span class="linenos"> 109</span></a> <span class="k">except</span> <span class="n">exceptions</span><span class="p">:</span> +</span><span id="L-110"><a href="#L-110"><span class="linenos"> 110</span></a> <span class="k">return</span> <span class="n">expression</span> +</span><span id="L-111"><a href="#L-111"><span class="linenos"> 111</span></a> +</span><span id="L-112"><a href="#L-112"><span class="linenos"> 112</span></a> <span class="k">return</span> <span class="n">wrapped</span> +</span><span id="L-113"><a href="#L-113"><span class="linenos"> 113</span></a> +</span><span id="L-114"><a href="#L-114"><span class="linenos"> 114</span></a> <span class="k">return</span> <span class="n">decorator</span> </span><span id="L-115"><a href="#L-115"><span class="linenos"> 115</span></a> -</span><span id="L-116"><a href="#L-116"><span class="linenos"> 116</span></a><span class="k">def</span> <span class="nf">rewrite_between</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">:</span> -</span><span id="L-117"><a href="#L-117"><span class="linenos"> 117</span></a><span class="w"> </span><span class="sd">"""Rewrite x between y and z to x >= y AND x <= z.</span> -</span><span id="L-118"><a href="#L-118"><span class="linenos"> 118</span></a> -</span><span id="L-119"><a href="#L-119"><span class="linenos"> 119</span></a><span class="sd"> This is done because comparison simplification is only done on lt/lte/gt/gte.</span> -</span><span id="L-120"><a href="#L-120"><span class="linenos"> 120</span></a><span class="sd"> """</span> -</span><span id="L-121"><a href="#L-121"><span class="linenos"> 121</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Between</span><span class="p">):</span> -</span><span id="L-122"><a href="#L-122"><span class="linenos"> 122</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">and_</span><span class="p">(</span> -</span><span id="L-123"><a href="#L-123"><span class="linenos"> 123</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">GTE</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">copy</span><span class="p">(),</span> <span class="n">expression</span><span class="o">=</span><span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">"low"</span><span class="p">]),</span> -</span><span id="L-124"><a href="#L-124"><span class="linenos"> 124</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">LTE</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">copy</span><span class="p">(),</span> <span class="n">expression</span><span class="o">=</span><span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">"high"</span><span class="p">]),</span> -</span><span id="L-125"><a href="#L-125"><span class="linenos"> 125</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> -</span><span id="L-126"><a href="#L-126"><span class="linenos"> 126</span></a> <span class="p">)</span> -</span><span id="L-127"><a href="#L-127"><span class="linenos"> 127</span></a> <span class="k">return</span> <span class="n">expression</span> -</span><span id="L-128"><a href="#L-128"><span class="linenos"> 128</span></a> +</span><span id="L-116"><a href="#L-116"><span class="linenos"> 116</span></a> +</span><span id="L-117"><a href="#L-117"><span class="linenos"> 117</span></a><span class="k">def</span> <span class="nf">rewrite_between</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">:</span> +</span><span id="L-118"><a href="#L-118"><span class="linenos"> 118</span></a><span class="w"> </span><span class="sd">"""Rewrite x between y and z to x >= y AND x <= z.</span> +</span><span id="L-119"><a href="#L-119"><span class="linenos"> 119</span></a> +</span><span id="L-120"><a href="#L-120"><span class="linenos"> 120</span></a><span class="sd"> This is done because comparison simplification is only done on lt/lte/gt/gte.</span> +</span><span id="L-121"><a href="#L-121"><span class="linenos"> 121</span></a><span class="sd"> """</span> +</span><span id="L-122"><a href="#L-122"><span class="linenos"> 122</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Between</span><span class="p">):</span> +</span><span id="L-123"><a href="#L-123"><span class="linenos"> 123</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">and_</span><span class="p">(</span> +</span><span id="L-124"><a href="#L-124"><span class="linenos"> 124</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">GTE</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">copy</span><span class="p">(),</span> <span class="n">expression</span><span class="o">=</span><span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">"low"</span><span class="p">]),</span> +</span><span id="L-125"><a href="#L-125"><span class="linenos"> 125</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">LTE</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">copy</span><span class="p">(),</span> <span class="n">expression</span><span class="o">=</span><span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">"high"</span><span class="p">]),</span> +</span><span id="L-126"><a href="#L-126"><span class="linenos"> 126</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> +</span><span id="L-127"><a href="#L-127"><span class="linenos"> 127</span></a> <span class="p">)</span> +</span><span id="L-128"><a href="#L-128"><span class="linenos"> 128</span></a> <span class="k">return</span> <span class="n">expression</span> </span><span id="L-129"><a href="#L-129"><span class="linenos"> 129</span></a> -</span><span id="L-130"><a href="#L-130"><span class="linenos"> 130</span></a><span class="k">def</span> <span class="nf">simplify_not</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span> -</span><span id="L-131"><a href="#L-131"><span class="linenos"> 131</span></a><span class="w"> </span><span class="sd">"""</span> -</span><span id="L-132"><a href="#L-132"><span class="linenos"> 132</span></a><span class="sd"> Demorgan's Law</span> -</span><span id="L-133"><a href="#L-133"><span class="linenos"> 133</span></a><span class="sd"> NOT (x OR y) -> NOT x AND NOT y</span> -</span><span id="L-134"><a href="#L-134"><span class="linenos"> 134</span></a><span class="sd"> NOT (x AND y) -> NOT x OR NOT y</span> -</span><span id="L-135"><a href="#L-135"><span class="linenos"> 135</span></a><span class="sd"> """</span> -</span><span id="L-136"><a href="#L-136"><span class="linenos"> 136</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">):</span> -</span><span id="L-137"><a href="#L-137"><span class="linenos"> 137</span></a> <span class="k">if</span> <span class="n">is_null</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">):</span> -</span><span id="L-138"><a href="#L-138"><span class="linenos"> 138</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()</span> -</span><span id="L-139"><a href="#L-139"><span class="linenos"> 139</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Paren</span><span class="p">):</span> -</span><span id="L-140"><a href="#L-140"><span class="linenos"> 140</span></a> <span class="n">condition</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">unnest</span><span class="p">()</span> -</span><span id="L-141"><a href="#L-141"><span class="linenos"> 141</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">condition</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">):</span> -</span><span id="L-142"><a href="#L-142"><span class="linenos"> 142</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">or_</span><span class="p">(</span> -</span><span id="L-143"><a href="#L-143"><span class="linenos"> 143</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">not_</span><span class="p">(</span><span class="n">condition</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">),</span> -</span><span id="L-144"><a href="#L-144"><span class="linenos"> 144</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">not_</span><span class="p">(</span><span class="n">condition</span><span class="o">.</span><span class="n">right</span><span class="p">,</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">),</span> -</span><span id="L-145"><a href="#L-145"><span class="linenos"> 145</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> -</span><span id="L-146"><a href="#L-146"><span class="linenos"> 146</span></a> <span class="p">)</span> -</span><span id="L-147"><a href="#L-147"><span class="linenos"> 147</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">condition</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Or</span><span class="p">):</span> -</span><span id="L-148"><a href="#L-148"><span class="linenos"> 148</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">and_</span><span class="p">(</span> -</span><span id="L-149"><a href="#L-149"><span class="linenos"> 149</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">not_</span><span class="p">(</span><span class="n">condition</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">),</span> -</span><span id="L-150"><a href="#L-150"><span class="linenos"> 150</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">not_</span><span class="p">(</span><span class="n">condition</span><span class="o">.</span><span class="n">right</span><span class="p">,</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">),</span> -</span><span id="L-151"><a href="#L-151"><span class="linenos"> 151</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> -</span><span id="L-152"><a href="#L-152"><span class="linenos"> 152</span></a> <span class="p">)</span> -</span><span id="L-153"><a href="#L-153"><span class="linenos"> 153</span></a> <span class="k">if</span> <span class="n">is_null</span><span class="p">(</span><span class="n">condition</span><span class="p">):</span> -</span><span id="L-154"><a href="#L-154"><span class="linenos"> 154</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()</span> -</span><span id="L-155"><a href="#L-155"><span class="linenos"> 155</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">):</span> -</span><span id="L-156"><a href="#L-156"><span class="linenos"> 156</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> -</span><span id="L-157"><a href="#L-157"><span class="linenos"> 157</span></a> <span class="k">if</span> <span class="n">is_false</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">):</span> -</span><span id="L-158"><a href="#L-158"><span class="linenos"> 158</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> -</span><span id="L-159"><a href="#L-159"><span class="linenos"> 159</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">):</span> -</span><span id="L-160"><a href="#L-160"><span class="linenos"> 160</span></a> <span class="c1"># double negation</span> -</span><span id="L-161"><a href="#L-161"><span class="linenos"> 161</span></a> <span class="c1"># NOT NOT x -> x</span> -</span><span id="L-162"><a href="#L-162"><span class="linenos"> 162</span></a> <span class="k">return</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">this</span> -</span><span id="L-163"><a href="#L-163"><span class="linenos"> 163</span></a> <span class="k">return</span> <span class="n">expression</span> -</span><span id="L-164"><a href="#L-164"><span class="linenos"> 164</span></a> +</span><span id="L-130"><a href="#L-130"><span class="linenos"> 130</span></a> +</span><span id="L-131"><a href="#L-131"><span class="linenos"> 131</span></a><span class="k">def</span> <span class="nf">simplify_not</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span> +</span><span id="L-132"><a href="#L-132"><span class="linenos"> 132</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="L-133"><a href="#L-133"><span class="linenos"> 133</span></a><span class="sd"> Demorgan's Law</span> +</span><span id="L-134"><a href="#L-134"><span class="linenos"> 134</span></a><span class="sd"> NOT (x OR y) -> NOT x AND NOT y</span> +</span><span id="L-135"><a href="#L-135"><span class="linenos"> 135</span></a><span class="sd"> NOT (x AND y) -> NOT x OR NOT y</span> +</span><span id="L-136"><a href="#L-136"><span class="linenos"> 136</span></a><span class="sd"> """</span> +</span><span id="L-137"><a href="#L-137"><span class="linenos"> 137</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">):</span> +</span><span id="L-138"><a href="#L-138"><span class="linenos"> 138</span></a> <span class="k">if</span> <span class="n">is_null</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">):</span> +</span><span id="L-139"><a href="#L-139"><span class="linenos"> 139</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()</span> +</span><span id="L-140"><a href="#L-140"><span class="linenos"> 140</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Paren</span><span class="p">):</span> +</span><span id="L-141"><a href="#L-141"><span class="linenos"> 141</span></a> <span class="n">condition</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">unnest</span><span class="p">()</span> +</span><span id="L-142"><a href="#L-142"><span class="linenos"> 142</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">condition</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">):</span> +</span><span id="L-143"><a href="#L-143"><span class="linenos"> 143</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">or_</span><span class="p">(</span> +</span><span id="L-144"><a href="#L-144"><span class="linenos"> 144</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">not_</span><span class="p">(</span><span class="n">condition</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">),</span> +</span><span id="L-145"><a href="#L-145"><span class="linenos"> 145</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">not_</span><span class="p">(</span><span class="n">condition</span><span class="o">.</span><span class="n">right</span><span class="p">,</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">),</span> +</span><span id="L-146"><a href="#L-146"><span class="linenos"> 146</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> +</span><span id="L-147"><a href="#L-147"><span class="linenos"> 147</span></a> <span class="p">)</span> +</span><span id="L-148"><a href="#L-148"><span class="linenos"> 148</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">condition</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Or</span><span class="p">):</span> +</span><span id="L-149"><a href="#L-149"><span class="linenos"> 149</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">and_</span><span class="p">(</span> +</span><span id="L-150"><a href="#L-150"><span class="linenos"> 150</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">not_</span><span class="p">(</span><span class="n">condition</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">),</span> +</span><span id="L-151"><a href="#L-151"><span class="linenos"> 151</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">not_</span><span class="p">(</span><span class="n">condition</span><span class="o">.</span><span class="n">right</span><span class="p">,</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">),</span> +</span><span id="L-152"><a href="#L-152"><span class="linenos"> 152</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> +</span><span id="L-153"><a href="#L-153"><span class="linenos"> 153</span></a> <span class="p">)</span> +</span><span id="L-154"><a href="#L-154"><span class="linenos"> 154</span></a> <span class="k">if</span> <span class="n">is_null</span><span class="p">(</span><span class="n">condition</span><span class="p">):</span> +</span><span id="L-155"><a href="#L-155"><span class="linenos"> 155</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()</span> +</span><span id="L-156"><a href="#L-156"><span class="linenos"> 156</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">):</span> +</span><span id="L-157"><a href="#L-157"><span class="linenos"> 157</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> +</span><span id="L-158"><a href="#L-158"><span class="linenos"> 158</span></a> <span class="k">if</span> <span class="n">is_false</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">):</span> +</span><span id="L-159"><a href="#L-159"><span class="linenos"> 159</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> +</span><span id="L-160"><a href="#L-160"><span class="linenos"> 160</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">):</span> +</span><span id="L-161"><a href="#L-161"><span class="linenos"> 161</span></a> <span class="c1"># double negation</span> +</span><span id="L-162"><a href="#L-162"><span class="linenos"> 162</span></a> <span class="c1"># NOT NOT x -> x</span> +</span><span id="L-163"><a href="#L-163"><span class="linenos"> 163</span></a> <span class="k">return</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">this</span> +</span><span id="L-164"><a href="#L-164"><span class="linenos"> 164</span></a> <span class="k">return</span> <span class="n">expression</span> </span><span id="L-165"><a href="#L-165"><span class="linenos"> 165</span></a> -</span><span id="L-166"><a href="#L-166"><span class="linenos"> 166</span></a><span class="k">def</span> <span class="nf">flatten</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span> -</span><span id="L-167"><a href="#L-167"><span class="linenos"> 167</span></a><span class="w"> </span><span class="sd">"""</span> -</span><span id="L-168"><a href="#L-168"><span class="linenos"> 168</span></a><span class="sd"> A AND (B AND C) -> A AND B AND C</span> -</span><span id="L-169"><a href="#L-169"><span class="linenos"> 169</span></a><span class="sd"> A OR (B OR C) -> A OR B OR C</span> -</span><span id="L-170"><a href="#L-170"><span class="linenos"> 170</span></a><span class="sd"> """</span> -</span><span id="L-171"><a href="#L-171"><span class="linenos"> 171</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Connector</span><span class="p">):</span> -</span><span id="L-172"><a href="#L-172"><span class="linenos"> 172</span></a> <span class="k">for</span> <span class="n">node</span> <span class="ow">in</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">values</span><span class="p">():</span> -</span><span id="L-173"><a href="#L-173"><span class="linenos"> 173</span></a> <span class="n">child</span> <span class="o">=</span> <span class="n">node</span><span class="o">.</span><span class="n">unnest</span><span class="p">()</span> -</span><span id="L-174"><a href="#L-174"><span class="linenos"> 174</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">child</span><span class="p">,</span> <span class="n">expression</span><span class="o">.</span><span class="vm">__class__</span><span class="p">):</span> -</span><span id="L-175"><a href="#L-175"><span class="linenos"> 175</span></a> <span class="n">node</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">child</span><span class="p">)</span> -</span><span id="L-176"><a href="#L-176"><span class="linenos"> 176</span></a> <span class="k">return</span> <span class="n">expression</span> -</span><span id="L-177"><a href="#L-177"><span class="linenos"> 177</span></a> +</span><span id="L-166"><a href="#L-166"><span class="linenos"> 166</span></a> +</span><span id="L-167"><a href="#L-167"><span class="linenos"> 167</span></a><span class="k">def</span> <span class="nf">flatten</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span> +</span><span id="L-168"><a href="#L-168"><span class="linenos"> 168</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="L-169"><a href="#L-169"><span class="linenos"> 169</span></a><span class="sd"> A AND (B AND C) -> A AND B AND C</span> +</span><span id="L-170"><a href="#L-170"><span class="linenos"> 170</span></a><span class="sd"> A OR (B OR C) -> A OR B OR C</span> +</span><span id="L-171"><a href="#L-171"><span class="linenos"> 171</span></a><span class="sd"> """</span> +</span><span id="L-172"><a href="#L-172"><span class="linenos"> 172</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Connector</span><span class="p">):</span> +</span><span id="L-173"><a href="#L-173"><span class="linenos"> 173</span></a> <span class="k">for</span> <span class="n">node</span> <span class="ow">in</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">values</span><span class="p">():</span> +</span><span id="L-174"><a href="#L-174"><span class="linenos"> 174</span></a> <span class="n">child</span> <span class="o">=</span> <span class="n">node</span><span class="o">.</span><span class="n">unnest</span><span class="p">()</span> +</span><span id="L-175"><a href="#L-175"><span class="linenos"> 175</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">child</span><span class="p">,</span> <span class="n">expression</span><span class="o">.</span><span class="vm">__class__</span><span class="p">):</span> +</span><span id="L-176"><a href="#L-176"><span class="linenos"> 176</span></a> <span class="n">node</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">child</span><span class="p">)</span> +</span><span id="L-177"><a href="#L-177"><span class="linenos"> 177</span></a> <span class="k">return</span> <span class="n">expression</span> </span><span id="L-178"><a href="#L-178"><span class="linenos"> 178</span></a> -</span><span id="L-179"><a href="#L-179"><span class="linenos"> 179</span></a><span class="k">def</span> <span class="nf">simplify_connectors</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span> -</span><span id="L-180"><a href="#L-180"><span class="linenos"> 180</span></a> <span class="k">def</span> <span class="nf">_simplify_connectors</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">left</span><span class="p">,</span> <span class="n">right</span><span class="p">):</span> -</span><span id="L-181"><a href="#L-181"><span class="linenos"> 181</span></a> <span class="k">if</span> <span class="n">left</span> <span class="o">==</span> <span class="n">right</span><span class="p">:</span> -</span><span id="L-182"><a href="#L-182"><span class="linenos"> 182</span></a> <span class="k">return</span> <span class="n">left</span> -</span><span id="L-183"><a href="#L-183"><span class="linenos"> 183</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">):</span> -</span><span id="L-184"><a href="#L-184"><span class="linenos"> 184</span></a> <span class="k">if</span> <span class="n">is_false</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">or</span> <span class="n">is_false</span><span class="p">(</span><span class="n">right</span><span class="p">):</span> -</span><span id="L-185"><a href="#L-185"><span class="linenos"> 185</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> -</span><span id="L-186"><a href="#L-186"><span class="linenos"> 186</span></a> <span class="k">if</span> <span class="n">is_null</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">or</span> <span class="n">is_null</span><span class="p">(</span><span class="n">right</span><span class="p">):</span> -</span><span id="L-187"><a href="#L-187"><span class="linenos"> 187</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()</span> -</span><span id="L-188"><a href="#L-188"><span class="linenos"> 188</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">and</span> <span class="n">always_true</span><span class="p">(</span><span class="n">right</span><span class="p">):</span> -</span><span id="L-189"><a href="#L-189"><span class="linenos"> 189</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> -</span><span id="L-190"><a href="#L-190"><span class="linenos"> 190</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">left</span><span class="p">):</span> -</span><span id="L-191"><a href="#L-191"><span class="linenos"> 191</span></a> <span class="k">return</span> <span class="n">right</span> -</span><span id="L-192"><a href="#L-192"><span class="linenos"> 192</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">right</span><span class="p">):</span> -</span><span id="L-193"><a href="#L-193"><span class="linenos"> 193</span></a> <span class="k">return</span> <span class="n">left</span> -</span><span id="L-194"><a href="#L-194"><span class="linenos"> 194</span></a> <span class="k">return</span> <span class="n">_simplify_comparison</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">left</span><span class="p">,</span> <span class="n">right</span><span class="p">)</span> -</span><span id="L-195"><a href="#L-195"><span class="linenos"> 195</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Or</span><span class="p">):</span> -</span><span id="L-196"><a href="#L-196"><span class="linenos"> 196</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">or</span> <span class="n">always_true</span><span class="p">(</span><span class="n">right</span><span class="p">):</span> -</span><span id="L-197"><a href="#L-197"><span class="linenos"> 197</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> -</span><span id="L-198"><a href="#L-198"><span class="linenos"> 198</span></a> <span class="k">if</span> <span class="n">is_false</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">and</span> <span class="n">is_false</span><span class="p">(</span><span class="n">right</span><span class="p">):</span> -</span><span id="L-199"><a href="#L-199"><span class="linenos"> 199</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> -</span><span id="L-200"><a href="#L-200"><span class="linenos"> 200</span></a> <span class="k">if</span> <span class="p">(</span> -</span><span id="L-201"><a href="#L-201"><span class="linenos"> 201</span></a> <span class="p">(</span><span class="n">is_null</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">and</span> <span class="n">is_null</span><span class="p">(</span><span class="n">right</span><span class="p">))</span> -</span><span id="L-202"><a href="#L-202"><span class="linenos"> 202</span></a> <span class="ow">or</span> <span class="p">(</span><span class="n">is_null</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">and</span> <span class="n">is_false</span><span class="p">(</span><span class="n">right</span><span class="p">))</span> -</span><span id="L-203"><a href="#L-203"><span class="linenos"> 203</span></a> <span class="ow">or</span> <span class="p">(</span><span class="n">is_false</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">and</span> <span class="n">is_null</span><span class="p">(</span><span class="n">right</span><span class="p">))</span> -</span><span id="L-204"><a href="#L-204"><span class="linenos"> 204</span></a> <span class="p">):</span> -</span><span id="L-205"><a href="#L-205"><span class="linenos"> 205</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()</span> -</span><span id="L-206"><a href="#L-206"><span class="linenos"> 206</span></a> <span class="k">if</span> <span class="n">is_false</span><span class="p">(</span><span class="n">left</span><span class="p">):</span> -</span><span id="L-207"><a href="#L-207"><span class="linenos"> 207</span></a> <span class="k">return</span> <span class="n">right</span> -</span><span id="L-208"><a href="#L-208"><span class="linenos"> 208</span></a> <span class="k">if</span> <span class="n">is_false</span><span class="p">(</span><span class="n">right</span><span class="p">):</span> -</span><span id="L-209"><a href="#L-209"><span class="linenos"> 209</span></a> <span class="k">return</span> <span class="n">left</span> -</span><span id="L-210"><a href="#L-210"><span class="linenos"> 210</span></a> <span class="k">return</span> <span class="n">_simplify_comparison</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">left</span><span class="p">,</span> <span class="n">right</span><span class="p">,</span> <span class="n">or_</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span> -</span><span id="L-211"><a href="#L-211"><span class="linenos"> 211</span></a> -</span><span id="L-212"><a href="#L-212"><span class="linenos"> 212</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Connector</span><span class="p">):</span> -</span><span id="L-213"><a href="#L-213"><span class="linenos"> 213</span></a> <span class="k">return</span> <span class="n">_flat_simplify</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">_simplify_connectors</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span> -</span><span id="L-214"><a href="#L-214"><span class="linenos"> 214</span></a> <span class="k">return</span> <span class="n">expression</span> -</span><span id="L-215"><a href="#L-215"><span class="linenos"> 215</span></a> +</span><span id="L-179"><a href="#L-179"><span class="linenos"> 179</span></a> +</span><span id="L-180"><a href="#L-180"><span class="linenos"> 180</span></a><span class="k">def</span> <span class="nf">simplify_connectors</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span> +</span><span id="L-181"><a href="#L-181"><span class="linenos"> 181</span></a> <span class="k">def</span> <span class="nf">_simplify_connectors</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">left</span><span class="p">,</span> <span class="n">right</span><span class="p">):</span> +</span><span id="L-182"><a href="#L-182"><span class="linenos"> 182</span></a> <span class="k">if</span> <span class="n">left</span> <span class="o">==</span> <span class="n">right</span><span class="p">:</span> +</span><span id="L-183"><a href="#L-183"><span class="linenos"> 183</span></a> <span class="k">return</span> <span class="n">left</span> +</span><span id="L-184"><a href="#L-184"><span class="linenos"> 184</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">):</span> +</span><span id="L-185"><a href="#L-185"><span class="linenos"> 185</span></a> <span class="k">if</span> <span class="n">is_false</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">or</span> <span class="n">is_false</span><span class="p">(</span><span class="n">right</span><span class="p">):</span> +</span><span id="L-186"><a href="#L-186"><span class="linenos"> 186</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> +</span><span id="L-187"><a href="#L-187"><span class="linenos"> 187</span></a> <span class="k">if</span> <span class="n">is_null</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">or</span> <span class="n">is_null</span><span class="p">(</span><span class="n">right</span><span class="p">):</span> +</span><span id="L-188"><a href="#L-188"><span class="linenos"> 188</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()</span> +</span><span id="L-189"><a href="#L-189"><span class="linenos"> 189</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">and</span> <span class="n">always_true</span><span class="p">(</span><span class="n">right</span><span class="p">):</span> +</span><span id="L-190"><a href="#L-190"><span class="linenos"> 190</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> +</span><span id="L-191"><a href="#L-191"><span class="linenos"> 191</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">left</span><span class="p">):</span> +</span><span id="L-192"><a href="#L-192"><span class="linenos"> 192</span></a> <span class="k">return</span> <span class="n">right</span> +</span><span id="L-193"><a href="#L-193"><span class="linenos"> 193</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">right</span><span class="p">):</span> +</span><span id="L-194"><a href="#L-194"><span class="linenos"> 194</span></a> <span class="k">return</span> <span class="n">left</span> +</span><span id="L-195"><a href="#L-195"><span class="linenos"> 195</span></a> <span class="k">return</span> <span class="n">_simplify_comparison</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">left</span><span class="p">,</span> <span class="n">right</span><span class="p">)</span> +</span><span id="L-196"><a href="#L-196"><span class="linenos"> 196</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Or</span><span class="p">):</span> +</span><span id="L-197"><a href="#L-197"><span class="linenos"> 197</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">or</span> <span class="n">always_true</span><span class="p">(</span><span class="n">right</span><span class="p">):</span> +</span><span id="L-198"><a href="#L-198"><span class="linenos"> 198</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> +</span><span id="L-199"><a href="#L-199"><span class="linenos"> 199</span></a> <span class="k">if</span> <span class="n">is_false</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">and</span> <span class="n">is_false</span><span class="p">(</span><span class="n">right</span><span class="p">):</span> +</span><span id="L-200"><a href="#L-200"><span class="linenos"> 200</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> +</span><span id="L-201"><a href="#L-201"><span class="linenos"> 201</span></a> <span class="k">if</span> <span class="p">(</span> +</span><span id="L-202"><a href="#L-202"><span class="linenos"> 202</span></a> <span class="p">(</span><span class="n">is_null</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">and</span> <span class="n">is_null</span><span class="p">(</span><span class="n">right</span><span class="p">))</span> +</span><span id="L-203"><a href="#L-203"><span class="linenos"> 203</span></a> <span class="ow">or</span> <span class="p">(</span><span class="n">is_null</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">and</span> <span class="n">is_false</span><span class="p">(</span><span class="n">right</span><span class="p">))</span> +</span><span id="L-204"><a href="#L-204"><span class="linenos"> 204</span></a> <span class="ow">or</span> <span class="p">(</span><span class="n">is_false</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">and</span> <span class="n">is_null</span><span class="p">(</span><span class="n">right</span><span class="p">))</span> +</span><span id="L-205"><a href="#L-205"><span class="linenos"> 205</span></a> <span class="p">):</span> +</span><span id="L-206"><a href="#L-206"><span class="linenos"> 206</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()</span> +</span><span id="L-207"><a href="#L-207"><span class="linenos"> 207</span></a> <span class="k">if</span> <span class="n">is_false</span><span class="p">(</span><span class="n">left</span><span class="p">):</span> +</span><span id="L-208"><a href="#L-208"><span class="linenos"> 208</span></a> <span class="k">return</span> <span class="n">right</span> +</span><span id="L-209"><a href="#L-209"><span class="linenos"> 209</span></a> <span class="k">if</span> <span class="n">is_false</span><span class="p">(</span><span class="n">right</span><span class="p">):</span> +</span><span id="L-210"><a href="#L-210"><span class="linenos"> 210</span></a> <span class="k">return</span> <span class="n">left</span> +</span><span id="L-211"><a href="#L-211"><span class="linenos"> 211</span></a> <span class="k">return</span> <span class="n">_simplify_comparison</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">left</span><span class="p">,</span> <span class="n">right</span><span class="p">,</span> <span class="n">or_</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span> +</span><span id="L-212"><a href="#L-212"><span class="linenos"> 212</span></a> +</span><span id="L-213"><a href="#L-213"><span class="linenos"> 213</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Connector</span><span class="p">):</span> +</span><span id="L-214"><a href="#L-214"><span class="linenos"> 214</span></a> <span class="k">return</span> <span class="n">_flat_simplify</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">_simplify_connectors</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span> +</span><span id="L-215"><a href="#L-215"><span class="linenos"> 215</span></a> <span class="k">return</span> <span class="n">expression</span> </span><span id="L-216"><a href="#L-216"><span class="linenos"> 216</span></a> -</span><span id="L-217"><a href="#L-217"><span class="linenos"> 217</span></a><span class="n">LT_LTE</span> <span class="o">=</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">LT</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">LTE</span><span class="p">)</span> -</span><span id="L-218"><a href="#L-218"><span class="linenos"> 218</span></a><span class="n">GT_GTE</span> <span class="o">=</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">GT</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">GTE</span><span class="p">)</span> -</span><span id="L-219"><a href="#L-219"><span class="linenos"> 219</span></a> -</span><span id="L-220"><a href="#L-220"><span class="linenos"> 220</span></a><span class="n">COMPARISONS</span> <span class="o">=</span> <span class="p">(</span> -</span><span id="L-221"><a href="#L-221"><span class="linenos"> 221</span></a> <span class="o">*</span><span class="n">LT_LTE</span><span class="p">,</span> -</span><span id="L-222"><a href="#L-222"><span class="linenos"> 222</span></a> <span class="o">*</span><span class="n">GT_GTE</span><span class="p">,</span> -</span><span id="L-223"><a href="#L-223"><span class="linenos"> 223</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">EQ</span><span class="p">,</span> -</span><span id="L-224"><a href="#L-224"><span class="linenos"> 224</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">NEQ</span><span class="p">,</span> -</span><span id="L-225"><a href="#L-225"><span class="linenos"> 225</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Is</span><span class="p">,</span> -</span><span id="L-226"><a href="#L-226"><span class="linenos"> 226</span></a><span class="p">)</span> -</span><span id="L-227"><a href="#L-227"><span class="linenos"> 227</span></a> -</span><span id="L-228"><a href="#L-228"><span class="linenos"> 228</span></a><span class="n">INVERSE_COMPARISONS</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Type</span><span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">],</span> <span class="n">t</span><span class="o">.</span><span class="n">Type</span><span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">]]</span> <span class="o">=</span> <span class="p">{</span> -</span><span id="L-229"><a href="#L-229"><span class="linenos"> 229</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">LT</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">GT</span><span class="p">,</span> -</span><span id="L-230"><a href="#L-230"><span class="linenos"> 230</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">GT</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">LT</span><span class="p">,</span> -</span><span id="L-231"><a href="#L-231"><span class="linenos"> 231</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">LTE</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">GTE</span><span class="p">,</span> -</span><span id="L-232"><a href="#L-232"><span class="linenos"> 232</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">GTE</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">LTE</span><span class="p">,</span> -</span><span id="L-233"><a href="#L-233"><span class="linenos"> 233</span></a><span class="p">}</span> -</span><span id="L-234"><a href="#L-234"><span class="linenos"> 234</span></a> +</span><span id="L-217"><a href="#L-217"><span class="linenos"> 217</span></a> +</span><span id="L-218"><a href="#L-218"><span class="linenos"> 218</span></a><span class="n">LT_LTE</span> <span class="o">=</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">LT</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">LTE</span><span class="p">)</span> +</span><span id="L-219"><a href="#L-219"><span class="linenos"> 219</span></a><span class="n">GT_GTE</span> <span class="o">=</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">GT</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">GTE</span><span class="p">)</span> +</span><span id="L-220"><a href="#L-220"><span class="linenos"> 220</span></a> +</span><span id="L-221"><a href="#L-221"><span class="linenos"> 221</span></a><span class="n">COMPARISONS</span> <span class="o">=</span> <span class="p">(</span> +</span><span id="L-222"><a href="#L-222"><span class="linenos"> 222</span></a> <span class="o">*</span><span class="n">LT_LTE</span><span class="p">,</span> +</span><span id="L-223"><a href="#L-223"><span class="linenos"> 223</span></a> <span class="o">*</span><span class="n">GT_GTE</span><span class="p">,</span> +</span><span id="L-224"><a href="#L-224"><span class="linenos"> 224</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">EQ</span><span class="p">,</span> +</span><span id="L-225"><a href="#L-225"><span class="linenos"> 225</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">NEQ</span><span class="p">,</span> +</span><span id="L-226"><a href="#L-226"><span class="linenos"> 226</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Is</span><span class="p">,</span> +</span><span id="L-227"><a href="#L-227"><span class="linenos"> 227</span></a><span class="p">)</span> +</span><span id="L-228"><a href="#L-228"><span class="linenos"> 228</span></a> +</span><span id="L-229"><a href="#L-229"><span class="linenos"> 229</span></a><span class="n">INVERSE_COMPARISONS</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Type</span><span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">],</span> <span class="n">t</span><span class="o">.</span><span class="n">Type</span><span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">]]</span> <span class="o">=</span> <span class="p">{</span> +</span><span id="L-230"><a href="#L-230"><span class="linenos"> 230</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">LT</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">GT</span><span class="p">,</span> +</span><span id="L-231"><a href="#L-231"><span class="linenos"> 231</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">GT</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">LT</span><span class="p">,</span> +</span><span id="L-232"><a href="#L-232"><span class="linenos"> 232</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">LTE</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">GTE</span><span class="p">,</span> +</span><span id="L-233"><a href="#L-233"><span class="linenos"> 233</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">GTE</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">LTE</span><span class="p">,</span> +</span><span id="L-234"><a href="#L-234"><span class="linenos"> 234</span></a><span class="p">}</span> </span><span id="L-235"><a href="#L-235"><span class="linenos"> 235</span></a> -</span><span id="L-236"><a href="#L-236"><span class="linenos"> 236</span></a><span class="k">def</span> <span class="nf">_simplify_comparison</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">left</span><span class="p">,</span> <span class="n">right</span><span class="p">,</span> <span class="n">or_</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span> -</span><span id="L-237"><a href="#L-237"><span class="linenos"> 237</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">left</span><span class="p">,</span> <span class="n">COMPARISONS</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">right</span><span class="p">,</span> <span class="n">COMPARISONS</span><span class="p">):</span> -</span><span id="L-238"><a href="#L-238"><span class="linenos"> 238</span></a> <span class="n">ll</span><span class="p">,</span> <span class="n">lr</span> <span class="o">=</span> <span class="n">left</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">values</span><span class="p">()</span> -</span><span id="L-239"><a href="#L-239"><span class="linenos"> 239</span></a> <span class="n">rl</span><span class="p">,</span> <span class="n">rr</span> <span class="o">=</span> <span class="n">right</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">values</span><span class="p">()</span> -</span><span id="L-240"><a href="#L-240"><span class="linenos"> 240</span></a> -</span><span id="L-241"><a href="#L-241"><span class="linenos"> 241</span></a> <span class="n">largs</span> <span class="o">=</span> <span class="p">{</span><span class="n">ll</span><span class="p">,</span> <span class="n">lr</span><span class="p">}</span> -</span><span id="L-242"><a href="#L-242"><span class="linenos"> 242</span></a> <span class="n">rargs</span> <span class="o">=</span> <span class="p">{</span><span class="n">rl</span><span class="p">,</span> <span class="n">rr</span><span class="p">}</span> -</span><span id="L-243"><a href="#L-243"><span class="linenos"> 243</span></a> -</span><span id="L-244"><a href="#L-244"><span class="linenos"> 244</span></a> <span class="n">matching</span> <span class="o">=</span> <span class="n">largs</span> <span class="o">&</span> <span class="n">rargs</span> -</span><span id="L-245"><a href="#L-245"><span class="linenos"> 245</span></a> <span class="n">columns</span> <span class="o">=</span> <span class="p">{</span><span class="n">m</span> <span class="k">for</span> <span class="n">m</span> <span class="ow">in</span> <span class="n">matching</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">m</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">)}</span> -</span><span id="L-246"><a href="#L-246"><span class="linenos"> 246</span></a> -</span><span id="L-247"><a href="#L-247"><span class="linenos"> 247</span></a> <span class="k">if</span> <span class="n">matching</span> <span class="ow">and</span> <span class="n">columns</span><span class="p">:</span> -</span><span id="L-248"><a href="#L-248"><span class="linenos"> 248</span></a> <span class="k">try</span><span class="p">:</span> -</span><span id="L-249"><a href="#L-249"><span class="linenos"> 249</span></a> <span class="n">l</span> <span class="o">=</span> <span class="n">first</span><span class="p">(</span><span class="n">largs</span> <span class="o">-</span> <span class="n">columns</span><span class="p">)</span> -</span><span id="L-250"><a href="#L-250"><span class="linenos"> 250</span></a> <span class="n">r</span> <span class="o">=</span> <span class="n">first</span><span class="p">(</span><span class="n">rargs</span> <span class="o">-</span> <span class="n">columns</span><span class="p">)</span> -</span><span id="L-251"><a href="#L-251"><span class="linenos"> 251</span></a> <span class="k">except</span> <span class="ne">StopIteration</span><span class="p">:</span> -</span><span id="L-252"><a href="#L-252"><span class="linenos"> 252</span></a> <span class="k">return</span> <span class="n">expression</span> -</span><span id="L-253"><a href="#L-253"><span class="linenos"> 253</span></a> -</span><span id="L-254"><a href="#L-254"><span class="linenos"> 254</span></a> <span class="c1"># make sure the comparison is always of the form x > 1 instead of 1 < x</span> -</span><span id="L-255"><a href="#L-255"><span class="linenos"> 255</span></a> <span class="k">if</span> <span class="n">left</span><span class="o">.</span><span class="vm">__class__</span> <span class="ow">in</span> <span class="n">INVERSE_COMPARISONS</span> <span class="ow">and</span> <span class="n">l</span> <span class="o">==</span> <span class="n">ll</span><span class="p">:</span> -</span><span id="L-256"><a href="#L-256"><span class="linenos"> 256</span></a> <span class="n">left</span> <span class="o">=</span> <span class="n">INVERSE_COMPARISONS</span><span class="p">[</span><span class="n">left</span><span class="o">.</span><span class="vm">__class__</span><span class="p">](</span><span class="n">this</span><span class="o">=</span><span class="n">lr</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="n">ll</span><span class="p">)</span> -</span><span id="L-257"><a href="#L-257"><span class="linenos"> 257</span></a> <span class="k">if</span> <span class="n">right</span><span class="o">.</span><span class="vm">__class__</span> <span class="ow">in</span> <span class="n">INVERSE_COMPARISONS</span> <span class="ow">and</span> <span class="n">r</span> <span class="o">==</span> <span class="n">rl</span><span class="p">:</span> -</span><span id="L-258"><a href="#L-258"><span class="linenos"> 258</span></a> <span class="n">right</span> <span class="o">=</span> <span class="n">INVERSE_COMPARISONS</span><span class="p">[</span><span class="n">right</span><span class="o">.</span><span class="vm">__class__</span><span class="p">](</span><span class="n">this</span><span class="o">=</span><span class="n">rr</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="n">rl</span><span class="p">)</span> -</span><span id="L-259"><a href="#L-259"><span class="linenos"> 259</span></a> -</span><span id="L-260"><a href="#L-260"><span class="linenos"> 260</span></a> <span class="k">if</span> <span class="n">l</span><span class="o">.</span><span class="n">is_number</span> <span class="ow">and</span> <span class="n">r</span><span class="o">.</span><span class="n">is_number</span><span class="p">:</span> -</span><span id="L-261"><a href="#L-261"><span class="linenos"> 261</span></a> <span class="n">l</span> <span class="o">=</span> <span class="nb">float</span><span class="p">(</span><span class="n">l</span><span class="o">.</span><span class="n">name</span><span class="p">)</span> -</span><span id="L-262"><a href="#L-262"><span class="linenos"> 262</span></a> <span class="n">r</span> <span class="o">=</span> <span class="nb">float</span><span class="p">(</span><span class="n">r</span><span class="o">.</span><span class="n">name</span><span class="p">)</span> -</span><span id="L-263"><a href="#L-263"><span class="linenos"> 263</span></a> <span class="k">elif</span> <span class="n">l</span><span class="o">.</span><span class="n">is_string</span> <span class="ow">and</span> <span class="n">r</span><span class="o">.</span><span class="n">is_string</span><span class="p">:</span> -</span><span id="L-264"><a href="#L-264"><span class="linenos"> 264</span></a> <span class="n">l</span> <span class="o">=</span> <span class="n">l</span><span class="o">.</span><span class="n">name</span> -</span><span id="L-265"><a href="#L-265"><span class="linenos"> 265</span></a> <span class="n">r</span> <span class="o">=</span> <span class="n">r</span><span class="o">.</span><span class="n">name</span> -</span><span id="L-266"><a href="#L-266"><span class="linenos"> 266</span></a> <span class="k">else</span><span class="p">:</span> -</span><span id="L-267"><a href="#L-267"><span class="linenos"> 267</span></a> <span class="k">return</span> <span class="kc">None</span> -</span><span id="L-268"><a href="#L-268"><span class="linenos"> 268</span></a> -</span><span id="L-269"><a href="#L-269"><span class="linenos"> 269</span></a> <span class="k">for</span> <span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">av</span><span class="p">),</span> <span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">bv</span><span class="p">)</span> <span class="ow">in</span> <span class="n">itertools</span><span class="o">.</span><span class="n">permutations</span><span class="p">(((</span><span class="n">left</span><span class="p">,</span> <span class="n">l</span><span class="p">),</span> <span class="p">(</span><span class="n">right</span><span class="p">,</span> <span class="n">r</span><span class="p">))):</span> -</span><span id="L-270"><a href="#L-270"><span class="linenos"> 270</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">LT_LTE</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">LT_LTE</span><span class="p">):</span> -</span><span id="L-271"><a href="#L-271"><span class="linenos"> 271</span></a> <span class="k">return</span> <span class="n">left</span> <span class="k">if</span> <span class="p">(</span><span class="n">av</span> <span class="o">></span> <span class="n">bv</span> <span class="k">if</span> <span class="n">or_</span> <span class="k">else</span> <span class="n">av</span> <span class="o"><=</span> <span class="n">bv</span><span class="p">)</span> <span class="k">else</span> <span class="n">right</span> -</span><span id="L-272"><a href="#L-272"><span class="linenos"> 272</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">GT_GTE</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">GT_GTE</span><span class="p">):</span> -</span><span id="L-273"><a href="#L-273"><span class="linenos"> 273</span></a> <span class="k">return</span> <span class="n">left</span> <span class="k">if</span> <span class="p">(</span><span class="n">av</span> <span class="o"><</span> <span class="n">bv</span> <span class="k">if</span> <span class="n">or_</span> <span class="k">else</span> <span class="n">av</span> <span class="o">>=</span> <span class="n">bv</span><span class="p">)</span> <span class="k">else</span> <span class="n">right</span> -</span><span id="L-274"><a href="#L-274"><span class="linenos"> 274</span></a> -</span><span id="L-275"><a href="#L-275"><span class="linenos"> 275</span></a> <span class="c1"># we can't ever shortcut to true because the column could be null</span> -</span><span id="L-276"><a href="#L-276"><span class="linenos"> 276</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">or_</span><span class="p">:</span> -</span><span id="L-277"><a href="#L-277"><span class="linenos"> 277</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">LT</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">GT_GTE</span><span class="p">):</span> -</span><span id="L-278"><a href="#L-278"><span class="linenos"> 278</span></a> <span class="k">if</span> <span class="n">av</span> <span class="o"><=</span> <span class="n">bv</span><span class="p">:</span> -</span><span id="L-279"><a href="#L-279"><span class="linenos"> 279</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> -</span><span id="L-280"><a href="#L-280"><span class="linenos"> 280</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">GT</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">LT_LTE</span><span class="p">):</span> -</span><span id="L-281"><a href="#L-281"><span class="linenos"> 281</span></a> <span class="k">if</span> <span class="n">av</span> <span class="o">>=</span> <span class="n">bv</span><span class="p">:</span> -</span><span id="L-282"><a href="#L-282"><span class="linenos"> 282</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> -</span><span id="L-283"><a href="#L-283"><span class="linenos"> 283</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">EQ</span><span class="p">):</span> -</span><span id="L-284"><a href="#L-284"><span class="linenos"> 284</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">LT</span><span class="p">):</span> -</span><span id="L-285"><a href="#L-285"><span class="linenos"> 285</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> <span class="k">if</span> <span class="n">av</span> <span class="o">>=</span> <span class="n">bv</span> <span class="k">else</span> <span class="n">a</span> -</span><span id="L-286"><a href="#L-286"><span class="linenos"> 286</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">LTE</span><span class="p">):</span> -</span><span id="L-287"><a href="#L-287"><span class="linenos"> 287</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> <span class="k">if</span> <span class="n">av</span> <span class="o">></span> <span class="n">bv</span> <span class="k">else</span> <span class="n">a</span> -</span><span id="L-288"><a href="#L-288"><span class="linenos"> 288</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">GT</span><span class="p">):</span> -</span><span id="L-289"><a href="#L-289"><span class="linenos"> 289</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> <span class="k">if</span> <span class="n">av</span> <span class="o"><=</span> <span class="n">bv</span> <span class="k">else</span> <span class="n">a</span> -</span><span id="L-290"><a href="#L-290"><span class="linenos"> 290</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">GTE</span><span class="p">):</span> -</span><span id="L-291"><a href="#L-291"><span class="linenos"> 291</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> <span class="k">if</span> <span class="n">av</span> <span class="o"><</span> <span class="n">bv</span> <span class="k">else</span> <span class="n">a</span> -</span><span id="L-292"><a href="#L-292"><span class="linenos"> 292</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">NEQ</span><span class="p">):</span> -</span><span id="L-293"><a href="#L-293"><span class="linenos"> 293</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> <span class="k">if</span> <span class="n">av</span> <span class="o">==</span> <span class="n">bv</span> <span class="k">else</span> <span class="n">a</span> -</span><span id="L-294"><a href="#L-294"><span class="linenos"> 294</span></a> <span class="k">return</span> <span class="kc">None</span> -</span><span id="L-295"><a href="#L-295"><span class="linenos"> 295</span></a> +</span><span id="L-236"><a href="#L-236"><span class="linenos"> 236</span></a> +</span><span id="L-237"><a href="#L-237"><span class="linenos"> 237</span></a><span class="k">def</span> <span class="nf">_simplify_comparison</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">left</span><span class="p">,</span> <span class="n">right</span><span class="p">,</span> <span class="n">or_</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span> +</span><span id="L-238"><a href="#L-238"><span class="linenos"> 238</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">left</span><span class="p">,</span> <span class="n">COMPARISONS</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">right</span><span class="p">,</span> <span class="n">COMPARISONS</span><span class="p">):</span> +</span><span id="L-239"><a href="#L-239"><span class="linenos"> 239</span></a> <span class="n">ll</span><span class="p">,</span> <span class="n">lr</span> <span class="o">=</span> <span class="n">left</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">values</span><span class="p">()</span> +</span><span id="L-240"><a href="#L-240"><span class="linenos"> 240</span></a> <span class="n">rl</span><span class="p">,</span> <span class="n">rr</span> <span class="o">=</span> <span class="n">right</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">values</span><span class="p">()</span> +</span><span id="L-241"><a href="#L-241"><span class="linenos"> 241</span></a> +</span><span id="L-242"><a href="#L-242"><span class="linenos"> 242</span></a> <span class="n">largs</span> <span class="o">=</span> <span class="p">{</span><span class="n">ll</span><span class="p">,</span> <span class="n">lr</span><span class="p">}</span> +</span><span id="L-243"><a href="#L-243"><span class="linenos"> 243</span></a> <span class="n">rargs</span> <span class="o">=</span> <span class="p">{</span><span class="n">rl</span><span class="p">,</span> <span class="n">rr</span><span class="p">}</span> +</span><span id="L-244"><a href="#L-244"><span class="linenos"> 244</span></a> +</span><span id="L-245"><a href="#L-245"><span class="linenos"> 245</span></a> <span class="n">matching</span> <span class="o">=</span> <span class="n">largs</span> <span class="o">&</span> <span class="n">rargs</span> +</span><span id="L-246"><a href="#L-246"><span class="linenos"> 246</span></a> <span class="n">columns</span> <span class="o">=</span> <span class="p">{</span><span class="n">m</span> <span class="k">for</span> <span class="n">m</span> <span class="ow">in</span> <span class="n">matching</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">m</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">)}</span> +</span><span id="L-247"><a href="#L-247"><span class="linenos"> 247</span></a> +</span><span id="L-248"><a href="#L-248"><span class="linenos"> 248</span></a> <span class="k">if</span> <span class="n">matching</span> <span class="ow">and</span> <span class="n">columns</span><span class="p">:</span> +</span><span id="L-249"><a href="#L-249"><span class="linenos"> 249</span></a> <span class="k">try</span><span class="p">:</span> +</span><span id="L-250"><a href="#L-250"><span class="linenos"> 250</span></a> <span class="n">l</span> <span class="o">=</span> <span class="n">first</span><span class="p">(</span><span class="n">largs</span> <span class="o">-</span> <span class="n">columns</span><span class="p">)</span> +</span><span id="L-251"><a href="#L-251"><span class="linenos"> 251</span></a> <span class="n">r</span> <span class="o">=</span> <span class="n">first</span><span class="p">(</span><span class="n">rargs</span> <span class="o">-</span> <span class="n">columns</span><span class="p">)</span> +</span><span id="L-252"><a href="#L-252"><span class="linenos"> 252</span></a> <span class="k">except</span> <span class="ne">StopIteration</span><span class="p">:</span> +</span><span id="L-253"><a href="#L-253"><span class="linenos"> 253</span></a> <span class="k">return</span> <span class="n">expression</span> +</span><span id="L-254"><a href="#L-254"><span class="linenos"> 254</span></a> +</span><span id="L-255"><a href="#L-255"><span class="linenos"> 255</span></a> <span class="c1"># make sure the comparison is always of the form x > 1 instead of 1 < x</span> +</span><span id="L-256"><a href="#L-256"><span class="linenos"> 256</span></a> <span class="k">if</span> <span class="n">left</span><span class="o">.</span><span class="vm">__class__</span> <span class="ow">in</span> <span class="n">INVERSE_COMPARISONS</span> <span class="ow">and</span> <span class="n">l</span> <span class="o">==</span> <span class="n">ll</span><span class="p">:</span> +</span><span id="L-257"><a href="#L-257"><span class="linenos"> 257</span></a> <span class="n">left</span> <span class="o">=</span> <span class="n">INVERSE_COMPARISONS</span><span class="p">[</span><span class="n">left</span><span class="o">.</span><span class="vm">__class__</span><span class="p">](</span><span class="n">this</span><span class="o">=</span><span class="n">lr</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="n">ll</span><span class="p">)</span> +</span><span id="L-258"><a href="#L-258"><span class="linenos"> 258</span></a> <span class="k">if</span> <span class="n">right</span><span class="o">.</span><span class="vm">__class__</span> <span class="ow">in</span> <span class="n">INVERSE_COMPARISONS</span> <span class="ow">and</span> <span class="n">r</span> <span class="o">==</span> <span class="n">rl</span><span class="p">:</span> +</span><span id="L-259"><a href="#L-259"><span class="linenos"> 259</span></a> <span class="n">right</span> <span class="o">=</span> <span class="n">INVERSE_COMPARISONS</span><span class="p">[</span><span class="n">right</span><span class="o">.</span><span class="vm">__class__</span><span class="p">](</span><span class="n">this</span><span class="o">=</span><span class="n">rr</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="n">rl</span><span class="p">)</span> +</span><span id="L-260"><a href="#L-260"><span class="linenos"> 260</span></a> +</span><span id="L-261"><a href="#L-261"><span class="linenos"> 261</span></a> <span class="k">if</span> <span class="n">l</span><span class="o">.</span><span class="n">is_number</span> <span class="ow">and</span> <span class="n">r</span><span class="o">.</span><span class="n">is_number</span><span class="p">:</span> +</span><span id="L-262"><a href="#L-262"><span class="linenos"> 262</span></a> <span class="n">l</span> <span class="o">=</span> <span class="nb">float</span><span class="p">(</span><span class="n">l</span><span class="o">.</span><span class="n">name</span><span class="p">)</span> +</span><span id="L-263"><a href="#L-263"><span class="linenos"> 263</span></a> <span class="n">r</span> <span class="o">=</span> <span class="nb">float</span><span class="p">(</span><span class="n">r</span><span class="o">.</span><span class="n">name</span><span class="p">)</span> +</span><span id="L-264"><a href="#L-264"><span class="linenos"> 264</span></a> <span class="k">elif</span> <span class="n">l</span><span class="o">.</span><span class="n">is_string</span> <span class="ow">and</span> <span class="n">r</span><span class="o">.</span><span class="n">is_string</span><span class="p">:</span> +</span><span id="L-265"><a href="#L-265"><span class="linenos"> 265</span></a> <span class="n">l</span> <span class="o">=</span> <span class="n">l</span><span class="o">.</span><span class="n">name</span> +</span><span id="L-266"><a href="#L-266"><span class="linenos"> 266</span></a> <span class="n">r</span> <span class="o">=</span> <span class="n">r</span><span class="o">.</span><span class="n">name</span> +</span><span id="L-267"><a href="#L-267"><span class="linenos"> 267</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="L-268"><a href="#L-268"><span class="linenos"> 268</span></a> <span class="k">return</span> <span class="kc">None</span> +</span><span id="L-269"><a href="#L-269"><span class="linenos"> 269</span></a> +</span><span id="L-270"><a href="#L-270"><span class="linenos"> 270</span></a> <span class="k">for</span> <span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">av</span><span class="p">),</span> <span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">bv</span><span class="p">)</span> <span class="ow">in</span> <span class="n">itertools</span><span class="o">.</span><span class="n">permutations</span><span class="p">(((</span><span class="n">left</span><span class="p">,</span> <span class="n">l</span><span class="p">),</span> <span class="p">(</span><span class="n">right</span><span class="p">,</span> <span class="n">r</span><span class="p">))):</span> +</span><span id="L-271"><a href="#L-271"><span class="linenos"> 271</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">LT_LTE</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">LT_LTE</span><span class="p">):</span> +</span><span id="L-272"><a href="#L-272"><span class="linenos"> 272</span></a> <span class="k">return</span> <span class="n">left</span> <span class="k">if</span> <span class="p">(</span><span class="n">av</span> <span class="o">></span> <span class="n">bv</span> <span class="k">if</span> <span class="n">or_</span> <span class="k">else</span> <span class="n">av</span> <span class="o"><=</span> <span class="n">bv</span><span class="p">)</span> <span class="k">else</span> <span class="n">right</span> +</span><span id="L-273"><a href="#L-273"><span class="linenos"> 273</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">GT_GTE</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">GT_GTE</span><span class="p">):</span> +</span><span id="L-274"><a href="#L-274"><span class="linenos"> 274</span></a> <span class="k">return</span> <span class="n">left</span> <span class="k">if</span> <span class="p">(</span><span class="n">av</span> <span class="o"><</span> <span class="n">bv</span> <span class="k">if</span> <span class="n">or_</span> <span class="k">else</span> <span class="n">av</span> <span class="o">>=</span> <span class="n">bv</span><span class="p">)</span> <span class="k">else</span> <span class="n">right</span> +</span><span id="L-275"><a href="#L-275"><span class="linenos"> 275</span></a> +</span><span id="L-276"><a href="#L-276"><span class="linenos"> 276</span></a> <span class="c1"># we can't ever shortcut to true because the column could be null</span> +</span><span id="L-277"><a href="#L-277"><span class="linenos"> 277</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">or_</span><span class="p">:</span> +</span><span id="L-278"><a href="#L-278"><span class="linenos"> 278</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">LT</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">GT_GTE</span><span class="p">):</span> +</span><span id="L-279"><a href="#L-279"><span class="linenos"> 279</span></a> <span class="k">if</span> <span class="n">av</span> <span class="o"><=</span> <span class="n">bv</span><span class="p">:</span> +</span><span id="L-280"><a href="#L-280"><span class="linenos"> 280</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> +</span><span id="L-281"><a href="#L-281"><span class="linenos"> 281</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">GT</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">LT_LTE</span><span class="p">):</span> +</span><span id="L-282"><a href="#L-282"><span class="linenos"> 282</span></a> <span class="k">if</span> <span class="n">av</span> <span class="o">>=</span> <span class="n">bv</span><span class="p">:</span> +</span><span id="L-283"><a href="#L-283"><span class="linenos"> 283</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> +</span><span id="L-284"><a href="#L-284"><span class="linenos"> 284</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">EQ</span><span class="p">):</span> +</span><span id="L-285"><a href="#L-285"><span class="linenos"> 285</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">LT</span><span class="p">):</span> +</span><span id="L-286"><a href="#L-286"><span class="linenos"> 286</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> <span class="k">if</span> <span class="n">av</span> <span class="o">>=</span> <span class="n">bv</span> <span class="k">else</span> <span class="n">a</span> +</span><span id="L-287"><a href="#L-287"><span class="linenos"> 287</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">LTE</span><span class="p">):</span> +</span><span id="L-288"><a href="#L-288"><span class="linenos"> 288</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> <span class="k">if</span> <span class="n">av</span> <span class="o">></span> <span class="n">bv</span> <span class="k">else</span> <span class="n">a</span> +</span><span id="L-289"><a href="#L-289"><span class="linenos"> 289</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">GT</span><span class="p">):</span> +</span><span id="L-290"><a href="#L-290"><span class="linenos"> 290</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> <span class="k">if</span> <span class="n">av</span> <span class="o"><=</span> <span class="n">bv</span> <span class="k">else</span> <span class="n">a</span> +</span><span id="L-291"><a href="#L-291"><span class="linenos"> 291</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">GTE</span><span class="p">):</span> +</span><span id="L-292"><a href="#L-292"><span class="linenos"> 292</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> <span class="k">if</span> <span class="n">av</span> <span class="o"><</span> <span class="n">bv</span> <span class="k">else</span> <span class="n">a</span> +</span><span id="L-293"><a href="#L-293"><span class="linenos"> 293</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">NEQ</span><span class="p">):</span> +</span><span id="L-294"><a href="#L-294"><span class="linenos"> 294</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> <span class="k">if</span> <span class="n">av</span> <span class="o">==</span> <span class="n">bv</span> <span class="k">else</span> <span class="n">a</span> +</span><span id="L-295"><a href="#L-295"><span class="linenos"> 295</span></a> <span class="k">return</span> <span class="kc">None</span> </span><span id="L-296"><a href="#L-296"><span class="linenos"> 296</span></a> -</span><span id="L-297"><a href="#L-297"><span class="linenos"> 297</span></a><span class="k">def</span> <span class="nf">remove_complements</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span> -</span><span id="L-298"><a href="#L-298"><span class="linenos"> 298</span></a><span class="w"> </span><span class="sd">"""</span> -</span><span id="L-299"><a href="#L-299"><span class="linenos"> 299</span></a><span class="sd"> Removing complements.</span> -</span><span id="L-300"><a href="#L-300"><span class="linenos"> 300</span></a> -</span><span id="L-301"><a href="#L-301"><span class="linenos"> 301</span></a><span class="sd"> A AND NOT A -> FALSE</span> -</span><span id="L-302"><a href="#L-302"><span class="linenos"> 302</span></a><span class="sd"> A OR NOT A -> TRUE</span> -</span><span id="L-303"><a href="#L-303"><span class="linenos"> 303</span></a><span class="sd"> """</span> -</span><span id="L-304"><a href="#L-304"><span class="linenos"> 304</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Connector</span><span class="p">)</span> <span class="ow">and</span> <span class="p">(</span><span class="n">root</span> <span class="ow">or</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">same_parent</span><span class="p">):</span> -</span><span id="L-305"><a href="#L-305"><span class="linenos"> 305</span></a> <span class="n">complement</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">)</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> -</span><span id="L-306"><a href="#L-306"><span class="linenos"> 306</span></a> -</span><span id="L-307"><a href="#L-307"><span class="linenos"> 307</span></a> <span class="k">for</span> <span class="n">a</span><span class="p">,</span> <span class="n">b</span> <span class="ow">in</span> <span class="n">itertools</span><span class="o">.</span><span class="n">permutations</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">flatten</span><span class="p">(),</span> <span class="mi">2</span><span class="p">):</span> -</span><span id="L-308"><a href="#L-308"><span class="linenos"> 308</span></a> <span class="k">if</span> <span class="n">is_complement</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">):</span> -</span><span id="L-309"><a href="#L-309"><span class="linenos"> 309</span></a> <span class="k">return</span> <span class="n">complement</span> -</span><span id="L-310"><a href="#L-310"><span class="linenos"> 310</span></a> <span class="k">return</span> <span class="n">expression</span> -</span><span id="L-311"><a href="#L-311"><span class="linenos"> 311</span></a> +</span><span id="L-297"><a href="#L-297"><span class="linenos"> 297</span></a> +</span><span id="L-298"><a href="#L-298"><span class="linenos"> 298</span></a><span class="k">def</span> <span class="nf">remove_complements</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span> +</span><span id="L-299"><a href="#L-299"><span class="linenos"> 299</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="L-300"><a href="#L-300"><span class="linenos"> 300</span></a><span class="sd"> Removing complements.</span> +</span><span id="L-301"><a href="#L-301"><span class="linenos"> 301</span></a> +</span><span id="L-302"><a href="#L-302"><span class="linenos"> 302</span></a><span class="sd"> A AND NOT A -> FALSE</span> +</span><span id="L-303"><a href="#L-303"><span class="linenos"> 303</span></a><span class="sd"> A OR NOT A -> TRUE</span> +</span><span id="L-304"><a href="#L-304"><span class="linenos"> 304</span></a><span class="sd"> """</span> +</span><span id="L-305"><a href="#L-305"><span class="linenos"> 305</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Connector</span><span class="p">)</span> <span class="ow">and</span> <span class="p">(</span><span class="n">root</span> <span class="ow">or</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">same_parent</span><span class="p">):</span> +</span><span id="L-306"><a href="#L-306"><span class="linenos"> 306</span></a> <span class="n">complement</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">)</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> +</span><span id="L-307"><a href="#L-307"><span class="linenos"> 307</span></a> +</span><span id="L-308"><a href="#L-308"><span class="linenos"> 308</span></a> <span class="k">for</span> <span class="n">a</span><span class="p">,</span> <span class="n">b</span> <span class="ow">in</span> <span class="n">itertools</span><span class="o">.</span><span class="n">permutations</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">flatten</span><span class="p">(),</span> <span class="mi">2</span><span class="p">):</span> +</span><span id="L-309"><a href="#L-309"><span class="linenos"> 309</span></a> <span class="k">if</span> <span class="n">is_complement</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">):</span> +</span><span id="L-310"><a href="#L-310"><span class="linenos"> 310</span></a> <span class="k">return</span> <span class="n">complement</span> +</span><span id="L-311"><a href="#L-311"><span class="linenos"> 311</span></a> <span class="k">return</span> <span class="n">expression</span> </span><span id="L-312"><a href="#L-312"><span class="linenos"> 312</span></a> -</span><span id="L-313"><a href="#L-313"><span class="linenos"> 313</span></a><span class="k">def</span> <span class="nf">uniq_sort</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">generate</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span> -</span><span id="L-314"><a href="#L-314"><span class="linenos"> 314</span></a><span class="w"> </span><span class="sd">"""</span> -</span><span id="L-315"><a href="#L-315"><span class="linenos"> 315</span></a><span class="sd"> Uniq and sort a connector.</span> -</span><span id="L-316"><a href="#L-316"><span class="linenos"> 316</span></a> -</span><span id="L-317"><a href="#L-317"><span class="linenos"> 317</span></a><span class="sd"> C AND A AND B AND B -> A AND B AND C</span> -</span><span id="L-318"><a href="#L-318"><span class="linenos"> 318</span></a><span class="sd"> """</span> -</span><span id="L-319"><a href="#L-319"><span class="linenos"> 319</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Connector</span><span class="p">)</span> <span class="ow">and</span> <span class="p">(</span><span class="n">root</span> <span class="ow">or</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">same_parent</span><span class="p">):</span> -</span><span id="L-320"><a href="#L-320"><span class="linenos"> 320</span></a> <span class="n">result_func</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">and_</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">)</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">or_</span> -</span><span id="L-321"><a href="#L-321"><span class="linenos"> 321</span></a> <span class="n">flattened</span> <span class="o">=</span> <span class="nb">tuple</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">flatten</span><span class="p">())</span> -</span><span id="L-322"><a href="#L-322"><span class="linenos"> 322</span></a> <span class="n">deduped</span> <span class="o">=</span> <span class="p">{</span><span class="n">generate</span><span class="p">(</span><span class="n">e</span><span class="p">):</span> <span class="n">e</span> <span class="k">for</span> <span class="n">e</span> <span class="ow">in</span> <span class="n">flattened</span><span class="p">}</span> -</span><span id="L-323"><a href="#L-323"><span class="linenos"> 323</span></a> <span class="n">arr</span> <span class="o">=</span> <span class="nb">tuple</span><span class="p">(</span><span class="n">deduped</span><span class="o">.</span><span class="n">items</span><span class="p">())</span> -</span><span id="L-324"><a href="#L-324"><span class="linenos"> 324</span></a> -</span><span id="L-325"><a href="#L-325"><span class="linenos"> 325</span></a> <span class="c1"># check if the operands are already sorted, if not sort them</span> -</span><span id="L-326"><a href="#L-326"><span class="linenos"> 326</span></a> <span class="c1"># A AND C AND B -> A AND B AND C</span> -</span><span id="L-327"><a href="#L-327"><span class="linenos"> 327</span></a> <span class="k">for</span> <span class="n">i</span><span class="p">,</span> <span class="p">(</span><span class="n">sql</span><span class="p">,</span> <span class="n">e</span><span class="p">)</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="n">arr</span><span class="p">[</span><span class="mi">1</span><span class="p">:]):</span> -</span><span id="L-328"><a href="#L-328"><span class="linenos"> 328</span></a> <span class="k">if</span> <span class="n">sql</span> <span class="o"><</span> <span class="n">arr</span><span class="p">[</span><span class="n">i</span><span class="p">][</span><span class="mi">0</span><span class="p">]:</span> -</span><span id="L-329"><a href="#L-329"><span class="linenos"> 329</span></a> <span class="n">expression</span> <span class="o">=</span> <span class="n">result_func</span><span class="p">(</span><span class="o">*</span><span class="p">(</span><span class="n">e</span> <span class="k">for</span> <span class="n">_</span><span class="p">,</span> <span class="n">e</span> <span class="ow">in</span> <span class="nb">sorted</span><span class="p">(</span><span class="n">arr</span><span class="p">)),</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span> -</span><span id="L-330"><a href="#L-330"><span class="linenos"> 330</span></a> <span class="k">break</span> -</span><span id="L-331"><a href="#L-331"><span class="linenos"> 331</span></a> <span class="k">else</span><span class="p">:</span> -</span><span id="L-332"><a href="#L-332"><span class="linenos"> 332</span></a> <span class="c1"># we didn't have to sort but maybe we need to dedup</span> -</span><span id="L-333"><a href="#L-333"><span class="linenos"> 333</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">deduped</span><span class="p">)</span> <span class="o"><</span> <span class="nb">len</span><span class="p">(</span><span class="n">flattened</span><span class="p">):</span> -</span><span id="L-334"><a href="#L-334"><span class="linenos"> 334</span></a> <span class="n">expression</span> <span class="o">=</span> <span class="n">result_func</span><span class="p">(</span><span class="o">*</span><span class="n">deduped</span><span class="o">.</span><span class="n">values</span><span class="p">(),</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span> -</span><span id="L-335"><a href="#L-335"><span class="linenos"> 335</span></a> -</span><span id="L-336"><a href="#L-336"><span class="linenos"> 336</span></a> <span class="k">return</span> <span class="n">expression</span> -</span><span id="L-337"><a href="#L-337"><span class="linenos"> 337</span></a> +</span><span id="L-313"><a href="#L-313"><span class="linenos"> 313</span></a> +</span><span id="L-314"><a href="#L-314"><span class="linenos"> 314</span></a><span class="k">def</span> <span class="nf">uniq_sort</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">generate</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span> +</span><span id="L-315"><a href="#L-315"><span class="linenos"> 315</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="L-316"><a href="#L-316"><span class="linenos"> 316</span></a><span class="sd"> Uniq and sort a connector.</span> +</span><span id="L-317"><a href="#L-317"><span class="linenos"> 317</span></a> +</span><span id="L-318"><a href="#L-318"><span class="linenos"> 318</span></a><span class="sd"> C AND A AND B AND B -> A AND B AND C</span> +</span><span id="L-319"><a href="#L-319"><span class="linenos"> 319</span></a><span class="sd"> """</span> +</span><span id="L-320"><a href="#L-320"><span class="linenos"> 320</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Connector</span><span class="p">)</span> <span class="ow">and</span> <span class="p">(</span><span class="n">root</span> <span class="ow">or</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">same_parent</span><span class="p">):</span> +</span><span id="L-321"><a href="#L-321"><span class="linenos"> 321</span></a> <span class="n">result_func</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">and_</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">)</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">or_</span> +</span><span id="L-322"><a href="#L-322"><span class="linenos"> 322</span></a> <span class="n">flattened</span> <span class="o">=</span> <span class="nb">tuple</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">flatten</span><span class="p">())</span> +</span><span id="L-323"><a href="#L-323"><span class="linenos"> 323</span></a> <span class="n">deduped</span> <span class="o">=</span> <span class="p">{</span><span class="n">generate</span><span class="p">(</span><span class="n">e</span><span class="p">):</span> <span class="n">e</span> <span class="k">for</span> <span class="n">e</span> <span class="ow">in</span> <span class="n">flattened</span><span class="p">}</span> +</span><span id="L-324"><a href="#L-324"><span class="linenos"> 324</span></a> <span class="n">arr</span> <span class="o">=</span> <span class="nb">tuple</span><span class="p">(</span><span class="n">deduped</span><span class="o">.</span><span class="n">items</span><span class="p">())</span> +</span><span id="L-325"><a href="#L-325"><span class="linenos"> 325</span></a> +</span><span id="L-326"><a href="#L-326"><span class="linenos"> 326</span></a> <span class="c1"># check if the operands are already sorted, if not sort them</span> +</span><span id="L-327"><a href="#L-327"><span class="linenos"> 327</span></a> <span class="c1"># A AND C AND B -> A AND B AND C</span> +</span><span id="L-328"><a href="#L-328"><span class="linenos"> 328</span></a> <span class="k">for</span> <span class="n">i</span><span class="p">,</span> <span class="p">(</span><span class="n">sql</span><span class="p">,</span> <span class="n">e</span><span class="p">)</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="n">arr</span><span class="p">[</span><span class="mi">1</span><span class="p">:]):</span> +</span><span id="L-329"><a href="#L-329"><span class="linenos"> 329</span></a> <span class="k">if</span> <span class="n">sql</span> <span class="o"><</span> <span class="n">arr</span><span class="p">[</span><span class="n">i</span><span class="p">][</span><span class="mi">0</span><span class="p">]:</span> +</span><span id="L-330"><a href="#L-330"><span class="linenos"> 330</span></a> <span class="n">expression</span> <span class="o">=</span> <span class="n">result_func</span><span class="p">(</span><span class="o">*</span><span class="p">(</span><span class="n">e</span> <span class="k">for</span> <span class="n">_</span><span class="p">,</span> <span class="n">e</span> <span class="ow">in</span> <span class="nb">sorted</span><span class="p">(</span><span class="n">arr</span><span class="p">)),</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span> +</span><span id="L-331"><a href="#L-331"><span class="linenos"> 331</span></a> <span class="k">break</span> +</span><span id="L-332"><a href="#L-332"><span class="linenos"> 332</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="L-333"><a href="#L-333"><span class="linenos"> 333</span></a> <span class="c1"># we didn't have to sort but maybe we need to dedup</span> +</span><span id="L-334"><a href="#L-334"><span class="linenos"> 334</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">deduped</span><span class="p">)</span> <span class="o"><</span> <span class="nb">len</span><span class="p">(</span><span class="n">flattened</span><span class="p">):</span> +</span><span id="L-335"><a href="#L-335"><span class="linenos"> 335</span></a> <span class="n">expression</span> <span class="o">=</span> <span class="n">result_func</span><span class="p">(</span><span class="o">*</span><span class="n">deduped</span><span class="o">.</span><span class="n">values</span><span class="p">(),</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span> +</span><span id="L-336"><a href="#L-336"><span class="linenos"> 336</span></a> +</span><span id="L-337"><a href="#L-337"><span class="linenos"> 337</span></a> <span class="k">return</span> <span class="n">expression</span> </span><span id="L-338"><a href="#L-338"><span class="linenos"> 338</span></a> -</span><span id="L-339"><a href="#L-339"><span class="linenos"> 339</span></a><span class="k">def</span> <span class="nf">absorb_and_eliminate</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span> -</span><span id="L-340"><a href="#L-340"><span class="linenos"> 340</span></a><span class="w"> </span><span class="sd">"""</span> -</span><span id="L-341"><a href="#L-341"><span class="linenos"> 341</span></a><span class="sd"> absorption:</span> -</span><span id="L-342"><a href="#L-342"><span class="linenos"> 342</span></a><span class="sd"> A AND (A OR B) -> A</span> -</span><span id="L-343"><a href="#L-343"><span class="linenos"> 343</span></a><span class="sd"> A OR (A AND B) -> A</span> -</span><span id="L-344"><a href="#L-344"><span class="linenos"> 344</span></a><span class="sd"> A AND (NOT A OR B) -> A AND B</span> -</span><span id="L-345"><a href="#L-345"><span class="linenos"> 345</span></a><span class="sd"> A OR (NOT A AND B) -> A OR B</span> -</span><span id="L-346"><a href="#L-346"><span class="linenos"> 346</span></a><span class="sd"> elimination:</span> -</span><span id="L-347"><a href="#L-347"><span class="linenos"> 347</span></a><span class="sd"> (A AND B) OR (A AND NOT B) -> A</span> -</span><span id="L-348"><a href="#L-348"><span class="linenos"> 348</span></a><span class="sd"> (A OR B) AND (A OR NOT B) -> A</span> -</span><span id="L-349"><a href="#L-349"><span class="linenos"> 349</span></a><span class="sd"> """</span> -</span><span id="L-350"><a href="#L-350"><span class="linenos"> 350</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Connector</span><span class="p">)</span> <span class="ow">and</span> <span class="p">(</span><span class="n">root</span> <span class="ow">or</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">same_parent</span><span class="p">):</span> -</span><span id="L-351"><a href="#L-351"><span class="linenos"> 351</span></a> <span class="n">kind</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Or</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">)</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span> -</span><span id="L-352"><a href="#L-352"><span class="linenos"> 352</span></a> -</span><span id="L-353"><a href="#L-353"><span class="linenos"> 353</span></a> <span class="k">for</span> <span class="n">a</span><span class="p">,</span> <span class="n">b</span> <span class="ow">in</span> <span class="n">itertools</span><span class="o">.</span><span class="n">permutations</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">flatten</span><span class="p">(),</span> <span class="mi">2</span><span class="p">):</span> -</span><span id="L-354"><a href="#L-354"><span class="linenos"> 354</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">kind</span><span class="p">):</span> -</span><span id="L-355"><a href="#L-355"><span class="linenos"> 355</span></a> <span class="n">aa</span><span class="p">,</span> <span class="n">ab</span> <span class="o">=</span> <span class="n">a</span><span class="o">.</span><span class="n">unnest_operands</span><span class="p">()</span> -</span><span id="L-356"><a href="#L-356"><span class="linenos"> 356</span></a> -</span><span id="L-357"><a href="#L-357"><span class="linenos"> 357</span></a> <span class="c1"># absorb</span> -</span><span id="L-358"><a href="#L-358"><span class="linenos"> 358</span></a> <span class="k">if</span> <span class="n">is_complement</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">aa</span><span class="p">):</span> -</span><span id="L-359"><a href="#L-359"><span class="linenos"> 359</span></a> <span class="n">aa</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> <span class="k">if</span> <span class="n">kind</span> <span class="o">==</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">())</span> -</span><span id="L-360"><a href="#L-360"><span class="linenos"> 360</span></a> <span class="k">elif</span> <span class="n">is_complement</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">ab</span><span class="p">):</span> -</span><span id="L-361"><a href="#L-361"><span class="linenos"> 361</span></a> <span class="n">ab</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> <span class="k">if</span> <span class="n">kind</span> <span class="o">==</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">())</span> -</span><span id="L-362"><a href="#L-362"><span class="linenos"> 362</span></a> <span class="k">elif</span> <span class="p">(</span><span class="nb">set</span><span class="p">(</span><span class="n">b</span><span class="o">.</span><span class="n">flatten</span><span class="p">())</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">kind</span><span class="p">)</span> <span class="k">else</span> <span class="p">{</span><span class="n">b</span><span class="p">})</span> <span class="o"><</span> <span class="nb">set</span><span class="p">(</span><span class="n">a</span><span class="o">.</span><span class="n">flatten</span><span class="p">()):</span> -</span><span id="L-363"><a href="#L-363"><span class="linenos"> 363</span></a> <span class="n">a</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> <span class="k">if</span> <span class="n">kind</span> <span class="o">==</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">())</span> -</span><span id="L-364"><a href="#L-364"><span class="linenos"> 364</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">kind</span><span class="p">):</span> -</span><span id="L-365"><a href="#L-365"><span class="linenos"> 365</span></a> <span class="c1"># eliminate</span> -</span><span id="L-366"><a href="#L-366"><span class="linenos"> 366</span></a> <span class="n">rhs</span> <span class="o">=</span> <span class="n">b</span><span class="o">.</span><span class="n">unnest_operands</span><span class="p">()</span> -</span><span id="L-367"><a href="#L-367"><span class="linenos"> 367</span></a> <span class="n">ba</span><span class="p">,</span> <span class="n">bb</span> <span class="o">=</span> <span class="n">rhs</span> -</span><span id="L-368"><a href="#L-368"><span class="linenos"> 368</span></a> -</span><span id="L-369"><a href="#L-369"><span class="linenos"> 369</span></a> <span class="k">if</span> <span class="n">aa</span> <span class="ow">in</span> <span class="n">rhs</span> <span class="ow">and</span> <span class="p">(</span><span class="n">is_complement</span><span class="p">(</span><span class="n">ab</span><span class="p">,</span> <span class="n">ba</span><span class="p">)</span> <span class="ow">or</span> <span class="n">is_complement</span><span class="p">(</span><span class="n">ab</span><span class="p">,</span> <span class="n">bb</span><span class="p">)):</span> -</span><span id="L-370"><a href="#L-370"><span class="linenos"> 370</span></a> <span class="n">a</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">aa</span><span class="p">)</span> -</span><span id="L-371"><a href="#L-371"><span class="linenos"> 371</span></a> <span class="n">b</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">aa</span><span class="p">)</span> -</span><span id="L-372"><a href="#L-372"><span class="linenos"> 372</span></a> <span class="k">elif</span> <span class="n">ab</span> <span class="ow">in</span> <span class="n">rhs</span> <span class="ow">and</span> <span class="p">(</span><span class="n">is_complement</span><span class="p">(</span><span class="n">aa</span><span class="p">,</span> <span class="n">ba</span><span class="p">)</span> <span class="ow">or</span> <span class="n">is_complement</span><span class="p">(</span><span class="n">aa</span><span class="p">,</span> <span class="n">bb</span><span class="p">)):</span> -</span><span id="L-373"><a href="#L-373"><span class="linenos"> 373</span></a> <span class="n">a</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">ab</span><span class="p">)</span> -</span><span id="L-374"><a href="#L-374"><span class="linenos"> 374</span></a> <span class="n">b</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">ab</span><span class="p">)</span> -</span><span id="L-375"><a href="#L-375"><span class="linenos"> 375</span></a> -</span><span id="L-376"><a href="#L-376"><span class="linenos"> 376</span></a> <span class="k">return</span> <span class="n">expression</span> -</span><span id="L-377"><a href="#L-377"><span class="linenos"> 377</span></a> +</span><span id="L-339"><a href="#L-339"><span class="linenos"> 339</span></a> +</span><span id="L-340"><a href="#L-340"><span class="linenos"> 340</span></a><span class="k">def</span> <span class="nf">absorb_and_eliminate</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span> +</span><span id="L-341"><a href="#L-341"><span class="linenos"> 341</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="L-342"><a href="#L-342"><span class="linenos"> 342</span></a><span class="sd"> absorption:</span> +</span><span id="L-343"><a href="#L-343"><span class="linenos"> 343</span></a><span class="sd"> A AND (A OR B) -> A</span> +</span><span id="L-344"><a href="#L-344"><span class="linenos"> 344</span></a><span class="sd"> A OR (A AND B) -> A</span> +</span><span id="L-345"><a href="#L-345"><span class="linenos"> 345</span></a><span class="sd"> A AND (NOT A OR B) -> A AND B</span> +</span><span id="L-346"><a href="#L-346"><span class="linenos"> 346</span></a><span class="sd"> A OR (NOT A AND B) -> A OR B</span> +</span><span id="L-347"><a href="#L-347"><span class="linenos"> 347</span></a><span class="sd"> elimination:</span> +</span><span id="L-348"><a href="#L-348"><span class="linenos"> 348</span></a><span class="sd"> (A AND B) OR (A AND NOT B) -> A</span> +</span><span id="L-349"><a href="#L-349"><span class="linenos"> 349</span></a><span class="sd"> (A OR B) AND (A OR NOT B) -> A</span> +</span><span id="L-350"><a href="#L-350"><span class="linenos"> 350</span></a><span class="sd"> """</span> +</span><span id="L-351"><a href="#L-351"><span class="linenos"> 351</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Connector</span><span class="p">)</span> <span class="ow">and</span> <span class="p">(</span><span class="n">root</span> <span class="ow">or</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">same_parent</span><span class="p">):</span> +</span><span id="L-352"><a href="#L-352"><span class="linenos"> 352</span></a> <span class="n">kind</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Or</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">)</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span> +</span><span id="L-353"><a href="#L-353"><span class="linenos"> 353</span></a> +</span><span id="L-354"><a href="#L-354"><span class="linenos"> 354</span></a> <span class="k">for</span> <span class="n">a</span><span class="p">,</span> <span class="n">b</span> <span class="ow">in</span> <span class="n">itertools</span><span class="o">.</span><span class="n">permutations</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">flatten</span><span class="p">(),</span> <span class="mi">2</span><span class="p">):</span> +</span><span id="L-355"><a href="#L-355"><span class="linenos"> 355</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">kind</span><span class="p">):</span> +</span><span id="L-356"><a href="#L-356"><span class="linenos"> 356</span></a> <span class="n">aa</span><span class="p">,</span> <span class="n">ab</span> <span class="o">=</span> <span class="n">a</span><span class="o">.</span><span class="n">unnest_operands</span><span class="p">()</span> +</span><span id="L-357"><a href="#L-357"><span class="linenos"> 357</span></a> +</span><span id="L-358"><a href="#L-358"><span class="linenos"> 358</span></a> <span class="c1"># absorb</span> +</span><span id="L-359"><a href="#L-359"><span class="linenos"> 359</span></a> <span class="k">if</span> <span class="n">is_complement</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">aa</span><span class="p">):</span> +</span><span id="L-360"><a href="#L-360"><span class="linenos"> 360</span></a> <span class="n">aa</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> <span class="k">if</span> <span class="n">kind</span> <span class="o">==</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">())</span> +</span><span id="L-361"><a href="#L-361"><span class="linenos"> 361</span></a> <span class="k">elif</span> <span class="n">is_complement</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">ab</span><span class="p">):</span> +</span><span id="L-362"><a href="#L-362"><span class="linenos"> 362</span></a> <span class="n">ab</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> <span class="k">if</span> <span class="n">kind</span> <span class="o">==</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">())</span> +</span><span id="L-363"><a href="#L-363"><span class="linenos"> 363</span></a> <span class="k">elif</span> <span class="p">(</span><span class="nb">set</span><span class="p">(</span><span class="n">b</span><span class="o">.</span><span class="n">flatten</span><span class="p">())</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">kind</span><span class="p">)</span> <span class="k">else</span> <span class="p">{</span><span class="n">b</span><span class="p">})</span> <span class="o"><</span> <span class="nb">set</span><span class="p">(</span><span class="n">a</span><span class="o">.</span><span class="n">flatten</span><span class="p">()):</span> +</span><span id="L-364"><a href="#L-364"><span class="linenos"> 364</span></a> <span class="n">a</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> <span class="k">if</span> <span class="n">kind</span> <span class="o">==</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">())</span> +</span><span id="L-365"><a href="#L-365"><span class="linenos"> 365</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">kind</span><span class="p">):</span> +</span><span id="L-366"><a href="#L-366"><span class="linenos"> 366</span></a> <span class="c1"># eliminate</span> +</span><span id="L-367"><a href="#L-367"><span class="linenos"> 367</span></a> <span class="n">rhs</span> <span class="o">=</span> <span class="n">b</span><span class="o">.</span><span class="n">unnest_operands</span><span class="p">()</span> +</span><span id="L-368"><a href="#L-368"><span class="linenos"> 368</span></a> <span class="n">ba</span><span class="p">,</span> <span class="n">bb</span> <span class="o">=</span> <span class="n">rhs</span> +</span><span id="L-369"><a href="#L-369"><span class="linenos"> 369</span></a> +</span><span id="L-370"><a href="#L-370"><span class="linenos"> 370</span></a> <span class="k">if</span> <span class="n">aa</span> <span class="ow">in</span> <span class="n">rhs</span> <span class="ow">and</span> <span class="p">(</span><span class="n">is_complement</span><span class="p">(</span><span class="n">ab</span><span class="p">,</span> <span class="n">ba</span><span class="p">)</span> <span class="ow">or</span> <span class="n">is_complement</span><span class="p">(</span><span class="n">ab</span><span class="p">,</span> <span class="n">bb</span><span class="p">)):</span> +</span><span id="L-371"><a href="#L-371"><span class="linenos"> 371</span></a> <span class="n">a</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">aa</span><span class="p">)</span> +</span><span id="L-372"><a href="#L-372"><span class="linenos"> 372</span></a> <span class="n">b</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">aa</span><span class="p">)</span> +</span><span id="L-373"><a href="#L-373"><span class="linenos"> 373</span></a> <span class="k">elif</span> <span class="n">ab</span> <span class="ow">in</span> <span class="n">rhs</span> <span class="ow">and</span> <span class="p">(</span><span class="n">is_complement</span><span class="p">(</span><span class="n">aa</span><span class="p">,</span> <span class="n">ba</span><span class="p">)</span> <span class="ow">or</span> <span class="n">is_complement</span><span class="p">(</span><span class="n">aa</span><span class="p">,</span> <span class="n">bb</span><span class="p">)):</span> +</span><span id="L-374"><a href="#L-374"><span class="linenos"> 374</span></a> <span class="n">a</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">ab</span><span class="p">)</span> +</span><span id="L-375"><a href="#L-375"><span class="linenos"> 375</span></a> <span class="n">b</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">ab</span><span class="p">)</span> +</span><span id="L-376"><a href="#L-376"><span class="linenos"> 376</span></a> +</span><span id="L-377"><a href="#L-377"><span class="linenos"> 377</span></a> <span class="k">return</span> <span class="n">expression</span> </span><span id="L-378"><a href="#L-378"><span class="linenos"> 378</span></a> -</span><span id="L-379"><a href="#L-379"><span class="linenos"> 379</span></a><span class="k">def</span> <span class="nf">propagate_constants</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span> -</span><span id="L-380"><a href="#L-380"><span class="linenos"> 380</span></a><span class="w"> </span><span class="sd">"""</span> -</span><span id="L-381"><a href="#L-381"><span class="linenos"> 381</span></a><span class="sd"> Propagate constants for conjunctions in DNF:</span> -</span><span id="L-382"><a href="#L-382"><span class="linenos"> 382</span></a> -</span><span id="L-383"><a href="#L-383"><span class="linenos"> 383</span></a><span class="sd"> SELECT * FROM t WHERE a = b AND b = 5 becomes</span> -</span><span id="L-384"><a href="#L-384"><span class="linenos"> 384</span></a><span class="sd"> SELECT * FROM t WHERE a = 5 AND b = 5</span> -</span><span id="L-385"><a href="#L-385"><span class="linenos"> 385</span></a> -</span><span id="L-386"><a href="#L-386"><span class="linenos"> 386</span></a><span class="sd"> Reference: https://www.sqlite.org/optoverview.html</span> -</span><span id="L-387"><a href="#L-387"><span class="linenos"> 387</span></a><span class="sd"> """</span> -</span><span id="L-388"><a href="#L-388"><span class="linenos"> 388</span></a> -</span><span id="L-389"><a href="#L-389"><span class="linenos"> 389</span></a> <span class="k">if</span> <span class="p">(</span> -</span><span id="L-390"><a href="#L-390"><span class="linenos"> 390</span></a> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">)</span> -</span><span id="L-391"><a href="#L-391"><span class="linenos"> 391</span></a> <span class="ow">and</span> <span class="p">(</span><span class="n">root</span> <span class="ow">or</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">same_parent</span><span class="p">)</span> -</span><span id="L-392"><a href="#L-392"><span class="linenos"> 392</span></a> <span class="ow">and</span> <span class="n">sqlglot</span><span class="o">.</span><span class="n">optimizer</span><span class="o">.</span><span class="n">normalize</span><span class="o">.</span><span class="n">normalized</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">dnf</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span> -</span><span id="L-393"><a href="#L-393"><span class="linenos"> 393</span></a> <span class="p">):</span> -</span><span id="L-394"><a href="#L-394"><span class="linenos"> 394</span></a> <span class="n">constant_mapping</span> <span class="o">=</span> <span class="p">{}</span> -</span><span id="L-395"><a href="#L-395"><span class="linenos"> 395</span></a> <span class="k">for</span> <span class="n">eq</span> <span class="ow">in</span> <span class="n">find_all_in_scope</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">EQ</span><span class="p">):</span> -</span><span id="L-396"><a href="#L-396"><span class="linenos"> 396</span></a> <span class="n">l</span><span class="p">,</span> <span class="n">r</span> <span class="o">=</span> <span class="n">eq</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="n">eq</span><span class="o">.</span><span class="n">right</span> -</span><span id="L-397"><a href="#L-397"><span class="linenos"> 397</span></a> -</span><span id="L-398"><a href="#L-398"><span class="linenos"> 398</span></a> <span class="c1"># TODO: create a helper that can be used to detect nested literal expressions such</span> -</span><span id="L-399"><a href="#L-399"><span class="linenos"> 399</span></a> <span class="c1"># as CAST(123456 AS BIGINT), since we usually want to treat those as literals too</span> -</span><span id="L-400"><a href="#L-400"><span class="linenos"> 400</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">l</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">r</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="p">):</span> -</span><span id="L-401"><a href="#L-401"><span class="linenos"> 401</span></a> <span class="k">pass</span> -</span><span id="L-402"><a href="#L-402"><span class="linenos"> 402</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">r</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">l</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="p">):</span> -</span><span id="L-403"><a href="#L-403"><span class="linenos"> 403</span></a> <span class="n">l</span><span class="p">,</span> <span class="n">r</span> <span class="o">=</span> <span class="n">r</span><span class="p">,</span> <span class="n">l</span> -</span><span id="L-404"><a href="#L-404"><span class="linenos"> 404</span></a> <span class="k">else</span><span class="p">:</span> -</span><span id="L-405"><a href="#L-405"><span class="linenos"> 405</span></a> <span class="k">continue</span> -</span><span id="L-406"><a href="#L-406"><span class="linenos"> 406</span></a> -</span><span id="L-407"><a href="#L-407"><span class="linenos"> 407</span></a> <span class="n">constant_mapping</span><span class="p">[</span><span class="n">l</span><span class="p">]</span> <span class="o">=</span> <span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">l</span><span class="p">),</span> <span class="n">r</span><span class="p">)</span> +</span><span id="L-379"><a href="#L-379"><span class="linenos"> 379</span></a> +</span><span id="L-380"><a href="#L-380"><span class="linenos"> 380</span></a><span class="k">def</span> <span class="nf">propagate_constants</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span> +</span><span id="L-381"><a href="#L-381"><span class="linenos"> 381</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="L-382"><a href="#L-382"><span class="linenos"> 382</span></a><span class="sd"> Propagate constants for conjunctions in DNF:</span> +</span><span id="L-383"><a href="#L-383"><span class="linenos"> 383</span></a> +</span><span id="L-384"><a href="#L-384"><span class="linenos"> 384</span></a><span class="sd"> SELECT * FROM t WHERE a = b AND b = 5 becomes</span> +</span><span id="L-385"><a href="#L-385"><span class="linenos"> 385</span></a><span class="sd"> SELECT * FROM t WHERE a = 5 AND b = 5</span> +</span><span id="L-386"><a href="#L-386"><span class="linenos"> 386</span></a> +</span><span id="L-387"><a href="#L-387"><span class="linenos"> 387</span></a><span class="sd"> Reference: https://www.sqlite.org/optoverview.html</span> +</span><span id="L-388"><a href="#L-388"><span class="linenos"> 388</span></a><span class="sd"> """</span> +</span><span id="L-389"><a href="#L-389"><span class="linenos"> 389</span></a> +</span><span id="L-390"><a href="#L-390"><span class="linenos"> 390</span></a> <span class="k">if</span> <span class="p">(</span> +</span><span id="L-391"><a href="#L-391"><span class="linenos"> 391</span></a> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">)</span> +</span><span id="L-392"><a href="#L-392"><span class="linenos"> 392</span></a> <span class="ow">and</span> <span class="p">(</span><span class="n">root</span> <span class="ow">or</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">same_parent</span><span class="p">)</span> +</span><span id="L-393"><a href="#L-393"><span class="linenos"> 393</span></a> <span class="ow">and</span> <span class="n">sqlglot</span><span class="o">.</span><span class="n">optimizer</span><span class="o">.</span><span class="n">normalize</span><span class="o">.</span><span class="n">normalized</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">dnf</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span> +</span><span id="L-394"><a href="#L-394"><span class="linenos"> 394</span></a> <span class="p">):</span> +</span><span id="L-395"><a href="#L-395"><span class="linenos"> 395</span></a> <span class="n">constant_mapping</span> <span class="o">=</span> <span class="p">{}</span> +</span><span id="L-396"><a href="#L-396"><span class="linenos"> 396</span></a> <span class="k">for</span> <span class="n">expr</span><span class="p">,</span> <span class="o">*</span><span class="n">_</span> <span class="ow">in</span> <span class="n">walk_in_scope</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">prune</span><span class="o">=</span><span class="k">lambda</span> <span class="n">node</span><span class="p">,</span> <span class="o">*</span><span class="n">_</span><span class="p">:</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">If</span><span class="p">)):</span> +</span><span id="L-397"><a href="#L-397"><span class="linenos"> 397</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expr</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">EQ</span><span class="p">):</span> +</span><span id="L-398"><a href="#L-398"><span class="linenos"> 398</span></a> <span class="n">l</span><span class="p">,</span> <span class="n">r</span> <span class="o">=</span> <span class="n">expr</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="n">expr</span><span class="o">.</span><span class="n">right</span> +</span><span id="L-399"><a href="#L-399"><span class="linenos"> 399</span></a> +</span><span id="L-400"><a href="#L-400"><span class="linenos"> 400</span></a> <span class="c1"># TODO: create a helper that can be used to detect nested literal expressions such</span> +</span><span id="L-401"><a href="#L-401"><span class="linenos"> 401</span></a> <span class="c1"># as CAST(123456 AS BIGINT), since we usually want to treat those as literals too</span> +</span><span id="L-402"><a href="#L-402"><span class="linenos"> 402</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">l</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">r</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="p">):</span> +</span><span id="L-403"><a href="#L-403"><span class="linenos"> 403</span></a> <span class="k">pass</span> +</span><span id="L-404"><a href="#L-404"><span class="linenos"> 404</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">r</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">l</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="p">):</span> +</span><span id="L-405"><a href="#L-405"><span class="linenos"> 405</span></a> <span class="n">l</span><span class="p">,</span> <span class="n">r</span> <span class="o">=</span> <span class="n">r</span><span class="p">,</span> <span class="n">l</span> +</span><span id="L-406"><a href="#L-406"><span class="linenos"> 406</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="L-407"><a href="#L-407"><span class="linenos"> 407</span></a> <span class="k">continue</span> </span><span id="L-408"><a href="#L-408"><span class="linenos"> 408</span></a> -</span><span id="L-409"><a href="#L-409"><span class="linenos"> 409</span></a> <span class="k">if</span> <span class="n">constant_mapping</span><span class="p">:</span> -</span><span id="L-410"><a href="#L-410"><span class="linenos"> 410</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">find_all_in_scope</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">):</span> -</span><span id="L-411"><a href="#L-411"><span class="linenos"> 411</span></a> <span class="n">parent</span> <span class="o">=</span> <span class="n">column</span><span class="o">.</span><span class="n">parent</span> -</span><span id="L-412"><a href="#L-412"><span class="linenos"> 412</span></a> <span class="n">column_id</span><span class="p">,</span> <span class="n">constant</span> <span class="o">=</span> <span class="n">constant_mapping</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">column</span><span class="p">)</span> <span class="ow">or</span> <span class="p">(</span><span class="kc">None</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span> -</span><span id="L-413"><a href="#L-413"><span class="linenos"> 413</span></a> <span class="k">if</span> <span class="p">(</span> -</span><span id="L-414"><a href="#L-414"><span class="linenos"> 414</span></a> <span class="n">column_id</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span> -</span><span id="L-415"><a href="#L-415"><span class="linenos"> 415</span></a> <span class="ow">and</span> <span class="nb">id</span><span class="p">(</span><span class="n">column</span><span class="p">)</span> <span class="o">!=</span> <span class="n">column_id</span> -</span><span id="L-416"><a href="#L-416"><span class="linenos"> 416</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Is</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="o">.</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Null</span><span class="p">))</span> -</span><span id="L-417"><a href="#L-417"><span class="linenos"> 417</span></a> <span class="p">):</span> -</span><span id="L-418"><a href="#L-418"><span class="linenos"> 418</span></a> <span class="n">column</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">constant</span><span class="o">.</span><span class="n">copy</span><span class="p">())</span> -</span><span id="L-419"><a href="#L-419"><span class="linenos"> 419</span></a> -</span><span id="L-420"><a href="#L-420"><span class="linenos"> 420</span></a> <span class="k">return</span> <span class="n">expression</span> +</span><span id="L-409"><a href="#L-409"><span class="linenos"> 409</span></a> <span class="n">constant_mapping</span><span class="p">[</span><span class="n">l</span><span class="p">]</span> <span class="o">=</span> <span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">l</span><span class="p">),</span> <span class="n">r</span><span class="p">)</span> +</span><span id="L-410"><a href="#L-410"><span class="linenos"> 410</span></a> +</span><span id="L-411"><a href="#L-411"><span class="linenos"> 411</span></a> <span class="k">if</span> <span class="n">constant_mapping</span><span class="p">:</span> +</span><span id="L-412"><a href="#L-412"><span class="linenos"> 412</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">find_all_in_scope</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">):</span> +</span><span id="L-413"><a href="#L-413"><span class="linenos"> 413</span></a> <span class="n">parent</span> <span class="o">=</span> <span class="n">column</span><span class="o">.</span><span class="n">parent</span> +</span><span id="L-414"><a href="#L-414"><span class="linenos"> 414</span></a> <span class="n">column_id</span><span class="p">,</span> <span class="n">constant</span> <span class="o">=</span> <span class="n">constant_mapping</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">column</span><span class="p">)</span> <span class="ow">or</span> <span class="p">(</span><span class="kc">None</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span> +</span><span id="L-415"><a href="#L-415"><span class="linenos"> 415</span></a> <span class="k">if</span> <span class="p">(</span> +</span><span id="L-416"><a href="#L-416"><span class="linenos"> 416</span></a> <span class="n">column_id</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span> +</span><span id="L-417"><a href="#L-417"><span class="linenos"> 417</span></a> <span class="ow">and</span> <span class="nb">id</span><span class="p">(</span><span class="n">column</span><span class="p">)</span> <span class="o">!=</span> <span class="n">column_id</span> +</span><span id="L-418"><a href="#L-418"><span class="linenos"> 418</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Is</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="o">.</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Null</span><span class="p">))</span> +</span><span id="L-419"><a href="#L-419"><span class="linenos"> 419</span></a> <span class="p">):</span> +</span><span id="L-420"><a href="#L-420"><span class="linenos"> 420</span></a> <span class="n">column</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">constant</span><span class="o">.</span><span class="n">copy</span><span class="p">())</span> </span><span id="L-421"><a href="#L-421"><span class="linenos"> 421</span></a> -</span><span id="L-422"><a href="#L-422"><span class="linenos"> 422</span></a> -</span><span id="L-423"><a href="#L-423"><span class="linenos"> 423</span></a><span class="n">INVERSE_DATE_OPS</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Type</span><span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">],</span> <span class="n">t</span><span class="o">.</span><span class="n">Type</span><span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">]]</span> <span class="o">=</span> <span class="p">{</span> -</span><span id="L-424"><a href="#L-424"><span class="linenos"> 424</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DateAdd</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Sub</span><span class="p">,</span> -</span><span id="L-425"><a href="#L-425"><span class="linenos"> 425</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DateSub</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">,</span> -</span><span id="L-426"><a href="#L-426"><span class="linenos"> 426</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DatetimeAdd</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Sub</span><span class="p">,</span> -</span><span id="L-427"><a href="#L-427"><span class="linenos"> 427</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DatetimeSub</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">,</span> -</span><span id="L-428"><a href="#L-428"><span class="linenos"> 428</span></a><span class="p">}</span> -</span><span id="L-429"><a href="#L-429"><span class="linenos"> 429</span></a> -</span><span id="L-430"><a href="#L-430"><span class="linenos"> 430</span></a><span class="n">INVERSE_OPS</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Type</span><span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">],</span> <span class="n">t</span><span class="o">.</span><span class="n">Type</span><span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">]]</span> <span class="o">=</span> <span class="p">{</span> -</span><span id="L-431"><a href="#L-431"><span class="linenos"> 431</span></a> <span class="o">**</span><span class="n">INVERSE_DATE_OPS</span><span class="p">,</span> -</span><span id="L-432"><a href="#L-432"><span class="linenos"> 432</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Sub</span><span class="p">,</span> -</span><span id="L-433"><a href="#L-433"><span class="linenos"> 433</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Sub</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">,</span> -</span><span id="L-434"><a href="#L-434"><span class="linenos"> 434</span></a><span class="p">}</span> -</span><span id="L-435"><a href="#L-435"><span class="linenos"> 435</span></a> -</span><span id="L-436"><a href="#L-436"><span class="linenos"> 436</span></a> -</span><span id="L-437"><a href="#L-437"><span class="linenos"> 437</span></a><span class="k">def</span> <span class="nf">_is_number</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="nb">bool</span><span class="p">:</span> -</span><span id="L-438"><a href="#L-438"><span class="linenos"> 438</span></a> <span class="k">return</span> <span class="n">expression</span><span class="o">.</span><span class="n">is_number</span> -</span><span id="L-439"><a href="#L-439"><span class="linenos"> 439</span></a> -</span><span id="L-440"><a href="#L-440"><span class="linenos"> 440</span></a> -</span><span id="L-441"><a href="#L-441"><span class="linenos"> 441</span></a><span class="k">def</span> <span class="nf">_is_interval</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="nb">bool</span><span class="p">:</span> -</span><span id="L-442"><a href="#L-442"><span class="linenos"> 442</span></a> <span class="k">return</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Interval</span><span class="p">)</span> <span class="ow">and</span> <span class="n">extract_interval</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span> -</span><span id="L-443"><a href="#L-443"><span class="linenos"> 443</span></a> -</span><span id="L-444"><a href="#L-444"><span class="linenos"> 444</span></a> -</span><span id="L-445"><a href="#L-445"><span class="linenos"> 445</span></a><span class="nd">@catch</span><span class="p">(</span><span class="ne">ModuleNotFoundError</span><span class="p">,</span> <span class="n">UnsupportedUnit</span><span class="p">)</span> -</span><span id="L-446"><a href="#L-446"><span class="linenos"> 446</span></a><span class="k">def</span> <span class="nf">simplify_equality</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">:</span> -</span><span id="L-447"><a href="#L-447"><span class="linenos"> 447</span></a><span class="w"> </span><span class="sd">"""</span> -</span><span id="L-448"><a href="#L-448"><span class="linenos"> 448</span></a><span class="sd"> Use the subtraction and addition properties of equality to simplify expressions:</span> -</span><span id="L-449"><a href="#L-449"><span class="linenos"> 449</span></a> -</span><span id="L-450"><a href="#L-450"><span class="linenos"> 450</span></a><span class="sd"> x + 1 = 3 becomes x = 2</span> +</span><span id="L-422"><a href="#L-422"><span class="linenos"> 422</span></a> <span class="k">return</span> <span class="n">expression</span> +</span><span id="L-423"><a href="#L-423"><span class="linenos"> 423</span></a> +</span><span id="L-424"><a href="#L-424"><span class="linenos"> 424</span></a> +</span><span id="L-425"><a href="#L-425"><span class="linenos"> 425</span></a><span class="n">INVERSE_DATE_OPS</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Type</span><span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">],</span> <span class="n">t</span><span class="o">.</span><span class="n">Type</span><span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">]]</span> <span class="o">=</span> <span class="p">{</span> +</span><span id="L-426"><a href="#L-426"><span class="linenos"> 426</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DateAdd</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Sub</span><span class="p">,</span> +</span><span id="L-427"><a href="#L-427"><span class="linenos"> 427</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DateSub</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">,</span> +</span><span id="L-428"><a href="#L-428"><span class="linenos"> 428</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DatetimeAdd</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Sub</span><span class="p">,</span> +</span><span id="L-429"><a href="#L-429"><span class="linenos"> 429</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DatetimeSub</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">,</span> +</span><span id="L-430"><a href="#L-430"><span class="linenos"> 430</span></a><span class="p">}</span> +</span><span id="L-431"><a href="#L-431"><span class="linenos"> 431</span></a> +</span><span id="L-432"><a href="#L-432"><span class="linenos"> 432</span></a><span class="n">INVERSE_OPS</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Type</span><span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">],</span> <span class="n">t</span><span class="o">.</span><span class="n">Type</span><span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">]]</span> <span class="o">=</span> <span class="p">{</span> +</span><span id="L-433"><a href="#L-433"><span class="linenos"> 433</span></a> <span class="o">**</span><span class="n">INVERSE_DATE_OPS</span><span class="p">,</span> +</span><span id="L-434"><a href="#L-434"><span class="linenos"> 434</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Sub</span><span class="p">,</span> +</span><span id="L-435"><a href="#L-435"><span class="linenos"> 435</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Sub</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">,</span> +</span><span id="L-436"><a href="#L-436"><span class="linenos"> 436</span></a><span class="p">}</span> +</span><span id="L-437"><a href="#L-437"><span class="linenos"> 437</span></a> +</span><span id="L-438"><a href="#L-438"><span class="linenos"> 438</span></a> +</span><span id="L-439"><a href="#L-439"><span class="linenos"> 439</span></a><span class="k">def</span> <span class="nf">_is_number</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="nb">bool</span><span class="p">:</span> +</span><span id="L-440"><a href="#L-440"><span class="linenos"> 440</span></a> <span class="k">return</span> <span class="n">expression</span><span class="o">.</span><span class="n">is_number</span> +</span><span id="L-441"><a href="#L-441"><span class="linenos"> 441</span></a> +</span><span id="L-442"><a href="#L-442"><span class="linenos"> 442</span></a> +</span><span id="L-443"><a href="#L-443"><span class="linenos"> 443</span></a><span class="k">def</span> <span class="nf">_is_interval</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="nb">bool</span><span class="p">:</span> +</span><span id="L-444"><a href="#L-444"><span class="linenos"> 444</span></a> <span class="k">return</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Interval</span><span class="p">)</span> <span class="ow">and</span> <span class="n">extract_interval</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span> +</span><span id="L-445"><a href="#L-445"><span class="linenos"> 445</span></a> +</span><span id="L-446"><a href="#L-446"><span class="linenos"> 446</span></a> +</span><span id="L-447"><a href="#L-447"><span class="linenos"> 447</span></a><span class="nd">@catch</span><span class="p">(</span><span class="ne">ModuleNotFoundError</span><span class="p">,</span> <span class="n">UnsupportedUnit</span><span class="p">)</span> +</span><span id="L-448"><a href="#L-448"><span class="linenos"> 448</span></a><span class="k">def</span> <span class="nf">simplify_equality</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">:</span> +</span><span id="L-449"><a href="#L-449"><span class="linenos"> 449</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="L-450"><a href="#L-450"><span class="linenos"> 450</span></a><span class="sd"> Use the subtraction and addition properties of equality to simplify expressions:</span> </span><span id="L-451"><a href="#L-451"><span class="linenos"> 451</span></a> -</span><span id="L-452"><a href="#L-452"><span class="linenos"> 452</span></a><span class="sd"> There are two binary operations in the above expression: + and =</span> -</span><span id="L-453"><a href="#L-453"><span class="linenos"> 453</span></a><span class="sd"> Here's how we reference all the operands in the code below:</span> -</span><span id="L-454"><a href="#L-454"><span class="linenos"> 454</span></a> -</span><span id="L-455"><a href="#L-455"><span class="linenos"> 455</span></a><span class="sd"> l r</span> -</span><span id="L-456"><a href="#L-456"><span class="linenos"> 456</span></a><span class="sd"> x + 1 = 3</span> -</span><span id="L-457"><a href="#L-457"><span class="linenos"> 457</span></a><span class="sd"> a b</span> -</span><span id="L-458"><a href="#L-458"><span class="linenos"> 458</span></a><span class="sd"> """</span> -</span><span id="L-459"><a href="#L-459"><span class="linenos"> 459</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">COMPARISONS</span><span class="p">):</span> -</span><span id="L-460"><a href="#L-460"><span class="linenos"> 460</span></a> <span class="n">l</span><span class="p">,</span> <span class="n">r</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="n">expression</span><span class="o">.</span><span class="n">right</span> -</span><span id="L-461"><a href="#L-461"><span class="linenos"> 461</span></a> -</span><span id="L-462"><a href="#L-462"><span class="linenos"> 462</span></a> <span class="k">if</span> <span class="n">l</span><span class="o">.</span><span class="vm">__class__</span> <span class="ow">in</span> <span class="n">INVERSE_OPS</span><span class="p">:</span> -</span><span id="L-463"><a href="#L-463"><span class="linenos"> 463</span></a> <span class="k">pass</span> -</span><span id="L-464"><a href="#L-464"><span class="linenos"> 464</span></a> <span class="k">elif</span> <span class="n">r</span><span class="o">.</span><span class="vm">__class__</span> <span class="ow">in</span> <span class="n">INVERSE_OPS</span><span class="p">:</span> -</span><span id="L-465"><a href="#L-465"><span class="linenos"> 465</span></a> <span class="n">l</span><span class="p">,</span> <span class="n">r</span> <span class="o">=</span> <span class="n">r</span><span class="p">,</span> <span class="n">l</span> -</span><span id="L-466"><a href="#L-466"><span class="linenos"> 466</span></a> <span class="k">else</span><span class="p">:</span> -</span><span id="L-467"><a href="#L-467"><span class="linenos"> 467</span></a> <span class="k">return</span> <span class="n">expression</span> -</span><span id="L-468"><a href="#L-468"><span class="linenos"> 468</span></a> -</span><span id="L-469"><a href="#L-469"><span class="linenos"> 469</span></a> <span class="k">if</span> <span class="n">r</span><span class="o">.</span><span class="n">is_number</span><span class="p">:</span> -</span><span id="L-470"><a href="#L-470"><span class="linenos"> 470</span></a> <span class="n">a_predicate</span> <span class="o">=</span> <span class="n">_is_number</span> -</span><span id="L-471"><a href="#L-471"><span class="linenos"> 471</span></a> <span class="n">b_predicate</span> <span class="o">=</span> <span class="n">_is_number</span> -</span><span id="L-472"><a href="#L-472"><span class="linenos"> 472</span></a> <span class="k">elif</span> <span class="n">_is_date_literal</span><span class="p">(</span><span class="n">r</span><span class="p">):</span> -</span><span id="L-473"><a href="#L-473"><span class="linenos"> 473</span></a> <span class="n">a_predicate</span> <span class="o">=</span> <span class="n">_is_date_literal</span> -</span><span id="L-474"><a href="#L-474"><span class="linenos"> 474</span></a> <span class="n">b_predicate</span> <span class="o">=</span> <span class="n">_is_interval</span> -</span><span id="L-475"><a href="#L-475"><span class="linenos"> 475</span></a> <span class="k">else</span><span class="p">:</span> -</span><span id="L-476"><a href="#L-476"><span class="linenos"> 476</span></a> <span class="k">return</span> <span class="n">expression</span> -</span><span id="L-477"><a href="#L-477"><span class="linenos"> 477</span></a> -</span><span id="L-478"><a href="#L-478"><span class="linenos"> 478</span></a> <span class="k">if</span> <span class="n">l</span><span class="o">.</span><span class="vm">__class__</span> <span class="ow">in</span> <span class="n">INVERSE_DATE_OPS</span><span class="p">:</span> -</span><span id="L-479"><a href="#L-479"><span class="linenos"> 479</span></a> <span class="n">a</span> <span class="o">=</span> <span class="n">l</span><span class="o">.</span><span class="n">this</span> -</span><span id="L-480"><a href="#L-480"><span class="linenos"> 480</span></a> <span class="n">b</span> <span class="o">=</span> <span class="n">l</span><span class="o">.</span><span class="n">interval</span><span class="p">()</span> -</span><span id="L-481"><a href="#L-481"><span class="linenos"> 481</span></a> <span class="k">else</span><span class="p">:</span> -</span><span id="L-482"><a href="#L-482"><span class="linenos"> 482</span></a> <span class="n">a</span><span class="p">,</span> <span class="n">b</span> <span class="o">=</span> <span class="n">l</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="n">l</span><span class="o">.</span><span class="n">right</span> -</span><span id="L-483"><a href="#L-483"><span class="linenos"> 483</span></a> -</span><span id="L-484"><a href="#L-484"><span class="linenos"> 484</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">a_predicate</span><span class="p">(</span><span class="n">a</span><span class="p">)</span> <span class="ow">and</span> <span class="n">b_predicate</span><span class="p">(</span><span class="n">b</span><span class="p">):</span> -</span><span id="L-485"><a href="#L-485"><span class="linenos"> 485</span></a> <span class="k">pass</span> -</span><span id="L-486"><a href="#L-486"><span class="linenos"> 486</span></a> <span class="k">elif</span> <span class="ow">not</span> <span class="n">a_predicate</span><span class="p">(</span><span class="n">b</span><span class="p">)</span> <span class="ow">and</span> <span class="n">b_predicate</span><span class="p">(</span><span class="n">a</span><span class="p">):</span> -</span><span id="L-487"><a href="#L-487"><span class="linenos"> 487</span></a> <span class="n">a</span><span class="p">,</span> <span class="n">b</span> <span class="o">=</span> <span class="n">b</span><span class="p">,</span> <span class="n">a</span> -</span><span id="L-488"><a href="#L-488"><span class="linenos"> 488</span></a> <span class="k">else</span><span class="p">:</span> -</span><span id="L-489"><a href="#L-489"><span class="linenos"> 489</span></a> <span class="k">return</span> <span class="n">expression</span> -</span><span id="L-490"><a href="#L-490"><span class="linenos"> 490</span></a> -</span><span id="L-491"><a href="#L-491"><span class="linenos"> 491</span></a> <span class="k">return</span> <span class="n">expression</span><span class="o">.</span><span class="vm">__class__</span><span class="p">(</span> -</span><span id="L-492"><a href="#L-492"><span class="linenos"> 492</span></a> <span class="n">this</span><span class="o">=</span><span class="n">a</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="n">INVERSE_OPS</span><span class="p">[</span><span class="n">l</span><span class="o">.</span><span class="vm">__class__</span><span class="p">](</span><span class="n">this</span><span class="o">=</span><span class="n">r</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="n">b</span><span class="p">)</span> -</span><span id="L-493"><a href="#L-493"><span class="linenos"> 493</span></a> <span class="p">)</span> -</span><span id="L-494"><a href="#L-494"><span class="linenos"> 494</span></a> <span class="k">return</span> <span class="n">expression</span> -</span><span id="L-495"><a href="#L-495"><span class="linenos"> 495</span></a> -</span><span id="L-496"><a href="#L-496"><span class="linenos"> 496</span></a> -</span><span id="L-497"><a href="#L-497"><span class="linenos"> 497</span></a><span class="k">def</span> <span class="nf">simplify_literals</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span> -</span><span id="L-498"><a href="#L-498"><span class="linenos"> 498</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Binary</span><span class="p">)</span> <span class="ow">and</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Connector</span><span class="p">):</span> -</span><span id="L-499"><a href="#L-499"><span class="linenos"> 499</span></a> <span class="k">return</span> <span class="n">_flat_simplify</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">_simplify_binary</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span> +</span><span id="L-452"><a href="#L-452"><span class="linenos"> 452</span></a><span class="sd"> x + 1 = 3 becomes x = 2</span> +</span><span id="L-453"><a href="#L-453"><span class="linenos"> 453</span></a> +</span><span id="L-454"><a href="#L-454"><span class="linenos"> 454</span></a><span class="sd"> There are two binary operations in the above expression: + and =</span> +</span><span id="L-455"><a href="#L-455"><span class="linenos"> 455</span></a><span class="sd"> Here's how we reference all the operands in the code below:</span> +</span><span id="L-456"><a href="#L-456"><span class="linenos"> 456</span></a> +</span><span id="L-457"><a href="#L-457"><span class="linenos"> 457</span></a><span class="sd"> l r</span> +</span><span id="L-458"><a href="#L-458"><span class="linenos"> 458</span></a><span class="sd"> x + 1 = 3</span> +</span><span id="L-459"><a href="#L-459"><span class="linenos"> 459</span></a><span class="sd"> a b</span> +</span><span id="L-460"><a href="#L-460"><span class="linenos"> 460</span></a><span class="sd"> """</span> +</span><span id="L-461"><a href="#L-461"><span class="linenos"> 461</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">COMPARISONS</span><span class="p">):</span> +</span><span id="L-462"><a href="#L-462"><span class="linenos"> 462</span></a> <span class="n">l</span><span class="p">,</span> <span class="n">r</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="n">expression</span><span class="o">.</span><span class="n">right</span> +</span><span id="L-463"><a href="#L-463"><span class="linenos"> 463</span></a> +</span><span id="L-464"><a href="#L-464"><span class="linenos"> 464</span></a> <span class="k">if</span> <span class="n">l</span><span class="o">.</span><span class="vm">__class__</span> <span class="ow">in</span> <span class="n">INVERSE_OPS</span><span class="p">:</span> +</span><span id="L-465"><a href="#L-465"><span class="linenos"> 465</span></a> <span class="k">pass</span> +</span><span id="L-466"><a href="#L-466"><span class="linenos"> 466</span></a> <span class="k">elif</span> <span class="n">r</span><span class="o">.</span><span class="vm">__class__</span> <span class="ow">in</span> <span class="n">INVERSE_OPS</span><span class="p">:</span> +</span><span id="L-467"><a href="#L-467"><span class="linenos"> 467</span></a> <span class="n">l</span><span class="p">,</span> <span class="n">r</span> <span class="o">=</span> <span class="n">r</span><span class="p">,</span> <span class="n">l</span> +</span><span id="L-468"><a href="#L-468"><span class="linenos"> 468</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="L-469"><a href="#L-469"><span class="linenos"> 469</span></a> <span class="k">return</span> <span class="n">expression</span> +</span><span id="L-470"><a href="#L-470"><span class="linenos"> 470</span></a> +</span><span id="L-471"><a href="#L-471"><span class="linenos"> 471</span></a> <span class="k">if</span> <span class="n">r</span><span class="o">.</span><span class="n">is_number</span><span class="p">:</span> +</span><span id="L-472"><a href="#L-472"><span class="linenos"> 472</span></a> <span class="n">a_predicate</span> <span class="o">=</span> <span class="n">_is_number</span> +</span><span id="L-473"><a href="#L-473"><span class="linenos"> 473</span></a> <span class="n">b_predicate</span> <span class="o">=</span> <span class="n">_is_number</span> +</span><span id="L-474"><a href="#L-474"><span class="linenos"> 474</span></a> <span class="k">elif</span> <span class="n">_is_date_literal</span><span class="p">(</span><span class="n">r</span><span class="p">):</span> +</span><span id="L-475"><a href="#L-475"><span class="linenos"> 475</span></a> <span class="n">a_predicate</span> <span class="o">=</span> <span class="n">_is_date_literal</span> +</span><span id="L-476"><a href="#L-476"><span class="linenos"> 476</span></a> <span class="n">b_predicate</span> <span class="o">=</span> <span class="n">_is_interval</span> +</span><span id="L-477"><a href="#L-477"><span class="linenos"> 477</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="L-478"><a href="#L-478"><span class="linenos"> 478</span></a> <span class="k">return</span> <span class="n">expression</span> +</span><span id="L-479"><a href="#L-479"><span class="linenos"> 479</span></a> +</span><span id="L-480"><a href="#L-480"><span class="linenos"> 480</span></a> <span class="k">if</span> <span class="n">l</span><span class="o">.</span><span class="vm">__class__</span> <span class="ow">in</span> <span class="n">INVERSE_DATE_OPS</span><span class="p">:</span> +</span><span id="L-481"><a href="#L-481"><span class="linenos"> 481</span></a> <span class="n">l</span> <span class="o">=</span> <span class="n">t</span><span class="o">.</span><span class="n">cast</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">IntervalOp</span><span class="p">,</span> <span class="n">l</span><span class="p">)</span> +</span><span id="L-482"><a href="#L-482"><span class="linenos"> 482</span></a> <span class="n">a</span> <span class="o">=</span> <span class="n">l</span><span class="o">.</span><span class="n">this</span> +</span><span id="L-483"><a href="#L-483"><span class="linenos"> 483</span></a> <span class="n">b</span> <span class="o">=</span> <span class="n">l</span><span class="o">.</span><span class="n">interval</span><span class="p">()</span> +</span><span id="L-484"><a href="#L-484"><span class="linenos"> 484</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="L-485"><a href="#L-485"><span class="linenos"> 485</span></a> <span class="n">l</span> <span class="o">=</span> <span class="n">t</span><span class="o">.</span><span class="n">cast</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Binary</span><span class="p">,</span> <span class="n">l</span><span class="p">)</span> +</span><span id="L-486"><a href="#L-486"><span class="linenos"> 486</span></a> <span class="n">a</span><span class="p">,</span> <span class="n">b</span> <span class="o">=</span> <span class="n">l</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="n">l</span><span class="o">.</span><span class="n">right</span> +</span><span id="L-487"><a href="#L-487"><span class="linenos"> 487</span></a> +</span><span id="L-488"><a href="#L-488"><span class="linenos"> 488</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">a_predicate</span><span class="p">(</span><span class="n">a</span><span class="p">)</span> <span class="ow">and</span> <span class="n">b_predicate</span><span class="p">(</span><span class="n">b</span><span class="p">):</span> +</span><span id="L-489"><a href="#L-489"><span class="linenos"> 489</span></a> <span class="k">pass</span> +</span><span id="L-490"><a href="#L-490"><span class="linenos"> 490</span></a> <span class="k">elif</span> <span class="ow">not</span> <span class="n">a_predicate</span><span class="p">(</span><span class="n">b</span><span class="p">)</span> <span class="ow">and</span> <span class="n">b_predicate</span><span class="p">(</span><span class="n">a</span><span class="p">):</span> +</span><span id="L-491"><a href="#L-491"><span class="linenos"> 491</span></a> <span class="n">a</span><span class="p">,</span> <span class="n">b</span> <span class="o">=</span> <span class="n">b</span><span class="p">,</span> <span class="n">a</span> +</span><span id="L-492"><a href="#L-492"><span class="linenos"> 492</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="L-493"><a href="#L-493"><span class="linenos"> 493</span></a> <span class="k">return</span> <span class="n">expression</span> +</span><span id="L-494"><a href="#L-494"><span class="linenos"> 494</span></a> +</span><span id="L-495"><a href="#L-495"><span class="linenos"> 495</span></a> <span class="k">return</span> <span class="n">expression</span><span class="o">.</span><span class="vm">__class__</span><span class="p">(</span> +</span><span id="L-496"><a href="#L-496"><span class="linenos"> 496</span></a> <span class="n">this</span><span class="o">=</span><span class="n">a</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="n">INVERSE_OPS</span><span class="p">[</span><span class="n">l</span><span class="o">.</span><span class="vm">__class__</span><span class="p">](</span><span class="n">this</span><span class="o">=</span><span class="n">r</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="n">b</span><span class="p">)</span> +</span><span id="L-497"><a href="#L-497"><span class="linenos"> 497</span></a> <span class="p">)</span> +</span><span id="L-498"><a href="#L-498"><span class="linenos"> 498</span></a> <span class="k">return</span> <span class="n">expression</span> +</span><span id="L-499"><a href="#L-499"><span class="linenos"> 499</span></a> </span><span id="L-500"><a href="#L-500"><span class="linenos"> 500</span></a> -</span><span id="L-501"><a href="#L-501"><span class="linenos"> 501</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Neg</span><span class="p">):</span> -</span><span id="L-502"><a href="#L-502"><span class="linenos"> 502</span></a> <span class="n">this</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span> -</span><span id="L-503"><a href="#L-503"><span class="linenos"> 503</span></a> <span class="k">if</span> <span class="n">this</span><span class="o">.</span><span class="n">is_number</span><span class="p">:</span> -</span><span id="L-504"><a href="#L-504"><span class="linenos"> 504</span></a> <span class="n">value</span> <span class="o">=</span> <span class="n">this</span><span class="o">.</span><span class="n">name</span> -</span><span id="L-505"><a href="#L-505"><span class="linenos"> 505</span></a> <span class="k">if</span> <span class="n">value</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">==</span> <span class="s2">"-"</span><span class="p">:</span> -</span><span id="L-506"><a href="#L-506"><span class="linenos"> 506</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="o">.</span><span class="n">number</span><span class="p">(</span><span class="n">value</span><span class="p">[</span><span class="mi">1</span><span class="p">:])</span> -</span><span id="L-507"><a href="#L-507"><span class="linenos"> 507</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="o">.</span><span class="n">number</span><span class="p">(</span><span class="sa">f</span><span class="s2">"-</span><span class="si">{</span><span class="n">value</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> -</span><span id="L-508"><a href="#L-508"><span class="linenos"> 508</span></a> -</span><span id="L-509"><a href="#L-509"><span class="linenos"> 509</span></a> <span class="k">return</span> <span class="n">expression</span> -</span><span id="L-510"><a href="#L-510"><span class="linenos"> 510</span></a> -</span><span id="L-511"><a href="#L-511"><span class="linenos"> 511</span></a> -</span><span id="L-512"><a href="#L-512"><span class="linenos"> 512</span></a><span class="k">def</span> <span class="nf">_simplify_binary</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">):</span> -</span><span id="L-513"><a href="#L-513"><span class="linenos"> 513</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Is</span><span class="p">):</span> -</span><span id="L-514"><a href="#L-514"><span class="linenos"> 514</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">):</span> -</span><span id="L-515"><a href="#L-515"><span class="linenos"> 515</span></a> <span class="n">c</span> <span class="o">=</span> <span class="n">b</span><span class="o">.</span><span class="n">this</span> -</span><span id="L-516"><a href="#L-516"><span class="linenos"> 516</span></a> <span class="n">not_</span> <span class="o">=</span> <span class="kc">True</span> -</span><span id="L-517"><a href="#L-517"><span class="linenos"> 517</span></a> <span class="k">else</span><span class="p">:</span> -</span><span id="L-518"><a href="#L-518"><span class="linenos"> 518</span></a> <span class="n">c</span> <span class="o">=</span> <span class="n">b</span> -</span><span id="L-519"><a href="#L-519"><span class="linenos"> 519</span></a> <span class="n">not_</span> <span class="o">=</span> <span class="kc">False</span> -</span><span id="L-520"><a href="#L-520"><span class="linenos"> 520</span></a> -</span><span id="L-521"><a href="#L-521"><span class="linenos"> 521</span></a> <span class="k">if</span> <span class="n">is_null</span><span class="p">(</span><span class="n">c</span><span class="p">):</span> -</span><span id="L-522"><a href="#L-522"><span class="linenos"> 522</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="p">):</span> -</span><span id="L-523"><a href="#L-523"><span class="linenos"> 523</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> <span class="k">if</span> <span class="n">not_</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> -</span><span id="L-524"><a href="#L-524"><span class="linenos"> 524</span></a> <span class="k">if</span> <span class="n">is_null</span><span class="p">(</span><span class="n">a</span><span class="p">):</span> -</span><span id="L-525"><a href="#L-525"><span class="linenos"> 525</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> <span class="k">if</span> <span class="n">not_</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> -</span><span id="L-526"><a href="#L-526"><span class="linenos"> 526</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">NullSafeEQ</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">NullSafeNEQ</span><span class="p">)):</span> -</span><span id="L-527"><a href="#L-527"><span class="linenos"> 527</span></a> <span class="k">return</span> <span class="kc">None</span> -</span><span id="L-528"><a href="#L-528"><span class="linenos"> 528</span></a> <span class="k">elif</span> <span class="n">is_null</span><span class="p">(</span><span class="n">a</span><span class="p">)</span> <span class="ow">or</span> <span class="n">is_null</span><span class="p">(</span><span class="n">b</span><span class="p">):</span> -</span><span id="L-529"><a href="#L-529"><span class="linenos"> 529</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()</span> -</span><span id="L-530"><a href="#L-530"><span class="linenos"> 530</span></a> -</span><span id="L-531"><a href="#L-531"><span class="linenos"> 531</span></a> <span class="k">if</span> <span class="n">a</span><span class="o">.</span><span class="n">is_number</span> <span class="ow">and</span> <span class="n">b</span><span class="o">.</span><span class="n">is_number</span><span class="p">:</span> -</span><span id="L-532"><a href="#L-532"><span class="linenos"> 532</span></a> <span class="n">a</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">a</span><span class="o">.</span><span class="n">name</span><span class="p">)</span> <span class="k">if</span> <span class="n">a</span><span class="o">.</span><span class="n">is_int</span> <span class="k">else</span> <span class="n">Decimal</span><span class="p">(</span><span class="n">a</span><span class="o">.</span><span class="n">name</span><span class="p">)</span> -</span><span id="L-533"><a href="#L-533"><span class="linenos"> 533</span></a> <span class="n">b</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">b</span><span class="o">.</span><span class="n">name</span><span class="p">)</span> <span class="k">if</span> <span class="n">b</span><span class="o">.</span><span class="n">is_int</span> <span class="k">else</span> <span class="n">Decimal</span><span class="p">(</span><span class="n">b</span><span class="o">.</span><span class="n">name</span><span class="p">)</span> +</span><span id="L-501"><a href="#L-501"><span class="linenos"> 501</span></a><span class="k">def</span> <span class="nf">simplify_literals</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span> +</span><span id="L-502"><a href="#L-502"><span class="linenos"> 502</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Binary</span><span class="p">)</span> <span class="ow">and</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Connector</span><span class="p">):</span> +</span><span id="L-503"><a href="#L-503"><span class="linenos"> 503</span></a> <span class="k">return</span> <span class="n">_flat_simplify</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">_simplify_binary</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span> +</span><span id="L-504"><a href="#L-504"><span class="linenos"> 504</span></a> +</span><span id="L-505"><a href="#L-505"><span class="linenos"> 505</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Neg</span><span class="p">):</span> +</span><span id="L-506"><a href="#L-506"><span class="linenos"> 506</span></a> <span class="n">this</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span> +</span><span id="L-507"><a href="#L-507"><span class="linenos"> 507</span></a> <span class="k">if</span> <span class="n">this</span><span class="o">.</span><span class="n">is_number</span><span class="p">:</span> +</span><span id="L-508"><a href="#L-508"><span class="linenos"> 508</span></a> <span class="n">value</span> <span class="o">=</span> <span class="n">this</span><span class="o">.</span><span class="n">name</span> +</span><span id="L-509"><a href="#L-509"><span class="linenos"> 509</span></a> <span class="k">if</span> <span class="n">value</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">==</span> <span class="s2">"-"</span><span class="p">:</span> +</span><span id="L-510"><a href="#L-510"><span class="linenos"> 510</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="o">.</span><span class="n">number</span><span class="p">(</span><span class="n">value</span><span class="p">[</span><span class="mi">1</span><span class="p">:])</span> +</span><span id="L-511"><a href="#L-511"><span class="linenos"> 511</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="o">.</span><span class="n">number</span><span class="p">(</span><span class="sa">f</span><span class="s2">"-</span><span class="si">{</span><span class="n">value</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> +</span><span id="L-512"><a href="#L-512"><span class="linenos"> 512</span></a> +</span><span id="L-513"><a href="#L-513"><span class="linenos"> 513</span></a> <span class="k">return</span> <span class="n">expression</span> +</span><span id="L-514"><a href="#L-514"><span class="linenos"> 514</span></a> +</span><span id="L-515"><a href="#L-515"><span class="linenos"> 515</span></a> +</span><span id="L-516"><a href="#L-516"><span class="linenos"> 516</span></a><span class="k">def</span> <span class="nf">_simplify_binary</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">):</span> +</span><span id="L-517"><a href="#L-517"><span class="linenos"> 517</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Is</span><span class="p">):</span> +</span><span id="L-518"><a href="#L-518"><span class="linenos"> 518</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">):</span> +</span><span id="L-519"><a href="#L-519"><span class="linenos"> 519</span></a> <span class="n">c</span> <span class="o">=</span> <span class="n">b</span><span class="o">.</span><span class="n">this</span> +</span><span id="L-520"><a href="#L-520"><span class="linenos"> 520</span></a> <span class="n">not_</span> <span class="o">=</span> <span class="kc">True</span> +</span><span id="L-521"><a href="#L-521"><span class="linenos"> 521</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="L-522"><a href="#L-522"><span class="linenos"> 522</span></a> <span class="n">c</span> <span class="o">=</span> <span class="n">b</span> +</span><span id="L-523"><a href="#L-523"><span class="linenos"> 523</span></a> <span class="n">not_</span> <span class="o">=</span> <span class="kc">False</span> +</span><span id="L-524"><a href="#L-524"><span class="linenos"> 524</span></a> +</span><span id="L-525"><a href="#L-525"><span class="linenos"> 525</span></a> <span class="k">if</span> <span class="n">is_null</span><span class="p">(</span><span class="n">c</span><span class="p">):</span> +</span><span id="L-526"><a href="#L-526"><span class="linenos"> 526</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="p">):</span> +</span><span id="L-527"><a href="#L-527"><span class="linenos"> 527</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> <span class="k">if</span> <span class="n">not_</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> +</span><span id="L-528"><a href="#L-528"><span class="linenos"> 528</span></a> <span class="k">if</span> <span class="n">is_null</span><span class="p">(</span><span class="n">a</span><span class="p">):</span> +</span><span id="L-529"><a href="#L-529"><span class="linenos"> 529</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> <span class="k">if</span> <span class="n">not_</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> +</span><span id="L-530"><a href="#L-530"><span class="linenos"> 530</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">NullSafeEQ</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">NullSafeNEQ</span><span class="p">)):</span> +</span><span id="L-531"><a href="#L-531"><span class="linenos"> 531</span></a> <span class="k">return</span> <span class="kc">None</span> +</span><span id="L-532"><a href="#L-532"><span class="linenos"> 532</span></a> <span class="k">elif</span> <span class="n">is_null</span><span class="p">(</span><span class="n">a</span><span class="p">)</span> <span class="ow">or</span> <span class="n">is_null</span><span class="p">(</span><span class="n">b</span><span class="p">):</span> +</span><span id="L-533"><a href="#L-533"><span class="linenos"> 533</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()</span> </span><span id="L-534"><a href="#L-534"><span class="linenos"> 534</span></a> -</span><span id="L-535"><a href="#L-535"><span class="linenos"> 535</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">):</span> -</span><span id="L-536"><a href="#L-536"><span class="linenos"> 536</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="o">.</span><span class="n">number</span><span class="p">(</span><span class="n">a</span> <span class="o">+</span> <span class="n">b</span><span class="p">)</span> -</span><span id="L-537"><a href="#L-537"><span class="linenos"> 537</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Sub</span><span class="p">):</span> -</span><span id="L-538"><a href="#L-538"><span class="linenos"> 538</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="o">.</span><span class="n">number</span><span class="p">(</span><span class="n">a</span> <span class="o">-</span> <span class="n">b</span><span class="p">)</span> -</span><span id="L-539"><a href="#L-539"><span class="linenos"> 539</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Mul</span><span class="p">):</span> -</span><span id="L-540"><a href="#L-540"><span class="linenos"> 540</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="o">.</span><span class="n">number</span><span class="p">(</span><span class="n">a</span> <span class="o">*</span> <span class="n">b</span><span class="p">)</span> -</span><span id="L-541"><a href="#L-541"><span class="linenos"> 541</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Div</span><span class="p">):</span> -</span><span id="L-542"><a href="#L-542"><span class="linenos"> 542</span></a> <span class="c1"># engines have differing int div behavior so intdiv is not safe</span> -</span><span id="L-543"><a href="#L-543"><span class="linenos"> 543</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="nb">int</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="nb">int</span><span class="p">):</span> -</span><span id="L-544"><a href="#L-544"><span class="linenos"> 544</span></a> <span class="k">return</span> <span class="kc">None</span> -</span><span id="L-545"><a href="#L-545"><span class="linenos"> 545</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="o">.</span><span class="n">number</span><span class="p">(</span><span class="n">a</span> <span class="o">/</span> <span class="n">b</span><span class="p">)</span> -</span><span id="L-546"><a href="#L-546"><span class="linenos"> 546</span></a> -</span><span id="L-547"><a href="#L-547"><span class="linenos"> 547</span></a> <span class="n">boolean</span> <span class="o">=</span> <span class="n">eval_boolean</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">)</span> -</span><span id="L-548"><a href="#L-548"><span class="linenos"> 548</span></a> -</span><span id="L-549"><a href="#L-549"><span class="linenos"> 549</span></a> <span class="k">if</span> <span class="n">boolean</span><span class="p">:</span> -</span><span id="L-550"><a href="#L-550"><span class="linenos"> 550</span></a> <span class="k">return</span> <span class="n">boolean</span> -</span><span id="L-551"><a href="#L-551"><span class="linenos"> 551</span></a> <span class="k">elif</span> <span class="n">a</span><span class="o">.</span><span class="n">is_string</span> <span class="ow">and</span> <span class="n">b</span><span class="o">.</span><span class="n">is_string</span><span class="p">:</span> -</span><span id="L-552"><a href="#L-552"><span class="linenos"> 552</span></a> <span class="n">boolean</span> <span class="o">=</span> <span class="n">eval_boolean</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">a</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">b</span><span class="o">.</span><span class="n">this</span><span class="p">)</span> -</span><span id="L-553"><a href="#L-553"><span class="linenos"> 553</span></a> -</span><span id="L-554"><a href="#L-554"><span class="linenos"> 554</span></a> <span class="k">if</span> <span class="n">boolean</span><span class="p">:</span> -</span><span id="L-555"><a href="#L-555"><span class="linenos"> 555</span></a> <span class="k">return</span> <span class="n">boolean</span> -</span><span id="L-556"><a href="#L-556"><span class="linenos"> 556</span></a> <span class="k">elif</span> <span class="n">_is_date_literal</span><span class="p">(</span><span class="n">a</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Interval</span><span class="p">):</span> -</span><span id="L-557"><a href="#L-557"><span class="linenos"> 557</span></a> <span class="n">a</span><span class="p">,</span> <span class="n">b</span> <span class="o">=</span> <span class="n">extract_date</span><span class="p">(</span><span class="n">a</span><span class="p">),</span> <span class="n">extract_interval</span><span class="p">(</span><span class="n">b</span><span class="p">)</span> -</span><span id="L-558"><a href="#L-558"><span class="linenos"> 558</span></a> <span class="k">if</span> <span class="n">a</span> <span class="ow">and</span> <span class="n">b</span><span class="p">:</span> -</span><span id="L-559"><a href="#L-559"><span class="linenos"> 559</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">):</span> -</span><span id="L-560"><a href="#L-560"><span class="linenos"> 560</span></a> <span class="k">return</span> <span class="n">date_literal</span><span class="p">(</span><span class="n">a</span> <span class="o">+</span> <span class="n">b</span><span class="p">)</span> -</span><span id="L-561"><a href="#L-561"><span class="linenos"> 561</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Sub</span><span class="p">):</span> -</span><span id="L-562"><a href="#L-562"><span class="linenos"> 562</span></a> <span class="k">return</span> <span class="n">date_literal</span><span class="p">(</span><span class="n">a</span> <span class="o">-</span> <span class="n">b</span><span class="p">)</span> -</span><span id="L-563"><a href="#L-563"><span class="linenos"> 563</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Interval</span><span class="p">)</span> <span class="ow">and</span> <span class="n">_is_date_literal</span><span class="p">(</span><span class="n">b</span><span class="p">):</span> -</span><span id="L-564"><a href="#L-564"><span class="linenos"> 564</span></a> <span class="n">a</span><span class="p">,</span> <span class="n">b</span> <span class="o">=</span> <span class="n">extract_interval</span><span class="p">(</span><span class="n">a</span><span class="p">),</span> <span class="n">extract_date</span><span class="p">(</span><span class="n">b</span><span class="p">)</span> -</span><span id="L-565"><a href="#L-565"><span class="linenos"> 565</span></a> <span class="c1"># you cannot subtract a date from an interval</span> -</span><span id="L-566"><a href="#L-566"><span class="linenos"> 566</span></a> <span class="k">if</span> <span class="n">a</span> <span class="ow">and</span> <span class="n">b</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">):</span> -</span><span id="L-567"><a href="#L-567"><span class="linenos"> 567</span></a> <span class="k">return</span> <span class="n">date_literal</span><span class="p">(</span><span class="n">a</span> <span class="o">+</span> <span class="n">b</span><span class="p">)</span> -</span><span id="L-568"><a href="#L-568"><span class="linenos"> 568</span></a> -</span><span id="L-569"><a href="#L-569"><span class="linenos"> 569</span></a> <span class="k">return</span> <span class="kc">None</span> -</span><span id="L-570"><a href="#L-570"><span class="linenos"> 570</span></a> -</span><span id="L-571"><a href="#L-571"><span class="linenos"> 571</span></a> -</span><span id="L-572"><a href="#L-572"><span class="linenos"> 572</span></a><span class="k">def</span> <span class="nf">simplify_parens</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span> -</span><span id="L-573"><a href="#L-573"><span class="linenos"> 573</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Paren</span><span class="p">):</span> -</span><span id="L-574"><a href="#L-574"><span class="linenos"> 574</span></a> <span class="k">return</span> <span class="n">expression</span> +</span><span id="L-535"><a href="#L-535"><span class="linenos"> 535</span></a> <span class="k">if</span> <span class="n">a</span><span class="o">.</span><span class="n">is_number</span> <span class="ow">and</span> <span class="n">b</span><span class="o">.</span><span class="n">is_number</span><span class="p">:</span> +</span><span id="L-536"><a href="#L-536"><span class="linenos"> 536</span></a> <span class="n">a</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">a</span><span class="o">.</span><span class="n">name</span><span class="p">)</span> <span class="k">if</span> <span class="n">a</span><span class="o">.</span><span class="n">is_int</span> <span class="k">else</span> <span class="n">Decimal</span><span class="p">(</span><span class="n">a</span><span class="o">.</span><span class="n">name</span><span class="p">)</span> +</span><span id="L-537"><a href="#L-537"><span class="linenos"> 537</span></a> <span class="n">b</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">b</span><span class="o">.</span><span class="n">name</span><span class="p">)</span> <span class="k">if</span> <span class="n">b</span><span class="o">.</span><span class="n">is_int</span> <span class="k">else</span> <span class="n">Decimal</span><span class="p">(</span><span class="n">b</span><span class="o">.</span><span class="n">name</span><span class="p">)</span> +</span><span id="L-538"><a href="#L-538"><span class="linenos"> 538</span></a> +</span><span id="L-539"><a href="#L-539"><span class="linenos"> 539</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">):</span> +</span><span id="L-540"><a href="#L-540"><span class="linenos"> 540</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="o">.</span><span class="n">number</span><span class="p">(</span><span class="n">a</span> <span class="o">+</span> <span class="n">b</span><span class="p">)</span> +</span><span id="L-541"><a href="#L-541"><span class="linenos"> 541</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Sub</span><span class="p">):</span> +</span><span id="L-542"><a href="#L-542"><span class="linenos"> 542</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="o">.</span><span class="n">number</span><span class="p">(</span><span class="n">a</span> <span class="o">-</span> <span class="n">b</span><span class="p">)</span> +</span><span id="L-543"><a href="#L-543"><span class="linenos"> 543</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Mul</span><span class="p">):</span> +</span><span id="L-544"><a href="#L-544"><span class="linenos"> 544</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="o">.</span><span class="n">number</span><span class="p">(</span><span class="n">a</span> <span class="o">*</span> <span class="n">b</span><span class="p">)</span> +</span><span id="L-545"><a href="#L-545"><span class="linenos"> 545</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Div</span><span class="p">):</span> +</span><span id="L-546"><a href="#L-546"><span class="linenos"> 546</span></a> <span class="c1"># engines have differing int div behavior so intdiv is not safe</span> +</span><span id="L-547"><a href="#L-547"><span class="linenos"> 547</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="nb">int</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="nb">int</span><span class="p">):</span> +</span><span id="L-548"><a href="#L-548"><span class="linenos"> 548</span></a> <span class="k">return</span> <span class="kc">None</span> +</span><span id="L-549"><a href="#L-549"><span class="linenos"> 549</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="o">.</span><span class="n">number</span><span class="p">(</span><span class="n">a</span> <span class="o">/</span> <span class="n">b</span><span class="p">)</span> +</span><span id="L-550"><a href="#L-550"><span class="linenos"> 550</span></a> +</span><span id="L-551"><a href="#L-551"><span class="linenos"> 551</span></a> <span class="n">boolean</span> <span class="o">=</span> <span class="n">eval_boolean</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">)</span> +</span><span id="L-552"><a href="#L-552"><span class="linenos"> 552</span></a> +</span><span id="L-553"><a href="#L-553"><span class="linenos"> 553</span></a> <span class="k">if</span> <span class="n">boolean</span><span class="p">:</span> +</span><span id="L-554"><a href="#L-554"><span class="linenos"> 554</span></a> <span class="k">return</span> <span class="n">boolean</span> +</span><span id="L-555"><a href="#L-555"><span class="linenos"> 555</span></a> <span class="k">elif</span> <span class="n">a</span><span class="o">.</span><span class="n">is_string</span> <span class="ow">and</span> <span class="n">b</span><span class="o">.</span><span class="n">is_string</span><span class="p">:</span> +</span><span id="L-556"><a href="#L-556"><span class="linenos"> 556</span></a> <span class="n">boolean</span> <span class="o">=</span> <span class="n">eval_boolean</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">a</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">b</span><span class="o">.</span><span class="n">this</span><span class="p">)</span> +</span><span id="L-557"><a href="#L-557"><span class="linenos"> 557</span></a> +</span><span id="L-558"><a href="#L-558"><span class="linenos"> 558</span></a> <span class="k">if</span> <span class="n">boolean</span><span class="p">:</span> +</span><span id="L-559"><a href="#L-559"><span class="linenos"> 559</span></a> <span class="k">return</span> <span class="n">boolean</span> +</span><span id="L-560"><a href="#L-560"><span class="linenos"> 560</span></a> <span class="k">elif</span> <span class="n">_is_date_literal</span><span class="p">(</span><span class="n">a</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Interval</span><span class="p">):</span> +</span><span id="L-561"><a href="#L-561"><span class="linenos"> 561</span></a> <span class="n">a</span><span class="p">,</span> <span class="n">b</span> <span class="o">=</span> <span class="n">extract_date</span><span class="p">(</span><span class="n">a</span><span class="p">),</span> <span class="n">extract_interval</span><span class="p">(</span><span class="n">b</span><span class="p">)</span> +</span><span id="L-562"><a href="#L-562"><span class="linenos"> 562</span></a> <span class="k">if</span> <span class="n">a</span> <span class="ow">and</span> <span class="n">b</span><span class="p">:</span> +</span><span id="L-563"><a href="#L-563"><span class="linenos"> 563</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">):</span> +</span><span id="L-564"><a href="#L-564"><span class="linenos"> 564</span></a> <span class="k">return</span> <span class="n">date_literal</span><span class="p">(</span><span class="n">a</span> <span class="o">+</span> <span class="n">b</span><span class="p">)</span> +</span><span id="L-565"><a href="#L-565"><span class="linenos"> 565</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Sub</span><span class="p">):</span> +</span><span id="L-566"><a href="#L-566"><span class="linenos"> 566</span></a> <span class="k">return</span> <span class="n">date_literal</span><span class="p">(</span><span class="n">a</span> <span class="o">-</span> <span class="n">b</span><span class="p">)</span> +</span><span id="L-567"><a href="#L-567"><span class="linenos"> 567</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Interval</span><span class="p">)</span> <span class="ow">and</span> <span class="n">_is_date_literal</span><span class="p">(</span><span class="n">b</span><span class="p">):</span> +</span><span id="L-568"><a href="#L-568"><span class="linenos"> 568</span></a> <span class="n">a</span><span class="p">,</span> <span class="n">b</span> <span class="o">=</span> <span class="n">extract_interval</span><span class="p">(</span><span class="n">a</span><span class="p">),</span> <span class="n">extract_date</span><span class="p">(</span><span class="n">b</span><span class="p">)</span> +</span><span id="L-569"><a href="#L-569"><span class="linenos"> 569</span></a> <span class="c1"># you cannot subtract a date from an interval</span> +</span><span id="L-570"><a href="#L-570"><span class="linenos"> 570</span></a> <span class="k">if</span> <span class="n">a</span> <span class="ow">and</span> <span class="n">b</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">):</span> +</span><span id="L-571"><a href="#L-571"><span class="linenos"> 571</span></a> <span class="k">return</span> <span class="n">date_literal</span><span class="p">(</span><span class="n">a</span> <span class="o">+</span> <span class="n">b</span><span class="p">)</span> +</span><span id="L-572"><a href="#L-572"><span class="linenos"> 572</span></a> +</span><span id="L-573"><a href="#L-573"><span class="linenos"> 573</span></a> <span class="k">return</span> <span class="kc">None</span> +</span><span id="L-574"><a href="#L-574"><span class="linenos"> 574</span></a> </span><span id="L-575"><a href="#L-575"><span class="linenos"> 575</span></a> -</span><span id="L-576"><a href="#L-576"><span class="linenos"> 576</span></a> <span class="n">this</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span> -</span><span id="L-577"><a href="#L-577"><span class="linenos"> 577</span></a> <span class="n">parent</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">parent</span> -</span><span id="L-578"><a href="#L-578"><span class="linenos"> 578</span></a> -</span><span id="L-579"><a href="#L-579"><span class="linenos"> 579</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Select</span><span class="p">)</span> <span class="ow">and</span> <span class="p">(</span> -</span><span id="L-580"><a href="#L-580"><span class="linenos"> 580</span></a> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Condition</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Binary</span><span class="p">))</span> -</span><span id="L-581"><a href="#L-581"><span class="linenos"> 581</span></a> <span class="ow">or</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Paren</span><span class="p">)</span> -</span><span id="L-582"><a href="#L-582"><span class="linenos"> 582</span></a> <span class="ow">or</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Binary</span><span class="p">)</span> -</span><span id="L-583"><a href="#L-583"><span class="linenos"> 583</span></a> <span class="ow">or</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Predicate</span><span class="p">)</span> <span class="ow">and</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Predicate</span><span class="p">))</span> -</span><span id="L-584"><a href="#L-584"><span class="linenos"> 584</span></a> <span class="ow">or</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">))</span> -</span><span id="L-585"><a href="#L-585"><span class="linenos"> 585</span></a> <span class="ow">or</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Mul</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Mul</span><span class="p">))</span> -</span><span id="L-586"><a href="#L-586"><span class="linenos"> 586</span></a> <span class="ow">or</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Mul</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Sub</span><span class="p">)))</span> -</span><span id="L-587"><a href="#L-587"><span class="linenos"> 587</span></a> <span class="p">):</span> -</span><span id="L-588"><a href="#L-588"><span class="linenos"> 588</span></a> <span class="k">return</span> <span class="n">this</span> -</span><span id="L-589"><a href="#L-589"><span class="linenos"> 589</span></a> <span class="k">return</span> <span class="n">expression</span> -</span><span id="L-590"><a href="#L-590"><span class="linenos"> 590</span></a> -</span><span id="L-591"><a href="#L-591"><span class="linenos"> 591</span></a> -</span><span id="L-592"><a href="#L-592"><span class="linenos"> 592</span></a><span class="n">CONSTANTS</span> <span class="o">=</span> <span class="p">(</span> -</span><span id="L-593"><a href="#L-593"><span class="linenos"> 593</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="p">,</span> -</span><span id="L-594"><a href="#L-594"><span class="linenos"> 594</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Boolean</span><span class="p">,</span> -</span><span id="L-595"><a href="#L-595"><span class="linenos"> 595</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Null</span><span class="p">,</span> -</span><span id="L-596"><a href="#L-596"><span class="linenos"> 596</span></a><span class="p">)</span> -</span><span id="L-597"><a href="#L-597"><span class="linenos"> 597</span></a> -</span><span id="L-598"><a href="#L-598"><span class="linenos"> 598</span></a> -</span><span id="L-599"><a href="#L-599"><span class="linenos"> 599</span></a><span class="k">def</span> <span class="nf">simplify_coalesce</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span> -</span><span id="L-600"><a href="#L-600"><span class="linenos"> 600</span></a> <span class="c1"># COALESCE(x) -> x</span> -</span><span id="L-601"><a href="#L-601"><span class="linenos"> 601</span></a> <span class="k">if</span> <span class="p">(</span> -</span><span id="L-602"><a href="#L-602"><span class="linenos"> 602</span></a> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Coalesce</span><span class="p">)</span> -</span><span id="L-603"><a href="#L-603"><span class="linenos"> 603</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">expressions</span> -</span><span id="L-604"><a href="#L-604"><span class="linenos"> 604</span></a> <span class="c1"># COALESCE is also used as a Spark partitioning hint</span> -</span><span id="L-605"><a href="#L-605"><span class="linenos"> 605</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Hint</span><span class="p">)</span> -</span><span id="L-606"><a href="#L-606"><span class="linenos"> 606</span></a> <span class="p">):</span> -</span><span id="L-607"><a href="#L-607"><span class="linenos"> 607</span></a> <span class="k">return</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span> -</span><span id="L-608"><a href="#L-608"><span class="linenos"> 608</span></a> -</span><span id="L-609"><a href="#L-609"><span class="linenos"> 609</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">COMPARISONS</span><span class="p">):</span> -</span><span id="L-610"><a href="#L-610"><span class="linenos"> 610</span></a> <span class="k">return</span> <span class="n">expression</span> -</span><span id="L-611"><a href="#L-611"><span class="linenos"> 611</span></a> -</span><span id="L-612"><a href="#L-612"><span class="linenos"> 612</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Coalesce</span><span class="p">):</span> -</span><span id="L-613"><a href="#L-613"><span class="linenos"> 613</span></a> <span class="n">coalesce</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">left</span> -</span><span id="L-614"><a href="#L-614"><span class="linenos"> 614</span></a> <span class="n">other</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">right</span> -</span><span id="L-615"><a href="#L-615"><span class="linenos"> 615</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">right</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Coalesce</span><span class="p">):</span> -</span><span id="L-616"><a href="#L-616"><span class="linenos"> 616</span></a> <span class="n">coalesce</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">right</span> -</span><span id="L-617"><a href="#L-617"><span class="linenos"> 617</span></a> <span class="n">other</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">left</span> -</span><span id="L-618"><a href="#L-618"><span class="linenos"> 618</span></a> <span class="k">else</span><span class="p">:</span> -</span><span id="L-619"><a href="#L-619"><span class="linenos"> 619</span></a> <span class="k">return</span> <span class="n">expression</span> -</span><span id="L-620"><a href="#L-620"><span class="linenos"> 620</span></a> -</span><span id="L-621"><a href="#L-621"><span class="linenos"> 621</span></a> <span class="c1"># This transformation is valid for non-constants,</span> -</span><span id="L-622"><a href="#L-622"><span class="linenos"> 622</span></a> <span class="c1"># but it really only does anything if they are both constants.</span> -</span><span id="L-623"><a href="#L-623"><span class="linenos"> 623</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">other</span><span class="p">,</span> <span class="n">CONSTANTS</span><span class="p">):</span> -</span><span id="L-624"><a href="#L-624"><span class="linenos"> 624</span></a> <span class="k">return</span> <span class="n">expression</span> -</span><span id="L-625"><a href="#L-625"><span class="linenos"> 625</span></a> -</span><span id="L-626"><a href="#L-626"><span class="linenos"> 626</span></a> <span class="c1"># Find the first constant arg</span> -</span><span id="L-627"><a href="#L-627"><span class="linenos"> 627</span></a> <span class="k">for</span> <span class="n">arg_index</span><span class="p">,</span> <span class="n">arg</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="n">coalesce</span><span class="o">.</span><span class="n">expressions</span><span class="p">):</span> -</span><span id="L-628"><a href="#L-628"><span class="linenos"> 628</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">arg</span><span class="p">,</span> <span class="n">CONSTANTS</span><span class="p">):</span> -</span><span id="L-629"><a href="#L-629"><span class="linenos"> 629</span></a> <span class="k">break</span> -</span><span id="L-630"><a href="#L-630"><span class="linenos"> 630</span></a> <span class="k">else</span><span class="p">:</span> -</span><span id="L-631"><a href="#L-631"><span class="linenos"> 631</span></a> <span class="k">return</span> <span class="n">expression</span> -</span><span id="L-632"><a href="#L-632"><span class="linenos"> 632</span></a> -</span><span id="L-633"><a href="#L-633"><span class="linenos"> 633</span></a> <span class="n">coalesce</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"expressions"</span><span class="p">,</span> <span class="n">coalesce</span><span class="o">.</span><span class="n">expressions</span><span class="p">[:</span><span class="n">arg_index</span><span class="p">])</span> -</span><span id="L-634"><a href="#L-634"><span class="linenos"> 634</span></a> -</span><span id="L-635"><a href="#L-635"><span class="linenos"> 635</span></a> <span class="c1"># Remove the COALESCE function. This is an optimization, skipping a simplify iteration,</span> -</span><span id="L-636"><a href="#L-636"><span class="linenos"> 636</span></a> <span class="c1"># since we already remove COALESCE at the top of this function.</span> -</span><span id="L-637"><a href="#L-637"><span class="linenos"> 637</span></a> <span class="n">coalesce</span> <span class="o">=</span> <span class="n">coalesce</span> <span class="k">if</span> <span class="n">coalesce</span><span class="o">.</span><span class="n">expressions</span> <span class="k">else</span> <span class="n">coalesce</span><span class="o">.</span><span class="n">this</span> +</span><span id="L-576"><a href="#L-576"><span class="linenos"> 576</span></a><span class="k">def</span> <span class="nf">simplify_parens</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span> +</span><span id="L-577"><a href="#L-577"><span class="linenos"> 577</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Paren</span><span class="p">):</span> +</span><span id="L-578"><a href="#L-578"><span class="linenos"> 578</span></a> <span class="k">return</span> <span class="n">expression</span> +</span><span id="L-579"><a href="#L-579"><span class="linenos"> 579</span></a> +</span><span id="L-580"><a href="#L-580"><span class="linenos"> 580</span></a> <span class="n">this</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span> +</span><span id="L-581"><a href="#L-581"><span class="linenos"> 581</span></a> <span class="n">parent</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">parent</span> +</span><span id="L-582"><a href="#L-582"><span class="linenos"> 582</span></a> +</span><span id="L-583"><a href="#L-583"><span class="linenos"> 583</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Select</span><span class="p">)</span> <span class="ow">and</span> <span class="p">(</span> +</span><span id="L-584"><a href="#L-584"><span class="linenos"> 584</span></a> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Condition</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Binary</span><span class="p">))</span> +</span><span id="L-585"><a href="#L-585"><span class="linenos"> 585</span></a> <span class="ow">or</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Paren</span><span class="p">)</span> +</span><span id="L-586"><a href="#L-586"><span class="linenos"> 586</span></a> <span class="ow">or</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Binary</span><span class="p">)</span> +</span><span id="L-587"><a href="#L-587"><span class="linenos"> 587</span></a> <span class="ow">or</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Predicate</span><span class="p">)</span> <span class="ow">and</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Predicate</span><span class="p">))</span> +</span><span id="L-588"><a href="#L-588"><span class="linenos"> 588</span></a> <span class="ow">or</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">))</span> +</span><span id="L-589"><a href="#L-589"><span class="linenos"> 589</span></a> <span class="ow">or</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Mul</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Mul</span><span class="p">))</span> +</span><span id="L-590"><a href="#L-590"><span class="linenos"> 590</span></a> <span class="ow">or</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Mul</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Sub</span><span class="p">)))</span> +</span><span id="L-591"><a href="#L-591"><span class="linenos"> 591</span></a> <span class="p">):</span> +</span><span id="L-592"><a href="#L-592"><span class="linenos"> 592</span></a> <span class="k">return</span> <span class="n">this</span> +</span><span id="L-593"><a href="#L-593"><span class="linenos"> 593</span></a> <span class="k">return</span> <span class="n">expression</span> +</span><span id="L-594"><a href="#L-594"><span class="linenos"> 594</span></a> +</span><span id="L-595"><a href="#L-595"><span class="linenos"> 595</span></a> +</span><span id="L-596"><a href="#L-596"><span class="linenos"> 596</span></a><span class="n">CONSTANTS</span> <span class="o">=</span> <span class="p">(</span> +</span><span id="L-597"><a href="#L-597"><span class="linenos"> 597</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="p">,</span> +</span><span id="L-598"><a href="#L-598"><span class="linenos"> 598</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Boolean</span><span class="p">,</span> +</span><span id="L-599"><a href="#L-599"><span class="linenos"> 599</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Null</span><span class="p">,</span> +</span><span id="L-600"><a href="#L-600"><span class="linenos"> 600</span></a><span class="p">)</span> +</span><span id="L-601"><a href="#L-601"><span class="linenos"> 601</span></a> +</span><span id="L-602"><a href="#L-602"><span class="linenos"> 602</span></a> +</span><span id="L-603"><a href="#L-603"><span class="linenos"> 603</span></a><span class="k">def</span> <span class="nf">simplify_coalesce</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span> +</span><span id="L-604"><a href="#L-604"><span class="linenos"> 604</span></a> <span class="c1"># COALESCE(x) -> x</span> +</span><span id="L-605"><a href="#L-605"><span class="linenos"> 605</span></a> <span class="k">if</span> <span class="p">(</span> +</span><span id="L-606"><a href="#L-606"><span class="linenos"> 606</span></a> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Coalesce</span><span class="p">)</span> +</span><span id="L-607"><a href="#L-607"><span class="linenos"> 607</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">expressions</span> +</span><span id="L-608"><a href="#L-608"><span class="linenos"> 608</span></a> <span class="c1"># COALESCE is also used as a Spark partitioning hint</span> +</span><span id="L-609"><a href="#L-609"><span class="linenos"> 609</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Hint</span><span class="p">)</span> +</span><span id="L-610"><a href="#L-610"><span class="linenos"> 610</span></a> <span class="p">):</span> +</span><span id="L-611"><a href="#L-611"><span class="linenos"> 611</span></a> <span class="k">return</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span> +</span><span id="L-612"><a href="#L-612"><span class="linenos"> 612</span></a> +</span><span id="L-613"><a href="#L-613"><span class="linenos"> 613</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">COMPARISONS</span><span class="p">):</span> +</span><span id="L-614"><a href="#L-614"><span class="linenos"> 614</span></a> <span class="k">return</span> <span class="n">expression</span> +</span><span id="L-615"><a href="#L-615"><span class="linenos"> 615</span></a> +</span><span id="L-616"><a href="#L-616"><span class="linenos"> 616</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Coalesce</span><span class="p">):</span> +</span><span id="L-617"><a href="#L-617"><span class="linenos"> 617</span></a> <span class="n">coalesce</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">left</span> +</span><span id="L-618"><a href="#L-618"><span class="linenos"> 618</span></a> <span class="n">other</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">right</span> +</span><span id="L-619"><a href="#L-619"><span class="linenos"> 619</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">right</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Coalesce</span><span class="p">):</span> +</span><span id="L-620"><a href="#L-620"><span class="linenos"> 620</span></a> <span class="n">coalesce</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">right</span> +</span><span id="L-621"><a href="#L-621"><span class="linenos"> 621</span></a> <span class="n">other</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">left</span> +</span><span id="L-622"><a href="#L-622"><span class="linenos"> 622</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="L-623"><a href="#L-623"><span class="linenos"> 623</span></a> <span class="k">return</span> <span class="n">expression</span> +</span><span id="L-624"><a href="#L-624"><span class="linenos"> 624</span></a> +</span><span id="L-625"><a href="#L-625"><span class="linenos"> 625</span></a> <span class="c1"># This transformation is valid for non-constants,</span> +</span><span id="L-626"><a href="#L-626"><span class="linenos"> 626</span></a> <span class="c1"># but it really only does anything if they are both constants.</span> +</span><span id="L-627"><a href="#L-627"><span class="linenos"> 627</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">other</span><span class="p">,</span> <span class="n">CONSTANTS</span><span class="p">):</span> +</span><span id="L-628"><a href="#L-628"><span class="linenos"> 628</span></a> <span class="k">return</span> <span class="n">expression</span> +</span><span id="L-629"><a href="#L-629"><span class="linenos"> 629</span></a> +</span><span id="L-630"><a href="#L-630"><span class="linenos"> 630</span></a> <span class="c1"># Find the first constant arg</span> +</span><span id="L-631"><a href="#L-631"><span class="linenos"> 631</span></a> <span class="k">for</span> <span class="n">arg_index</span><span class="p">,</span> <span class="n">arg</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="n">coalesce</span><span class="o">.</span><span class="n">expressions</span><span class="p">):</span> +</span><span id="L-632"><a href="#L-632"><span class="linenos"> 632</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">arg</span><span class="p">,</span> <span class="n">CONSTANTS</span><span class="p">):</span> +</span><span id="L-633"><a href="#L-633"><span class="linenos"> 633</span></a> <span class="k">break</span> +</span><span id="L-634"><a href="#L-634"><span class="linenos"> 634</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="L-635"><a href="#L-635"><span class="linenos"> 635</span></a> <span class="k">return</span> <span class="n">expression</span> +</span><span id="L-636"><a href="#L-636"><span class="linenos"> 636</span></a> +</span><span id="L-637"><a href="#L-637"><span class="linenos"> 637</span></a> <span class="n">coalesce</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"expressions"</span><span class="p">,</span> <span class="n">coalesce</span><span class="o">.</span><span class="n">expressions</span><span class="p">[:</span><span class="n">arg_index</span><span class="p">])</span> </span><span id="L-638"><a href="#L-638"><span class="linenos"> 638</span></a> -</span><span id="L-639"><a href="#L-639"><span class="linenos"> 639</span></a> <span class="c1"># This expression is more complex than when we started, but it will get simplified further</span> -</span><span id="L-640"><a href="#L-640"><span class="linenos"> 640</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">paren</span><span class="p">(</span> -</span><span id="L-641"><a href="#L-641"><span class="linenos"> 641</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">or_</span><span class="p">(</span> -</span><span id="L-642"><a href="#L-642"><span class="linenos"> 642</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">and_</span><span class="p">(</span> -</span><span id="L-643"><a href="#L-643"><span class="linenos"> 643</span></a> <span class="n">coalesce</span><span class="o">.</span><span class="n">is_</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">())</span><span class="o">.</span><span class="n">not_</span><span class="p">(</span><span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">),</span> -</span><span id="L-644"><a href="#L-644"><span class="linenos"> 644</span></a> <span class="n">expression</span><span class="o">.</span><span class="n">copy</span><span class="p">(),</span> -</span><span id="L-645"><a href="#L-645"><span class="linenos"> 645</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> -</span><span id="L-646"><a href="#L-646"><span class="linenos"> 646</span></a> <span class="p">),</span> -</span><span id="L-647"><a href="#L-647"><span class="linenos"> 647</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">and_</span><span class="p">(</span> -</span><span id="L-648"><a href="#L-648"><span class="linenos"> 648</span></a> <span class="n">coalesce</span><span class="o">.</span><span class="n">is_</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()),</span> -</span><span id="L-649"><a href="#L-649"><span class="linenos"> 649</span></a> <span class="nb">type</span><span class="p">(</span><span class="n">expression</span><span class="p">)(</span><span class="n">this</span><span class="o">=</span><span class="n">arg</span><span class="o">.</span><span class="n">copy</span><span class="p">(),</span> <span class="n">expression</span><span class="o">=</span><span class="n">other</span><span class="o">.</span><span class="n">copy</span><span class="p">()),</span> -</span><span id="L-650"><a href="#L-650"><span class="linenos"> 650</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> -</span><span id="L-651"><a href="#L-651"><span class="linenos"> 651</span></a> <span class="p">),</span> -</span><span id="L-652"><a href="#L-652"><span class="linenos"> 652</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> -</span><span id="L-653"><a href="#L-653"><span class="linenos"> 653</span></a> <span class="p">)</span> -</span><span id="L-654"><a href="#L-654"><span class="linenos"> 654</span></a> <span class="p">)</span> -</span><span id="L-655"><a href="#L-655"><span class="linenos"> 655</span></a> -</span><span id="L-656"><a href="#L-656"><span class="linenos"> 656</span></a> -</span><span id="L-657"><a href="#L-657"><span class="linenos"> 657</span></a><span class="n">CONCATS</span> <span class="o">=</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Concat</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">DPipe</span><span class="p">)</span> -</span><span id="L-658"><a href="#L-658"><span class="linenos"> 658</span></a><span class="n">SAFE_CONCATS</span> <span class="o">=</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">SafeConcat</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">SafeDPipe</span><span class="p">)</span> +</span><span id="L-639"><a href="#L-639"><span class="linenos"> 639</span></a> <span class="c1"># Remove the COALESCE function. This is an optimization, skipping a simplify iteration,</span> +</span><span id="L-640"><a href="#L-640"><span class="linenos"> 640</span></a> <span class="c1"># since we already remove COALESCE at the top of this function.</span> +</span><span id="L-641"><a href="#L-641"><span class="linenos"> 641</span></a> <span class="n">coalesce</span> <span class="o">=</span> <span class="n">coalesce</span> <span class="k">if</span> <span class="n">coalesce</span><span class="o">.</span><span class="n">expressions</span> <span class="k">else</span> <span class="n">coalesce</span><span class="o">.</span><span class="n">this</span> +</span><span id="L-642"><a href="#L-642"><span class="linenos"> 642</span></a> +</span><span id="L-643"><a href="#L-643"><span class="linenos"> 643</span></a> <span class="c1"># This expression is more complex than when we started, but it will get simplified further</span> +</span><span id="L-644"><a href="#L-644"><span class="linenos"> 644</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">paren</span><span class="p">(</span> +</span><span id="L-645"><a href="#L-645"><span class="linenos"> 645</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">or_</span><span class="p">(</span> +</span><span id="L-646"><a href="#L-646"><span class="linenos"> 646</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">and_</span><span class="p">(</span> +</span><span id="L-647"><a href="#L-647"><span class="linenos"> 647</span></a> <span class="n">coalesce</span><span class="o">.</span><span class="n">is_</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">())</span><span class="o">.</span><span class="n">not_</span><span class="p">(</span><span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">),</span> +</span><span id="L-648"><a href="#L-648"><span class="linenos"> 648</span></a> <span class="n">expression</span><span class="o">.</span><span class="n">copy</span><span class="p">(),</span> +</span><span id="L-649"><a href="#L-649"><span class="linenos"> 649</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> +</span><span id="L-650"><a href="#L-650"><span class="linenos"> 650</span></a> <span class="p">),</span> +</span><span id="L-651"><a href="#L-651"><span class="linenos"> 651</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">and_</span><span class="p">(</span> +</span><span id="L-652"><a href="#L-652"><span class="linenos"> 652</span></a> <span class="n">coalesce</span><span class="o">.</span><span class="n">is_</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()),</span> +</span><span id="L-653"><a href="#L-653"><span class="linenos"> 653</span></a> <span class="nb">type</span><span class="p">(</span><span class="n">expression</span><span class="p">)(</span><span class="n">this</span><span class="o">=</span><span class="n">arg</span><span class="o">.</span><span class="n">copy</span><span class="p">(),</span> <span class="n">expression</span><span class="o">=</span><span class="n">other</span><span class="o">.</span><span class="n">copy</span><span class="p">()),</span> +</span><span id="L-654"><a href="#L-654"><span class="linenos"> 654</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> +</span><span id="L-655"><a href="#L-655"><span class="linenos"> 655</span></a> <span class="p">),</span> +</span><span id="L-656"><a href="#L-656"><span class="linenos"> 656</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> +</span><span id="L-657"><a href="#L-657"><span class="linenos"> 657</span></a> <span class="p">)</span> +</span><span id="L-658"><a href="#L-658"><span class="linenos"> 658</span></a> <span class="p">)</span> </span><span id="L-659"><a href="#L-659"><span class="linenos"> 659</span></a> </span><span id="L-660"><a href="#L-660"><span class="linenos"> 660</span></a> -</span><span id="L-661"><a href="#L-661"><span class="linenos"> 661</span></a><span class="k">def</span> <span class="nf">simplify_concat</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span> -</span><span id="L-662"><a href="#L-662"><span class="linenos"> 662</span></a><span class="w"> </span><span class="sd">"""Reduces all groups that contain string literals by concatenating them."""</span> -</span><span id="L-663"><a href="#L-663"><span class="linenos"> 663</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">CONCATS</span><span class="p">)</span> <span class="ow">or</span> <span class="p">(</span> -</span><span id="L-664"><a href="#L-664"><span class="linenos"> 664</span></a> <span class="c1"># We can't reduce a CONCAT_WS call if we don't statically know the separator</span> -</span><span id="L-665"><a href="#L-665"><span class="linenos"> 665</span></a> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">ConcatWs</span><span class="p">)</span> -</span><span id="L-666"><a href="#L-666"><span class="linenos"> 666</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">expressions</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">is_string</span> -</span><span id="L-667"><a href="#L-667"><span class="linenos"> 667</span></a> <span class="p">):</span> -</span><span id="L-668"><a href="#L-668"><span class="linenos"> 668</span></a> <span class="k">return</span> <span class="n">expression</span> -</span><span id="L-669"><a href="#L-669"><span class="linenos"> 669</span></a> -</span><span id="L-670"><a href="#L-670"><span class="linenos"> 670</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">ConcatWs</span><span class="p">):</span> -</span><span id="L-671"><a href="#L-671"><span class="linenos"> 671</span></a> <span class="n">sep_expr</span><span class="p">,</span> <span class="o">*</span><span class="n">expressions</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">expressions</span> -</span><span id="L-672"><a href="#L-672"><span class="linenos"> 672</span></a> <span class="n">sep</span> <span class="o">=</span> <span class="n">sep_expr</span><span class="o">.</span><span class="n">name</span> -</span><span id="L-673"><a href="#L-673"><span class="linenos"> 673</span></a> <span class="n">concat_type</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">ConcatWs</span> -</span><span id="L-674"><a href="#L-674"><span class="linenos"> 674</span></a> <span class="k">else</span><span class="p">:</span> -</span><span id="L-675"><a href="#L-675"><span class="linenos"> 675</span></a> <span class="n">expressions</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">expressions</span> -</span><span id="L-676"><a href="#L-676"><span class="linenos"> 676</span></a> <span class="n">sep</span> <span class="o">=</span> <span class="s2">""</span> -</span><span id="L-677"><a href="#L-677"><span class="linenos"> 677</span></a> <span class="n">concat_type</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">SafeConcat</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">SAFE_CONCATS</span><span class="p">)</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">Concat</span> -</span><span id="L-678"><a href="#L-678"><span class="linenos"> 678</span></a> -</span><span id="L-679"><a href="#L-679"><span class="linenos"> 679</span></a> <span class="n">new_args</span> <span class="o">=</span> <span class="p">[]</span> -</span><span id="L-680"><a href="#L-680"><span class="linenos"> 680</span></a> <span class="k">for</span> <span class="n">is_string_group</span><span class="p">,</span> <span class="n">group</span> <span class="ow">in</span> <span class="n">itertools</span><span class="o">.</span><span class="n">groupby</span><span class="p">(</span> -</span><span id="L-681"><a href="#L-681"><span class="linenos"> 681</span></a> <span class="n">expressions</span> <span class="ow">or</span> <span class="n">expression</span><span class="o">.</span><span class="n">flatten</span><span class="p">(),</span> <span class="k">lambda</span> <span class="n">e</span><span class="p">:</span> <span class="n">e</span><span class="o">.</span><span class="n">is_string</span> -</span><span id="L-682"><a href="#L-682"><span class="linenos"> 682</span></a> <span class="p">):</span> -</span><span id="L-683"><a href="#L-683"><span class="linenos"> 683</span></a> <span class="k">if</span> <span class="n">is_string_group</span><span class="p">:</span> -</span><span id="L-684"><a href="#L-684"><span class="linenos"> 684</span></a> <span class="n">new_args</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="o">.</span><span class="n">string</span><span class="p">(</span><span class="n">sep</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">string</span><span class="o">.</span><span class="n">name</span> <span class="k">for</span> <span class="n">string</span> <span class="ow">in</span> <span class="n">group</span><span class="p">)))</span> -</span><span id="L-685"><a href="#L-685"><span class="linenos"> 685</span></a> <span class="k">else</span><span class="p">:</span> -</span><span id="L-686"><a href="#L-686"><span class="linenos"> 686</span></a> <span class="n">new_args</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span><span class="n">group</span><span class="p">)</span> -</span><span id="L-687"><a href="#L-687"><span class="linenos"> 687</span></a> -</span><span id="L-688"><a href="#L-688"><span class="linenos"> 688</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">new_args</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span> <span class="ow">and</span> <span class="n">new_args</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">is_string</span><span class="p">:</span> -</span><span id="L-689"><a href="#L-689"><span class="linenos"> 689</span></a> <span class="k">return</span> <span class="n">new_args</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> -</span><span id="L-690"><a href="#L-690"><span class="linenos"> 690</span></a> -</span><span id="L-691"><a href="#L-691"><span class="linenos"> 691</span></a> <span class="k">if</span> <span class="n">concat_type</span> <span class="ow">is</span> <span class="n">exp</span><span class="o">.</span><span class="n">ConcatWs</span><span class="p">:</span> -</span><span id="L-692"><a href="#L-692"><span class="linenos"> 692</span></a> <span class="n">new_args</span> <span class="o">=</span> <span class="p">[</span><span class="n">sep_expr</span><span class="p">]</span> <span class="o">+</span> <span class="n">new_args</span> -</span><span id="L-693"><a href="#L-693"><span class="linenos"> 693</span></a> -</span><span id="L-694"><a href="#L-694"><span class="linenos"> 694</span></a> <span class="k">return</span> <span class="n">concat_type</span><span class="p">(</span><span class="n">expressions</span><span class="o">=</span><span class="n">new_args</span><span class="p">)</span> -</span><span id="L-695"><a href="#L-695"><span class="linenos"> 695</span></a> -</span><span id="L-696"><a href="#L-696"><span class="linenos"> 696</span></a> -</span><span id="L-697"><a href="#L-697"><span class="linenos"> 697</span></a><span class="n">DateRange</span> <span class="o">=</span> <span class="n">t</span><span class="o">.</span><span class="n">Tuple</span><span class="p">[</span><span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">]</span> -</span><span id="L-698"><a href="#L-698"><span class="linenos"> 698</span></a> +</span><span id="L-661"><a href="#L-661"><span class="linenos"> 661</span></a><span class="n">CONCATS</span> <span class="o">=</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Concat</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">DPipe</span><span class="p">)</span> +</span><span id="L-662"><a href="#L-662"><span class="linenos"> 662</span></a><span class="n">SAFE_CONCATS</span> <span class="o">=</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">SafeConcat</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">SafeDPipe</span><span class="p">)</span> +</span><span id="L-663"><a href="#L-663"><span class="linenos"> 663</span></a> +</span><span id="L-664"><a href="#L-664"><span class="linenos"> 664</span></a> +</span><span id="L-665"><a href="#L-665"><span class="linenos"> 665</span></a><span class="k">def</span> <span class="nf">simplify_concat</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span> +</span><span id="L-666"><a href="#L-666"><span class="linenos"> 666</span></a><span class="w"> </span><span class="sd">"""Reduces all groups that contain string literals by concatenating them."""</span> +</span><span id="L-667"><a href="#L-667"><span class="linenos"> 667</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">CONCATS</span><span class="p">)</span> <span class="ow">or</span> <span class="p">(</span> +</span><span id="L-668"><a href="#L-668"><span class="linenos"> 668</span></a> <span class="c1"># We can't reduce a CONCAT_WS call if we don't statically know the separator</span> +</span><span id="L-669"><a href="#L-669"><span class="linenos"> 669</span></a> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">ConcatWs</span><span class="p">)</span> +</span><span id="L-670"><a href="#L-670"><span class="linenos"> 670</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">expressions</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">is_string</span> +</span><span id="L-671"><a href="#L-671"><span class="linenos"> 671</span></a> <span class="p">):</span> +</span><span id="L-672"><a href="#L-672"><span class="linenos"> 672</span></a> <span class="k">return</span> <span class="n">expression</span> +</span><span id="L-673"><a href="#L-673"><span class="linenos"> 673</span></a> +</span><span id="L-674"><a href="#L-674"><span class="linenos"> 674</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">ConcatWs</span><span class="p">):</span> +</span><span id="L-675"><a href="#L-675"><span class="linenos"> 675</span></a> <span class="n">sep_expr</span><span class="p">,</span> <span class="o">*</span><span class="n">expressions</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">expressions</span> +</span><span id="L-676"><a href="#L-676"><span class="linenos"> 676</span></a> <span class="n">sep</span> <span class="o">=</span> <span class="n">sep_expr</span><span class="o">.</span><span class="n">name</span> +</span><span id="L-677"><a href="#L-677"><span class="linenos"> 677</span></a> <span class="n">concat_type</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">ConcatWs</span> +</span><span id="L-678"><a href="#L-678"><span class="linenos"> 678</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="L-679"><a href="#L-679"><span class="linenos"> 679</span></a> <span class="n">expressions</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">expressions</span> +</span><span id="L-680"><a href="#L-680"><span class="linenos"> 680</span></a> <span class="n">sep</span> <span class="o">=</span> <span class="s2">""</span> +</span><span id="L-681"><a href="#L-681"><span class="linenos"> 681</span></a> <span class="n">concat_type</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">SafeConcat</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">SAFE_CONCATS</span><span class="p">)</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">Concat</span> +</span><span id="L-682"><a href="#L-682"><span class="linenos"> 682</span></a> +</span><span id="L-683"><a href="#L-683"><span class="linenos"> 683</span></a> <span class="n">new_args</span> <span class="o">=</span> <span class="p">[]</span> +</span><span id="L-684"><a href="#L-684"><span class="linenos"> 684</span></a> <span class="k">for</span> <span class="n">is_string_group</span><span class="p">,</span> <span class="n">group</span> <span class="ow">in</span> <span class="n">itertools</span><span class="o">.</span><span class="n">groupby</span><span class="p">(</span> +</span><span id="L-685"><a href="#L-685"><span class="linenos"> 685</span></a> <span class="n">expressions</span> <span class="ow">or</span> <span class="n">expression</span><span class="o">.</span><span class="n">flatten</span><span class="p">(),</span> <span class="k">lambda</span> <span class="n">e</span><span class="p">:</span> <span class="n">e</span><span class="o">.</span><span class="n">is_string</span> +</span><span id="L-686"><a href="#L-686"><span class="linenos"> 686</span></a> <span class="p">):</span> +</span><span id="L-687"><a href="#L-687"><span class="linenos"> 687</span></a> <span class="k">if</span> <span class="n">is_string_group</span><span class="p">:</span> +</span><span id="L-688"><a href="#L-688"><span class="linenos"> 688</span></a> <span class="n">new_args</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="o">.</span><span class="n">string</span><span class="p">(</span><span class="n">sep</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">string</span><span class="o">.</span><span class="n">name</span> <span class="k">for</span> <span class="n">string</span> <span class="ow">in</span> <span class="n">group</span><span class="p">)))</span> +</span><span id="L-689"><a href="#L-689"><span class="linenos"> 689</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="L-690"><a href="#L-690"><span class="linenos"> 690</span></a> <span class="n">new_args</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span><span class="n">group</span><span class="p">)</span> +</span><span id="L-691"><a href="#L-691"><span class="linenos"> 691</span></a> +</span><span id="L-692"><a href="#L-692"><span class="linenos"> 692</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">new_args</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span> <span class="ow">and</span> <span class="n">new_args</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">is_string</span><span class="p">:</span> +</span><span id="L-693"><a href="#L-693"><span class="linenos"> 693</span></a> <span class="k">return</span> <span class="n">new_args</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> +</span><span id="L-694"><a href="#L-694"><span class="linenos"> 694</span></a> +</span><span id="L-695"><a href="#L-695"><span class="linenos"> 695</span></a> <span class="k">if</span> <span class="n">concat_type</span> <span class="ow">is</span> <span class="n">exp</span><span class="o">.</span><span class="n">ConcatWs</span><span class="p">:</span> +</span><span id="L-696"><a href="#L-696"><span class="linenos"> 696</span></a> <span class="n">new_args</span> <span class="o">=</span> <span class="p">[</span><span class="n">sep_expr</span><span class="p">]</span> <span class="o">+</span> <span class="n">new_args</span> +</span><span id="L-697"><a href="#L-697"><span class="linenos"> 697</span></a> +</span><span id="L-698"><a href="#L-698"><span class="linenos"> 698</span></a> <span class="k">return</span> <span class="n">concat_type</span><span class="p">(</span><span class="n">expressions</span><span class="o">=</span><span class="n">new_args</span><span class="p">)</span> </span><span id="L-699"><a href="#L-699"><span class="linenos"> 699</span></a> -</span><span id="L-700"><a href="#L-700"><span class="linenos"> 700</span></a><span class="k">def</span> <span class="nf">_datetrunc_range</span><span class="p">(</span><span class="n">date</span><span class="p">:</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span> <span class="n">unit</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">DateRange</span><span class="p">]:</span> -</span><span id="L-701"><a href="#L-701"><span class="linenos"> 701</span></a><span class="w"> </span><span class="sd">"""</span> -</span><span id="L-702"><a href="#L-702"><span class="linenos"> 702</span></a><span class="sd"> Get the date range for a DATE_TRUNC equality comparison:</span> -</span><span id="L-703"><a href="#L-703"><span class="linenos"> 703</span></a> -</span><span id="L-704"><a href="#L-704"><span class="linenos"> 704</span></a><span class="sd"> Example:</span> -</span><span id="L-705"><a href="#L-705"><span class="linenos"> 705</span></a><span class="sd"> _datetrunc_range(date(2021-01-01), 'year') == (date(2021-01-01), date(2022-01-01))</span> -</span><span id="L-706"><a href="#L-706"><span class="linenos"> 706</span></a><span class="sd"> Returns:</span> -</span><span id="L-707"><a href="#L-707"><span class="linenos"> 707</span></a><span class="sd"> tuple of [min, max) or None if a value can never be equal to `date` for `unit`</span> -</span><span id="L-708"><a href="#L-708"><span class="linenos"> 708</span></a><span class="sd"> """</span> -</span><span id="L-709"><a href="#L-709"><span class="linenos"> 709</span></a> <span class="n">floor</span> <span class="o">=</span> <span class="n">date_floor</span><span class="p">(</span><span class="n">date</span><span class="p">,</span> <span class="n">unit</span><span class="p">)</span> +</span><span id="L-700"><a href="#L-700"><span class="linenos"> 700</span></a> +</span><span id="L-701"><a href="#L-701"><span class="linenos"> 701</span></a><span class="k">def</span> <span class="nf">simplify_conditionals</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span> +</span><span id="L-702"><a href="#L-702"><span class="linenos"> 702</span></a><span class="w"> </span><span class="sd">"""Simplifies expressions like IF, CASE if their condition is statically known."""</span> +</span><span id="L-703"><a href="#L-703"><span class="linenos"> 703</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Case</span><span class="p">):</span> +</span><span id="L-704"><a href="#L-704"><span class="linenos"> 704</span></a> <span class="n">this</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span> +</span><span id="L-705"><a href="#L-705"><span class="linenos"> 705</span></a> <span class="k">for</span> <span class="n">case</span> <span class="ow">in</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">"ifs"</span><span class="p">]:</span> +</span><span id="L-706"><a href="#L-706"><span class="linenos"> 706</span></a> <span class="n">cond</span> <span class="o">=</span> <span class="n">case</span><span class="o">.</span><span class="n">this</span> +</span><span id="L-707"><a href="#L-707"><span class="linenos"> 707</span></a> <span class="k">if</span> <span class="n">this</span><span class="p">:</span> +</span><span id="L-708"><a href="#L-708"><span class="linenos"> 708</span></a> <span class="c1"># Convert CASE x WHEN matching_value ... to CASE WHEN x = matching_value ...</span> +</span><span id="L-709"><a href="#L-709"><span class="linenos"> 709</span></a> <span class="n">cond</span> <span class="o">=</span> <span class="n">cond</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">this</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span><span class="o">.</span><span class="n">eq</span><span class="p">(</span><span class="n">cond</span><span class="p">))</span> </span><span id="L-710"><a href="#L-710"><span class="linenos"> 710</span></a> -</span><span id="L-711"><a href="#L-711"><span class="linenos"> 711</span></a> <span class="k">if</span> <span class="n">date</span> <span class="o">!=</span> <span class="n">floor</span><span class="p">:</span> -</span><span id="L-712"><a href="#L-712"><span class="linenos"> 712</span></a> <span class="c1"># This will always be False, except for NULL values.</span> -</span><span id="L-713"><a href="#L-713"><span class="linenos"> 713</span></a> <span class="k">return</span> <span class="kc">None</span> -</span><span id="L-714"><a href="#L-714"><span class="linenos"> 714</span></a> -</span><span id="L-715"><a href="#L-715"><span class="linenos"> 715</span></a> <span class="k">return</span> <span class="n">floor</span><span class="p">,</span> <span class="n">floor</span> <span class="o">+</span> <span class="n">interval</span><span class="p">(</span><span class="n">unit</span><span class="p">)</span> -</span><span id="L-716"><a href="#L-716"><span class="linenos"> 716</span></a> -</span><span id="L-717"><a href="#L-717"><span class="linenos"> 717</span></a> -</span><span id="L-718"><a href="#L-718"><span class="linenos"> 718</span></a><span class="k">def</span> <span class="nf">_datetrunc_eq_expression</span><span class="p">(</span><span class="n">left</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">,</span> <span class="n">drange</span><span class="p">:</span> <span class="n">DateRange</span><span class="p">)</span> <span class="o">-></span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">:</span> -</span><span id="L-719"><a href="#L-719"><span class="linenos"> 719</span></a><span class="w"> </span><span class="sd">"""Get the logical expression for a date range"""</span> -</span><span id="L-720"><a href="#L-720"><span class="linenos"> 720</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">and_</span><span class="p">(</span> -</span><span id="L-721"><a href="#L-721"><span class="linenos"> 721</span></a> <span class="n">left</span> <span class="o">>=</span> <span class="n">date_literal</span><span class="p">(</span><span class="n">drange</span><span class="p">[</span><span class="mi">0</span><span class="p">]),</span> -</span><span id="L-722"><a href="#L-722"><span class="linenos"> 722</span></a> <span class="n">left</span> <span class="o"><</span> <span class="n">date_literal</span><span class="p">(</span><span class="n">drange</span><span class="p">[</span><span class="mi">1</span><span class="p">]),</span> -</span><span id="L-723"><a href="#L-723"><span class="linenos"> 723</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> -</span><span id="L-724"><a href="#L-724"><span class="linenos"> 724</span></a> <span class="p">)</span> +</span><span id="L-711"><a href="#L-711"><span class="linenos"> 711</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">cond</span><span class="p">):</span> +</span><span id="L-712"><a href="#L-712"><span class="linenos"> 712</span></a> <span class="k">return</span> <span class="n">case</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">"true"</span><span class="p">]</span> +</span><span id="L-713"><a href="#L-713"><span class="linenos"> 713</span></a> +</span><span id="L-714"><a href="#L-714"><span class="linenos"> 714</span></a> <span class="k">if</span> <span class="n">always_false</span><span class="p">(</span><span class="n">cond</span><span class="p">):</span> +</span><span id="L-715"><a href="#L-715"><span class="linenos"> 715</span></a> <span class="k">case</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span> +</span><span id="L-716"><a href="#L-716"><span class="linenos"> 716</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">"ifs"</span><span class="p">]:</span> +</span><span id="L-717"><a href="#L-717"><span class="linenos"> 717</span></a> <span class="k">return</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"default"</span><span class="p">)</span> <span class="ow">or</span> <span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()</span> +</span><span id="L-718"><a href="#L-718"><span class="linenos"> 718</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">If</span><span class="p">)</span> <span class="ow">and</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Case</span><span class="p">):</span> +</span><span id="L-719"><a href="#L-719"><span class="linenos"> 719</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">):</span> +</span><span id="L-720"><a href="#L-720"><span class="linenos"> 720</span></a> <span class="k">return</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">"true"</span><span class="p">]</span> +</span><span id="L-721"><a href="#L-721"><span class="linenos"> 721</span></a> <span class="k">if</span> <span class="n">always_false</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">):</span> +</span><span id="L-722"><a href="#L-722"><span class="linenos"> 722</span></a> <span class="k">return</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"false"</span><span class="p">)</span> <span class="ow">or</span> <span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()</span> +</span><span id="L-723"><a href="#L-723"><span class="linenos"> 723</span></a> +</span><span id="L-724"><a href="#L-724"><span class="linenos"> 724</span></a> <span class="k">return</span> <span class="n">expression</span> </span><span id="L-725"><a href="#L-725"><span class="linenos"> 725</span></a> </span><span id="L-726"><a href="#L-726"><span class="linenos"> 726</span></a> -</span><span id="L-727"><a href="#L-727"><span class="linenos"> 727</span></a><span class="k">def</span> <span class="nf">_datetrunc_eq</span><span class="p">(</span> -</span><span id="L-728"><a href="#L-728"><span class="linenos"> 728</span></a> <span class="n">left</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">,</span> <span class="n">date</span><span class="p">:</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span> <span class="n">unit</span><span class="p">:</span> <span class="nb">str</span> -</span><span id="L-729"><a href="#L-729"><span class="linenos"> 729</span></a><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">]:</span> -</span><span id="L-730"><a href="#L-730"><span class="linenos"> 730</span></a> <span class="n">drange</span> <span class="o">=</span> <span class="n">_datetrunc_range</span><span class="p">(</span><span class="n">date</span><span class="p">,</span> <span class="n">unit</span><span class="p">)</span> -</span><span id="L-731"><a href="#L-731"><span class="linenos"> 731</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">drange</span><span class="p">:</span> -</span><span id="L-732"><a href="#L-732"><span class="linenos"> 732</span></a> <span class="k">return</span> <span class="kc">None</span> +</span><span id="L-727"><a href="#L-727"><span class="linenos"> 727</span></a><span class="n">DateRange</span> <span class="o">=</span> <span class="n">t</span><span class="o">.</span><span class="n">Tuple</span><span class="p">[</span><span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">]</span> +</span><span id="L-728"><a href="#L-728"><span class="linenos"> 728</span></a> +</span><span id="L-729"><a href="#L-729"><span class="linenos"> 729</span></a> +</span><span id="L-730"><a href="#L-730"><span class="linenos"> 730</span></a><span class="k">def</span> <span class="nf">_datetrunc_range</span><span class="p">(</span><span class="n">date</span><span class="p">:</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span> <span class="n">unit</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">DateRange</span><span class="p">]:</span> +</span><span id="L-731"><a href="#L-731"><span class="linenos"> 731</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="L-732"><a href="#L-732"><span class="linenos"> 732</span></a><span class="sd"> Get the date range for a DATE_TRUNC equality comparison:</span> </span><span id="L-733"><a href="#L-733"><span class="linenos"> 733</span></a> -</span><span id="L-734"><a href="#L-734"><span class="linenos"> 734</span></a> <span class="k">return</span> <span class="n">_datetrunc_eq_expression</span><span class="p">(</span><span class="n">left</span><span class="p">,</span> <span class="n">drange</span><span class="p">)</span> -</span><span id="L-735"><a href="#L-735"><span class="linenos"> 735</span></a> -</span><span id="L-736"><a href="#L-736"><span class="linenos"> 736</span></a> -</span><span id="L-737"><a href="#L-737"><span class="linenos"> 737</span></a><span class="k">def</span> <span class="nf">_datetrunc_neq</span><span class="p">(</span> -</span><span id="L-738"><a href="#L-738"><span class="linenos"> 738</span></a> <span class="n">left</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">,</span> <span class="n">date</span><span class="p">:</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span> <span class="n">unit</span><span class="p">:</span> <span class="nb">str</span> -</span><span id="L-739"><a href="#L-739"><span class="linenos"> 739</span></a><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">]:</span> -</span><span id="L-740"><a href="#L-740"><span class="linenos"> 740</span></a> <span class="n">drange</span> <span class="o">=</span> <span class="n">_datetrunc_range</span><span class="p">(</span><span class="n">date</span><span class="p">,</span> <span class="n">unit</span><span class="p">)</span> -</span><span id="L-741"><a href="#L-741"><span class="linenos"> 741</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">drange</span><span class="p">:</span> -</span><span id="L-742"><a href="#L-742"><span class="linenos"> 742</span></a> <span class="k">return</span> <span class="kc">None</span> -</span><span id="L-743"><a href="#L-743"><span class="linenos"> 743</span></a> -</span><span id="L-744"><a href="#L-744"><span class="linenos"> 744</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">and_</span><span class="p">(</span> -</span><span id="L-745"><a href="#L-745"><span class="linenos"> 745</span></a> <span class="n">left</span> <span class="o"><</span> <span class="n">date_literal</span><span class="p">(</span><span class="n">drange</span><span class="p">[</span><span class="mi">0</span><span class="p">]),</span> -</span><span id="L-746"><a href="#L-746"><span class="linenos"> 746</span></a> <span class="n">left</span> <span class="o">>=</span> <span class="n">date_literal</span><span class="p">(</span><span class="n">drange</span><span class="p">[</span><span class="mi">1</span><span class="p">]),</span> -</span><span id="L-747"><a href="#L-747"><span class="linenos"> 747</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> -</span><span id="L-748"><a href="#L-748"><span class="linenos"> 748</span></a> <span class="p">)</span> -</span><span id="L-749"><a href="#L-749"><span class="linenos"> 749</span></a> -</span><span id="L-750"><a href="#L-750"><span class="linenos"> 750</span></a> -</span><span id="L-751"><a href="#L-751"><span class="linenos"> 751</span></a><span class="n">DateTruncBinaryTransform</span> <span class="o">=</span> <span class="n">t</span><span class="o">.</span><span class="n">Callable</span><span class="p">[</span> -</span><span id="L-752"><a href="#L-752"><span class="linenos"> 752</span></a> <span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span> <span class="nb">str</span><span class="p">],</span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">]</span> -</span><span id="L-753"><a href="#L-753"><span class="linenos"> 753</span></a><span class="p">]</span> -</span><span id="L-754"><a href="#L-754"><span class="linenos"> 754</span></a><span class="n">DATETRUNC_BINARY_COMPARISONS</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Type</span><span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">],</span> <span class="n">DateTruncBinaryTransform</span><span class="p">]</span> <span class="o">=</span> <span class="p">{</span> -</span><span id="L-755"><a href="#L-755"><span class="linenos"> 755</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">LT</span><span class="p">:</span> <span class="k">lambda</span> <span class="n">l</span><span class="p">,</span> <span class="n">d</span><span class="p">,</span> <span class="n">u</span><span class="p">:</span> <span class="n">l</span> <span class="o"><</span> <span class="n">date_literal</span><span class="p">(</span><span class="n">date_floor</span><span class="p">(</span><span class="n">d</span><span class="p">,</span> <span class="n">u</span><span class="p">)),</span> -</span><span id="L-756"><a href="#L-756"><span class="linenos"> 756</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">GT</span><span class="p">:</span> <span class="k">lambda</span> <span class="n">l</span><span class="p">,</span> <span class="n">d</span><span class="p">,</span> <span class="n">u</span><span class="p">:</span> <span class="n">l</span> <span class="o">>=</span> <span class="n">date_literal</span><span class="p">(</span><span class="n">date_floor</span><span class="p">(</span><span class="n">d</span><span class="p">,</span> <span class="n">u</span><span class="p">)</span> <span class="o">+</span> <span class="n">interval</span><span class="p">(</span><span class="n">u</span><span class="p">)),</span> -</span><span id="L-757"><a href="#L-757"><span class="linenos"> 757</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">LTE</span><span class="p">:</span> <span class="k">lambda</span> <span class="n">l</span><span class="p">,</span> <span class="n">d</span><span class="p">,</span> <span class="n">u</span><span class="p">:</span> <span class="n">l</span> <span class="o"><</span> <span class="n">date_literal</span><span class="p">(</span><span class="n">date_floor</span><span class="p">(</span><span class="n">d</span><span class="p">,</span> <span class="n">u</span><span class="p">)</span> <span class="o">+</span> <span class="n">interval</span><span class="p">(</span><span class="n">u</span><span class="p">)),</span> -</span><span id="L-758"><a href="#L-758"><span class="linenos"> 758</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">GTE</span><span class="p">:</span> <span class="k">lambda</span> <span class="n">l</span><span class="p">,</span> <span class="n">d</span><span class="p">,</span> <span class="n">u</span><span class="p">:</span> <span class="n">l</span> <span class="o">>=</span> <span class="n">date_literal</span><span class="p">(</span><span class="n">date_ceil</span><span class="p">(</span><span class="n">d</span><span class="p">,</span> <span class="n">u</span><span class="p">)),</span> -</span><span id="L-759"><a href="#L-759"><span class="linenos"> 759</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">EQ</span><span class="p">:</span> <span class="n">_datetrunc_eq</span><span class="p">,</span> -</span><span id="L-760"><a href="#L-760"><span class="linenos"> 760</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">NEQ</span><span class="p">:</span> <span class="n">_datetrunc_neq</span><span class="p">,</span> -</span><span id="L-761"><a href="#L-761"><span class="linenos"> 761</span></a><span class="p">}</span> -</span><span id="L-762"><a href="#L-762"><span class="linenos"> 762</span></a><span class="n">DATETRUNC_COMPARISONS</span> <span class="o">=</span> <span class="p">{</span><span class="n">exp</span><span class="o">.</span><span class="n">In</span><span class="p">,</span> <span class="o">*</span><span class="n">DATETRUNC_BINARY_COMPARISONS</span><span class="p">}</span> +</span><span id="L-734"><a href="#L-734"><span class="linenos"> 734</span></a><span class="sd"> Example:</span> +</span><span id="L-735"><a href="#L-735"><span class="linenos"> 735</span></a><span class="sd"> _datetrunc_range(date(2021-01-01), 'year') == (date(2021-01-01), date(2022-01-01))</span> +</span><span id="L-736"><a href="#L-736"><span class="linenos"> 736</span></a><span class="sd"> Returns:</span> +</span><span id="L-737"><a href="#L-737"><span class="linenos"> 737</span></a><span class="sd"> tuple of [min, max) or None if a value can never be equal to `date` for `unit`</span> +</span><span id="L-738"><a href="#L-738"><span class="linenos"> 738</span></a><span class="sd"> """</span> +</span><span id="L-739"><a href="#L-739"><span class="linenos"> 739</span></a> <span class="n">floor</span> <span class="o">=</span> <span class="n">date_floor</span><span class="p">(</span><span class="n">date</span><span class="p">,</span> <span class="n">unit</span><span class="p">)</span> +</span><span id="L-740"><a href="#L-740"><span class="linenos"> 740</span></a> +</span><span id="L-741"><a href="#L-741"><span class="linenos"> 741</span></a> <span class="k">if</span> <span class="n">date</span> <span class="o">!=</span> <span class="n">floor</span><span class="p">:</span> +</span><span id="L-742"><a href="#L-742"><span class="linenos"> 742</span></a> <span class="c1"># This will always be False, except for NULL values.</span> +</span><span id="L-743"><a href="#L-743"><span class="linenos"> 743</span></a> <span class="k">return</span> <span class="kc">None</span> +</span><span id="L-744"><a href="#L-744"><span class="linenos"> 744</span></a> +</span><span id="L-745"><a href="#L-745"><span class="linenos"> 745</span></a> <span class="k">return</span> <span class="n">floor</span><span class="p">,</span> <span class="n">floor</span> <span class="o">+</span> <span class="n">interval</span><span class="p">(</span><span class="n">unit</span><span class="p">)</span> +</span><span id="L-746"><a href="#L-746"><span class="linenos"> 746</span></a> +</span><span id="L-747"><a href="#L-747"><span class="linenos"> 747</span></a> +</span><span id="L-748"><a href="#L-748"><span class="linenos"> 748</span></a><span class="k">def</span> <span class="nf">_datetrunc_eq_expression</span><span class="p">(</span><span class="n">left</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">,</span> <span class="n">drange</span><span class="p">:</span> <span class="n">DateRange</span><span class="p">)</span> <span class="o">-></span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">:</span> +</span><span id="L-749"><a href="#L-749"><span class="linenos"> 749</span></a><span class="w"> </span><span class="sd">"""Get the logical expression for a date range"""</span> +</span><span id="L-750"><a href="#L-750"><span class="linenos"> 750</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">and_</span><span class="p">(</span> +</span><span id="L-751"><a href="#L-751"><span class="linenos"> 751</span></a> <span class="n">left</span> <span class="o">>=</span> <span class="n">date_literal</span><span class="p">(</span><span class="n">drange</span><span class="p">[</span><span class="mi">0</span><span class="p">]),</span> +</span><span id="L-752"><a href="#L-752"><span class="linenos"> 752</span></a> <span class="n">left</span> <span class="o"><</span> <span class="n">date_literal</span><span class="p">(</span><span class="n">drange</span><span class="p">[</span><span class="mi">1</span><span class="p">]),</span> +</span><span id="L-753"><a href="#L-753"><span class="linenos"> 753</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> +</span><span id="L-754"><a href="#L-754"><span class="linenos"> 754</span></a> <span class="p">)</span> +</span><span id="L-755"><a href="#L-755"><span class="linenos"> 755</span></a> +</span><span id="L-756"><a href="#L-756"><span class="linenos"> 756</span></a> +</span><span id="L-757"><a href="#L-757"><span class="linenos"> 757</span></a><span class="k">def</span> <span class="nf">_datetrunc_eq</span><span class="p">(</span> +</span><span id="L-758"><a href="#L-758"><span class="linenos"> 758</span></a> <span class="n">left</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">,</span> <span class="n">date</span><span class="p">:</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span> <span class="n">unit</span><span class="p">:</span> <span class="nb">str</span> +</span><span id="L-759"><a href="#L-759"><span class="linenos"> 759</span></a><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">]:</span> +</span><span id="L-760"><a href="#L-760"><span class="linenos"> 760</span></a> <span class="n">drange</span> <span class="o">=</span> <span class="n">_datetrunc_range</span><span class="p">(</span><span class="n">date</span><span class="p">,</span> <span class="n">unit</span><span class="p">)</span> +</span><span id="L-761"><a href="#L-761"><span class="linenos"> 761</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">drange</span><span class="p">:</span> +</span><span id="L-762"><a href="#L-762"><span class="linenos"> 762</span></a> <span class="k">return</span> <span class="kc">None</span> </span><span id="L-763"><a href="#L-763"><span class="linenos"> 763</span></a> -</span><span id="L-764"><a href="#L-764"><span class="linenos"> 764</span></a> -</span><span id="L-765"><a href="#L-765"><span class="linenos"> 765</span></a><span class="k">def</span> <span class="nf">_is_datetrunc_predicate</span><span class="p">(</span><span class="n">left</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">,</span> <span class="n">right</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="nb">bool</span><span class="p">:</span> -</span><span id="L-766"><a href="#L-766"><span class="linenos"> 766</span></a> <span class="k">return</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">left</span><span class="p">,</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">DateTrunc</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">TimestampTrunc</span><span class="p">))</span> <span class="ow">and</span> <span class="n">_is_date_literal</span><span class="p">(</span><span class="n">right</span><span class="p">)</span> -</span><span id="L-767"><a href="#L-767"><span class="linenos"> 767</span></a> -</span><span id="L-768"><a href="#L-768"><span class="linenos"> 768</span></a> -</span><span id="L-769"><a href="#L-769"><span class="linenos"> 769</span></a><span class="nd">@catch</span><span class="p">(</span><span class="ne">ModuleNotFoundError</span><span class="p">,</span> <span class="n">UnsupportedUnit</span><span class="p">)</span> -</span><span id="L-770"><a href="#L-770"><span class="linenos"> 770</span></a><span class="k">def</span> <span class="nf">simplify_datetrunc_predicate</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">:</span> -</span><span id="L-771"><a href="#L-771"><span class="linenos"> 771</span></a><span class="w"> </span><span class="sd">"""Simplify expressions like `DATE_TRUNC('year', x) >= CAST('2021-01-01' AS DATE)`"""</span> -</span><span id="L-772"><a href="#L-772"><span class="linenos"> 772</span></a> <span class="n">comparison</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="vm">__class__</span> +</span><span id="L-764"><a href="#L-764"><span class="linenos"> 764</span></a> <span class="k">return</span> <span class="n">_datetrunc_eq_expression</span><span class="p">(</span><span class="n">left</span><span class="p">,</span> <span class="n">drange</span><span class="p">)</span> +</span><span id="L-765"><a href="#L-765"><span class="linenos"> 765</span></a> +</span><span id="L-766"><a href="#L-766"><span class="linenos"> 766</span></a> +</span><span id="L-767"><a href="#L-767"><span class="linenos"> 767</span></a><span class="k">def</span> <span class="nf">_datetrunc_neq</span><span class="p">(</span> +</span><span id="L-768"><a href="#L-768"><span class="linenos"> 768</span></a> <span class="n">left</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">,</span> <span class="n">date</span><span class="p">:</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span> <span class="n">unit</span><span class="p">:</span> <span class="nb">str</span> +</span><span id="L-769"><a href="#L-769"><span class="linenos"> 769</span></a><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">]:</span> +</span><span id="L-770"><a href="#L-770"><span class="linenos"> 770</span></a> <span class="n">drange</span> <span class="o">=</span> <span class="n">_datetrunc_range</span><span class="p">(</span><span class="n">date</span><span class="p">,</span> <span class="n">unit</span><span class="p">)</span> +</span><span id="L-771"><a href="#L-771"><span class="linenos"> 771</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">drange</span><span class="p">:</span> +</span><span id="L-772"><a href="#L-772"><span class="linenos"> 772</span></a> <span class="k">return</span> <span class="kc">None</span> </span><span id="L-773"><a href="#L-773"><span class="linenos"> 773</span></a> -</span><span id="L-774"><a href="#L-774"><span class="linenos"> 774</span></a> <span class="k">if</span> <span class="n">comparison</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">DATETRUNC_COMPARISONS</span><span class="p">:</span> -</span><span id="L-775"><a href="#L-775"><span class="linenos"> 775</span></a> <span class="k">return</span> <span class="n">expression</span> -</span><span id="L-776"><a href="#L-776"><span class="linenos"> 776</span></a> -</span><span id="L-777"><a href="#L-777"><span class="linenos"> 777</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Binary</span><span class="p">):</span> -</span><span id="L-778"><a href="#L-778"><span class="linenos"> 778</span></a> <span class="n">l</span><span class="p">,</span> <span class="n">r</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="n">expression</span><span class="o">.</span><span class="n">right</span> +</span><span id="L-774"><a href="#L-774"><span class="linenos"> 774</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">and_</span><span class="p">(</span> +</span><span id="L-775"><a href="#L-775"><span class="linenos"> 775</span></a> <span class="n">left</span> <span class="o"><</span> <span class="n">date_literal</span><span class="p">(</span><span class="n">drange</span><span class="p">[</span><span class="mi">0</span><span class="p">]),</span> +</span><span id="L-776"><a href="#L-776"><span class="linenos"> 776</span></a> <span class="n">left</span> <span class="o">>=</span> <span class="n">date_literal</span><span class="p">(</span><span class="n">drange</span><span class="p">[</span><span class="mi">1</span><span class="p">]),</span> +</span><span id="L-777"><a href="#L-777"><span class="linenos"> 777</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> +</span><span id="L-778"><a href="#L-778"><span class="linenos"> 778</span></a> <span class="p">)</span> </span><span id="L-779"><a href="#L-779"><span class="linenos"> 779</span></a> -</span><span id="L-780"><a href="#L-780"><span class="linenos"> 780</span></a> <span class="k">if</span> <span class="n">_is_datetrunc_predicate</span><span class="p">(</span><span class="n">l</span><span class="p">,</span> <span class="n">r</span><span class="p">):</span> -</span><span id="L-781"><a href="#L-781"><span class="linenos"> 781</span></a> <span class="k">pass</span> -</span><span id="L-782"><a href="#L-782"><span class="linenos"> 782</span></a> <span class="k">elif</span> <span class="n">_is_datetrunc_predicate</span><span class="p">(</span><span class="n">r</span><span class="p">,</span> <span class="n">l</span><span class="p">):</span> -</span><span id="L-783"><a href="#L-783"><span class="linenos"> 783</span></a> <span class="n">comparison</span> <span class="o">=</span> <span class="n">INVERSE_COMPARISONS</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">comparison</span><span class="p">,</span> <span class="n">comparison</span><span class="p">)</span> -</span><span id="L-784"><a href="#L-784"><span class="linenos"> 784</span></a> <span class="n">l</span><span class="p">,</span> <span class="n">r</span> <span class="o">=</span> <span class="n">r</span><span class="p">,</span> <span class="n">l</span> -</span><span id="L-785"><a href="#L-785"><span class="linenos"> 785</span></a> <span class="k">else</span><span class="p">:</span> -</span><span id="L-786"><a href="#L-786"><span class="linenos"> 786</span></a> <span class="k">return</span> <span class="n">expression</span> -</span><span id="L-787"><a href="#L-787"><span class="linenos"> 787</span></a> -</span><span id="L-788"><a href="#L-788"><span class="linenos"> 788</span></a> <span class="n">unit</span> <span class="o">=</span> <span class="n">l</span><span class="o">.</span><span class="n">unit</span><span class="o">.</span><span class="n">name</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span> -</span><span id="L-789"><a href="#L-789"><span class="linenos"> 789</span></a> <span class="n">date</span> <span class="o">=</span> <span class="n">extract_date</span><span class="p">(</span><span class="n">r</span><span class="p">)</span> -</span><span id="L-790"><a href="#L-790"><span class="linenos"> 790</span></a> -</span><span id="L-791"><a href="#L-791"><span class="linenos"> 791</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">date</span><span class="p">:</span> -</span><span id="L-792"><a href="#L-792"><span class="linenos"> 792</span></a> <span class="k">return</span> <span class="n">expression</span> +</span><span id="L-780"><a href="#L-780"><span class="linenos"> 780</span></a> +</span><span id="L-781"><a href="#L-781"><span class="linenos"> 781</span></a><span class="n">DateTruncBinaryTransform</span> <span class="o">=</span> <span class="n">t</span><span class="o">.</span><span class="n">Callable</span><span class="p">[</span> +</span><span id="L-782"><a href="#L-782"><span class="linenos"> 782</span></a> <span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span> <span class="nb">str</span><span class="p">],</span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">]</span> +</span><span id="L-783"><a href="#L-783"><span class="linenos"> 783</span></a><span class="p">]</span> +</span><span id="L-784"><a href="#L-784"><span class="linenos"> 784</span></a><span class="n">DATETRUNC_BINARY_COMPARISONS</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Type</span><span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">],</span> <span class="n">DateTruncBinaryTransform</span><span class="p">]</span> <span class="o">=</span> <span class="p">{</span> +</span><span id="L-785"><a href="#L-785"><span class="linenos"> 785</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">LT</span><span class="p">:</span> <span class="k">lambda</span> <span class="n">l</span><span class="p">,</span> <span class="n">d</span><span class="p">,</span> <span class="n">u</span><span class="p">:</span> <span class="n">l</span> <span class="o"><</span> <span class="n">date_literal</span><span class="p">(</span><span class="n">date_floor</span><span class="p">(</span><span class="n">d</span><span class="p">,</span> <span class="n">u</span><span class="p">)),</span> +</span><span id="L-786"><a href="#L-786"><span class="linenos"> 786</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">GT</span><span class="p">:</span> <span class="k">lambda</span> <span class="n">l</span><span class="p">,</span> <span class="n">d</span><span class="p">,</span> <span class="n">u</span><span class="p">:</span> <span class="n">l</span> <span class="o">>=</span> <span class="n">date_literal</span><span class="p">(</span><span class="n">date_floor</span><span class="p">(</span><span class="n">d</span><span class="p">,</span> <span class="n">u</span><span class="p">)</span> <span class="o">+</span> <span class="n">interval</span><span class="p">(</span><span class="n">u</span><span class="p">)),</span> +</span><span id="L-787"><a href="#L-787"><span class="linenos"> 787</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">LTE</span><span class="p">:</span> <span class="k">lambda</span> <span class="n">l</span><span class="p">,</span> <span class="n">d</span><span class="p">,</span> <span class="n">u</span><span class="p">:</span> <span class="n">l</span> <span class="o"><</span> <span class="n">date_literal</span><span class="p">(</span><span class="n">date_floor</span><span class="p">(</span><span class="n">d</span><span class="p">,</span> <span class="n">u</span><span class="p">)</span> <span class="o">+</span> <span class="n">interval</span><span class="p">(</span><span class="n">u</span><span class="p">)),</span> +</span><span id="L-788"><a href="#L-788"><span class="linenos"> 788</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">GTE</span><span class="p">:</span> <span class="k">lambda</span> <span class="n">l</span><span class="p">,</span> <span class="n">d</span><span class="p">,</span> <span class="n">u</span><span class="p">:</span> <span class="n">l</span> <span class="o">>=</span> <span class="n">date_literal</span><span class="p">(</span><span class="n">date_ceil</span><span class="p">(</span><span class="n">d</span><span class="p">,</span> <span class="n">u</span><span class="p">)),</span> +</span><span id="L-789"><a href="#L-789"><span class="linenos"> 789</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">EQ</span><span class="p">:</span> <span class="n">_datetrunc_eq</span><span class="p">,</span> +</span><span id="L-790"><a href="#L-790"><span class="linenos"> 790</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">NEQ</span><span class="p">:</span> <span class="n">_datetrunc_neq</span><span class="p">,</span> +</span><span id="L-791"><a href="#L-791"><span class="linenos"> 791</span></a><span class="p">}</span> +</span><span id="L-792"><a href="#L-792"><span class="linenos"> 792</span></a><span class="n">DATETRUNC_COMPARISONS</span> <span class="o">=</span> <span class="p">{</span><span class="n">exp</span><span class="o">.</span><span class="n">In</span><span class="p">,</span> <span class="o">*</span><span class="n">DATETRUNC_BINARY_COMPARISONS</span><span class="p">}</span> </span><span id="L-793"><a href="#L-793"><span class="linenos"> 793</span></a> -</span><span id="L-794"><a href="#L-794"><span class="linenos"> 794</span></a> <span class="k">return</span> <span class="n">DATETRUNC_BINARY_COMPARISONS</span><span class="p">[</span><span class="n">comparison</span><span class="p">](</span><span class="n">l</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">date</span><span class="p">,</span> <span class="n">unit</span><span class="p">)</span> <span class="ow">or</span> <span class="n">expression</span> -</span><span id="L-795"><a href="#L-795"><span class="linenos"> 795</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">In</span><span class="p">):</span> -</span><span id="L-796"><a href="#L-796"><span class="linenos"> 796</span></a> <span class="n">l</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span> -</span><span id="L-797"><a href="#L-797"><span class="linenos"> 797</span></a> <span class="n">rs</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">expressions</span> +</span><span id="L-794"><a href="#L-794"><span class="linenos"> 794</span></a> +</span><span id="L-795"><a href="#L-795"><span class="linenos"> 795</span></a><span class="k">def</span> <span class="nf">_is_datetrunc_predicate</span><span class="p">(</span><span class="n">left</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">,</span> <span class="n">right</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="nb">bool</span><span class="p">:</span> +</span><span id="L-796"><a href="#L-796"><span class="linenos"> 796</span></a> <span class="k">return</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">left</span><span class="p">,</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">DateTrunc</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">TimestampTrunc</span><span class="p">))</span> <span class="ow">and</span> <span class="n">_is_date_literal</span><span class="p">(</span><span class="n">right</span><span class="p">)</span> +</span><span id="L-797"><a href="#L-797"><span class="linenos"> 797</span></a> </span><span id="L-798"><a href="#L-798"><span class="linenos"> 798</span></a> -</span><span id="L-799"><a href="#L-799"><span class="linenos"> 799</span></a> <span class="k">if</span> <span class="n">rs</span> <span class="ow">and</span> <span class="nb">all</span><span class="p">(</span><span class="n">_is_datetrunc_predicate</span><span class="p">(</span><span class="n">l</span><span class="p">,</span> <span class="n">r</span><span class="p">)</span> <span class="k">for</span> <span class="n">r</span> <span class="ow">in</span> <span class="n">rs</span><span class="p">):</span> -</span><span id="L-800"><a href="#L-800"><span class="linenos"> 800</span></a> <span class="n">unit</span> <span class="o">=</span> <span class="n">l</span><span class="o">.</span><span class="n">unit</span><span class="o">.</span><span class="n">name</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span> -</span><span id="L-801"><a href="#L-801"><span class="linenos"> 801</span></a> -</span><span id="L-802"><a href="#L-802"><span class="linenos"> 802</span></a> <span class="n">ranges</span> <span class="o">=</span> <span class="p">[]</span> -</span><span id="L-803"><a href="#L-803"><span class="linenos"> 803</span></a> <span class="k">for</span> <span class="n">r</span> <span class="ow">in</span> <span class="n">rs</span><span class="p">:</span> -</span><span id="L-804"><a href="#L-804"><span class="linenos"> 804</span></a> <span class="n">date</span> <span class="o">=</span> <span class="n">extract_date</span><span class="p">(</span><span class="n">r</span><span class="p">)</span> -</span><span id="L-805"><a href="#L-805"><span class="linenos"> 805</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">date</span><span class="p">:</span> -</span><span id="L-806"><a href="#L-806"><span class="linenos"> 806</span></a> <span class="k">return</span> <span class="n">expression</span> -</span><span id="L-807"><a href="#L-807"><span class="linenos"> 807</span></a> <span class="n">drange</span> <span class="o">=</span> <span class="n">_datetrunc_range</span><span class="p">(</span><span class="n">date</span><span class="p">,</span> <span class="n">unit</span><span class="p">)</span> -</span><span id="L-808"><a href="#L-808"><span class="linenos"> 808</span></a> <span class="k">if</span> <span class="n">drange</span><span class="p">:</span> -</span><span id="L-809"><a href="#L-809"><span class="linenos"> 809</span></a> <span class="n">ranges</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">drange</span><span class="p">)</span> -</span><span id="L-810"><a href="#L-810"><span class="linenos"> 810</span></a> -</span><span id="L-811"><a href="#L-811"><span class="linenos"> 811</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">ranges</span><span class="p">:</span> -</span><span id="L-812"><a href="#L-812"><span class="linenos"> 812</span></a> <span class="k">return</span> <span class="n">expression</span> -</span><span id="L-813"><a href="#L-813"><span class="linenos"> 813</span></a> -</span><span id="L-814"><a href="#L-814"><span class="linenos"> 814</span></a> <span class="n">ranges</span> <span class="o">=</span> <span class="n">merge_ranges</span><span class="p">(</span><span class="n">ranges</span><span class="p">)</span> -</span><span id="L-815"><a href="#L-815"><span class="linenos"> 815</span></a> -</span><span id="L-816"><a href="#L-816"><span class="linenos"> 816</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">or_</span><span class="p">(</span><span class="o">*</span><span class="p">[</span><span class="n">_datetrunc_eq_expression</span><span class="p">(</span><span class="n">l</span><span class="p">,</span> <span class="n">drange</span><span class="p">)</span> <span class="k">for</span> <span class="n">drange</span> <span class="ow">in</span> <span class="n">ranges</span><span class="p">],</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span> +</span><span id="L-799"><a href="#L-799"><span class="linenos"> 799</span></a><span class="nd">@catch</span><span class="p">(</span><span class="ne">ModuleNotFoundError</span><span class="p">,</span> <span class="n">UnsupportedUnit</span><span class="p">)</span> +</span><span id="L-800"><a href="#L-800"><span class="linenos"> 800</span></a><span class="k">def</span> <span class="nf">simplify_datetrunc_predicate</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">:</span> +</span><span id="L-801"><a href="#L-801"><span class="linenos"> 801</span></a><span class="w"> </span><span class="sd">"""Simplify expressions like `DATE_TRUNC('year', x) >= CAST('2021-01-01' AS DATE)`"""</span> +</span><span id="L-802"><a href="#L-802"><span class="linenos"> 802</span></a> <span class="n">comparison</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="vm">__class__</span> +</span><span id="L-803"><a href="#L-803"><span class="linenos"> 803</span></a> +</span><span id="L-804"><a href="#L-804"><span class="linenos"> 804</span></a> <span class="k">if</span> <span class="n">comparison</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">DATETRUNC_COMPARISONS</span><span class="p">:</span> +</span><span id="L-805"><a href="#L-805"><span class="linenos"> 805</span></a> <span class="k">return</span> <span class="n">expression</span> +</span><span id="L-806"><a href="#L-806"><span class="linenos"> 806</span></a> +</span><span id="L-807"><a href="#L-807"><span class="linenos"> 807</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Binary</span><span class="p">):</span> +</span><span id="L-808"><a href="#L-808"><span class="linenos"> 808</span></a> <span class="n">l</span><span class="p">,</span> <span class="n">r</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="n">expression</span><span class="o">.</span><span class="n">right</span> +</span><span id="L-809"><a href="#L-809"><span class="linenos"> 809</span></a> +</span><span id="L-810"><a href="#L-810"><span class="linenos"> 810</span></a> <span class="k">if</span> <span class="n">_is_datetrunc_predicate</span><span class="p">(</span><span class="n">l</span><span class="p">,</span> <span class="n">r</span><span class="p">):</span> +</span><span id="L-811"><a href="#L-811"><span class="linenos"> 811</span></a> <span class="k">pass</span> +</span><span id="L-812"><a href="#L-812"><span class="linenos"> 812</span></a> <span class="k">elif</span> <span class="n">_is_datetrunc_predicate</span><span class="p">(</span><span class="n">r</span><span class="p">,</span> <span class="n">l</span><span class="p">):</span> +</span><span id="L-813"><a href="#L-813"><span class="linenos"> 813</span></a> <span class="n">comparison</span> <span class="o">=</span> <span class="n">INVERSE_COMPARISONS</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">comparison</span><span class="p">,</span> <span class="n">comparison</span><span class="p">)</span> +</span><span id="L-814"><a href="#L-814"><span class="linenos"> 814</span></a> <span class="n">l</span><span class="p">,</span> <span class="n">r</span> <span class="o">=</span> <span class="n">r</span><span class="p">,</span> <span class="n">l</span> +</span><span id="L-815"><a href="#L-815"><span class="linenos"> 815</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="L-816"><a href="#L-816"><span class="linenos"> 816</span></a> <span class="k">return</span> <span class="n">expression</span> </span><span id="L-817"><a href="#L-817"><span class="linenos"> 817</span></a> -</span><span id="L-818"><a href="#L-818"><span class="linenos"> 818</span></a> <span class="k">return</span> <span class="n">expression</span> -</span><span id="L-819"><a href="#L-819"><span class="linenos"> 819</span></a> -</span><span id="L-820"><a href="#L-820"><span class="linenos"> 820</span></a> -</span><span id="L-821"><a href="#L-821"><span class="linenos"> 821</span></a><span class="c1"># CROSS joins result in an empty table if the right table is empty.</span> -</span><span id="L-822"><a href="#L-822"><span class="linenos"> 822</span></a><span class="c1"># So we can only simplify certain types of joins to CROSS.</span> -</span><span id="L-823"><a href="#L-823"><span class="linenos"> 823</span></a><span class="c1"># Or in other words, LEFT JOIN x ON TRUE != CROSS JOIN x</span> -</span><span id="L-824"><a href="#L-824"><span class="linenos"> 824</span></a><span class="n">JOINS</span> <span class="o">=</span> <span class="p">{</span> -</span><span id="L-825"><a href="#L-825"><span class="linenos"> 825</span></a> <span class="p">(</span><span class="s2">""</span><span class="p">,</span> <span class="s2">""</span><span class="p">),</span> -</span><span id="L-826"><a href="#L-826"><span class="linenos"> 826</span></a> <span class="p">(</span><span class="s2">""</span><span class="p">,</span> <span class="s2">"INNER"</span><span class="p">),</span> -</span><span id="L-827"><a href="#L-827"><span class="linenos"> 827</span></a> <span class="p">(</span><span class="s2">"RIGHT"</span><span class="p">,</span> <span class="s2">""</span><span class="p">),</span> -</span><span id="L-828"><a href="#L-828"><span class="linenos"> 828</span></a> <span class="p">(</span><span class="s2">"RIGHT"</span><span class="p">,</span> <span class="s2">"OUTER"</span><span class="p">),</span> -</span><span id="L-829"><a href="#L-829"><span class="linenos"> 829</span></a><span class="p">}</span> -</span><span id="L-830"><a href="#L-830"><span class="linenos"> 830</span></a> -</span><span id="L-831"><a href="#L-831"><span class="linenos"> 831</span></a> -</span><span id="L-832"><a href="#L-832"><span class="linenos"> 832</span></a><span class="k">def</span> <span class="nf">remove_where_true</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span> -</span><span id="L-833"><a href="#L-833"><span class="linenos"> 833</span></a> <span class="k">for</span> <span class="n">where</span> <span class="ow">in</span> <span class="n">expression</span><span class="o">.</span><span class="n">find_all</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Where</span><span class="p">):</span> -</span><span id="L-834"><a href="#L-834"><span class="linenos"> 834</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">where</span><span class="o">.</span><span class="n">this</span><span class="p">):</span> -</span><span id="L-835"><a href="#L-835"><span class="linenos"> 835</span></a> <span class="n">where</span><span class="o">.</span><span class="n">parent</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"where"</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span> -</span><span id="L-836"><a href="#L-836"><span class="linenos"> 836</span></a> <span class="k">for</span> <span class="n">join</span> <span class="ow">in</span> <span class="n">expression</span><span class="o">.</span><span class="n">find_all</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Join</span><span class="p">):</span> -</span><span id="L-837"><a href="#L-837"><span class="linenos"> 837</span></a> <span class="k">if</span> <span class="p">(</span> -</span><span id="L-838"><a href="#L-838"><span class="linenos"> 838</span></a> <span class="n">always_true</span><span class="p">(</span><span class="n">join</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"on"</span><span class="p">))</span> -</span><span id="L-839"><a href="#L-839"><span class="linenos"> 839</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="n">join</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"using"</span><span class="p">)</span> -</span><span id="L-840"><a href="#L-840"><span class="linenos"> 840</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="n">join</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"method"</span><span class="p">)</span> -</span><span id="L-841"><a href="#L-841"><span class="linenos"> 841</span></a> <span class="ow">and</span> <span class="p">(</span><span class="n">join</span><span class="o">.</span><span class="n">side</span><span class="p">,</span> <span class="n">join</span><span class="o">.</span><span class="n">kind</span><span class="p">)</span> <span class="ow">in</span> <span class="n">JOINS</span> -</span><span id="L-842"><a href="#L-842"><span class="linenos"> 842</span></a> <span class="p">):</span> -</span><span id="L-843"><a href="#L-843"><span class="linenos"> 843</span></a> <span class="n">join</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"on"</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span> -</span><span id="L-844"><a href="#L-844"><span class="linenos"> 844</span></a> <span class="n">join</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"side"</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span> -</span><span id="L-845"><a href="#L-845"><span class="linenos"> 845</span></a> <span class="n">join</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"kind"</span><span class="p">,</span> <span class="s2">"CROSS"</span><span class="p">)</span> -</span><span id="L-846"><a href="#L-846"><span class="linenos"> 846</span></a> +</span><span id="L-818"><a href="#L-818"><span class="linenos"> 818</span></a> <span class="n">l</span> <span class="o">=</span> <span class="n">t</span><span class="o">.</span><span class="n">cast</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">DateTrunc</span><span class="p">,</span> <span class="n">l</span><span class="p">)</span> +</span><span id="L-819"><a href="#L-819"><span class="linenos"> 819</span></a> <span class="n">unit</span> <span class="o">=</span> <span class="n">l</span><span class="o">.</span><span class="n">unit</span><span class="o">.</span><span class="n">name</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span> +</span><span id="L-820"><a href="#L-820"><span class="linenos"> 820</span></a> <span class="n">date</span> <span class="o">=</span> <span class="n">extract_date</span><span class="p">(</span><span class="n">r</span><span class="p">)</span> +</span><span id="L-821"><a href="#L-821"><span class="linenos"> 821</span></a> +</span><span id="L-822"><a href="#L-822"><span class="linenos"> 822</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">date</span><span class="p">:</span> +</span><span id="L-823"><a href="#L-823"><span class="linenos"> 823</span></a> <span class="k">return</span> <span class="n">expression</span> +</span><span id="L-824"><a href="#L-824"><span class="linenos"> 824</span></a> +</span><span id="L-825"><a href="#L-825"><span class="linenos"> 825</span></a> <span class="k">return</span> <span class="n">DATETRUNC_BINARY_COMPARISONS</span><span class="p">[</span><span class="n">comparison</span><span class="p">](</span><span class="n">l</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">date</span><span class="p">,</span> <span class="n">unit</span><span class="p">)</span> <span class="ow">or</span> <span class="n">expression</span> +</span><span id="L-826"><a href="#L-826"><span class="linenos"> 826</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">In</span><span class="p">):</span> +</span><span id="L-827"><a href="#L-827"><span class="linenos"> 827</span></a> <span class="n">l</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span> +</span><span id="L-828"><a href="#L-828"><span class="linenos"> 828</span></a> <span class="n">rs</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">expressions</span> +</span><span id="L-829"><a href="#L-829"><span class="linenos"> 829</span></a> +</span><span id="L-830"><a href="#L-830"><span class="linenos"> 830</span></a> <span class="k">if</span> <span class="n">rs</span> <span class="ow">and</span> <span class="nb">all</span><span class="p">(</span><span class="n">_is_datetrunc_predicate</span><span class="p">(</span><span class="n">l</span><span class="p">,</span> <span class="n">r</span><span class="p">)</span> <span class="k">for</span> <span class="n">r</span> <span class="ow">in</span> <span class="n">rs</span><span class="p">):</span> +</span><span id="L-831"><a href="#L-831"><span class="linenos"> 831</span></a> <span class="n">l</span> <span class="o">=</span> <span class="n">t</span><span class="o">.</span><span class="n">cast</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">DateTrunc</span><span class="p">,</span> <span class="n">l</span><span class="p">)</span> +</span><span id="L-832"><a href="#L-832"><span class="linenos"> 832</span></a> <span class="n">unit</span> <span class="o">=</span> <span class="n">l</span><span class="o">.</span><span class="n">unit</span><span class="o">.</span><span class="n">name</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span> +</span><span id="L-833"><a href="#L-833"><span class="linenos"> 833</span></a> +</span><span id="L-834"><a href="#L-834"><span class="linenos"> 834</span></a> <span class="n">ranges</span> <span class="o">=</span> <span class="p">[]</span> +</span><span id="L-835"><a href="#L-835"><span class="linenos"> 835</span></a> <span class="k">for</span> <span class="n">r</span> <span class="ow">in</span> <span class="n">rs</span><span class="p">:</span> +</span><span id="L-836"><a href="#L-836"><span class="linenos"> 836</span></a> <span class="n">date</span> <span class="o">=</span> <span class="n">extract_date</span><span class="p">(</span><span class="n">r</span><span class="p">)</span> +</span><span id="L-837"><a href="#L-837"><span class="linenos"> 837</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">date</span><span class="p">:</span> +</span><span id="L-838"><a href="#L-838"><span class="linenos"> 838</span></a> <span class="k">return</span> <span class="n">expression</span> +</span><span id="L-839"><a href="#L-839"><span class="linenos"> 839</span></a> <span class="n">drange</span> <span class="o">=</span> <span class="n">_datetrunc_range</span><span class="p">(</span><span class="n">date</span><span class="p">,</span> <span class="n">unit</span><span class="p">)</span> +</span><span id="L-840"><a href="#L-840"><span class="linenos"> 840</span></a> <span class="k">if</span> <span class="n">drange</span><span class="p">:</span> +</span><span id="L-841"><a href="#L-841"><span class="linenos"> 841</span></a> <span class="n">ranges</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">drange</span><span class="p">)</span> +</span><span id="L-842"><a href="#L-842"><span class="linenos"> 842</span></a> +</span><span id="L-843"><a href="#L-843"><span class="linenos"> 843</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">ranges</span><span class="p">:</span> +</span><span id="L-844"><a href="#L-844"><span class="linenos"> 844</span></a> <span class="k">return</span> <span class="n">expression</span> +</span><span id="L-845"><a href="#L-845"><span class="linenos"> 845</span></a> +</span><span id="L-846"><a href="#L-846"><span class="linenos"> 846</span></a> <span class="n">ranges</span> <span class="o">=</span> <span class="n">merge_ranges</span><span class="p">(</span><span class="n">ranges</span><span class="p">)</span> </span><span id="L-847"><a href="#L-847"><span class="linenos"> 847</span></a> -</span><span id="L-848"><a href="#L-848"><span class="linenos"> 848</span></a><span class="k">def</span> <span class="nf">always_true</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span> -</span><span id="L-849"><a href="#L-849"><span class="linenos"> 849</span></a> <span class="k">return</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Boolean</span><span class="p">)</span> <span class="ow">and</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">)</span> <span class="ow">or</span> <span class="nb">isinstance</span><span class="p">(</span> -</span><span id="L-850"><a href="#L-850"><span class="linenos"> 850</span></a> <span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span> -</span><span id="L-851"><a href="#L-851"><span class="linenos"> 851</span></a> <span class="p">)</span> +</span><span id="L-848"><a href="#L-848"><span class="linenos"> 848</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">or_</span><span class="p">(</span><span class="o">*</span><span class="p">[</span><span class="n">_datetrunc_eq_expression</span><span class="p">(</span><span class="n">l</span><span class="p">,</span> <span class="n">drange</span><span class="p">)</span> <span class="k">for</span> <span class="n">drange</span> <span class="ow">in</span> <span class="n">ranges</span><span class="p">],</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span> +</span><span id="L-849"><a href="#L-849"><span class="linenos"> 849</span></a> +</span><span id="L-850"><a href="#L-850"><span class="linenos"> 850</span></a> <span class="k">return</span> <span class="n">expression</span> +</span><span id="L-851"><a href="#L-851"><span class="linenos"> 851</span></a> </span><span id="L-852"><a href="#L-852"><span class="linenos"> 852</span></a> -</span><span id="L-853"><a href="#L-853"><span class="linenos"> 853</span></a> -</span><span id="L-854"><a href="#L-854"><span class="linenos"> 854</span></a><span class="k">def</span> <span class="nf">is_complement</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">):</span> -</span><span id="L-855"><a href="#L-855"><span class="linenos"> 855</span></a> <span class="k">return</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">)</span> <span class="ow">and</span> <span class="n">b</span><span class="o">.</span><span class="n">this</span> <span class="o">==</span> <span class="n">a</span> -</span><span id="L-856"><a href="#L-856"><span class="linenos"> 856</span></a> -</span><span id="L-857"><a href="#L-857"><span class="linenos"> 857</span></a> -</span><span id="L-858"><a href="#L-858"><span class="linenos"> 858</span></a><span class="k">def</span> <span class="nf">is_false</span><span class="p">(</span><span class="n">a</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="nb">bool</span><span class="p">:</span> -</span><span id="L-859"><a href="#L-859"><span class="linenos"> 859</span></a> <span class="k">return</span> <span class="nb">type</span><span class="p">(</span><span class="n">a</span><span class="p">)</span> <span class="ow">is</span> <span class="n">exp</span><span class="o">.</span><span class="n">Boolean</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">a</span><span class="o">.</span><span class="n">this</span> -</span><span id="L-860"><a href="#L-860"><span class="linenos"> 860</span></a> -</span><span id="L-861"><a href="#L-861"><span class="linenos"> 861</span></a> -</span><span id="L-862"><a href="#L-862"><span class="linenos"> 862</span></a><span class="k">def</span> <span class="nf">is_null</span><span class="p">(</span><span class="n">a</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="nb">bool</span><span class="p">:</span> -</span><span id="L-863"><a href="#L-863"><span class="linenos"> 863</span></a> <span class="k">return</span> <span class="nb">type</span><span class="p">(</span><span class="n">a</span><span class="p">)</span> <span class="ow">is</span> <span class="n">exp</span><span class="o">.</span><span class="n">Null</span> -</span><span id="L-864"><a href="#L-864"><span class="linenos"> 864</span></a> -</span><span id="L-865"><a href="#L-865"><span class="linenos"> 865</span></a> -</span><span id="L-866"><a href="#L-866"><span class="linenos"> 866</span></a><span class="k">def</span> <span class="nf">eval_boolean</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">):</span> -</span><span id="L-867"><a href="#L-867"><span class="linenos"> 867</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">EQ</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Is</span><span class="p">)):</span> -</span><span id="L-868"><a href="#L-868"><span class="linenos"> 868</span></a> <span class="k">return</span> <span class="n">boolean_literal</span><span class="p">(</span><span class="n">a</span> <span class="o">==</span> <span class="n">b</span><span class="p">)</span> -</span><span id="L-869"><a href="#L-869"><span class="linenos"> 869</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">NEQ</span><span class="p">):</span> -</span><span id="L-870"><a href="#L-870"><span class="linenos"> 870</span></a> <span class="k">return</span> <span class="n">boolean_literal</span><span class="p">(</span><span class="n">a</span> <span class="o">!=</span> <span class="n">b</span><span class="p">)</span> -</span><span id="L-871"><a href="#L-871"><span class="linenos"> 871</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">GT</span><span class="p">):</span> -</span><span id="L-872"><a href="#L-872"><span class="linenos"> 872</span></a> <span class="k">return</span> <span class="n">boolean_literal</span><span class="p">(</span><span class="n">a</span> <span class="o">></span> <span class="n">b</span><span class="p">)</span> -</span><span id="L-873"><a href="#L-873"><span class="linenos"> 873</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">GTE</span><span class="p">):</span> -</span><span id="L-874"><a href="#L-874"><span class="linenos"> 874</span></a> <span class="k">return</span> <span class="n">boolean_literal</span><span class="p">(</span><span class="n">a</span> <span class="o">>=</span> <span class="n">b</span><span class="p">)</span> -</span><span id="L-875"><a href="#L-875"><span class="linenos"> 875</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">LT</span><span class="p">):</span> -</span><span id="L-876"><a href="#L-876"><span class="linenos"> 876</span></a> <span class="k">return</span> <span class="n">boolean_literal</span><span class="p">(</span><span class="n">a</span> <span class="o"><</span> <span class="n">b</span><span class="p">)</span> -</span><span id="L-877"><a href="#L-877"><span class="linenos"> 877</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">LTE</span><span class="p">):</span> -</span><span id="L-878"><a href="#L-878"><span class="linenos"> 878</span></a> <span class="k">return</span> <span class="n">boolean_literal</span><span class="p">(</span><span class="n">a</span> <span class="o"><=</span> <span class="n">b</span><span class="p">)</span> -</span><span id="L-879"><a href="#L-879"><span class="linenos"> 879</span></a> <span class="k">return</span> <span class="kc">None</span> -</span><span id="L-880"><a href="#L-880"><span class="linenos"> 880</span></a> -</span><span id="L-881"><a href="#L-881"><span class="linenos"> 881</span></a> -</span><span id="L-882"><a href="#L-882"><span class="linenos"> 882</span></a><span class="k">def</span> <span class="nf">cast_as_date</span><span class="p">(</span><span class="n">value</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Any</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">]:</span> -</span><span id="L-883"><a href="#L-883"><span class="linenos"> 883</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="p">):</span> -</span><span id="L-884"><a href="#L-884"><span class="linenos"> 884</span></a> <span class="k">return</span> <span class="n">value</span><span class="o">.</span><span class="n">date</span><span class="p">()</span> -</span><span id="L-885"><a href="#L-885"><span class="linenos"> 885</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">):</span> -</span><span id="L-886"><a href="#L-886"><span class="linenos"> 886</span></a> <span class="k">return</span> <span class="n">value</span> -</span><span id="L-887"><a href="#L-887"><span class="linenos"> 887</span></a> <span class="k">try</span><span class="p">:</span> -</span><span id="L-888"><a href="#L-888"><span class="linenos"> 888</span></a> <span class="k">return</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="o">.</span><span class="n">fromisoformat</span><span class="p">(</span><span class="n">value</span><span class="p">)</span><span class="o">.</span><span class="n">date</span><span class="p">()</span> -</span><span id="L-889"><a href="#L-889"><span class="linenos"> 889</span></a> <span class="k">except</span> <span class="ne">ValueError</span><span class="p">:</span> -</span><span id="L-890"><a href="#L-890"><span class="linenos"> 890</span></a> <span class="k">return</span> <span class="kc">None</span> -</span><span id="L-891"><a href="#L-891"><span class="linenos"> 891</span></a> +</span><span id="L-853"><a href="#L-853"><span class="linenos"> 853</span></a><span class="c1"># CROSS joins result in an empty table if the right table is empty.</span> +</span><span id="L-854"><a href="#L-854"><span class="linenos"> 854</span></a><span class="c1"># So we can only simplify certain types of joins to CROSS.</span> +</span><span id="L-855"><a href="#L-855"><span class="linenos"> 855</span></a><span class="c1"># Or in other words, LEFT JOIN x ON TRUE != CROSS JOIN x</span> +</span><span id="L-856"><a href="#L-856"><span class="linenos"> 856</span></a><span class="n">JOINS</span> <span class="o">=</span> <span class="p">{</span> +</span><span id="L-857"><a href="#L-857"><span class="linenos"> 857</span></a> <span class="p">(</span><span class="s2">""</span><span class="p">,</span> <span class="s2">""</span><span class="p">),</span> +</span><span id="L-858"><a href="#L-858"><span class="linenos"> 858</span></a> <span class="p">(</span><span class="s2">""</span><span class="p">,</span> <span class="s2">"INNER"</span><span class="p">),</span> +</span><span id="L-859"><a href="#L-859"><span class="linenos"> 859</span></a> <span class="p">(</span><span class="s2">"RIGHT"</span><span class="p">,</span> <span class="s2">""</span><span class="p">),</span> +</span><span id="L-860"><a href="#L-860"><span class="linenos"> 860</span></a> <span class="p">(</span><span class="s2">"RIGHT"</span><span class="p">,</span> <span class="s2">"OUTER"</span><span class="p">),</span> +</span><span id="L-861"><a href="#L-861"><span class="linenos"> 861</span></a><span class="p">}</span> +</span><span id="L-862"><a href="#L-862"><span class="linenos"> 862</span></a> +</span><span id="L-863"><a href="#L-863"><span class="linenos"> 863</span></a> +</span><span id="L-864"><a href="#L-864"><span class="linenos"> 864</span></a><span class="k">def</span> <span class="nf">remove_where_true</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span> +</span><span id="L-865"><a href="#L-865"><span class="linenos"> 865</span></a> <span class="k">for</span> <span class="n">where</span> <span class="ow">in</span> <span class="n">expression</span><span class="o">.</span><span class="n">find_all</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Where</span><span class="p">):</span> +</span><span id="L-866"><a href="#L-866"><span class="linenos"> 866</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">where</span><span class="o">.</span><span class="n">this</span><span class="p">):</span> +</span><span id="L-867"><a href="#L-867"><span class="linenos"> 867</span></a> <span class="n">where</span><span class="o">.</span><span class="n">parent</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"where"</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span> +</span><span id="L-868"><a href="#L-868"><span class="linenos"> 868</span></a> <span class="k">for</span> <span class="n">join</span> <span class="ow">in</span> <span class="n">expression</span><span class="o">.</span><span class="n">find_all</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Join</span><span class="p">):</span> +</span><span id="L-869"><a href="#L-869"><span class="linenos"> 869</span></a> <span class="k">if</span> <span class="p">(</span> +</span><span id="L-870"><a href="#L-870"><span class="linenos"> 870</span></a> <span class="n">always_true</span><span class="p">(</span><span class="n">join</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"on"</span><span class="p">))</span> +</span><span id="L-871"><a href="#L-871"><span class="linenos"> 871</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="n">join</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"using"</span><span class="p">)</span> +</span><span id="L-872"><a href="#L-872"><span class="linenos"> 872</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="n">join</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"method"</span><span class="p">)</span> +</span><span id="L-873"><a href="#L-873"><span class="linenos"> 873</span></a> <span class="ow">and</span> <span class="p">(</span><span class="n">join</span><span class="o">.</span><span class="n">side</span><span class="p">,</span> <span class="n">join</span><span class="o">.</span><span class="n">kind</span><span class="p">)</span> <span class="ow">in</span> <span class="n">JOINS</span> +</span><span id="L-874"><a href="#L-874"><span class="linenos"> 874</span></a> <span class="p">):</span> +</span><span id="L-875"><a href="#L-875"><span class="linenos"> 875</span></a> <span class="n">join</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"on"</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span> +</span><span id="L-876"><a href="#L-876"><span class="linenos"> 876</span></a> <span class="n">join</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"side"</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span> +</span><span id="L-877"><a href="#L-877"><span class="linenos"> 877</span></a> <span class="n">join</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"kind"</span><span class="p">,</span> <span class="s2">"CROSS"</span><span class="p">)</span> +</span><span id="L-878"><a href="#L-878"><span class="linenos"> 878</span></a> +</span><span id="L-879"><a href="#L-879"><span class="linenos"> 879</span></a> +</span><span id="L-880"><a href="#L-880"><span class="linenos"> 880</span></a><span class="k">def</span> <span class="nf">always_true</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span> +</span><span id="L-881"><a href="#L-881"><span class="linenos"> 881</span></a> <span class="k">return</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Boolean</span><span class="p">)</span> <span class="ow">and</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">)</span> <span class="ow">or</span> <span class="nb">isinstance</span><span class="p">(</span> +</span><span id="L-882"><a href="#L-882"><span class="linenos"> 882</span></a> <span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span> +</span><span id="L-883"><a href="#L-883"><span class="linenos"> 883</span></a> <span class="p">)</span> +</span><span id="L-884"><a href="#L-884"><span class="linenos"> 884</span></a> +</span><span id="L-885"><a href="#L-885"><span class="linenos"> 885</span></a> +</span><span id="L-886"><a href="#L-886"><span class="linenos"> 886</span></a><span class="k">def</span> <span class="nf">always_false</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span> +</span><span id="L-887"><a href="#L-887"><span class="linenos"> 887</span></a> <span class="k">return</span> <span class="n">is_false</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span> <span class="ow">or</span> <span class="n">is_null</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span> +</span><span id="L-888"><a href="#L-888"><span class="linenos"> 888</span></a> +</span><span id="L-889"><a href="#L-889"><span class="linenos"> 889</span></a> +</span><span id="L-890"><a href="#L-890"><span class="linenos"> 890</span></a><span class="k">def</span> <span class="nf">is_complement</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">):</span> +</span><span id="L-891"><a href="#L-891"><span class="linenos"> 891</span></a> <span class="k">return</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">)</span> <span class="ow">and</span> <span class="n">b</span><span class="o">.</span><span class="n">this</span> <span class="o">==</span> <span class="n">a</span> </span><span id="L-892"><a href="#L-892"><span class="linenos"> 892</span></a> -</span><span id="L-893"><a href="#L-893"><span class="linenos"> 893</span></a><span class="k">def</span> <span class="nf">cast_as_datetime</span><span class="p">(</span><span class="n">value</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Any</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="p">]:</span> -</span><span id="L-894"><a href="#L-894"><span class="linenos"> 894</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="p">):</span> -</span><span id="L-895"><a href="#L-895"><span class="linenos"> 895</span></a> <span class="k">return</span> <span class="n">value</span> -</span><span id="L-896"><a href="#L-896"><span class="linenos"> 896</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">):</span> -</span><span id="L-897"><a href="#L-897"><span class="linenos"> 897</span></a> <span class="k">return</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="p">(</span><span class="n">year</span><span class="o">=</span><span class="n">value</span><span class="o">.</span><span class="n">year</span><span class="p">,</span> <span class="n">month</span><span class="o">=</span><span class="n">value</span><span class="o">.</span><span class="n">month</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="n">value</span><span class="o">.</span><span class="n">day</span><span class="p">)</span> -</span><span id="L-898"><a href="#L-898"><span class="linenos"> 898</span></a> <span class="k">try</span><span class="p">:</span> -</span><span id="L-899"><a href="#L-899"><span class="linenos"> 899</span></a> <span class="k">return</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="o">.</span><span class="n">fromisoformat</span><span class="p">(</span><span class="n">value</span><span class="p">)</span> -</span><span id="L-900"><a href="#L-900"><span class="linenos"> 900</span></a> <span class="k">except</span> <span class="ne">ValueError</span><span class="p">:</span> -</span><span id="L-901"><a href="#L-901"><span class="linenos"> 901</span></a> <span class="k">return</span> <span class="kc">None</span> -</span><span id="L-902"><a href="#L-902"><span class="linenos"> 902</span></a> -</span><span id="L-903"><a href="#L-903"><span class="linenos"> 903</span></a> -</span><span id="L-904"><a href="#L-904"><span class="linenos"> 904</span></a><span class="k">def</span> <span class="nf">cast_value</span><span class="p">(</span><span class="n">value</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Any</span><span class="p">,</span> <span class="n">to</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Union</span><span class="p">[</span><span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">]]:</span> -</span><span id="L-905"><a href="#L-905"><span class="linenos"> 905</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">value</span><span class="p">:</span> -</span><span id="L-906"><a href="#L-906"><span class="linenos"> 906</span></a> <span class="k">return</span> <span class="kc">None</span> -</span><span id="L-907"><a href="#L-907"><span class="linenos"> 907</span></a> <span class="k">if</span> <span class="n">to</span><span class="o">.</span><span class="n">is_type</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">Type</span><span class="o">.</span><span class="n">DATE</span><span class="p">):</span> -</span><span id="L-908"><a href="#L-908"><span class="linenos"> 908</span></a> <span class="k">return</span> <span class="n">cast_as_date</span><span class="p">(</span><span class="n">value</span><span class="p">)</span> -</span><span id="L-909"><a href="#L-909"><span class="linenos"> 909</span></a> <span class="k">if</span> <span class="n">to</span><span class="o">.</span><span class="n">is_type</span><span class="p">(</span><span class="o">*</span><span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">TEMPORAL_TYPES</span><span class="p">):</span> -</span><span id="L-910"><a href="#L-910"><span class="linenos"> 910</span></a> <span class="k">return</span> <span class="n">cast_as_datetime</span><span class="p">(</span><span class="n">value</span><span class="p">)</span> -</span><span id="L-911"><a href="#L-911"><span class="linenos"> 911</span></a> <span class="k">return</span> <span class="kc">None</span> -</span><span id="L-912"><a href="#L-912"><span class="linenos"> 912</span></a> -</span><span id="L-913"><a href="#L-913"><span class="linenos"> 913</span></a> -</span><span id="L-914"><a href="#L-914"><span class="linenos"> 914</span></a><span class="k">def</span> <span class="nf">extract_date</span><span class="p">(</span><span class="n">cast</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Union</span><span class="p">[</span><span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">]]:</span> -</span><span id="L-915"><a href="#L-915"><span class="linenos"> 915</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">cast</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Cast</span><span class="p">):</span> -</span><span id="L-916"><a href="#L-916"><span class="linenos"> 916</span></a> <span class="n">to</span> <span class="o">=</span> <span class="n">cast</span><span class="o">.</span><span class="n">to</span> -</span><span id="L-917"><a href="#L-917"><span class="linenos"> 917</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">cast</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">TsOrDsToDate</span><span class="p">):</span> -</span><span id="L-918"><a href="#L-918"><span class="linenos"> 918</span></a> <span class="n">to</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">build</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">Type</span><span class="o">.</span><span class="n">DATE</span><span class="p">)</span> -</span><span id="L-919"><a href="#L-919"><span class="linenos"> 919</span></a> <span class="k">else</span><span class="p">:</span> -</span><span id="L-920"><a href="#L-920"><span class="linenos"> 920</span></a> <span class="k">return</span> <span class="kc">None</span> -</span><span id="L-921"><a href="#L-921"><span class="linenos"> 921</span></a> -</span><span id="L-922"><a href="#L-922"><span class="linenos"> 922</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">cast</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="p">):</span> -</span><span id="L-923"><a href="#L-923"><span class="linenos"> 923</span></a> <span class="n">value</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Any</span> <span class="o">=</span> <span class="n">cast</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">name</span> -</span><span id="L-924"><a href="#L-924"><span class="linenos"> 924</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">cast</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Cast</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">TsOrDsToDate</span><span class="p">)):</span> -</span><span id="L-925"><a href="#L-925"><span class="linenos"> 925</span></a> <span class="n">value</span> <span class="o">=</span> <span class="n">extract_date</span><span class="p">(</span><span class="n">cast</span><span class="o">.</span><span class="n">this</span><span class="p">)</span> -</span><span id="L-926"><a href="#L-926"><span class="linenos"> 926</span></a> <span class="k">else</span><span class="p">:</span> -</span><span id="L-927"><a href="#L-927"><span class="linenos"> 927</span></a> <span class="k">return</span> <span class="kc">None</span> -</span><span id="L-928"><a href="#L-928"><span class="linenos"> 928</span></a> <span class="k">return</span> <span class="n">cast_value</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">to</span><span class="p">)</span> -</span><span id="L-929"><a href="#L-929"><span class="linenos"> 929</span></a> -</span><span id="L-930"><a href="#L-930"><span class="linenos"> 930</span></a> -</span><span id="L-931"><a href="#L-931"><span class="linenos"> 931</span></a><span class="k">def</span> <span class="nf">_is_date_literal</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="nb">bool</span><span class="p">:</span> -</span><span id="L-932"><a href="#L-932"><span class="linenos"> 932</span></a> <span class="k">return</span> <span class="n">extract_date</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span> -</span><span id="L-933"><a href="#L-933"><span class="linenos"> 933</span></a> -</span><span id="L-934"><a href="#L-934"><span class="linenos"> 934</span></a> -</span><span id="L-935"><a href="#L-935"><span class="linenos"> 935</span></a><span class="k">def</span> <span class="nf">extract_interval</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span> -</span><span id="L-936"><a href="#L-936"><span class="linenos"> 936</span></a> <span class="n">n</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">name</span><span class="p">)</span> -</span><span id="L-937"><a href="#L-937"><span class="linenos"> 937</span></a> <span class="n">unit</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">text</span><span class="p">(</span><span class="s2">"unit"</span><span class="p">)</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span> +</span><span id="L-893"><a href="#L-893"><span class="linenos"> 893</span></a> +</span><span id="L-894"><a href="#L-894"><span class="linenos"> 894</span></a><span class="k">def</span> <span class="nf">is_false</span><span class="p">(</span><span class="n">a</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="nb">bool</span><span class="p">:</span> +</span><span id="L-895"><a href="#L-895"><span class="linenos"> 895</span></a> <span class="k">return</span> <span class="nb">type</span><span class="p">(</span><span class="n">a</span><span class="p">)</span> <span class="ow">is</span> <span class="n">exp</span><span class="o">.</span><span class="n">Boolean</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">a</span><span class="o">.</span><span class="n">this</span> +</span><span id="L-896"><a href="#L-896"><span class="linenos"> 896</span></a> +</span><span id="L-897"><a href="#L-897"><span class="linenos"> 897</span></a> +</span><span id="L-898"><a href="#L-898"><span class="linenos"> 898</span></a><span class="k">def</span> <span class="nf">is_null</span><span class="p">(</span><span class="n">a</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="nb">bool</span><span class="p">:</span> +</span><span id="L-899"><a href="#L-899"><span class="linenos"> 899</span></a> <span class="k">return</span> <span class="nb">type</span><span class="p">(</span><span class="n">a</span><span class="p">)</span> <span class="ow">is</span> <span class="n">exp</span><span class="o">.</span><span class="n">Null</span> +</span><span id="L-900"><a href="#L-900"><span class="linenos"> 900</span></a> +</span><span id="L-901"><a href="#L-901"><span class="linenos"> 901</span></a> +</span><span id="L-902"><a href="#L-902"><span class="linenos"> 902</span></a><span class="k">def</span> <span class="nf">eval_boolean</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">):</span> +</span><span id="L-903"><a href="#L-903"><span class="linenos"> 903</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">EQ</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Is</span><span class="p">)):</span> +</span><span id="L-904"><a href="#L-904"><span class="linenos"> 904</span></a> <span class="k">return</span> <span class="n">boolean_literal</span><span class="p">(</span><span class="n">a</span> <span class="o">==</span> <span class="n">b</span><span class="p">)</span> +</span><span id="L-905"><a href="#L-905"><span class="linenos"> 905</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">NEQ</span><span class="p">):</span> +</span><span id="L-906"><a href="#L-906"><span class="linenos"> 906</span></a> <span class="k">return</span> <span class="n">boolean_literal</span><span class="p">(</span><span class="n">a</span> <span class="o">!=</span> <span class="n">b</span><span class="p">)</span> +</span><span id="L-907"><a href="#L-907"><span class="linenos"> 907</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">GT</span><span class="p">):</span> +</span><span id="L-908"><a href="#L-908"><span class="linenos"> 908</span></a> <span class="k">return</span> <span class="n">boolean_literal</span><span class="p">(</span><span class="n">a</span> <span class="o">></span> <span class="n">b</span><span class="p">)</span> +</span><span id="L-909"><a href="#L-909"><span class="linenos"> 909</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">GTE</span><span class="p">):</span> +</span><span id="L-910"><a href="#L-910"><span class="linenos"> 910</span></a> <span class="k">return</span> <span class="n">boolean_literal</span><span class="p">(</span><span class="n">a</span> <span class="o">>=</span> <span class="n">b</span><span class="p">)</span> +</span><span id="L-911"><a href="#L-911"><span class="linenos"> 911</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">LT</span><span class="p">):</span> +</span><span id="L-912"><a href="#L-912"><span class="linenos"> 912</span></a> <span class="k">return</span> <span class="n">boolean_literal</span><span class="p">(</span><span class="n">a</span> <span class="o"><</span> <span class="n">b</span><span class="p">)</span> +</span><span id="L-913"><a href="#L-913"><span class="linenos"> 913</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">LTE</span><span class="p">):</span> +</span><span id="L-914"><a href="#L-914"><span class="linenos"> 914</span></a> <span class="k">return</span> <span class="n">boolean_literal</span><span class="p">(</span><span class="n">a</span> <span class="o"><=</span> <span class="n">b</span><span class="p">)</span> +</span><span id="L-915"><a href="#L-915"><span class="linenos"> 915</span></a> <span class="k">return</span> <span class="kc">None</span> +</span><span id="L-916"><a href="#L-916"><span class="linenos"> 916</span></a> +</span><span id="L-917"><a href="#L-917"><span class="linenos"> 917</span></a> +</span><span id="L-918"><a href="#L-918"><span class="linenos"> 918</span></a><span class="k">def</span> <span class="nf">cast_as_date</span><span class="p">(</span><span class="n">value</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Any</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">]:</span> +</span><span id="L-919"><a href="#L-919"><span class="linenos"> 919</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="p">):</span> +</span><span id="L-920"><a href="#L-920"><span class="linenos"> 920</span></a> <span class="k">return</span> <span class="n">value</span><span class="o">.</span><span class="n">date</span><span class="p">()</span> +</span><span id="L-921"><a href="#L-921"><span class="linenos"> 921</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">):</span> +</span><span id="L-922"><a href="#L-922"><span class="linenos"> 922</span></a> <span class="k">return</span> <span class="n">value</span> +</span><span id="L-923"><a href="#L-923"><span class="linenos"> 923</span></a> <span class="k">try</span><span class="p">:</span> +</span><span id="L-924"><a href="#L-924"><span class="linenos"> 924</span></a> <span class="k">return</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="o">.</span><span class="n">fromisoformat</span><span class="p">(</span><span class="n">value</span><span class="p">)</span><span class="o">.</span><span class="n">date</span><span class="p">()</span> +</span><span id="L-925"><a href="#L-925"><span class="linenos"> 925</span></a> <span class="k">except</span> <span class="ne">ValueError</span><span class="p">:</span> +</span><span id="L-926"><a href="#L-926"><span class="linenos"> 926</span></a> <span class="k">return</span> <span class="kc">None</span> +</span><span id="L-927"><a href="#L-927"><span class="linenos"> 927</span></a> +</span><span id="L-928"><a href="#L-928"><span class="linenos"> 928</span></a> +</span><span id="L-929"><a href="#L-929"><span class="linenos"> 929</span></a><span class="k">def</span> <span class="nf">cast_as_datetime</span><span class="p">(</span><span class="n">value</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Any</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="p">]:</span> +</span><span id="L-930"><a href="#L-930"><span class="linenos"> 930</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="p">):</span> +</span><span id="L-931"><a href="#L-931"><span class="linenos"> 931</span></a> <span class="k">return</span> <span class="n">value</span> +</span><span id="L-932"><a href="#L-932"><span class="linenos"> 932</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">):</span> +</span><span id="L-933"><a href="#L-933"><span class="linenos"> 933</span></a> <span class="k">return</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="p">(</span><span class="n">year</span><span class="o">=</span><span class="n">value</span><span class="o">.</span><span class="n">year</span><span class="p">,</span> <span class="n">month</span><span class="o">=</span><span class="n">value</span><span class="o">.</span><span class="n">month</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="n">value</span><span class="o">.</span><span class="n">day</span><span class="p">)</span> +</span><span id="L-934"><a href="#L-934"><span class="linenos"> 934</span></a> <span class="k">try</span><span class="p">:</span> +</span><span id="L-935"><a href="#L-935"><span class="linenos"> 935</span></a> <span class="k">return</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="o">.</span><span class="n">fromisoformat</span><span class="p">(</span><span class="n">value</span><span class="p">)</span> +</span><span id="L-936"><a href="#L-936"><span class="linenos"> 936</span></a> <span class="k">except</span> <span class="ne">ValueError</span><span class="p">:</span> +</span><span id="L-937"><a href="#L-937"><span class="linenos"> 937</span></a> <span class="k">return</span> <span class="kc">None</span> </span><span id="L-938"><a href="#L-938"><span class="linenos"> 938</span></a> -</span><span id="L-939"><a href="#L-939"><span class="linenos"> 939</span></a> <span class="k">try</span><span class="p">:</span> -</span><span id="L-940"><a href="#L-940"><span class="linenos"> 940</span></a> <span class="k">return</span> <span class="n">interval</span><span class="p">(</span><span class="n">unit</span><span class="p">,</span> <span class="n">n</span><span class="p">)</span> -</span><span id="L-941"><a href="#L-941"><span class="linenos"> 941</span></a> <span class="k">except</span> <span class="p">(</span><span class="n">UnsupportedUnit</span><span class="p">,</span> <span class="ne">ModuleNotFoundError</span><span class="p">):</span> +</span><span id="L-939"><a href="#L-939"><span class="linenos"> 939</span></a> +</span><span id="L-940"><a href="#L-940"><span class="linenos"> 940</span></a><span class="k">def</span> <span class="nf">cast_value</span><span class="p">(</span><span class="n">value</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Any</span><span class="p">,</span> <span class="n">to</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Union</span><span class="p">[</span><span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">]]:</span> +</span><span id="L-941"><a href="#L-941"><span class="linenos"> 941</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">value</span><span class="p">:</span> </span><span id="L-942"><a href="#L-942"><span class="linenos"> 942</span></a> <span class="k">return</span> <span class="kc">None</span> -</span><span id="L-943"><a href="#L-943"><span class="linenos"> 943</span></a> -</span><span id="L-944"><a href="#L-944"><span class="linenos"> 944</span></a> -</span><span id="L-945"><a href="#L-945"><span class="linenos"> 945</span></a><span class="k">def</span> <span class="nf">date_literal</span><span class="p">(</span><span class="n">date</span><span class="p">):</span> -</span><span id="L-946"><a href="#L-946"><span class="linenos"> 946</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">cast</span><span class="p">(</span> -</span><span id="L-947"><a href="#L-947"><span class="linenos"> 947</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="o">.</span><span class="n">string</span><span class="p">(</span><span class="n">date</span><span class="p">),</span> -</span><span id="L-948"><a href="#L-948"><span class="linenos"> 948</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">Type</span><span class="o">.</span><span class="n">DATETIME</span> -</span><span id="L-949"><a href="#L-949"><span class="linenos"> 949</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">date</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="p">)</span> -</span><span id="L-950"><a href="#L-950"><span class="linenos"> 950</span></a> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">Type</span><span class="o">.</span><span class="n">DATE</span><span class="p">,</span> -</span><span id="L-951"><a href="#L-951"><span class="linenos"> 951</span></a> <span class="p">)</span> -</span><span id="L-952"><a href="#L-952"><span class="linenos"> 952</span></a> -</span><span id="L-953"><a href="#L-953"><span class="linenos"> 953</span></a> -</span><span id="L-954"><a href="#L-954"><span class="linenos"> 954</span></a><span class="k">def</span> <span class="nf">interval</span><span class="p">(</span><span class="n">unit</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">n</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="mi">1</span><span class="p">):</span> -</span><span id="L-955"><a href="#L-955"><span class="linenos"> 955</span></a> <span class="kn">from</span> <span class="nn">dateutil.relativedelta</span> <span class="kn">import</span> <span class="n">relativedelta</span> -</span><span id="L-956"><a href="#L-956"><span class="linenos"> 956</span></a> -</span><span id="L-957"><a href="#L-957"><span class="linenos"> 957</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"year"</span><span class="p">:</span> -</span><span id="L-958"><a href="#L-958"><span class="linenos"> 958</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">years</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span> -</span><span id="L-959"><a href="#L-959"><span class="linenos"> 959</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"quarter"</span><span class="p">:</span> -</span><span id="L-960"><a href="#L-960"><span class="linenos"> 960</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">months</span><span class="o">=</span><span class="mi">3</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span> -</span><span id="L-961"><a href="#L-961"><span class="linenos"> 961</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"month"</span><span class="p">:</span> -</span><span id="L-962"><a href="#L-962"><span class="linenos"> 962</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">months</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span> -</span><span id="L-963"><a href="#L-963"><span class="linenos"> 963</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"week"</span><span class="p">:</span> -</span><span id="L-964"><a href="#L-964"><span class="linenos"> 964</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">weeks</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span> -</span><span id="L-965"><a href="#L-965"><span class="linenos"> 965</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"day"</span><span class="p">:</span> -</span><span id="L-966"><a href="#L-966"><span class="linenos"> 966</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">days</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span> -</span><span id="L-967"><a href="#L-967"><span class="linenos"> 967</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"hour"</span><span class="p">:</span> -</span><span id="L-968"><a href="#L-968"><span class="linenos"> 968</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">hours</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span> -</span><span id="L-969"><a href="#L-969"><span class="linenos"> 969</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"minute"</span><span class="p">:</span> -</span><span id="L-970"><a href="#L-970"><span class="linenos"> 970</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">minutes</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span> -</span><span id="L-971"><a href="#L-971"><span class="linenos"> 971</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"second"</span><span class="p">:</span> -</span><span id="L-972"><a href="#L-972"><span class="linenos"> 972</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">seconds</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span> -</span><span id="L-973"><a href="#L-973"><span class="linenos"> 973</span></a> -</span><span id="L-974"><a href="#L-974"><span class="linenos"> 974</span></a> <span class="k">raise</span> <span class="n">UnsupportedUnit</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Unsupported unit: </span><span class="si">{</span><span class="n">unit</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> -</span><span id="L-975"><a href="#L-975"><span class="linenos"> 975</span></a> -</span><span id="L-976"><a href="#L-976"><span class="linenos"> 976</span></a> -</span><span id="L-977"><a href="#L-977"><span class="linenos"> 977</span></a><span class="k">def</span> <span class="nf">date_floor</span><span class="p">(</span><span class="n">d</span><span class="p">:</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span> <span class="n">unit</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-></span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">:</span> -</span><span id="L-978"><a href="#L-978"><span class="linenos"> 978</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"year"</span><span class="p">:</span> -</span><span id="L-979"><a href="#L-979"><span class="linenos"> 979</span></a> <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">month</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span> -</span><span id="L-980"><a href="#L-980"><span class="linenos"> 980</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"quarter"</span><span class="p">:</span> -</span><span id="L-981"><a href="#L-981"><span class="linenos"> 981</span></a> <span class="k">if</span> <span class="n">d</span><span class="o">.</span><span class="n">month</span> <span class="o"><=</span> <span class="mi">3</span><span class="p">:</span> -</span><span id="L-982"><a href="#L-982"><span class="linenos"> 982</span></a> <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">month</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span> -</span><span id="L-983"><a href="#L-983"><span class="linenos"> 983</span></a> <span class="k">elif</span> <span class="n">d</span><span class="o">.</span><span class="n">month</span> <span class="o"><=</span> <span class="mi">6</span><span class="p">:</span> -</span><span id="L-984"><a href="#L-984"><span class="linenos"> 984</span></a> <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">month</span><span class="o">=</span><span class="mi">4</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span> -</span><span id="L-985"><a href="#L-985"><span class="linenos"> 985</span></a> <span class="k">elif</span> <span class="n">d</span><span class="o">.</span><span class="n">month</span> <span class="o"><=</span> <span class="mi">9</span><span class="p">:</span> -</span><span id="L-986"><a href="#L-986"><span class="linenos"> 986</span></a> <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">month</span><span class="o">=</span><span class="mi">7</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span> -</span><span id="L-987"><a href="#L-987"><span class="linenos"> 987</span></a> <span class="k">else</span><span class="p">:</span> -</span><span id="L-988"><a href="#L-988"><span class="linenos"> 988</span></a> <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">month</span><span class="o">=</span><span class="mi">10</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span> -</span><span id="L-989"><a href="#L-989"><span class="linenos"> 989</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"month"</span><span class="p">:</span> -</span><span id="L-990"><a href="#L-990"><span class="linenos"> 990</span></a> <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">month</span><span class="o">=</span><span class="n">d</span><span class="o">.</span><span class="n">month</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span> -</span><span id="L-991"><a href="#L-991"><span class="linenos"> 991</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"week"</span><span class="p">:</span> -</span><span id="L-992"><a href="#L-992"><span class="linenos"> 992</span></a> <span class="c1"># Assuming week starts on Monday (0) and ends on Sunday (6)</span> -</span><span id="L-993"><a href="#L-993"><span class="linenos"> 993</span></a> <span class="k">return</span> <span class="n">d</span> <span class="o">-</span> <span class="n">datetime</span><span class="o">.</span><span class="n">timedelta</span><span class="p">(</span><span class="n">days</span><span class="o">=</span><span class="n">d</span><span class="o">.</span><span class="n">weekday</span><span class="p">())</span> -</span><span id="L-994"><a href="#L-994"><span class="linenos"> 994</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"day"</span><span class="p">:</span> -</span><span id="L-995"><a href="#L-995"><span class="linenos"> 995</span></a> <span class="k">return</span> <span class="n">d</span> -</span><span id="L-996"><a href="#L-996"><span class="linenos"> 996</span></a> -</span><span id="L-997"><a href="#L-997"><span class="linenos"> 997</span></a> <span class="k">raise</span> <span class="n">UnsupportedUnit</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Unsupported unit: </span><span class="si">{</span><span class="n">unit</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> -</span><span id="L-998"><a href="#L-998"><span class="linenos"> 998</span></a> -</span><span id="L-999"><a href="#L-999"><span class="linenos"> 999</span></a> -</span><span id="L-1000"><a href="#L-1000"><span class="linenos">1000</span></a><span class="k">def</span> <span class="nf">date_ceil</span><span class="p">(</span><span class="n">d</span><span class="p">:</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span> <span class="n">unit</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-></span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">:</span> -</span><span id="L-1001"><a href="#L-1001"><span class="linenos">1001</span></a> <span class="n">floor</span> <span class="o">=</span> <span class="n">date_floor</span><span class="p">(</span><span class="n">d</span><span class="p">,</span> <span class="n">unit</span><span class="p">)</span> -</span><span id="L-1002"><a href="#L-1002"><span class="linenos">1002</span></a> -</span><span id="L-1003"><a href="#L-1003"><span class="linenos">1003</span></a> <span class="k">if</span> <span class="n">floor</span> <span class="o">==</span> <span class="n">d</span><span class="p">:</span> -</span><span id="L-1004"><a href="#L-1004"><span class="linenos">1004</span></a> <span class="k">return</span> <span class="n">d</span> -</span><span id="L-1005"><a href="#L-1005"><span class="linenos">1005</span></a> -</span><span id="L-1006"><a href="#L-1006"><span class="linenos">1006</span></a> <span class="k">return</span> <span class="n">floor</span> <span class="o">+</span> <span class="n">interval</span><span class="p">(</span><span class="n">unit</span><span class="p">)</span> -</span><span id="L-1007"><a href="#L-1007"><span class="linenos">1007</span></a> -</span><span id="L-1008"><a href="#L-1008"><span class="linenos">1008</span></a> -</span><span id="L-1009"><a href="#L-1009"><span class="linenos">1009</span></a><span class="k">def</span> <span class="nf">boolean_literal</span><span class="p">(</span><span class="n">condition</span><span class="p">):</span> -</span><span id="L-1010"><a href="#L-1010"><span class="linenos">1010</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> <span class="k">if</span> <span class="n">condition</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> +</span><span id="L-943"><a href="#L-943"><span class="linenos"> 943</span></a> <span class="k">if</span> <span class="n">to</span><span class="o">.</span><span class="n">is_type</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">Type</span><span class="o">.</span><span class="n">DATE</span><span class="p">):</span> +</span><span id="L-944"><a href="#L-944"><span class="linenos"> 944</span></a> <span class="k">return</span> <span class="n">cast_as_date</span><span class="p">(</span><span class="n">value</span><span class="p">)</span> +</span><span id="L-945"><a href="#L-945"><span class="linenos"> 945</span></a> <span class="k">if</span> <span class="n">to</span><span class="o">.</span><span class="n">is_type</span><span class="p">(</span><span class="o">*</span><span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">TEMPORAL_TYPES</span><span class="p">):</span> +</span><span id="L-946"><a href="#L-946"><span class="linenos"> 946</span></a> <span class="k">return</span> <span class="n">cast_as_datetime</span><span class="p">(</span><span class="n">value</span><span class="p">)</span> +</span><span id="L-947"><a href="#L-947"><span class="linenos"> 947</span></a> <span class="k">return</span> <span class="kc">None</span> +</span><span id="L-948"><a href="#L-948"><span class="linenos"> 948</span></a> +</span><span id="L-949"><a href="#L-949"><span class="linenos"> 949</span></a> +</span><span id="L-950"><a href="#L-950"><span class="linenos"> 950</span></a><span class="k">def</span> <span class="nf">extract_date</span><span class="p">(</span><span class="n">cast</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Union</span><span class="p">[</span><span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">]]:</span> +</span><span id="L-951"><a href="#L-951"><span class="linenos"> 951</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">cast</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Cast</span><span class="p">):</span> +</span><span id="L-952"><a href="#L-952"><span class="linenos"> 952</span></a> <span class="n">to</span> <span class="o">=</span> <span class="n">cast</span><span class="o">.</span><span class="n">to</span> +</span><span id="L-953"><a href="#L-953"><span class="linenos"> 953</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">cast</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">TsOrDsToDate</span><span class="p">):</span> +</span><span id="L-954"><a href="#L-954"><span class="linenos"> 954</span></a> <span class="n">to</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">build</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">Type</span><span class="o">.</span><span class="n">DATE</span><span class="p">)</span> +</span><span id="L-955"><a href="#L-955"><span class="linenos"> 955</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="L-956"><a href="#L-956"><span class="linenos"> 956</span></a> <span class="k">return</span> <span class="kc">None</span> +</span><span id="L-957"><a href="#L-957"><span class="linenos"> 957</span></a> +</span><span id="L-958"><a href="#L-958"><span class="linenos"> 958</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">cast</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="p">):</span> +</span><span id="L-959"><a href="#L-959"><span class="linenos"> 959</span></a> <span class="n">value</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Any</span> <span class="o">=</span> <span class="n">cast</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">name</span> +</span><span id="L-960"><a href="#L-960"><span class="linenos"> 960</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">cast</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Cast</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">TsOrDsToDate</span><span class="p">)):</span> +</span><span id="L-961"><a href="#L-961"><span class="linenos"> 961</span></a> <span class="n">value</span> <span class="o">=</span> <span class="n">extract_date</span><span class="p">(</span><span class="n">cast</span><span class="o">.</span><span class="n">this</span><span class="p">)</span> +</span><span id="L-962"><a href="#L-962"><span class="linenos"> 962</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="L-963"><a href="#L-963"><span class="linenos"> 963</span></a> <span class="k">return</span> <span class="kc">None</span> +</span><span id="L-964"><a href="#L-964"><span class="linenos"> 964</span></a> <span class="k">return</span> <span class="n">cast_value</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">to</span><span class="p">)</span> +</span><span id="L-965"><a href="#L-965"><span class="linenos"> 965</span></a> +</span><span id="L-966"><a href="#L-966"><span class="linenos"> 966</span></a> +</span><span id="L-967"><a href="#L-967"><span class="linenos"> 967</span></a><span class="k">def</span> <span class="nf">_is_date_literal</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="nb">bool</span><span class="p">:</span> +</span><span id="L-968"><a href="#L-968"><span class="linenos"> 968</span></a> <span class="k">return</span> <span class="n">extract_date</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span> +</span><span id="L-969"><a href="#L-969"><span class="linenos"> 969</span></a> +</span><span id="L-970"><a href="#L-970"><span class="linenos"> 970</span></a> +</span><span id="L-971"><a href="#L-971"><span class="linenos"> 971</span></a><span class="k">def</span> <span class="nf">extract_interval</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span> +</span><span id="L-972"><a href="#L-972"><span class="linenos"> 972</span></a> <span class="n">n</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">name</span><span class="p">)</span> +</span><span id="L-973"><a href="#L-973"><span class="linenos"> 973</span></a> <span class="n">unit</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">text</span><span class="p">(</span><span class="s2">"unit"</span><span class="p">)</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span> +</span><span id="L-974"><a href="#L-974"><span class="linenos"> 974</span></a> +</span><span id="L-975"><a href="#L-975"><span class="linenos"> 975</span></a> <span class="k">try</span><span class="p">:</span> +</span><span id="L-976"><a href="#L-976"><span class="linenos"> 976</span></a> <span class="k">return</span> <span class="n">interval</span><span class="p">(</span><span class="n">unit</span><span class="p">,</span> <span class="n">n</span><span class="p">)</span> +</span><span id="L-977"><a href="#L-977"><span class="linenos"> 977</span></a> <span class="k">except</span> <span class="p">(</span><span class="n">UnsupportedUnit</span><span class="p">,</span> <span class="ne">ModuleNotFoundError</span><span class="p">):</span> +</span><span id="L-978"><a href="#L-978"><span class="linenos"> 978</span></a> <span class="k">return</span> <span class="kc">None</span> +</span><span id="L-979"><a href="#L-979"><span class="linenos"> 979</span></a> +</span><span id="L-980"><a href="#L-980"><span class="linenos"> 980</span></a> +</span><span id="L-981"><a href="#L-981"><span class="linenos"> 981</span></a><span class="k">def</span> <span class="nf">date_literal</span><span class="p">(</span><span class="n">date</span><span class="p">):</span> +</span><span id="L-982"><a href="#L-982"><span class="linenos"> 982</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">cast</span><span class="p">(</span> +</span><span id="L-983"><a href="#L-983"><span class="linenos"> 983</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="o">.</span><span class="n">string</span><span class="p">(</span><span class="n">date</span><span class="p">),</span> +</span><span id="L-984"><a href="#L-984"><span class="linenos"> 984</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">Type</span><span class="o">.</span><span class="n">DATETIME</span> +</span><span id="L-985"><a href="#L-985"><span class="linenos"> 985</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">date</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="p">)</span> +</span><span id="L-986"><a href="#L-986"><span class="linenos"> 986</span></a> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">Type</span><span class="o">.</span><span class="n">DATE</span><span class="p">,</span> +</span><span id="L-987"><a href="#L-987"><span class="linenos"> 987</span></a> <span class="p">)</span> +</span><span id="L-988"><a href="#L-988"><span class="linenos"> 988</span></a> +</span><span id="L-989"><a href="#L-989"><span class="linenos"> 989</span></a> +</span><span id="L-990"><a href="#L-990"><span class="linenos"> 990</span></a><span class="k">def</span> <span class="nf">interval</span><span class="p">(</span><span class="n">unit</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">n</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="mi">1</span><span class="p">):</span> +</span><span id="L-991"><a href="#L-991"><span class="linenos"> 991</span></a> <span class="kn">from</span> <span class="nn">dateutil.relativedelta</span> <span class="kn">import</span> <span class="n">relativedelta</span> +</span><span id="L-992"><a href="#L-992"><span class="linenos"> 992</span></a> +</span><span id="L-993"><a href="#L-993"><span class="linenos"> 993</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"year"</span><span class="p">:</span> +</span><span id="L-994"><a href="#L-994"><span class="linenos"> 994</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">years</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span> +</span><span id="L-995"><a href="#L-995"><span class="linenos"> 995</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"quarter"</span><span class="p">:</span> +</span><span id="L-996"><a href="#L-996"><span class="linenos"> 996</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">months</span><span class="o">=</span><span class="mi">3</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span> +</span><span id="L-997"><a href="#L-997"><span class="linenos"> 997</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"month"</span><span class="p">:</span> +</span><span id="L-998"><a href="#L-998"><span class="linenos"> 998</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">months</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span> +</span><span id="L-999"><a href="#L-999"><span class="linenos"> 999</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"week"</span><span class="p">:</span> +</span><span id="L-1000"><a href="#L-1000"><span class="linenos">1000</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">weeks</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span> +</span><span id="L-1001"><a href="#L-1001"><span class="linenos">1001</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"day"</span><span class="p">:</span> +</span><span id="L-1002"><a href="#L-1002"><span class="linenos">1002</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">days</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span> +</span><span id="L-1003"><a href="#L-1003"><span class="linenos">1003</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"hour"</span><span class="p">:</span> +</span><span id="L-1004"><a href="#L-1004"><span class="linenos">1004</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">hours</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span> +</span><span id="L-1005"><a href="#L-1005"><span class="linenos">1005</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"minute"</span><span class="p">:</span> +</span><span id="L-1006"><a href="#L-1006"><span class="linenos">1006</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">minutes</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span> +</span><span id="L-1007"><a href="#L-1007"><span class="linenos">1007</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"second"</span><span class="p">:</span> +</span><span id="L-1008"><a href="#L-1008"><span class="linenos">1008</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">seconds</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span> +</span><span id="L-1009"><a href="#L-1009"><span class="linenos">1009</span></a> +</span><span id="L-1010"><a href="#L-1010"><span class="linenos">1010</span></a> <span class="k">raise</span> <span class="n">UnsupportedUnit</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Unsupported unit: </span><span class="si">{</span><span class="n">unit</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> </span><span id="L-1011"><a href="#L-1011"><span class="linenos">1011</span></a> </span><span id="L-1012"><a href="#L-1012"><span class="linenos">1012</span></a> -</span><span id="L-1013"><a href="#L-1013"><span class="linenos">1013</span></a><span class="k">def</span> <span class="nf">_flat_simplify</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">simplifier</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span> -</span><span id="L-1014"><a href="#L-1014"><span class="linenos">1014</span></a> <span class="k">if</span> <span class="n">root</span> <span class="ow">or</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">same_parent</span><span class="p">:</span> -</span><span id="L-1015"><a href="#L-1015"><span class="linenos">1015</span></a> <span class="n">operands</span> <span class="o">=</span> <span class="p">[]</span> -</span><span id="L-1016"><a href="#L-1016"><span class="linenos">1016</span></a> <span class="n">queue</span> <span class="o">=</span> <span class="n">deque</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">flatten</span><span class="p">(</span><span class="n">unnest</span><span class="o">=</span><span class="kc">False</span><span class="p">))</span> -</span><span id="L-1017"><a href="#L-1017"><span class="linenos">1017</span></a> <span class="n">size</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="n">queue</span><span class="p">)</span> -</span><span id="L-1018"><a href="#L-1018"><span class="linenos">1018</span></a> -</span><span id="L-1019"><a href="#L-1019"><span class="linenos">1019</span></a> <span class="k">while</span> <span class="n">queue</span><span class="p">:</span> -</span><span id="L-1020"><a href="#L-1020"><span class="linenos">1020</span></a> <span class="n">a</span> <span class="o">=</span> <span class="n">queue</span><span class="o">.</span><span class="n">popleft</span><span class="p">()</span> -</span><span id="L-1021"><a href="#L-1021"><span class="linenos">1021</span></a> -</span><span id="L-1022"><a href="#L-1022"><span class="linenos">1022</span></a> <span class="k">for</span> <span class="n">b</span> <span class="ow">in</span> <span class="n">queue</span><span class="p">:</span> -</span><span id="L-1023"><a href="#L-1023"><span class="linenos">1023</span></a> <span class="n">result</span> <span class="o">=</span> <span class="n">simplifier</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">)</span> -</span><span id="L-1024"><a href="#L-1024"><span class="linenos">1024</span></a> -</span><span id="L-1025"><a href="#L-1025"><span class="linenos">1025</span></a> <span class="k">if</span> <span class="n">result</span> <span class="ow">and</span> <span class="n">result</span> <span class="ow">is</span> <span class="ow">not</span> <span class="n">expression</span><span class="p">:</span> -</span><span id="L-1026"><a href="#L-1026"><span class="linenos">1026</span></a> <span class="n">queue</span><span class="o">.</span><span class="n">remove</span><span class="p">(</span><span class="n">b</span><span class="p">)</span> -</span><span id="L-1027"><a href="#L-1027"><span class="linenos">1027</span></a> <span class="n">queue</span><span class="o">.</span><span class="n">appendleft</span><span class="p">(</span><span class="n">result</span><span class="p">)</span> -</span><span id="L-1028"><a href="#L-1028"><span class="linenos">1028</span></a> <span class="k">break</span> -</span><span id="L-1029"><a href="#L-1029"><span class="linenos">1029</span></a> <span class="k">else</span><span class="p">:</span> -</span><span id="L-1030"><a href="#L-1030"><span class="linenos">1030</span></a> <span class="n">operands</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">a</span><span class="p">)</span> -</span><span id="L-1031"><a href="#L-1031"><span class="linenos">1031</span></a> -</span><span id="L-1032"><a href="#L-1032"><span class="linenos">1032</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">operands</span><span class="p">)</span> <span class="o"><</span> <span class="n">size</span><span class="p">:</span> -</span><span id="L-1033"><a href="#L-1033"><span class="linenos">1033</span></a> <span class="k">return</span> <span class="n">functools</span><span class="o">.</span><span class="n">reduce</span><span class="p">(</span> -</span><span id="L-1034"><a href="#L-1034"><span class="linenos">1034</span></a> <span class="k">lambda</span> <span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">:</span> <span class="n">expression</span><span class="o">.</span><span class="vm">__class__</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">a</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="n">b</span><span class="p">),</span> <span class="n">operands</span> -</span><span id="L-1035"><a href="#L-1035"><span class="linenos">1035</span></a> <span class="p">)</span> -</span><span id="L-1036"><a href="#L-1036"><span class="linenos">1036</span></a> <span class="k">return</span> <span class="n">expression</span> +</span><span id="L-1013"><a href="#L-1013"><span class="linenos">1013</span></a><span class="k">def</span> <span class="nf">date_floor</span><span class="p">(</span><span class="n">d</span><span class="p">:</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span> <span class="n">unit</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-></span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">:</span> +</span><span id="L-1014"><a href="#L-1014"><span class="linenos">1014</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"year"</span><span class="p">:</span> +</span><span id="L-1015"><a href="#L-1015"><span class="linenos">1015</span></a> <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">month</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span> +</span><span id="L-1016"><a href="#L-1016"><span class="linenos">1016</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"quarter"</span><span class="p">:</span> +</span><span id="L-1017"><a href="#L-1017"><span class="linenos">1017</span></a> <span class="k">if</span> <span class="n">d</span><span class="o">.</span><span class="n">month</span> <span class="o"><=</span> <span class="mi">3</span><span class="p">:</span> +</span><span id="L-1018"><a href="#L-1018"><span class="linenos">1018</span></a> <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">month</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span> +</span><span id="L-1019"><a href="#L-1019"><span class="linenos">1019</span></a> <span class="k">elif</span> <span class="n">d</span><span class="o">.</span><span class="n">month</span> <span class="o"><=</span> <span class="mi">6</span><span class="p">:</span> +</span><span id="L-1020"><a href="#L-1020"><span class="linenos">1020</span></a> <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">month</span><span class="o">=</span><span class="mi">4</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span> +</span><span id="L-1021"><a href="#L-1021"><span class="linenos">1021</span></a> <span class="k">elif</span> <span class="n">d</span><span class="o">.</span><span class="n">month</span> <span class="o"><=</span> <span class="mi">9</span><span class="p">:</span> +</span><span id="L-1022"><a href="#L-1022"><span class="linenos">1022</span></a> <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">month</span><span class="o">=</span><span class="mi">7</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span> +</span><span id="L-1023"><a href="#L-1023"><span class="linenos">1023</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="L-1024"><a href="#L-1024"><span class="linenos">1024</span></a> <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">month</span><span class="o">=</span><span class="mi">10</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span> +</span><span id="L-1025"><a href="#L-1025"><span class="linenos">1025</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"month"</span><span class="p">:</span> +</span><span id="L-1026"><a href="#L-1026"><span class="linenos">1026</span></a> <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">month</span><span class="o">=</span><span class="n">d</span><span class="o">.</span><span class="n">month</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span> +</span><span id="L-1027"><a href="#L-1027"><span class="linenos">1027</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"week"</span><span class="p">:</span> +</span><span id="L-1028"><a href="#L-1028"><span class="linenos">1028</span></a> <span class="c1"># Assuming week starts on Monday (0) and ends on Sunday (6)</span> +</span><span id="L-1029"><a href="#L-1029"><span class="linenos">1029</span></a> <span class="k">return</span> <span class="n">d</span> <span class="o">-</span> <span class="n">datetime</span><span class="o">.</span><span class="n">timedelta</span><span class="p">(</span><span class="n">days</span><span class="o">=</span><span class="n">d</span><span class="o">.</span><span class="n">weekday</span><span class="p">())</span> +</span><span id="L-1030"><a href="#L-1030"><span class="linenos">1030</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"day"</span><span class="p">:</span> +</span><span id="L-1031"><a href="#L-1031"><span class="linenos">1031</span></a> <span class="k">return</span> <span class="n">d</span> +</span><span id="L-1032"><a href="#L-1032"><span class="linenos">1032</span></a> +</span><span id="L-1033"><a href="#L-1033"><span class="linenos">1033</span></a> <span class="k">raise</span> <span class="n">UnsupportedUnit</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Unsupported unit: </span><span class="si">{</span><span class="n">unit</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> +</span><span id="L-1034"><a href="#L-1034"><span class="linenos">1034</span></a> +</span><span id="L-1035"><a href="#L-1035"><span class="linenos">1035</span></a> +</span><span id="L-1036"><a href="#L-1036"><span class="linenos">1036</span></a><span class="k">def</span> <span class="nf">date_ceil</span><span class="p">(</span><span class="n">d</span><span class="p">:</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span> <span class="n">unit</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-></span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">:</span> +</span><span id="L-1037"><a href="#L-1037"><span class="linenos">1037</span></a> <span class="n">floor</span> <span class="o">=</span> <span class="n">date_floor</span><span class="p">(</span><span class="n">d</span><span class="p">,</span> <span class="n">unit</span><span class="p">)</span> +</span><span id="L-1038"><a href="#L-1038"><span class="linenos">1038</span></a> +</span><span id="L-1039"><a href="#L-1039"><span class="linenos">1039</span></a> <span class="k">if</span> <span class="n">floor</span> <span class="o">==</span> <span class="n">d</span><span class="p">:</span> +</span><span id="L-1040"><a href="#L-1040"><span class="linenos">1040</span></a> <span class="k">return</span> <span class="n">d</span> +</span><span id="L-1041"><a href="#L-1041"><span class="linenos">1041</span></a> +</span><span id="L-1042"><a href="#L-1042"><span class="linenos">1042</span></a> <span class="k">return</span> <span class="n">floor</span> <span class="o">+</span> <span class="n">interval</span><span class="p">(</span><span class="n">unit</span><span class="p">)</span> +</span><span id="L-1043"><a href="#L-1043"><span class="linenos">1043</span></a> +</span><span id="L-1044"><a href="#L-1044"><span class="linenos">1044</span></a> +</span><span id="L-1045"><a href="#L-1045"><span class="linenos">1045</span></a><span class="k">def</span> <span class="nf">boolean_literal</span><span class="p">(</span><span class="n">condition</span><span class="p">):</span> +</span><span id="L-1046"><a href="#L-1046"><span class="linenos">1046</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> <span class="k">if</span> <span class="n">condition</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> +</span><span id="L-1047"><a href="#L-1047"><span class="linenos">1047</span></a> +</span><span id="L-1048"><a href="#L-1048"><span class="linenos">1048</span></a> +</span><span id="L-1049"><a href="#L-1049"><span class="linenos">1049</span></a><span class="k">def</span> <span class="nf">_flat_simplify</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">simplifier</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span> +</span><span id="L-1050"><a href="#L-1050"><span class="linenos">1050</span></a> <span class="k">if</span> <span class="n">root</span> <span class="ow">or</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">same_parent</span><span class="p">:</span> +</span><span id="L-1051"><a href="#L-1051"><span class="linenos">1051</span></a> <span class="n">operands</span> <span class="o">=</span> <span class="p">[]</span> +</span><span id="L-1052"><a href="#L-1052"><span class="linenos">1052</span></a> <span class="n">queue</span> <span class="o">=</span> <span class="n">deque</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">flatten</span><span class="p">(</span><span class="n">unnest</span><span class="o">=</span><span class="kc">False</span><span class="p">))</span> +</span><span id="L-1053"><a href="#L-1053"><span class="linenos">1053</span></a> <span class="n">size</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="n">queue</span><span class="p">)</span> +</span><span id="L-1054"><a href="#L-1054"><span class="linenos">1054</span></a> +</span><span id="L-1055"><a href="#L-1055"><span class="linenos">1055</span></a> <span class="k">while</span> <span class="n">queue</span><span class="p">:</span> +</span><span id="L-1056"><a href="#L-1056"><span class="linenos">1056</span></a> <span class="n">a</span> <span class="o">=</span> <span class="n">queue</span><span class="o">.</span><span class="n">popleft</span><span class="p">()</span> +</span><span id="L-1057"><a href="#L-1057"><span class="linenos">1057</span></a> +</span><span id="L-1058"><a href="#L-1058"><span class="linenos">1058</span></a> <span class="k">for</span> <span class="n">b</span> <span class="ow">in</span> <span class="n">queue</span><span class="p">:</span> +</span><span id="L-1059"><a href="#L-1059"><span class="linenos">1059</span></a> <span class="n">result</span> <span class="o">=</span> <span class="n">simplifier</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">)</span> +</span><span id="L-1060"><a href="#L-1060"><span class="linenos">1060</span></a> +</span><span id="L-1061"><a href="#L-1061"><span class="linenos">1061</span></a> <span class="k">if</span> <span class="n">result</span> <span class="ow">and</span> <span class="n">result</span> <span class="ow">is</span> <span class="ow">not</span> <span class="n">expression</span><span class="p">:</span> +</span><span id="L-1062"><a href="#L-1062"><span class="linenos">1062</span></a> <span class="n">queue</span><span class="o">.</span><span class="n">remove</span><span class="p">(</span><span class="n">b</span><span class="p">)</span> +</span><span id="L-1063"><a href="#L-1063"><span class="linenos">1063</span></a> <span class="n">queue</span><span class="o">.</span><span class="n">appendleft</span><span class="p">(</span><span class="n">result</span><span class="p">)</span> +</span><span id="L-1064"><a href="#L-1064"><span class="linenos">1064</span></a> <span class="k">break</span> +</span><span id="L-1065"><a href="#L-1065"><span class="linenos">1065</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="L-1066"><a href="#L-1066"><span class="linenos">1066</span></a> <span class="n">operands</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">a</span><span class="p">)</span> +</span><span id="L-1067"><a href="#L-1067"><span class="linenos">1067</span></a> +</span><span id="L-1068"><a href="#L-1068"><span class="linenos">1068</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">operands</span><span class="p">)</span> <span class="o"><</span> <span class="n">size</span><span class="p">:</span> +</span><span id="L-1069"><a href="#L-1069"><span class="linenos">1069</span></a> <span class="k">return</span> <span class="n">functools</span><span class="o">.</span><span class="n">reduce</span><span class="p">(</span> +</span><span id="L-1070"><a href="#L-1070"><span class="linenos">1070</span></a> <span class="k">lambda</span> <span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">:</span> <span class="n">expression</span><span class="o">.</span><span class="vm">__class__</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">a</span><span class="p">,</span> <span class="n">expression</span><span class="o">=</span><span class="n">b</span><span class="p">),</span> <span class="n">operands</span> +</span><span id="L-1071"><a href="#L-1071"><span class="linenos">1071</span></a> <span class="p">)</span> +</span><span id="L-1072"><a href="#L-1072"><span class="linenos">1072</span></a> <span class="k">return</span> <span class="n">expression</span> </span></pre></div> @@ -1298,83 +1340,84 @@ </div> <a class="headerlink" href="#simplify"></a> - <div class="pdoc-code codehilite"><pre><span></span><span id="simplify-23"><a href="#simplify-23"><span class="linenos">23</span></a><span class="k">def</span> <span class="nf">simplify</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">constant_propagation</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span> -</span><span id="simplify-24"><a href="#simplify-24"><span class="linenos">24</span></a><span class="w"> </span><span class="sd">"""</span> -</span><span id="simplify-25"><a href="#simplify-25"><span class="linenos">25</span></a><span class="sd"> Rewrite sqlglot AST to simplify expressions.</span> -</span><span id="simplify-26"><a href="#simplify-26"><span class="linenos">26</span></a> -</span><span id="simplify-27"><a href="#simplify-27"><span class="linenos">27</span></a><span class="sd"> Example:</span> -</span><span id="simplify-28"><a href="#simplify-28"><span class="linenos">28</span></a><span class="sd"> >>> import sqlglot</span> -</span><span id="simplify-29"><a href="#simplify-29"><span class="linenos">29</span></a><span class="sd"> >>> expression = sqlglot.parse_one("TRUE AND TRUE")</span> -</span><span id="simplify-30"><a href="#simplify-30"><span class="linenos">30</span></a><span class="sd"> >>> simplify(expression).sql()</span> -</span><span id="simplify-31"><a href="#simplify-31"><span class="linenos">31</span></a><span class="sd"> 'TRUE'</span> -</span><span id="simplify-32"><a href="#simplify-32"><span class="linenos">32</span></a> -</span><span id="simplify-33"><a href="#simplify-33"><span class="linenos">33</span></a><span class="sd"> Args:</span> -</span><span id="simplify-34"><a href="#simplify-34"><span class="linenos">34</span></a><span class="sd"> expression (sqlglot.Expression): expression to simplify</span> -</span><span id="simplify-35"><a href="#simplify-35"><span class="linenos">35</span></a><span class="sd"> constant_propagation: whether or not the constant propagation rule should be used</span> -</span><span id="simplify-36"><a href="#simplify-36"><span class="linenos">36</span></a> -</span><span id="simplify-37"><a href="#simplify-37"><span class="linenos">37</span></a><span class="sd"> Returns:</span> -</span><span id="simplify-38"><a href="#simplify-38"><span class="linenos">38</span></a><span class="sd"> sqlglot.Expression: simplified expression</span> -</span><span id="simplify-39"><a href="#simplify-39"><span class="linenos">39</span></a><span class="sd"> """</span> -</span><span id="simplify-40"><a href="#simplify-40"><span class="linenos">40</span></a> -</span><span id="simplify-41"><a href="#simplify-41"><span class="linenos">41</span></a> <span class="n">generate</span> <span class="o">=</span> <span class="n">cached_generator</span><span class="p">()</span> -</span><span id="simplify-42"><a href="#simplify-42"><span class="linenos">42</span></a> -</span><span id="simplify-43"><a href="#simplify-43"><span class="linenos">43</span></a> <span class="c1"># group by expressions cannot be simplified, for example</span> -</span><span id="simplify-44"><a href="#simplify-44"><span class="linenos">44</span></a> <span class="c1"># select x + 1 + 1 FROM y GROUP BY x + 1 + 1</span> -</span><span id="simplify-45"><a href="#simplify-45"><span class="linenos">45</span></a> <span class="c1"># the projection must exactly match the group by key</span> -</span><span id="simplify-46"><a href="#simplify-46"><span class="linenos">46</span></a> <span class="k">for</span> <span class="n">group</span> <span class="ow">in</span> <span class="n">expression</span><span class="o">.</span><span class="n">find_all</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Group</span><span class="p">):</span> -</span><span id="simplify-47"><a href="#simplify-47"><span class="linenos">47</span></a> <span class="n">select</span> <span class="o">=</span> <span class="n">group</span><span class="o">.</span><span class="n">parent</span> -</span><span id="simplify-48"><a href="#simplify-48"><span class="linenos">48</span></a> <span class="n">groups</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">group</span><span class="o">.</span><span class="n">expressions</span><span class="p">)</span> -</span><span id="simplify-49"><a href="#simplify-49"><span class="linenos">49</span></a> <span class="n">group</span><span class="o">.</span><span class="n">meta</span><span class="p">[</span><span class="n">FINAL</span><span class="p">]</span> <span class="o">=</span> <span class="kc">True</span> -</span><span id="simplify-50"><a href="#simplify-50"><span class="linenos">50</span></a> -</span><span id="simplify-51"><a href="#simplify-51"><span class="linenos">51</span></a> <span class="k">for</span> <span class="n">e</span> <span class="ow">in</span> <span class="n">select</span><span class="o">.</span><span class="n">selects</span><span class="p">:</span> -</span><span id="simplify-52"><a href="#simplify-52"><span class="linenos">52</span></a> <span class="k">for</span> <span class="n">node</span><span class="p">,</span> <span class="o">*</span><span class="n">_</span> <span class="ow">in</span> <span class="n">e</span><span class="o">.</span><span class="n">walk</span><span class="p">():</span> -</span><span id="simplify-53"><a href="#simplify-53"><span class="linenos">53</span></a> <span class="k">if</span> <span class="n">node</span> <span class="ow">in</span> <span class="n">groups</span><span class="p">:</span> -</span><span id="simplify-54"><a href="#simplify-54"><span class="linenos">54</span></a> <span class="n">e</span><span class="o">.</span><span class="n">meta</span><span class="p">[</span><span class="n">FINAL</span><span class="p">]</span> <span class="o">=</span> <span class="kc">True</span> -</span><span id="simplify-55"><a href="#simplify-55"><span class="linenos">55</span></a> <span class="k">break</span> -</span><span id="simplify-56"><a href="#simplify-56"><span class="linenos">56</span></a> -</span><span id="simplify-57"><a href="#simplify-57"><span class="linenos">57</span></a> <span class="n">having</span> <span class="o">=</span> <span class="n">select</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"having"</span><span class="p">)</span> -</span><span id="simplify-58"><a href="#simplify-58"><span class="linenos">58</span></a> <span class="k">if</span> <span class="n">having</span><span class="p">:</span> -</span><span id="simplify-59"><a href="#simplify-59"><span class="linenos">59</span></a> <span class="k">for</span> <span class="n">node</span><span class="p">,</span> <span class="o">*</span><span class="n">_</span> <span class="ow">in</span> <span class="n">having</span><span class="o">.</span><span class="n">walk</span><span class="p">():</span> -</span><span id="simplify-60"><a href="#simplify-60"><span class="linenos">60</span></a> <span class="k">if</span> <span class="n">node</span> <span class="ow">in</span> <span class="n">groups</span><span class="p">:</span> -</span><span id="simplify-61"><a href="#simplify-61"><span class="linenos">61</span></a> <span class="n">having</span><span class="o">.</span><span class="n">meta</span><span class="p">[</span><span class="n">FINAL</span><span class="p">]</span> <span class="o">=</span> <span class="kc">True</span> -</span><span id="simplify-62"><a href="#simplify-62"><span class="linenos">62</span></a> <span class="k">break</span> -</span><span id="simplify-63"><a href="#simplify-63"><span class="linenos">63</span></a> -</span><span id="simplify-64"><a href="#simplify-64"><span class="linenos">64</span></a> <span class="k">def</span> <span class="nf">_simplify</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span> -</span><span id="simplify-65"><a href="#simplify-65"><span class="linenos">65</span></a> <span class="k">if</span> <span class="n">expression</span><span class="o">.</span><span class="n">meta</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">FINAL</span><span class="p">):</span> -</span><span id="simplify-66"><a href="#simplify-66"><span class="linenos">66</span></a> <span class="k">return</span> <span class="n">expression</span> -</span><span id="simplify-67"><a href="#simplify-67"><span class="linenos">67</span></a> -</span><span id="simplify-68"><a href="#simplify-68"><span class="linenos">68</span></a> <span class="c1"># Pre-order transformations</span> -</span><span id="simplify-69"><a href="#simplify-69"><span class="linenos">69</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">expression</span> -</span><span id="simplify-70"><a href="#simplify-70"><span class="linenos">70</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">rewrite_between</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> -</span><span id="simplify-71"><a href="#simplify-71"><span class="linenos">71</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">uniq_sort</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">generate</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span> -</span><span id="simplify-72"><a href="#simplify-72"><span class="linenos">72</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">absorb_and_eliminate</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span> -</span><span id="simplify-73"><a href="#simplify-73"><span class="linenos">73</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_concat</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> -</span><span id="simplify-74"><a href="#simplify-74"><span class="linenos">74</span></a> -</span><span id="simplify-75"><a href="#simplify-75"><span class="linenos">75</span></a> <span class="k">if</span> <span class="n">constant_propagation</span><span class="p">:</span> -</span><span id="simplify-76"><a href="#simplify-76"><span class="linenos">76</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">propagate_constants</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span> -</span><span id="simplify-77"><a href="#simplify-77"><span class="linenos">77</span></a> -</span><span id="simplify-78"><a href="#simplify-78"><span class="linenos">78</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">replace_children</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="k">lambda</span> <span class="n">e</span><span class="p">:</span> <span class="n">_simplify</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="kc">False</span><span class="p">))</span> -</span><span id="simplify-79"><a href="#simplify-79"><span class="linenos">79</span></a> -</span><span id="simplify-80"><a href="#simplify-80"><span class="linenos">80</span></a> <span class="c1"># Post-order transformations</span> -</span><span id="simplify-81"><a href="#simplify-81"><span class="linenos">81</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_not</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> -</span><span id="simplify-82"><a href="#simplify-82"><span class="linenos">82</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">flatten</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> -</span><span id="simplify-83"><a href="#simplify-83"><span class="linenos">83</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_connectors</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span> -</span><span id="simplify-84"><a href="#simplify-84"><span class="linenos">84</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">remove_complements</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span> -</span><span id="simplify-85"><a href="#simplify-85"><span class="linenos">85</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_coalesce</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> -</span><span id="simplify-86"><a href="#simplify-86"><span class="linenos">86</span></a> <span class="n">node</span><span class="o">.</span><span class="n">parent</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">parent</span> -</span><span id="simplify-87"><a href="#simplify-87"><span class="linenos">87</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_literals</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span> -</span><span id="simplify-88"><a href="#simplify-88"><span class="linenos">88</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_equality</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> -</span><span id="simplify-89"><a href="#simplify-89"><span class="linenos">89</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_parens</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> -</span><span id="simplify-90"><a href="#simplify-90"><span class="linenos">90</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_datetrunc_predicate</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> -</span><span id="simplify-91"><a href="#simplify-91"><span class="linenos">91</span></a> -</span><span id="simplify-92"><a href="#simplify-92"><span class="linenos">92</span></a> <span class="k">if</span> <span class="n">root</span><span class="p">:</span> -</span><span id="simplify-93"><a href="#simplify-93"><span class="linenos">93</span></a> <span class="n">expression</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> -</span><span id="simplify-94"><a href="#simplify-94"><span class="linenos">94</span></a> -</span><span id="simplify-95"><a href="#simplify-95"><span class="linenos">95</span></a> <span class="k">return</span> <span class="n">node</span> -</span><span id="simplify-96"><a href="#simplify-96"><span class="linenos">96</span></a> -</span><span id="simplify-97"><a href="#simplify-97"><span class="linenos">97</span></a> <span class="n">expression</span> <span class="o">=</span> <span class="n">while_changing</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">_simplify</span><span class="p">)</span> -</span><span id="simplify-98"><a href="#simplify-98"><span class="linenos">98</span></a> <span class="n">remove_where_true</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span> -</span><span id="simplify-99"><a href="#simplify-99"><span class="linenos">99</span></a> <span class="k">return</span> <span class="n">expression</span> + <div class="pdoc-code codehilite"><pre><span></span><span id="simplify-23"><a href="#simplify-23"><span class="linenos"> 23</span></a><span class="k">def</span> <span class="nf">simplify</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">constant_propagation</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span> +</span><span id="simplify-24"><a href="#simplify-24"><span class="linenos"> 24</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="simplify-25"><a href="#simplify-25"><span class="linenos"> 25</span></a><span class="sd"> Rewrite sqlglot AST to simplify expressions.</span> +</span><span id="simplify-26"><a href="#simplify-26"><span class="linenos"> 26</span></a> +</span><span id="simplify-27"><a href="#simplify-27"><span class="linenos"> 27</span></a><span class="sd"> Example:</span> +</span><span id="simplify-28"><a href="#simplify-28"><span class="linenos"> 28</span></a><span class="sd"> >>> import sqlglot</span> +</span><span id="simplify-29"><a href="#simplify-29"><span class="linenos"> 29</span></a><span class="sd"> >>> expression = sqlglot.parse_one("TRUE AND TRUE")</span> +</span><span id="simplify-30"><a href="#simplify-30"><span class="linenos"> 30</span></a><span class="sd"> >>> simplify(expression).sql()</span> +</span><span id="simplify-31"><a href="#simplify-31"><span class="linenos"> 31</span></a><span class="sd"> 'TRUE'</span> +</span><span id="simplify-32"><a href="#simplify-32"><span class="linenos"> 32</span></a> +</span><span id="simplify-33"><a href="#simplify-33"><span class="linenos"> 33</span></a><span class="sd"> Args:</span> +</span><span id="simplify-34"><a href="#simplify-34"><span class="linenos"> 34</span></a><span class="sd"> expression (sqlglot.Expression): expression to simplify</span> +</span><span id="simplify-35"><a href="#simplify-35"><span class="linenos"> 35</span></a><span class="sd"> constant_propagation: whether or not the constant propagation rule should be used</span> +</span><span id="simplify-36"><a href="#simplify-36"><span class="linenos"> 36</span></a> +</span><span id="simplify-37"><a href="#simplify-37"><span class="linenos"> 37</span></a><span class="sd"> Returns:</span> +</span><span id="simplify-38"><a href="#simplify-38"><span class="linenos"> 38</span></a><span class="sd"> sqlglot.Expression: simplified expression</span> +</span><span id="simplify-39"><a href="#simplify-39"><span class="linenos"> 39</span></a><span class="sd"> """</span> +</span><span id="simplify-40"><a href="#simplify-40"><span class="linenos"> 40</span></a> +</span><span id="simplify-41"><a href="#simplify-41"><span class="linenos"> 41</span></a> <span class="n">generate</span> <span class="o">=</span> <span class="n">cached_generator</span><span class="p">()</span> +</span><span id="simplify-42"><a href="#simplify-42"><span class="linenos"> 42</span></a> +</span><span id="simplify-43"><a href="#simplify-43"><span class="linenos"> 43</span></a> <span class="c1"># group by expressions cannot be simplified, for example</span> +</span><span id="simplify-44"><a href="#simplify-44"><span class="linenos"> 44</span></a> <span class="c1"># select x + 1 + 1 FROM y GROUP BY x + 1 + 1</span> +</span><span id="simplify-45"><a href="#simplify-45"><span class="linenos"> 45</span></a> <span class="c1"># the projection must exactly match the group by key</span> +</span><span id="simplify-46"><a href="#simplify-46"><span class="linenos"> 46</span></a> <span class="k">for</span> <span class="n">group</span> <span class="ow">in</span> <span class="n">expression</span><span class="o">.</span><span class="n">find_all</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Group</span><span class="p">):</span> +</span><span id="simplify-47"><a href="#simplify-47"><span class="linenos"> 47</span></a> <span class="n">select</span> <span class="o">=</span> <span class="n">group</span><span class="o">.</span><span class="n">parent</span> +</span><span id="simplify-48"><a href="#simplify-48"><span class="linenos"> 48</span></a> <span class="n">groups</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">group</span><span class="o">.</span><span class="n">expressions</span><span class="p">)</span> +</span><span id="simplify-49"><a href="#simplify-49"><span class="linenos"> 49</span></a> <span class="n">group</span><span class="o">.</span><span class="n">meta</span><span class="p">[</span><span class="n">FINAL</span><span class="p">]</span> <span class="o">=</span> <span class="kc">True</span> +</span><span id="simplify-50"><a href="#simplify-50"><span class="linenos"> 50</span></a> +</span><span id="simplify-51"><a href="#simplify-51"><span class="linenos"> 51</span></a> <span class="k">for</span> <span class="n">e</span> <span class="ow">in</span> <span class="n">select</span><span class="o">.</span><span class="n">selects</span><span class="p">:</span> +</span><span id="simplify-52"><a href="#simplify-52"><span class="linenos"> 52</span></a> <span class="k">for</span> <span class="n">node</span><span class="p">,</span> <span class="o">*</span><span class="n">_</span> <span class="ow">in</span> <span class="n">e</span><span class="o">.</span><span class="n">walk</span><span class="p">():</span> +</span><span id="simplify-53"><a href="#simplify-53"><span class="linenos"> 53</span></a> <span class="k">if</span> <span class="n">node</span> <span class="ow">in</span> <span class="n">groups</span><span class="p">:</span> +</span><span id="simplify-54"><a href="#simplify-54"><span class="linenos"> 54</span></a> <span class="n">e</span><span class="o">.</span><span class="n">meta</span><span class="p">[</span><span class="n">FINAL</span><span class="p">]</span> <span class="o">=</span> <span class="kc">True</span> +</span><span id="simplify-55"><a href="#simplify-55"><span class="linenos"> 55</span></a> <span class="k">break</span> +</span><span id="simplify-56"><a href="#simplify-56"><span class="linenos"> 56</span></a> +</span><span id="simplify-57"><a href="#simplify-57"><span class="linenos"> 57</span></a> <span class="n">having</span> <span class="o">=</span> <span class="n">select</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"having"</span><span class="p">)</span> +</span><span id="simplify-58"><a href="#simplify-58"><span class="linenos"> 58</span></a> <span class="k">if</span> <span class="n">having</span><span class="p">:</span> +</span><span id="simplify-59"><a href="#simplify-59"><span class="linenos"> 59</span></a> <span class="k">for</span> <span class="n">node</span><span class="p">,</span> <span class="o">*</span><span class="n">_</span> <span class="ow">in</span> <span class="n">having</span><span class="o">.</span><span class="n">walk</span><span class="p">():</span> +</span><span id="simplify-60"><a href="#simplify-60"><span class="linenos"> 60</span></a> <span class="k">if</span> <span class="n">node</span> <span class="ow">in</span> <span class="n">groups</span><span class="p">:</span> +</span><span id="simplify-61"><a href="#simplify-61"><span class="linenos"> 61</span></a> <span class="n">having</span><span class="o">.</span><span class="n">meta</span><span class="p">[</span><span class="n">FINAL</span><span class="p">]</span> <span class="o">=</span> <span class="kc">True</span> +</span><span id="simplify-62"><a href="#simplify-62"><span class="linenos"> 62</span></a> <span class="k">break</span> +</span><span id="simplify-63"><a href="#simplify-63"><span class="linenos"> 63</span></a> +</span><span id="simplify-64"><a href="#simplify-64"><span class="linenos"> 64</span></a> <span class="k">def</span> <span class="nf">_simplify</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span> +</span><span id="simplify-65"><a href="#simplify-65"><span class="linenos"> 65</span></a> <span class="k">if</span> <span class="n">expression</span><span class="o">.</span><span class="n">meta</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">FINAL</span><span class="p">):</span> +</span><span id="simplify-66"><a href="#simplify-66"><span class="linenos"> 66</span></a> <span class="k">return</span> <span class="n">expression</span> +</span><span id="simplify-67"><a href="#simplify-67"><span class="linenos"> 67</span></a> +</span><span id="simplify-68"><a href="#simplify-68"><span class="linenos"> 68</span></a> <span class="c1"># Pre-order transformations</span> +</span><span id="simplify-69"><a href="#simplify-69"><span class="linenos"> 69</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">expression</span> +</span><span id="simplify-70"><a href="#simplify-70"><span class="linenos"> 70</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">rewrite_between</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> +</span><span id="simplify-71"><a href="#simplify-71"><span class="linenos"> 71</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">uniq_sort</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">generate</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span> +</span><span id="simplify-72"><a href="#simplify-72"><span class="linenos"> 72</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">absorb_and_eliminate</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span> +</span><span id="simplify-73"><a href="#simplify-73"><span class="linenos"> 73</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_concat</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> +</span><span id="simplify-74"><a href="#simplify-74"><span class="linenos"> 74</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_conditionals</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> +</span><span id="simplify-75"><a href="#simplify-75"><span class="linenos"> 75</span></a> +</span><span id="simplify-76"><a href="#simplify-76"><span class="linenos"> 76</span></a> <span class="k">if</span> <span class="n">constant_propagation</span><span class="p">:</span> +</span><span id="simplify-77"><a href="#simplify-77"><span class="linenos"> 77</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">propagate_constants</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span> +</span><span id="simplify-78"><a href="#simplify-78"><span class="linenos"> 78</span></a> +</span><span id="simplify-79"><a href="#simplify-79"><span class="linenos"> 79</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">replace_children</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="k">lambda</span> <span class="n">e</span><span class="p">:</span> <span class="n">_simplify</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="kc">False</span><span class="p">))</span> +</span><span id="simplify-80"><a href="#simplify-80"><span class="linenos"> 80</span></a> +</span><span id="simplify-81"><a href="#simplify-81"><span class="linenos"> 81</span></a> <span class="c1"># Post-order transformations</span> +</span><span id="simplify-82"><a href="#simplify-82"><span class="linenos"> 82</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_not</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> +</span><span id="simplify-83"><a href="#simplify-83"><span class="linenos"> 83</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">flatten</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> +</span><span id="simplify-84"><a href="#simplify-84"><span class="linenos"> 84</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_connectors</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span> +</span><span id="simplify-85"><a href="#simplify-85"><span class="linenos"> 85</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">remove_complements</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span> +</span><span id="simplify-86"><a href="#simplify-86"><span class="linenos"> 86</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_coalesce</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> +</span><span id="simplify-87"><a href="#simplify-87"><span class="linenos"> 87</span></a> <span class="n">node</span><span class="o">.</span><span class="n">parent</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">parent</span> +</span><span id="simplify-88"><a href="#simplify-88"><span class="linenos"> 88</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_literals</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span> +</span><span id="simplify-89"><a href="#simplify-89"><span class="linenos"> 89</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_equality</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> +</span><span id="simplify-90"><a href="#simplify-90"><span class="linenos"> 90</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_parens</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> +</span><span id="simplify-91"><a href="#simplify-91"><span class="linenos"> 91</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">simplify_datetrunc_predicate</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> +</span><span id="simplify-92"><a href="#simplify-92"><span class="linenos"> 92</span></a> +</span><span id="simplify-93"><a href="#simplify-93"><span class="linenos"> 93</span></a> <span class="k">if</span> <span class="n">root</span><span class="p">:</span> +</span><span id="simplify-94"><a href="#simplify-94"><span class="linenos"> 94</span></a> <span class="n">expression</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> +</span><span id="simplify-95"><a href="#simplify-95"><span class="linenos"> 95</span></a> +</span><span id="simplify-96"><a href="#simplify-96"><span class="linenos"> 96</span></a> <span class="k">return</span> <span class="n">node</span> +</span><span id="simplify-97"><a href="#simplify-97"><span class="linenos"> 97</span></a> +</span><span id="simplify-98"><a href="#simplify-98"><span class="linenos"> 98</span></a> <span class="n">expression</span> <span class="o">=</span> <span class="n">while_changing</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">_simplify</span><span class="p">)</span> +</span><span id="simplify-99"><a href="#simplify-99"><span class="linenos"> 99</span></a> <span class="n">remove_where_true</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span> +</span><span id="simplify-100"><a href="#simplify-100"><span class="linenos">100</span></a> <span class="k">return</span> <span class="n">expression</span> </span></pre></div> @@ -1419,19 +1462,19 @@ </div> <a class="headerlink" href="#catch"></a> - <div class="pdoc-code codehilite"><pre><span></span><span id="catch-102"><a href="#catch-102"><span class="linenos">102</span></a><span class="k">def</span> <span class="nf">catch</span><span class="p">(</span><span class="o">*</span><span class="n">exceptions</span><span class="p">):</span> -</span><span id="catch-103"><a href="#catch-103"><span class="linenos">103</span></a><span class="w"> </span><span class="sd">"""Decorator that ignores a simplification function if any of `exceptions` are raised"""</span> -</span><span id="catch-104"><a href="#catch-104"><span class="linenos">104</span></a> -</span><span id="catch-105"><a href="#catch-105"><span class="linenos">105</span></a> <span class="k">def</span> <span class="nf">decorator</span><span class="p">(</span><span class="n">func</span><span class="p">):</span> -</span><span id="catch-106"><a href="#catch-106"><span class="linenos">106</span></a> <span class="k">def</span> <span class="nf">wrapped</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span> -</span><span id="catch-107"><a href="#catch-107"><span class="linenos">107</span></a> <span class="k">try</span><span class="p">:</span> -</span><span id="catch-108"><a href="#catch-108"><span class="linenos">108</span></a> <span class="k">return</span> <span class="n">func</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span> -</span><span id="catch-109"><a href="#catch-109"><span class="linenos">109</span></a> <span class="k">except</span> <span class="n">exceptions</span><span class="p">:</span> -</span><span id="catch-110"><a href="#catch-110"><span class="linenos">110</span></a> <span class="k">return</span> <span class="n">expression</span> -</span><span id="catch-111"><a href="#catch-111"><span class="linenos">111</span></a> -</span><span id="catch-112"><a href="#catch-112"><span class="linenos">112</span></a> <span class="k">return</span> <span class="n">wrapped</span> -</span><span id="catch-113"><a href="#catch-113"><span class="linenos">113</span></a> -</span><span id="catch-114"><a href="#catch-114"><span class="linenos">114</span></a> <span class="k">return</span> <span class="n">decorator</span> + <div class="pdoc-code codehilite"><pre><span></span><span id="catch-103"><a href="#catch-103"><span class="linenos">103</span></a><span class="k">def</span> <span class="nf">catch</span><span class="p">(</span><span class="o">*</span><span class="n">exceptions</span><span class="p">):</span> +</span><span id="catch-104"><a href="#catch-104"><span class="linenos">104</span></a><span class="w"> </span><span class="sd">"""Decorator that ignores a simplification function if any of `exceptions` are raised"""</span> +</span><span id="catch-105"><a href="#catch-105"><span class="linenos">105</span></a> +</span><span id="catch-106"><a href="#catch-106"><span class="linenos">106</span></a> <span class="k">def</span> <span class="nf">decorator</span><span class="p">(</span><span class="n">func</span><span class="p">):</span> +</span><span id="catch-107"><a href="#catch-107"><span class="linenos">107</span></a> <span class="k">def</span> <span class="nf">wrapped</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span> +</span><span id="catch-108"><a href="#catch-108"><span class="linenos">108</span></a> <span class="k">try</span><span class="p">:</span> +</span><span id="catch-109"><a href="#catch-109"><span class="linenos">109</span></a> <span class="k">return</span> <span class="n">func</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span> +</span><span id="catch-110"><a href="#catch-110"><span class="linenos">110</span></a> <span class="k">except</span> <span class="n">exceptions</span><span class="p">:</span> +</span><span id="catch-111"><a href="#catch-111"><span class="linenos">111</span></a> <span class="k">return</span> <span class="n">expression</span> +</span><span id="catch-112"><a href="#catch-112"><span class="linenos">112</span></a> +</span><span id="catch-113"><a href="#catch-113"><span class="linenos">113</span></a> <span class="k">return</span> <span class="n">wrapped</span> +</span><span id="catch-114"><a href="#catch-114"><span class="linenos">114</span></a> +</span><span id="catch-115"><a href="#catch-115"><span class="linenos">115</span></a> <span class="k">return</span> <span class="n">decorator</span> </span></pre></div> @@ -1451,18 +1494,18 @@ </div> <a class="headerlink" href="#rewrite_between"></a> - <div class="pdoc-code codehilite"><pre><span></span><span id="rewrite_between-117"><a href="#rewrite_between-117"><span class="linenos">117</span></a><span class="k">def</span> <span class="nf">rewrite_between</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">:</span> -</span><span id="rewrite_between-118"><a href="#rewrite_between-118"><span class="linenos">118</span></a><span class="w"> </span><span class="sd">"""Rewrite x between y and z to x >= y AND x <= z.</span> -</span><span id="rewrite_between-119"><a href="#rewrite_between-119"><span class="linenos">119</span></a> -</span><span id="rewrite_between-120"><a href="#rewrite_between-120"><span class="linenos">120</span></a><span class="sd"> This is done because comparison simplification is only done on lt/lte/gt/gte.</span> -</span><span id="rewrite_between-121"><a href="#rewrite_between-121"><span class="linenos">121</span></a><span class="sd"> """</span> -</span><span id="rewrite_between-122"><a href="#rewrite_between-122"><span class="linenos">122</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Between</span><span class="p">):</span> -</span><span id="rewrite_between-123"><a href="#rewrite_between-123"><span class="linenos">123</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">and_</span><span class="p">(</span> -</span><span id="rewrite_between-124"><a href="#rewrite_between-124"><span class="linenos">124</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">GTE</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">copy</span><span class="p">(),</span> <span class="n">expression</span><span class="o">=</span><span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">"low"</span><span class="p">]),</span> -</span><span id="rewrite_between-125"><a href="#rewrite_between-125"><span class="linenos">125</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">LTE</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">copy</span><span class="p">(),</span> <span class="n">expression</span><span class="o">=</span><span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">"high"</span><span class="p">]),</span> -</span><span id="rewrite_between-126"><a href="#rewrite_between-126"><span class="linenos">126</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> -</span><span id="rewrite_between-127"><a href="#rewrite_between-127"><span class="linenos">127</span></a> <span class="p">)</span> -</span><span id="rewrite_between-128"><a href="#rewrite_between-128"><span class="linenos">128</span></a> <span class="k">return</span> <span class="n">expression</span> + <div class="pdoc-code codehilite"><pre><span></span><span id="rewrite_between-118"><a href="#rewrite_between-118"><span class="linenos">118</span></a><span class="k">def</span> <span class="nf">rewrite_between</span><span class="p">(</span><span class="n">expression</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">:</span> +</span><span id="rewrite_between-119"><a href="#rewrite_between-119"><span class="linenos">119</span></a><span class="w"> </span><span class="sd">"""Rewrite x between y and z to x >= y AND x <= z.</span> +</span><span id="rewrite_between-120"><a href="#rewrite_between-120"><span class="linenos">120</span></a> +</span><span id="rewrite_between-121"><a href="#rewrite_between-121"><span class="linenos">121</span></a><span class="sd"> This is done because comparison simplification is only done on lt/lte/gt/gte.</span> +</span><span id="rewrite_between-122"><a href="#rewrite_between-122"><span class="linenos">122</span></a><span class="sd"> """</span> +</span><span id="rewrite_between-123"><a href="#rewrite_between-123"><span class="linenos">123</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Between</span><span class="p">):</span> +</span><span id="rewrite_between-124"><a href="#rewrite_between-124"><span class="linenos">124</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">and_</span><span class="p">(</span> +</span><span id="rewrite_between-125"><a href="#rewrite_between-125"><span class="linenos">125</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">GTE</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">copy</span><span class="p">(),</span> <span class="n">expression</span><span class="o">=</span><span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">"low"</span><span class="p">]),</span> +</span><span id="rewrite_between-126"><a href="#rewrite_between-126"><span class="linenos">126</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">LTE</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">copy</span><span class="p">(),</span> <span class="n">expression</span><span class="o">=</span><span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">"high"</span><span class="p">]),</span> +</span><span id="rewrite_between-127"><a href="#rewrite_between-127"><span class="linenos">127</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> +</span><span id="rewrite_between-128"><a href="#rewrite_between-128"><span class="linenos">128</span></a> <span class="p">)</span> +</span><span id="rewrite_between-129"><a href="#rewrite_between-129"><span class="linenos">129</span></a> <span class="k">return</span> <span class="n">expression</span> </span></pre></div> @@ -1484,40 +1527,40 @@ </div> <a class="headerlink" href="#simplify_not"></a> - <div class="pdoc-code codehilite"><pre><span></span><span id="simplify_not-131"><a href="#simplify_not-131"><span class="linenos">131</span></a><span class="k">def</span> <span class="nf">simplify_not</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span> -</span><span id="simplify_not-132"><a href="#simplify_not-132"><span class="linenos">132</span></a><span class="w"> </span><span class="sd">"""</span> -</span><span id="simplify_not-133"><a href="#simplify_not-133"><span class="linenos">133</span></a><span class="sd"> Demorgan's Law</span> -</span><span id="simplify_not-134"><a href="#simplify_not-134"><span class="linenos">134</span></a><span class="sd"> NOT (x OR y) -> NOT x AND NOT y</span> -</span><span id="simplify_not-135"><a href="#simplify_not-135"><span class="linenos">135</span></a><span class="sd"> NOT (x AND y) -> NOT x OR NOT y</span> -</span><span id="simplify_not-136"><a href="#simplify_not-136"><span class="linenos">136</span></a><span class="sd"> """</span> -</span><span id="simplify_not-137"><a href="#simplify_not-137"><span class="linenos">137</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">):</span> -</span><span id="simplify_not-138"><a href="#simplify_not-138"><span class="linenos">138</span></a> <span class="k">if</span> <span class="n">is_null</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">):</span> -</span><span id="simplify_not-139"><a href="#simplify_not-139"><span class="linenos">139</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()</span> -</span><span id="simplify_not-140"><a href="#simplify_not-140"><span class="linenos">140</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Paren</span><span class="p">):</span> -</span><span id="simplify_not-141"><a href="#simplify_not-141"><span class="linenos">141</span></a> <span class="n">condition</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">unnest</span><span class="p">()</span> -</span><span id="simplify_not-142"><a href="#simplify_not-142"><span class="linenos">142</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">condition</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">):</span> -</span><span id="simplify_not-143"><a href="#simplify_not-143"><span class="linenos">143</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">or_</span><span class="p">(</span> -</span><span id="simplify_not-144"><a href="#simplify_not-144"><span class="linenos">144</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">not_</span><span class="p">(</span><span class="n">condition</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">),</span> -</span><span id="simplify_not-145"><a href="#simplify_not-145"><span class="linenos">145</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">not_</span><span class="p">(</span><span class="n">condition</span><span class="o">.</span><span class="n">right</span><span class="p">,</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">),</span> -</span><span id="simplify_not-146"><a href="#simplify_not-146"><span class="linenos">146</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> -</span><span id="simplify_not-147"><a href="#simplify_not-147"><span class="linenos">147</span></a> <span class="p">)</span> -</span><span id="simplify_not-148"><a href="#simplify_not-148"><span class="linenos">148</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">condition</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Or</span><span class="p">):</span> -</span><span id="simplify_not-149"><a href="#simplify_not-149"><span class="linenos">149</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">and_</span><span class="p">(</span> -</span><span id="simplify_not-150"><a href="#simplify_not-150"><span class="linenos">150</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">not_</span><span class="p">(</span><span class="n">condition</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">),</span> -</span><span id="simplify_not-151"><a href="#simplify_not-151"><span class="linenos">151</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">not_</span><span class="p">(</span><span class="n">condition</span><span class="o">.</span><span class="n">right</span><span class="p">,</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">),</span> -</span><span id="simplify_not-152"><a href="#simplify_not-152"><span class="linenos">152</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> -</span><span id="simplify_not-153"><a href="#simplify_not-153"><span class="linenos">153</span></a> <span class="p">)</span> -</span><span id="simplify_not-154"><a href="#simplify_not-154"><span class="linenos">154</span></a> <span class="k">if</span> <span class="n">is_null</span><span class="p">(</span><span class="n">condition</span><span class="p">):</span> -</span><span id="simplify_not-155"><a href="#simplify_not-155"><span class="linenos">155</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()</span> -</span><span id="simplify_not-156"><a href="#simplify_not-156"><span class="linenos">156</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">):</span> -</span><span id="simplify_not-157"><a href="#simplify_not-157"><span class="linenos">157</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> -</span><span id="simplify_not-158"><a href="#simplify_not-158"><span class="linenos">158</span></a> <span class="k">if</span> <span class="n">is_false</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">):</span> -</span><span id="simplify_not-159"><a href="#simplify_not-159"><span class="linenos">159</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> -</span><span id="simplify_not-160"><a href="#simplify_not-160"><span class="linenos">160</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">):</span> -</span><span id="simplify_not-161"><a href="#simplify_not-161"><span class="linenos">161</span></a> <span class="c1"># double negation</span> -</span><span id="simplify_not-162"><a href="#simplify_not-162"><span class="linenos">162</span></a> <span class="c1"># NOT NOT x -> x</span> -</span><span id="simplify_not-163"><a href="#simplify_not-163"><span class="linenos">163</span></a> <span class="k">return</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">this</span> -</span><span id="simplify_not-164"><a href="#simplify_not-164"><span class="linenos">164</span></a> <span class="k">return</span> <span class="n">expression</span> + <div class="pdoc-code codehilite"><pre><span></span><span id="simplify_not-132"><a href="#simplify_not-132"><span class="linenos">132</span></a><span class="k">def</span> <span class="nf">simplify_not</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span> +</span><span id="simplify_not-133"><a href="#simplify_not-133"><span class="linenos">133</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="simplify_not-134"><a href="#simplify_not-134"><span class="linenos">134</span></a><span class="sd"> Demorgan's Law</span> +</span><span id="simplify_not-135"><a href="#simplify_not-135"><span class="linenos">135</span></a><span class="sd"> NOT (x OR y) -> NOT x AND NOT y</span> +</span><span id="simplify_not-136"><a href="#simplify_not-136"><span class="linenos">136</span></a><span class="sd"> NOT (x AND y) -> NOT x OR NOT y</span> +</span><span id="simplify_not-137"><a href="#simplify_not-137"><span class="linenos">137</span></a><span class="sd"> """</span> +</span><span id="simplify_not-138"><a href="#simplify_not-138"><span class="linenos">138</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">):</span> +</span><span id="simplify_not-139"><a href="#simplify_not-139"><span class="linenos">139</span></a> <span class="k">if</span> <span class="n">is_null</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">):</span> +</span><span id="simplify_not-140"><a href="#simplify_not-140"><span class="linenos">140</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()</span> +</span><span id="simplify_not-141"><a href="#simplify_not-141"><span class="linenos">141</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Paren</span><span class="p">):</span> +</span><span id="simplify_not-142"><a href="#simplify_not-142"><span class="linenos">142</span></a> <span class="n">condition</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">unnest</span><span class="p">()</span> +</span><span id="simplify_not-143"><a href="#simplify_not-143"><span class="linenos">143</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">condition</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">):</span> +</span><span id="simplify_not-144"><a href="#simplify_not-144"><span class="linenos">144</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">or_</span><span class="p">(</span> +</span><span id="simplify_not-145"><a href="#simplify_not-145"><span class="linenos">145</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">not_</span><span class="p">(</span><span class="n">condition</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">),</span> +</span><span id="simplify_not-146"><a href="#simplify_not-146"><span class="linenos">146</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">not_</span><span class="p">(</span><span class="n">condition</span><span class="o">.</span><span class="n">right</span><span class="p">,</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">),</span> +</span><span id="simplify_not-147"><a href="#simplify_not-147"><span class="linenos">147</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> +</span><span id="simplify_not-148"><a href="#simplify_not-148"><span class="linenos">148</span></a> <span class="p">)</span> +</span><span id="simplify_not-149"><a href="#simplify_not-149"><span class="linenos">149</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">condition</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Or</span><span class="p">):</span> +</span><span id="simplify_not-150"><a href="#simplify_not-150"><span class="linenos">150</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">and_</span><span class="p">(</span> +</span><span id="simplify_not-151"><a href="#simplify_not-151"><span class="linenos">151</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">not_</span><span class="p">(</span><span class="n">condition</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">),</span> +</span><span id="simplify_not-152"><a href="#simplify_not-152"><span class="linenos">152</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">not_</span><span class="p">(</span><span class="n">condition</span><span class="o">.</span><span class="n">right</span><span class="p">,</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">),</span> +</span><span id="simplify_not-153"><a href="#simplify_not-153"><span class="linenos">153</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> +</span><span id="simplify_not-154"><a href="#simplify_not-154"><span class="linenos">154</span></a> <span class="p">)</span> +</span><span id="simplify_not-155"><a href="#simplify_not-155"><span class="linenos">155</span></a> <span class="k">if</span> <span class="n">is_null</span><span class="p">(</span><span class="n">condition</span><span class="p">):</span> +</span><span id="simplify_not-156"><a href="#simplify_not-156"><span class="linenos">156</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()</span> +</span><span id="simplify_not-157"><a href="#simplify_not-157"><span class="linenos">157</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">):</span> +</span><span id="simplify_not-158"><a href="#simplify_not-158"><span class="linenos">158</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> +</span><span id="simplify_not-159"><a href="#simplify_not-159"><span class="linenos">159</span></a> <span class="k">if</span> <span class="n">is_false</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">):</span> +</span><span id="simplify_not-160"><a href="#simplify_not-160"><span class="linenos">160</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> +</span><span id="simplify_not-161"><a href="#simplify_not-161"><span class="linenos">161</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">):</span> +</span><span id="simplify_not-162"><a href="#simplify_not-162"><span class="linenos">162</span></a> <span class="c1"># double negation</span> +</span><span id="simplify_not-163"><a href="#simplify_not-163"><span class="linenos">163</span></a> <span class="c1"># NOT NOT x -> x</span> +</span><span id="simplify_not-164"><a href="#simplify_not-164"><span class="linenos">164</span></a> <span class="k">return</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">this</span> +</span><span id="simplify_not-165"><a href="#simplify_not-165"><span class="linenos">165</span></a> <span class="k">return</span> <span class="n">expression</span> </span></pre></div> @@ -1539,17 +1582,17 @@ NOT (x AND y) -> NOT x OR NOT y</p> </div> <a class="headerlink" href="#flatten"></a> - <div class="pdoc-code codehilite"><pre><span></span><span id="flatten-167"><a href="#flatten-167"><span class="linenos">167</span></a><span class="k">def</span> <span class="nf">flatten</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span> -</span><span id="flatten-168"><a href="#flatten-168"><span class="linenos">168</span></a><span class="w"> </span><span class="sd">"""</span> -</span><span id="flatten-169"><a href="#flatten-169"><span class="linenos">169</span></a><span class="sd"> A AND (B AND C) -> A AND B AND C</span> -</span><span id="flatten-170"><a href="#flatten-170"><span class="linenos">170</span></a><span class="sd"> A OR (B OR C) -> A OR B OR C</span> -</span><span id="flatten-171"><a href="#flatten-171"><span class="linenos">171</span></a><span class="sd"> """</span> -</span><span id="flatten-172"><a href="#flatten-172"><span class="linenos">172</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Connector</span><span class="p">):</span> -</span><span id="flatten-173"><a href="#flatten-173"><span class="linenos">173</span></a> <span class="k">for</span> <span class="n">node</span> <span class="ow">in</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">values</span><span class="p">():</span> -</span><span id="flatten-174"><a href="#flatten-174"><span class="linenos">174</span></a> <span class="n">child</span> <span class="o">=</span> <span class="n">node</span><span class="o">.</span><span class="n">unnest</span><span class="p">()</span> -</span><span id="flatten-175"><a href="#flatten-175"><span class="linenos">175</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">child</span><span class="p">,</span> <span class="n">expression</span><span class="o">.</span><span class="vm">__class__</span><span class="p">):</span> -</span><span id="flatten-176"><a href="#flatten-176"><span class="linenos">176</span></a> <span class="n">node</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">child</span><span class="p">)</span> -</span><span id="flatten-177"><a href="#flatten-177"><span class="linenos">177</span></a> <span class="k">return</span> <span class="n">expression</span> + <div class="pdoc-code codehilite"><pre><span></span><span id="flatten-168"><a href="#flatten-168"><span class="linenos">168</span></a><span class="k">def</span> <span class="nf">flatten</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span> +</span><span id="flatten-169"><a href="#flatten-169"><span class="linenos">169</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="flatten-170"><a href="#flatten-170"><span class="linenos">170</span></a><span class="sd"> A AND (B AND C) -> A AND B AND C</span> +</span><span id="flatten-171"><a href="#flatten-171"><span class="linenos">171</span></a><span class="sd"> A OR (B OR C) -> A OR B OR C</span> +</span><span id="flatten-172"><a href="#flatten-172"><span class="linenos">172</span></a><span class="sd"> """</span> +</span><span id="flatten-173"><a href="#flatten-173"><span class="linenos">173</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Connector</span><span class="p">):</span> +</span><span id="flatten-174"><a href="#flatten-174"><span class="linenos">174</span></a> <span class="k">for</span> <span class="n">node</span> <span class="ow">in</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">values</span><span class="p">():</span> +</span><span id="flatten-175"><a href="#flatten-175"><span class="linenos">175</span></a> <span class="n">child</span> <span class="o">=</span> <span class="n">node</span><span class="o">.</span><span class="n">unnest</span><span class="p">()</span> +</span><span id="flatten-176"><a href="#flatten-176"><span class="linenos">176</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">child</span><span class="p">,</span> <span class="n">expression</span><span class="o">.</span><span class="vm">__class__</span><span class="p">):</span> +</span><span id="flatten-177"><a href="#flatten-177"><span class="linenos">177</span></a> <span class="n">node</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">child</span><span class="p">)</span> +</span><span id="flatten-178"><a href="#flatten-178"><span class="linenos">178</span></a> <span class="k">return</span> <span class="n">expression</span> </span></pre></div> @@ -1570,42 +1613,42 @@ A OR (B OR C) -> A OR B OR C</p> </div> <a class="headerlink" href="#simplify_connectors"></a> - <div class="pdoc-code codehilite"><pre><span></span><span id="simplify_connectors-180"><a href="#simplify_connectors-180"><span class="linenos">180</span></a><span class="k">def</span> <span class="nf">simplify_connectors</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span> -</span><span id="simplify_connectors-181"><a href="#simplify_connectors-181"><span class="linenos">181</span></a> <span class="k">def</span> <span class="nf">_simplify_connectors</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">left</span><span class="p">,</span> <span class="n">right</span><span class="p">):</span> -</span><span id="simplify_connectors-182"><a href="#simplify_connectors-182"><span class="linenos">182</span></a> <span class="k">if</span> <span class="n">left</span> <span class="o">==</span> <span class="n">right</span><span class="p">:</span> -</span><span id="simplify_connectors-183"><a href="#simplify_connectors-183"><span class="linenos">183</span></a> <span class="k">return</span> <span class="n">left</span> -</span><span id="simplify_connectors-184"><a href="#simplify_connectors-184"><span class="linenos">184</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">):</span> -</span><span id="simplify_connectors-185"><a href="#simplify_connectors-185"><span class="linenos">185</span></a> <span class="k">if</span> <span class="n">is_false</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">or</span> <span class="n">is_false</span><span class="p">(</span><span class="n">right</span><span class="p">):</span> -</span><span id="simplify_connectors-186"><a href="#simplify_connectors-186"><span class="linenos">186</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> -</span><span id="simplify_connectors-187"><a href="#simplify_connectors-187"><span class="linenos">187</span></a> <span class="k">if</span> <span class="n">is_null</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">or</span> <span class="n">is_null</span><span class="p">(</span><span class="n">right</span><span class="p">):</span> -</span><span id="simplify_connectors-188"><a href="#simplify_connectors-188"><span class="linenos">188</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()</span> -</span><span id="simplify_connectors-189"><a href="#simplify_connectors-189"><span class="linenos">189</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">and</span> <span class="n">always_true</span><span class="p">(</span><span class="n">right</span><span class="p">):</span> -</span><span id="simplify_connectors-190"><a href="#simplify_connectors-190"><span class="linenos">190</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> -</span><span id="simplify_connectors-191"><a href="#simplify_connectors-191"><span class="linenos">191</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">left</span><span class="p">):</span> -</span><span id="simplify_connectors-192"><a href="#simplify_connectors-192"><span class="linenos">192</span></a> <span class="k">return</span> <span class="n">right</span> -</span><span id="simplify_connectors-193"><a href="#simplify_connectors-193"><span class="linenos">193</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">right</span><span class="p">):</span> -</span><span id="simplify_connectors-194"><a href="#simplify_connectors-194"><span class="linenos">194</span></a> <span class="k">return</span> <span class="n">left</span> -</span><span id="simplify_connectors-195"><a href="#simplify_connectors-195"><span class="linenos">195</span></a> <span class="k">return</span> <span class="n">_simplify_comparison</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">left</span><span class="p">,</span> <span class="n">right</span><span class="p">)</span> -</span><span id="simplify_connectors-196"><a href="#simplify_connectors-196"><span class="linenos">196</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Or</span><span class="p">):</span> -</span><span id="simplify_connectors-197"><a href="#simplify_connectors-197"><span class="linenos">197</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">or</span> <span class="n">always_true</span><span class="p">(</span><span class="n">right</span><span class="p">):</span> -</span><span id="simplify_connectors-198"><a href="#simplify_connectors-198"><span class="linenos">198</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> -</span><span id="simplify_connectors-199"><a href="#simplify_connectors-199"><span class="linenos">199</span></a> <span class="k">if</span> <span class="n">is_false</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">and</span> <span class="n">is_false</span><span class="p">(</span><span class="n">right</span><span class="p">):</span> -</span><span id="simplify_connectors-200"><a href="#simplify_connectors-200"><span class="linenos">200</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> -</span><span id="simplify_connectors-201"><a href="#simplify_connectors-201"><span class="linenos">201</span></a> <span class="k">if</span> <span class="p">(</span> -</span><span id="simplify_connectors-202"><a href="#simplify_connectors-202"><span class="linenos">202</span></a> <span class="p">(</span><span class="n">is_null</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">and</span> <span class="n">is_null</span><span class="p">(</span><span class="n">right</span><span class="p">))</span> -</span><span id="simplify_connectors-203"><a href="#simplify_connectors-203"><span class="linenos">203</span></a> <span class="ow">or</span> <span class="p">(</span><span class="n">is_null</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">and</span> <span class="n">is_false</span><span class="p">(</span><span class="n">right</span><span class="p">))</span> -</span><span id="simplify_connectors-204"><a href="#simplify_connectors-204"><span class="linenos">204</span></a> <span class="ow">or</span> <span class="p">(</span><span class="n">is_false</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">and</span> <span class="n">is_null</span><span class="p">(</span><span class="n">right</span><span class="p">))</span> -</span><span id="simplify_connectors-205"><a href="#simplify_connectors-205"><span class="linenos">205</span></a> <span class="p">):</span> -</span><span id="simplify_connectors-206"><a href="#simplify_connectors-206"><span class="linenos">206</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()</span> -</span><span id="simplify_connectors-207"><a href="#simplify_connectors-207"><span class="linenos">207</span></a> <span class="k">if</span> <span class="n">is_false</span><span class="p">(</span><span class="n">left</span><span class="p">):</span> -</span><span id="simplify_connectors-208"><a href="#simplify_connectors-208"><span class="linenos">208</span></a> <span class="k">return</span> <span class="n">right</span> -</span><span id="simplify_connectors-209"><a href="#simplify_connectors-209"><span class="linenos">209</span></a> <span class="k">if</span> <span class="n">is_false</span><span class="p">(</span><span class="n">right</span><span class="p">):</span> -</span><span id="simplify_connectors-210"><a href="#simplify_connectors-210"><span class="linenos">210</span></a> <span class="k">return</span> <span class="n">left</span> -</span><span id="simplify_connectors-211"><a href="#simplify_connectors-211"><span class="linenos">211</span></a> <span class="k">return</span> <span class="n">_simplify_comparison</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">left</span><span class="p">,</span> <span class="n">right</span><span class="p">,</span> <span class="n">or_</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span> -</span><span id="simplify_connectors-212"><a href="#simplify_connectors-212"><span class="linenos">212</span></a> -</span><span id="simplify_connectors-213"><a href="#simplify_connectors-213"><span class="linenos">213</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Connector</span><span class="p">):</span> -</span><span id="simplify_connectors-214"><a href="#simplify_connectors-214"><span class="linenos">214</span></a> <span class="k">return</span> <span class="n">_flat_simplify</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">_simplify_connectors</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span> -</span><span id="simplify_connectors-215"><a href="#simplify_connectors-215"><span class="linenos">215</span></a> <span class="k">return</span> <span class="n">expression</span> + <div class="pdoc-code codehilite"><pre><span></span><span id="simplify_connectors-181"><a href="#simplify_connectors-181"><span class="linenos">181</span></a><span class="k">def</span> <span class="nf">simplify_connectors</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span> +</span><span id="simplify_connectors-182"><a href="#simplify_connectors-182"><span class="linenos">182</span></a> <span class="k">def</span> <span class="nf">_simplify_connectors</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">left</span><span class="p">,</span> <span class="n">right</span><span class="p">):</span> +</span><span id="simplify_connectors-183"><a href="#simplify_connectors-183"><span class="linenos">183</span></a> <span class="k">if</span> <span class="n">left</span> <span class="o">==</span> <span class="n">right</span><span class="p">:</span> +</span><span id="simplify_connectors-184"><a href="#simplify_connectors-184"><span class="linenos">184</span></a> <span class="k">return</span> <span class="n">left</span> +</span><span id="simplify_connectors-185"><a href="#simplify_connectors-185"><span class="linenos">185</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">):</span> +</span><span id="simplify_connectors-186"><a href="#simplify_connectors-186"><span class="linenos">186</span></a> <span class="k">if</span> <span class="n">is_false</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">or</span> <span class="n">is_false</span><span class="p">(</span><span class="n">right</span><span class="p">):</span> +</span><span id="simplify_connectors-187"><a href="#simplify_connectors-187"><span class="linenos">187</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> +</span><span id="simplify_connectors-188"><a href="#simplify_connectors-188"><span class="linenos">188</span></a> <span class="k">if</span> <span class="n">is_null</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">or</span> <span class="n">is_null</span><span class="p">(</span><span class="n">right</span><span class="p">):</span> +</span><span id="simplify_connectors-189"><a href="#simplify_connectors-189"><span class="linenos">189</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()</span> +</span><span id="simplify_connectors-190"><a href="#simplify_connectors-190"><span class="linenos">190</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">and</span> <span class="n">always_true</span><span class="p">(</span><span class="n">right</span><span class="p">):</span> +</span><span id="simplify_connectors-191"><a href="#simplify_connectors-191"><span class="linenos">191</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> +</span><span id="simplify_connectors-192"><a href="#simplify_connectors-192"><span class="linenos">192</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">left</span><span class="p">):</span> +</span><span id="simplify_connectors-193"><a href="#simplify_connectors-193"><span class="linenos">193</span></a> <span class="k">return</span> <span class="n">right</span> +</span><span id="simplify_connectors-194"><a href="#simplify_connectors-194"><span class="linenos">194</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">right</span><span class="p">):</span> +</span><span id="simplify_connectors-195"><a href="#simplify_connectors-195"><span class="linenos">195</span></a> <span class="k">return</span> <span class="n">left</span> +</span><span id="simplify_connectors-196"><a href="#simplify_connectors-196"><span class="linenos">196</span></a> <span class="k">return</span> <span class="n">_simplify_comparison</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">left</span><span class="p">,</span> <span class="n">right</span><span class="p">)</span> +</span><span id="simplify_connectors-197"><a href="#simplify_connectors-197"><span class="linenos">197</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Or</span><span class="p">):</span> +</span><span id="simplify_connectors-198"><a href="#simplify_connectors-198"><span class="linenos">198</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">or</span> <span class="n">always_true</span><span class="p">(</span><span class="n">right</span><span class="p">):</span> +</span><span id="simplify_connectors-199"><a href="#simplify_connectors-199"><span class="linenos">199</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> +</span><span id="simplify_connectors-200"><a href="#simplify_connectors-200"><span class="linenos">200</span></a> <span class="k">if</span> <span class="n">is_false</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">and</span> <span class="n">is_false</span><span class="p">(</span><span class="n">right</span><span class="p">):</span> +</span><span id="simplify_connectors-201"><a href="#simplify_connectors-201"><span class="linenos">201</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> +</span><span id="simplify_connectors-202"><a href="#simplify_connectors-202"><span class="linenos">202</span></a> <span class="k">if</span> <span class="p">(</span> +</span><span id="simplify_connectors-203"><a href="#simplify_connectors-203"><span class="linenos">203</span></a> <span class="p">(</span><span class="n">is_null</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">and</span> <span class="n">is_null</span><span class="p">(</span><span class="n">right</span><span class="p">))</span> +</span><span id="simplify_connectors-204"><a href="#simplify_connectors-204"><span class="linenos">204</span></a> <span class="ow">or</span> <span class="p">(</span><span class="n">is_null</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">and</span> <span class="n">is_false</span><span class="p">(</span><span class="n">right</span><span class="p">))</span> +</span><span id="simplify_connectors-205"><a href="#simplify_connectors-205"><span class="linenos">205</span></a> <span class="ow">or</span> <span class="p">(</span><span class="n">is_false</span><span class="p">(</span><span class="n">left</span><span class="p">)</span> <span class="ow">and</span> <span class="n">is_null</span><span class="p">(</span><span class="n">right</span><span class="p">))</span> +</span><span id="simplify_connectors-206"><a href="#simplify_connectors-206"><span class="linenos">206</span></a> <span class="p">):</span> +</span><span id="simplify_connectors-207"><a href="#simplify_connectors-207"><span class="linenos">207</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()</span> +</span><span id="simplify_connectors-208"><a href="#simplify_connectors-208"><span class="linenos">208</span></a> <span class="k">if</span> <span class="n">is_false</span><span class="p">(</span><span class="n">left</span><span class="p">):</span> +</span><span id="simplify_connectors-209"><a href="#simplify_connectors-209"><span class="linenos">209</span></a> <span class="k">return</span> <span class="n">right</span> +</span><span id="simplify_connectors-210"><a href="#simplify_connectors-210"><span class="linenos">210</span></a> <span class="k">if</span> <span class="n">is_false</span><span class="p">(</span><span class="n">right</span><span class="p">):</span> +</span><span id="simplify_connectors-211"><a href="#simplify_connectors-211"><span class="linenos">211</span></a> <span class="k">return</span> <span class="n">left</span> +</span><span id="simplify_connectors-212"><a href="#simplify_connectors-212"><span class="linenos">212</span></a> <span class="k">return</span> <span class="n">_simplify_comparison</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">left</span><span class="p">,</span> <span class="n">right</span><span class="p">,</span> <span class="n">or_</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span> +</span><span id="simplify_connectors-213"><a href="#simplify_connectors-213"><span class="linenos">213</span></a> +</span><span id="simplify_connectors-214"><a href="#simplify_connectors-214"><span class="linenos">214</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Connector</span><span class="p">):</span> +</span><span id="simplify_connectors-215"><a href="#simplify_connectors-215"><span class="linenos">215</span></a> <span class="k">return</span> <span class="n">_flat_simplify</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">_simplify_connectors</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span> +</span><span id="simplify_connectors-216"><a href="#simplify_connectors-216"><span class="linenos">216</span></a> <span class="k">return</span> <span class="n">expression</span> </span></pre></div> @@ -1673,20 +1716,20 @@ A OR (B OR C) -> A OR B OR C</p> </div> <a class="headerlink" href="#remove_complements"></a> - <div class="pdoc-code codehilite"><pre><span></span><span id="remove_complements-298"><a href="#remove_complements-298"><span class="linenos">298</span></a><span class="k">def</span> <span class="nf">remove_complements</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span> -</span><span id="remove_complements-299"><a href="#remove_complements-299"><span class="linenos">299</span></a><span class="w"> </span><span class="sd">"""</span> -</span><span id="remove_complements-300"><a href="#remove_complements-300"><span class="linenos">300</span></a><span class="sd"> Removing complements.</span> -</span><span id="remove_complements-301"><a href="#remove_complements-301"><span class="linenos">301</span></a> -</span><span id="remove_complements-302"><a href="#remove_complements-302"><span class="linenos">302</span></a><span class="sd"> A AND NOT A -> FALSE</span> -</span><span id="remove_complements-303"><a href="#remove_complements-303"><span class="linenos">303</span></a><span class="sd"> A OR NOT A -> TRUE</span> -</span><span id="remove_complements-304"><a href="#remove_complements-304"><span class="linenos">304</span></a><span class="sd"> """</span> -</span><span id="remove_complements-305"><a href="#remove_complements-305"><span class="linenos">305</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Connector</span><span class="p">)</span> <span class="ow">and</span> <span class="p">(</span><span class="n">root</span> <span class="ow">or</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">same_parent</span><span class="p">):</span> -</span><span id="remove_complements-306"><a href="#remove_complements-306"><span class="linenos">306</span></a> <span class="n">complement</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">)</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> -</span><span id="remove_complements-307"><a href="#remove_complements-307"><span class="linenos">307</span></a> -</span><span id="remove_complements-308"><a href="#remove_complements-308"><span class="linenos">308</span></a> <span class="k">for</span> <span class="n">a</span><span class="p">,</span> <span class="n">b</span> <span class="ow">in</span> <span class="n">itertools</span><span class="o">.</span><span class="n">permutations</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">flatten</span><span class="p">(),</span> <span class="mi">2</span><span class="p">):</span> -</span><span id="remove_complements-309"><a href="#remove_complements-309"><span class="linenos">309</span></a> <span class="k">if</span> <span class="n">is_complement</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">):</span> -</span><span id="remove_complements-310"><a href="#remove_complements-310"><span class="linenos">310</span></a> <span class="k">return</span> <span class="n">complement</span> -</span><span id="remove_complements-311"><a href="#remove_complements-311"><span class="linenos">311</span></a> <span class="k">return</span> <span class="n">expression</span> + <div class="pdoc-code codehilite"><pre><span></span><span id="remove_complements-299"><a href="#remove_complements-299"><span class="linenos">299</span></a><span class="k">def</span> <span class="nf">remove_complements</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span> +</span><span id="remove_complements-300"><a href="#remove_complements-300"><span class="linenos">300</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="remove_complements-301"><a href="#remove_complements-301"><span class="linenos">301</span></a><span class="sd"> Removing complements.</span> +</span><span id="remove_complements-302"><a href="#remove_complements-302"><span class="linenos">302</span></a> +</span><span id="remove_complements-303"><a href="#remove_complements-303"><span class="linenos">303</span></a><span class="sd"> A AND NOT A -> FALSE</span> +</span><span id="remove_complements-304"><a href="#remove_complements-304"><span class="linenos">304</span></a><span class="sd"> A OR NOT A -> TRUE</span> +</span><span id="remove_complements-305"><a href="#remove_complements-305"><span class="linenos">305</span></a><span class="sd"> """</span> +</span><span id="remove_complements-306"><a href="#remove_complements-306"><span class="linenos">306</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Connector</span><span class="p">)</span> <span class="ow">and</span> <span class="p">(</span><span class="n">root</span> <span class="ow">or</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">same_parent</span><span class="p">):</span> +</span><span id="remove_complements-307"><a href="#remove_complements-307"><span class="linenos">307</span></a> <span class="n">complement</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">)</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> +</span><span id="remove_complements-308"><a href="#remove_complements-308"><span class="linenos">308</span></a> +</span><span id="remove_complements-309"><a href="#remove_complements-309"><span class="linenos">309</span></a> <span class="k">for</span> <span class="n">a</span><span class="p">,</span> <span class="n">b</span> <span class="ow">in</span> <span class="n">itertools</span><span class="o">.</span><span class="n">permutations</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">flatten</span><span class="p">(),</span> <span class="mi">2</span><span class="p">):</span> +</span><span id="remove_complements-310"><a href="#remove_complements-310"><span class="linenos">310</span></a> <span class="k">if</span> <span class="n">is_complement</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">):</span> +</span><span id="remove_complements-311"><a href="#remove_complements-311"><span class="linenos">311</span></a> <span class="k">return</span> <span class="n">complement</span> +</span><span id="remove_complements-312"><a href="#remove_complements-312"><span class="linenos">312</span></a> <span class="k">return</span> <span class="n">expression</span> </span></pre></div> @@ -1709,30 +1752,30 @@ A OR NOT A -> TRUE</p> </div> <a class="headerlink" href="#uniq_sort"></a> - <div class="pdoc-code codehilite"><pre><span></span><span id="uniq_sort-314"><a href="#uniq_sort-314"><span class="linenos">314</span></a><span class="k">def</span> <span class="nf">uniq_sort</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">generate</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span> -</span><span id="uniq_sort-315"><a href="#uniq_sort-315"><span class="linenos">315</span></a><span class="w"> </span><span class="sd">"""</span> -</span><span id="uniq_sort-316"><a href="#uniq_sort-316"><span class="linenos">316</span></a><span class="sd"> Uniq and sort a connector.</span> -</span><span id="uniq_sort-317"><a href="#uniq_sort-317"><span class="linenos">317</span></a> -</span><span id="uniq_sort-318"><a href="#uniq_sort-318"><span class="linenos">318</span></a><span class="sd"> C AND A AND B AND B -> A AND B AND C</span> -</span><span id="uniq_sort-319"><a href="#uniq_sort-319"><span class="linenos">319</span></a><span class="sd"> """</span> -</span><span id="uniq_sort-320"><a href="#uniq_sort-320"><span class="linenos">320</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Connector</span><span class="p">)</span> <span class="ow">and</span> <span class="p">(</span><span class="n">root</span> <span class="ow">or</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">same_parent</span><span class="p">):</span> -</span><span id="uniq_sort-321"><a href="#uniq_sort-321"><span class="linenos">321</span></a> <span class="n">result_func</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">and_</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">)</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">or_</span> -</span><span id="uniq_sort-322"><a href="#uniq_sort-322"><span class="linenos">322</span></a> <span class="n">flattened</span> <span class="o">=</span> <span class="nb">tuple</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">flatten</span><span class="p">())</span> -</span><span id="uniq_sort-323"><a href="#uniq_sort-323"><span class="linenos">323</span></a> <span class="n">deduped</span> <span class="o">=</span> <span class="p">{</span><span class="n">generate</span><span class="p">(</span><span class="n">e</span><span class="p">):</span> <span class="n">e</span> <span class="k">for</span> <span class="n">e</span> <span class="ow">in</span> <span class="n">flattened</span><span class="p">}</span> -</span><span id="uniq_sort-324"><a href="#uniq_sort-324"><span class="linenos">324</span></a> <span class="n">arr</span> <span class="o">=</span> <span class="nb">tuple</span><span class="p">(</span><span class="n">deduped</span><span class="o">.</span><span class="n">items</span><span class="p">())</span> -</span><span id="uniq_sort-325"><a href="#uniq_sort-325"><span class="linenos">325</span></a> -</span><span id="uniq_sort-326"><a href="#uniq_sort-326"><span class="linenos">326</span></a> <span class="c1"># check if the operands are already sorted, if not sort them</span> -</span><span id="uniq_sort-327"><a href="#uniq_sort-327"><span class="linenos">327</span></a> <span class="c1"># A AND C AND B -> A AND B AND C</span> -</span><span id="uniq_sort-328"><a href="#uniq_sort-328"><span class="linenos">328</span></a> <span class="k">for</span> <span class="n">i</span><span class="p">,</span> <span class="p">(</span><span class="n">sql</span><span class="p">,</span> <span class="n">e</span><span class="p">)</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="n">arr</span><span class="p">[</span><span class="mi">1</span><span class="p">:]):</span> -</span><span id="uniq_sort-329"><a href="#uniq_sort-329"><span class="linenos">329</span></a> <span class="k">if</span> <span class="n">sql</span> <span class="o"><</span> <span class="n">arr</span><span class="p">[</span><span class="n">i</span><span class="p">][</span><span class="mi">0</span><span class="p">]:</span> -</span><span id="uniq_sort-330"><a href="#uniq_sort-330"><span class="linenos">330</span></a> <span class="n">expression</span> <span class="o">=</span> <span class="n">result_func</span><span class="p">(</span><span class="o">*</span><span class="p">(</span><span class="n">e</span> <span class="k">for</span> <span class="n">_</span><span class="p">,</span> <span class="n">e</span> <span class="ow">in</span> <span class="nb">sorted</span><span class="p">(</span><span class="n">arr</span><span class="p">)),</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span> -</span><span id="uniq_sort-331"><a href="#uniq_sort-331"><span class="linenos">331</span></a> <span class="k">break</span> -</span><span id="uniq_sort-332"><a href="#uniq_sort-332"><span class="linenos">332</span></a> <span class="k">else</span><span class="p">:</span> -</span><span id="uniq_sort-333"><a href="#uniq_sort-333"><span class="linenos">333</span></a> <span class="c1"># we didn't have to sort but maybe we need to dedup</span> -</span><span id="uniq_sort-334"><a href="#uniq_sort-334"><span class="linenos">334</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">deduped</span><span class="p">)</span> <span class="o"><</span> <span class="nb">len</span><span class="p">(</span><span class="n">flattened</span><span class="p">):</span> -</span><span id="uniq_sort-335"><a href="#uniq_sort-335"><span class="linenos">335</span></a> <span class="n">expression</span> <span class="o">=</span> <span class="n">result_func</span><span class="p">(</span><span class="o">*</span><span class="n">deduped</span><span class="o">.</span><span class="n">values</span><span class="p">(),</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span> -</span><span id="uniq_sort-336"><a href="#uniq_sort-336"><span class="linenos">336</span></a> -</span><span id="uniq_sort-337"><a href="#uniq_sort-337"><span class="linenos">337</span></a> <span class="k">return</span> <span class="n">expression</span> + <div class="pdoc-code codehilite"><pre><span></span><span id="uniq_sort-315"><a href="#uniq_sort-315"><span class="linenos">315</span></a><span class="k">def</span> <span class="nf">uniq_sort</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">generate</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span> +</span><span id="uniq_sort-316"><a href="#uniq_sort-316"><span class="linenos">316</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="uniq_sort-317"><a href="#uniq_sort-317"><span class="linenos">317</span></a><span class="sd"> Uniq and sort a connector.</span> +</span><span id="uniq_sort-318"><a href="#uniq_sort-318"><span class="linenos">318</span></a> +</span><span id="uniq_sort-319"><a href="#uniq_sort-319"><span class="linenos">319</span></a><span class="sd"> C AND A AND B AND B -> A AND B AND C</span> +</span><span id="uniq_sort-320"><a href="#uniq_sort-320"><span class="linenos">320</span></a><span class="sd"> """</span> +</span><span id="uniq_sort-321"><a href="#uniq_sort-321"><span class="linenos">321</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Connector</span><span class="p">)</span> <span class="ow">and</span> <span class="p">(</span><span class="n">root</span> <span class="ow">or</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">same_parent</span><span class="p">):</span> +</span><span id="uniq_sort-322"><a href="#uniq_sort-322"><span class="linenos">322</span></a> <span class="n">result_func</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">and_</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">)</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">or_</span> +</span><span id="uniq_sort-323"><a href="#uniq_sort-323"><span class="linenos">323</span></a> <span class="n">flattened</span> <span class="o">=</span> <span class="nb">tuple</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">flatten</span><span class="p">())</span> +</span><span id="uniq_sort-324"><a href="#uniq_sort-324"><span class="linenos">324</span></a> <span class="n">deduped</span> <span class="o">=</span> <span class="p">{</span><span class="n">generate</span><span class="p">(</span><span class="n">e</span><span class="p">):</span> <span class="n">e</span> <span class="k">for</span> <span class="n">e</span> <span class="ow">in</span> <span class="n">flattened</span><span class="p">}</span> +</span><span id="uniq_sort-325"><a href="#uniq_sort-325"><span class="linenos">325</span></a> <span class="n">arr</span> <span class="o">=</span> <span class="nb">tuple</span><span class="p">(</span><span class="n">deduped</span><span class="o">.</span><span class="n">items</span><span class="p">())</span> +</span><span id="uniq_sort-326"><a href="#uniq_sort-326"><span class="linenos">326</span></a> +</span><span id="uniq_sort-327"><a href="#uniq_sort-327"><span class="linenos">327</span></a> <span class="c1"># check if the operands are already sorted, if not sort them</span> +</span><span id="uniq_sort-328"><a href="#uniq_sort-328"><span class="linenos">328</span></a> <span class="c1"># A AND C AND B -> A AND B AND C</span> +</span><span id="uniq_sort-329"><a href="#uniq_sort-329"><span class="linenos">329</span></a> <span class="k">for</span> <span class="n">i</span><span class="p">,</span> <span class="p">(</span><span class="n">sql</span><span class="p">,</span> <span class="n">e</span><span class="p">)</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="n">arr</span><span class="p">[</span><span class="mi">1</span><span class="p">:]):</span> +</span><span id="uniq_sort-330"><a href="#uniq_sort-330"><span class="linenos">330</span></a> <span class="k">if</span> <span class="n">sql</span> <span class="o"><</span> <span class="n">arr</span><span class="p">[</span><span class="n">i</span><span class="p">][</span><span class="mi">0</span><span class="p">]:</span> +</span><span id="uniq_sort-331"><a href="#uniq_sort-331"><span class="linenos">331</span></a> <span class="n">expression</span> <span class="o">=</span> <span class="n">result_func</span><span class="p">(</span><span class="o">*</span><span class="p">(</span><span class="n">e</span> <span class="k">for</span> <span class="n">_</span><span class="p">,</span> <span class="n">e</span> <span class="ow">in</span> <span class="nb">sorted</span><span class="p">(</span><span class="n">arr</span><span class="p">)),</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span> +</span><span id="uniq_sort-332"><a href="#uniq_sort-332"><span class="linenos">332</span></a> <span class="k">break</span> +</span><span id="uniq_sort-333"><a href="#uniq_sort-333"><span class="linenos">333</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="uniq_sort-334"><a href="#uniq_sort-334"><span class="linenos">334</span></a> <span class="c1"># we didn't have to sort but maybe we need to dedup</span> +</span><span id="uniq_sort-335"><a href="#uniq_sort-335"><span class="linenos">335</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">deduped</span><span class="p">)</span> <span class="o"><</span> <span class="nb">len</span><span class="p">(</span><span class="n">flattened</span><span class="p">):</span> +</span><span id="uniq_sort-336"><a href="#uniq_sort-336"><span class="linenos">336</span></a> <span class="n">expression</span> <span class="o">=</span> <span class="n">result_func</span><span class="p">(</span><span class="o">*</span><span class="n">deduped</span><span class="o">.</span><span class="n">values</span><span class="p">(),</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span> +</span><span id="uniq_sort-337"><a href="#uniq_sort-337"><span class="linenos">337</span></a> +</span><span id="uniq_sort-338"><a href="#uniq_sort-338"><span class="linenos">338</span></a> <span class="k">return</span> <span class="n">expression</span> </span></pre></div> @@ -1754,44 +1797,44 @@ A OR NOT A -> TRUE</p> </div> <a class="headerlink" href="#absorb_and_eliminate"></a> - <div class="pdoc-code codehilite"><pre><span></span><span id="absorb_and_eliminate-340"><a href="#absorb_and_eliminate-340"><span class="linenos">340</span></a><span class="k">def</span> <span class="nf">absorb_and_eliminate</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span> -</span><span id="absorb_and_eliminate-341"><a href="#absorb_and_eliminate-341"><span class="linenos">341</span></a><span class="w"> </span><span class="sd">"""</span> -</span><span id="absorb_and_eliminate-342"><a href="#absorb_and_eliminate-342"><span class="linenos">342</span></a><span class="sd"> absorption:</span> -</span><span id="absorb_and_eliminate-343"><a href="#absorb_and_eliminate-343"><span class="linenos">343</span></a><span class="sd"> A AND (A OR B) -> A</span> -</span><span id="absorb_and_eliminate-344"><a href="#absorb_and_eliminate-344"><span class="linenos">344</span></a><span class="sd"> A OR (A AND B) -> A</span> -</span><span id="absorb_and_eliminate-345"><a href="#absorb_and_eliminate-345"><span class="linenos">345</span></a><span class="sd"> A AND (NOT A OR B) -> A AND B</span> -</span><span id="absorb_and_eliminate-346"><a href="#absorb_and_eliminate-346"><span class="linenos">346</span></a><span class="sd"> A OR (NOT A AND B) -> A OR B</span> -</span><span id="absorb_and_eliminate-347"><a href="#absorb_and_eliminate-347"><span class="linenos">347</span></a><span class="sd"> elimination:</span> -</span><span id="absorb_and_eliminate-348"><a href="#absorb_and_eliminate-348"><span class="linenos">348</span></a><span class="sd"> (A AND B) OR (A AND NOT B) -> A</span> -</span><span id="absorb_and_eliminate-349"><a href="#absorb_and_eliminate-349"><span class="linenos">349</span></a><span class="sd"> (A OR B) AND (A OR NOT B) -> A</span> -</span><span id="absorb_and_eliminate-350"><a href="#absorb_and_eliminate-350"><span class="linenos">350</span></a><span class="sd"> """</span> -</span><span id="absorb_and_eliminate-351"><a href="#absorb_and_eliminate-351"><span class="linenos">351</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Connector</span><span class="p">)</span> <span class="ow">and</span> <span class="p">(</span><span class="n">root</span> <span class="ow">or</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">same_parent</span><span class="p">):</span> -</span><span id="absorb_and_eliminate-352"><a href="#absorb_and_eliminate-352"><span class="linenos">352</span></a> <span class="n">kind</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Or</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">)</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span> -</span><span id="absorb_and_eliminate-353"><a href="#absorb_and_eliminate-353"><span class="linenos">353</span></a> -</span><span id="absorb_and_eliminate-354"><a href="#absorb_and_eliminate-354"><span class="linenos">354</span></a> <span class="k">for</span> <span class="n">a</span><span class="p">,</span> <span class="n">b</span> <span class="ow">in</span> <span class="n">itertools</span><span class="o">.</span><span class="n">permutations</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">flatten</span><span class="p">(),</span> <span class="mi">2</span><span class="p">):</span> -</span><span id="absorb_and_eliminate-355"><a href="#absorb_and_eliminate-355"><span class="linenos">355</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">kind</span><span class="p">):</span> -</span><span id="absorb_and_eliminate-356"><a href="#absorb_and_eliminate-356"><span class="linenos">356</span></a> <span class="n">aa</span><span class="p">,</span> <span class="n">ab</span> <span class="o">=</span> <span class="n">a</span><span class="o">.</span><span class="n">unnest_operands</span><span class="p">()</span> -</span><span id="absorb_and_eliminate-357"><a href="#absorb_and_eliminate-357"><span class="linenos">357</span></a> -</span><span id="absorb_and_eliminate-358"><a href="#absorb_and_eliminate-358"><span class="linenos">358</span></a> <span class="c1"># absorb</span> -</span><span id="absorb_and_eliminate-359"><a href="#absorb_and_eliminate-359"><span class="linenos">359</span></a> <span class="k">if</span> <span class="n">is_complement</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">aa</span><span class="p">):</span> -</span><span id="absorb_and_eliminate-360"><a href="#absorb_and_eliminate-360"><span class="linenos">360</span></a> <span class="n">aa</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> <span class="k">if</span> <span class="n">kind</span> <span class="o">==</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">())</span> -</span><span id="absorb_and_eliminate-361"><a href="#absorb_and_eliminate-361"><span class="linenos">361</span></a> <span class="k">elif</span> <span class="n">is_complement</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">ab</span><span class="p">):</span> -</span><span id="absorb_and_eliminate-362"><a href="#absorb_and_eliminate-362"><span class="linenos">362</span></a> <span class="n">ab</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> <span class="k">if</span> <span class="n">kind</span> <span class="o">==</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">())</span> -</span><span id="absorb_and_eliminate-363"><a href="#absorb_and_eliminate-363"><span class="linenos">363</span></a> <span class="k">elif</span> <span class="p">(</span><span class="nb">set</span><span class="p">(</span><span class="n">b</span><span class="o">.</span><span class="n">flatten</span><span class="p">())</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">kind</span><span class="p">)</span> <span class="k">else</span> <span class="p">{</span><span class="n">b</span><span class="p">})</span> <span class="o"><</span> <span class="nb">set</span><span class="p">(</span><span class="n">a</span><span class="o">.</span><span class="n">flatten</span><span class="p">()):</span> -</span><span id="absorb_and_eliminate-364"><a href="#absorb_and_eliminate-364"><span class="linenos">364</span></a> <span class="n">a</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> <span class="k">if</span> <span class="n">kind</span> <span class="o">==</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">())</span> -</span><span id="absorb_and_eliminate-365"><a href="#absorb_and_eliminate-365"><span class="linenos">365</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">kind</span><span class="p">):</span> -</span><span id="absorb_and_eliminate-366"><a href="#absorb_and_eliminate-366"><span class="linenos">366</span></a> <span class="c1"># eliminate</span> -</span><span id="absorb_and_eliminate-367"><a href="#absorb_and_eliminate-367"><span class="linenos">367</span></a> <span class="n">rhs</span> <span class="o">=</span> <span class="n">b</span><span class="o">.</span><span class="n">unnest_operands</span><span class="p">()</span> -</span><span id="absorb_and_eliminate-368"><a href="#absorb_and_eliminate-368"><span class="linenos">368</span></a> <span class="n">ba</span><span class="p">,</span> <span class="n">bb</span> <span class="o">=</span> <span class="n">rhs</span> -</span><span id="absorb_and_eliminate-369"><a href="#absorb_and_eliminate-369"><span class="linenos">369</span></a> -</span><span id="absorb_and_eliminate-370"><a href="#absorb_and_eliminate-370"><span class="linenos">370</span></a> <span class="k">if</span> <span class="n">aa</span> <span class="ow">in</span> <span class="n">rhs</span> <span class="ow">and</span> <span class="p">(</span><span class="n">is_complement</span><span class="p">(</span><span class="n">ab</span><span class="p">,</span> <span class="n">ba</span><span class="p">)</span> <span class="ow">or</span> <span class="n">is_complement</span><span class="p">(</span><span class="n">ab</span><span class="p">,</span> <span class="n">bb</span><span class="p">)):</span> -</span><span id="absorb_and_eliminate-371"><a href="#absorb_and_eliminate-371"><span class="linenos">371</span></a> <span class="n">a</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">aa</span><span class="p">)</span> -</span><span id="absorb_and_eliminate-372"><a href="#absorb_and_eliminate-372"><span class="linenos">372</span></a> <span class="n">b</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">aa</span><span class="p">)</span> -</span><span id="absorb_and_eliminate-373"><a href="#absorb_and_eliminate-373"><span class="linenos">373</span></a> <span class="k">elif</span> <span class="n">ab</span> <span class="ow">in</span> <span class="n">rhs</span> <span class="ow">and</span> <span class="p">(</span><span class="n">is_complement</span><span class="p">(</span><span class="n">aa</span><span class="p">,</span> <span class="n">ba</span><span class="p">)</span> <span class="ow">or</span> <span class="n">is_complement</span><span class="p">(</span><span class="n">aa</span><span class="p">,</span> <span class="n">bb</span><span class="p">)):</span> -</span><span id="absorb_and_eliminate-374"><a href="#absorb_and_eliminate-374"><span class="linenos">374</span></a> <span class="n">a</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">ab</span><span class="p">)</span> -</span><span id="absorb_and_eliminate-375"><a href="#absorb_and_eliminate-375"><span class="linenos">375</span></a> <span class="n">b</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">ab</span><span class="p">)</span> -</span><span id="absorb_and_eliminate-376"><a href="#absorb_and_eliminate-376"><span class="linenos">376</span></a> -</span><span id="absorb_and_eliminate-377"><a href="#absorb_and_eliminate-377"><span class="linenos">377</span></a> <span class="k">return</span> <span class="n">expression</span> + <div class="pdoc-code codehilite"><pre><span></span><span id="absorb_and_eliminate-341"><a href="#absorb_and_eliminate-341"><span class="linenos">341</span></a><span class="k">def</span> <span class="nf">absorb_and_eliminate</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span> +</span><span id="absorb_and_eliminate-342"><a href="#absorb_and_eliminate-342"><span class="linenos">342</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="absorb_and_eliminate-343"><a href="#absorb_and_eliminate-343"><span class="linenos">343</span></a><span class="sd"> absorption:</span> +</span><span id="absorb_and_eliminate-344"><a href="#absorb_and_eliminate-344"><span class="linenos">344</span></a><span class="sd"> A AND (A OR B) -> A</span> +</span><span id="absorb_and_eliminate-345"><a href="#absorb_and_eliminate-345"><span class="linenos">345</span></a><span class="sd"> A OR (A AND B) -> A</span> +</span><span id="absorb_and_eliminate-346"><a href="#absorb_and_eliminate-346"><span class="linenos">346</span></a><span class="sd"> A AND (NOT A OR B) -> A AND B</span> +</span><span id="absorb_and_eliminate-347"><a href="#absorb_and_eliminate-347"><span class="linenos">347</span></a><span class="sd"> A OR (NOT A AND B) -> A OR B</span> +</span><span id="absorb_and_eliminate-348"><a href="#absorb_and_eliminate-348"><span class="linenos">348</span></a><span class="sd"> elimination:</span> +</span><span id="absorb_and_eliminate-349"><a href="#absorb_and_eliminate-349"><span class="linenos">349</span></a><span class="sd"> (A AND B) OR (A AND NOT B) -> A</span> +</span><span id="absorb_and_eliminate-350"><a href="#absorb_and_eliminate-350"><span class="linenos">350</span></a><span class="sd"> (A OR B) AND (A OR NOT B) -> A</span> +</span><span id="absorb_and_eliminate-351"><a href="#absorb_and_eliminate-351"><span class="linenos">351</span></a><span class="sd"> """</span> +</span><span id="absorb_and_eliminate-352"><a href="#absorb_and_eliminate-352"><span class="linenos">352</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Connector</span><span class="p">)</span> <span class="ow">and</span> <span class="p">(</span><span class="n">root</span> <span class="ow">or</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">same_parent</span><span class="p">):</span> +</span><span id="absorb_and_eliminate-353"><a href="#absorb_and_eliminate-353"><span class="linenos">353</span></a> <span class="n">kind</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Or</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">)</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span> +</span><span id="absorb_and_eliminate-354"><a href="#absorb_and_eliminate-354"><span class="linenos">354</span></a> +</span><span id="absorb_and_eliminate-355"><a href="#absorb_and_eliminate-355"><span class="linenos">355</span></a> <span class="k">for</span> <span class="n">a</span><span class="p">,</span> <span class="n">b</span> <span class="ow">in</span> <span class="n">itertools</span><span class="o">.</span><span class="n">permutations</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">flatten</span><span class="p">(),</span> <span class="mi">2</span><span class="p">):</span> +</span><span id="absorb_and_eliminate-356"><a href="#absorb_and_eliminate-356"><span class="linenos">356</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">kind</span><span class="p">):</span> +</span><span id="absorb_and_eliminate-357"><a href="#absorb_and_eliminate-357"><span class="linenos">357</span></a> <span class="n">aa</span><span class="p">,</span> <span class="n">ab</span> <span class="o">=</span> <span class="n">a</span><span class="o">.</span><span class="n">unnest_operands</span><span class="p">()</span> +</span><span id="absorb_and_eliminate-358"><a href="#absorb_and_eliminate-358"><span class="linenos">358</span></a> +</span><span id="absorb_and_eliminate-359"><a href="#absorb_and_eliminate-359"><span class="linenos">359</span></a> <span class="c1"># absorb</span> +</span><span id="absorb_and_eliminate-360"><a href="#absorb_and_eliminate-360"><span class="linenos">360</span></a> <span class="k">if</span> <span class="n">is_complement</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">aa</span><span class="p">):</span> +</span><span id="absorb_and_eliminate-361"><a href="#absorb_and_eliminate-361"><span class="linenos">361</span></a> <span class="n">aa</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> <span class="k">if</span> <span class="n">kind</span> <span class="o">==</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">())</span> +</span><span id="absorb_and_eliminate-362"><a href="#absorb_and_eliminate-362"><span class="linenos">362</span></a> <span class="k">elif</span> <span class="n">is_complement</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">ab</span><span class="p">):</span> +</span><span id="absorb_and_eliminate-363"><a href="#absorb_and_eliminate-363"><span class="linenos">363</span></a> <span class="n">ab</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> <span class="k">if</span> <span class="n">kind</span> <span class="o">==</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">())</span> +</span><span id="absorb_and_eliminate-364"><a href="#absorb_and_eliminate-364"><span class="linenos">364</span></a> <span class="k">elif</span> <span class="p">(</span><span class="nb">set</span><span class="p">(</span><span class="n">b</span><span class="o">.</span><span class="n">flatten</span><span class="p">())</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">kind</span><span class="p">)</span> <span class="k">else</span> <span class="p">{</span><span class="n">b</span><span class="p">})</span> <span class="o"><</span> <span class="nb">set</span><span class="p">(</span><span class="n">a</span><span class="o">.</span><span class="n">flatten</span><span class="p">()):</span> +</span><span id="absorb_and_eliminate-365"><a href="#absorb_and_eliminate-365"><span class="linenos">365</span></a> <span class="n">a</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> <span class="k">if</span> <span class="n">kind</span> <span class="o">==</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">())</span> +</span><span id="absorb_and_eliminate-366"><a href="#absorb_and_eliminate-366"><span class="linenos">366</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">kind</span><span class="p">):</span> +</span><span id="absorb_and_eliminate-367"><a href="#absorb_and_eliminate-367"><span class="linenos">367</span></a> <span class="c1"># eliminate</span> +</span><span id="absorb_and_eliminate-368"><a href="#absorb_and_eliminate-368"><span class="linenos">368</span></a> <span class="n">rhs</span> <span class="o">=</span> <span class="n">b</span><span class="o">.</span><span class="n">unnest_operands</span><span class="p">()</span> +</span><span id="absorb_and_eliminate-369"><a href="#absorb_and_eliminate-369"><span class="linenos">369</span></a> <span class="n">ba</span><span class="p">,</span> <span class="n">bb</span> <span class="o">=</span> <span class="n">rhs</span> +</span><span id="absorb_and_eliminate-370"><a href="#absorb_and_eliminate-370"><span class="linenos">370</span></a> +</span><span id="absorb_and_eliminate-371"><a href="#absorb_and_eliminate-371"><span class="linenos">371</span></a> <span class="k">if</span> <span class="n">aa</span> <span class="ow">in</span> <span class="n">rhs</span> <span class="ow">and</span> <span class="p">(</span><span class="n">is_complement</span><span class="p">(</span><span class="n">ab</span><span class="p">,</span> <span class="n">ba</span><span class="p">)</span> <span class="ow">or</span> <span class="n">is_complement</span><span class="p">(</span><span class="n">ab</span><span class="p">,</span> <span class="n">bb</span><span class="p">)):</span> +</span><span id="absorb_and_eliminate-372"><a href="#absorb_and_eliminate-372"><span class="linenos">372</span></a> <span class="n">a</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">aa</span><span class="p">)</span> +</span><span id="absorb_and_eliminate-373"><a href="#absorb_and_eliminate-373"><span class="linenos">373</span></a> <span class="n">b</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">aa</span><span class="p">)</span> +</span><span id="absorb_and_eliminate-374"><a href="#absorb_and_eliminate-374"><span class="linenos">374</span></a> <span class="k">elif</span> <span class="n">ab</span> <span class="ow">in</span> <span class="n">rhs</span> <span class="ow">and</span> <span class="p">(</span><span class="n">is_complement</span><span class="p">(</span><span class="n">aa</span><span class="p">,</span> <span class="n">ba</span><span class="p">)</span> <span class="ow">or</span> <span class="n">is_complement</span><span class="p">(</span><span class="n">aa</span><span class="p">,</span> <span class="n">bb</span><span class="p">)):</span> +</span><span id="absorb_and_eliminate-375"><a href="#absorb_and_eliminate-375"><span class="linenos">375</span></a> <span class="n">a</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">ab</span><span class="p">)</span> +</span><span id="absorb_and_eliminate-376"><a href="#absorb_and_eliminate-376"><span class="linenos">376</span></a> <span class="n">b</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">ab</span><span class="p">)</span> +</span><span id="absorb_and_eliminate-377"><a href="#absorb_and_eliminate-377"><span class="linenos">377</span></a> +</span><span id="absorb_and_eliminate-378"><a href="#absorb_and_eliminate-378"><span class="linenos">378</span></a> <span class="k">return</span> <span class="n">expression</span> </span></pre></div> @@ -1818,48 +1861,49 @@ elimination: </div> <a class="headerlink" href="#propagate_constants"></a> - <div class="pdoc-code codehilite"><pre><span></span><span id="propagate_constants-380"><a href="#propagate_constants-380"><span class="linenos">380</span></a><span class="k">def</span> <span class="nf">propagate_constants</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span> -</span><span id="propagate_constants-381"><a href="#propagate_constants-381"><span class="linenos">381</span></a><span class="w"> </span><span class="sd">"""</span> -</span><span id="propagate_constants-382"><a href="#propagate_constants-382"><span class="linenos">382</span></a><span class="sd"> Propagate constants for conjunctions in DNF:</span> -</span><span id="propagate_constants-383"><a href="#propagate_constants-383"><span class="linenos">383</span></a> -</span><span id="propagate_constants-384"><a href="#propagate_constants-384"><span class="linenos">384</span></a><span class="sd"> SELECT * FROM t WHERE a = b AND b = 5 becomes</span> -</span><span id="propagate_constants-385"><a href="#propagate_constants-385"><span class="linenos">385</span></a><span class="sd"> SELECT * FROM t WHERE a = 5 AND b = 5</span> -</span><span id="propagate_constants-386"><a href="#propagate_constants-386"><span class="linenos">386</span></a> -</span><span id="propagate_constants-387"><a href="#propagate_constants-387"><span class="linenos">387</span></a><span class="sd"> Reference: https://www.sqlite.org/optoverview.html</span> -</span><span id="propagate_constants-388"><a href="#propagate_constants-388"><span class="linenos">388</span></a><span class="sd"> """</span> -</span><span id="propagate_constants-389"><a href="#propagate_constants-389"><span class="linenos">389</span></a> -</span><span id="propagate_constants-390"><a href="#propagate_constants-390"><span class="linenos">390</span></a> <span class="k">if</span> <span class="p">(</span> -</span><span id="propagate_constants-391"><a href="#propagate_constants-391"><span class="linenos">391</span></a> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">)</span> -</span><span id="propagate_constants-392"><a href="#propagate_constants-392"><span class="linenos">392</span></a> <span class="ow">and</span> <span class="p">(</span><span class="n">root</span> <span class="ow">or</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">same_parent</span><span class="p">)</span> -</span><span id="propagate_constants-393"><a href="#propagate_constants-393"><span class="linenos">393</span></a> <span class="ow">and</span> <span class="n">sqlglot</span><span class="o">.</span><span class="n">optimizer</span><span class="o">.</span><span class="n">normalize</span><span class="o">.</span><span class="n">normalized</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">dnf</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span> -</span><span id="propagate_constants-394"><a href="#propagate_constants-394"><span class="linenos">394</span></a> <span class="p">):</span> -</span><span id="propagate_constants-395"><a href="#propagate_constants-395"><span class="linenos">395</span></a> <span class="n">constant_mapping</span> <span class="o">=</span> <span class="p">{}</span> -</span><span id="propagate_constants-396"><a href="#propagate_constants-396"><span class="linenos">396</span></a> <span class="k">for</span> <span class="n">eq</span> <span class="ow">in</span> <span class="n">find_all_in_scope</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">EQ</span><span class="p">):</span> -</span><span id="propagate_constants-397"><a href="#propagate_constants-397"><span class="linenos">397</span></a> <span class="n">l</span><span class="p">,</span> <span class="n">r</span> <span class="o">=</span> <span class="n">eq</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="n">eq</span><span class="o">.</span><span class="n">right</span> -</span><span id="propagate_constants-398"><a href="#propagate_constants-398"><span class="linenos">398</span></a> -</span><span id="propagate_constants-399"><a href="#propagate_constants-399"><span class="linenos">399</span></a> <span class="c1"># TODO: create a helper that can be used to detect nested literal expressions such</span> -</span><span id="propagate_constants-400"><a href="#propagate_constants-400"><span class="linenos">400</span></a> <span class="c1"># as CAST(123456 AS BIGINT), since we usually want to treat those as literals too</span> -</span><span id="propagate_constants-401"><a href="#propagate_constants-401"><span class="linenos">401</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">l</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">r</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="p">):</span> -</span><span id="propagate_constants-402"><a href="#propagate_constants-402"><span class="linenos">402</span></a> <span class="k">pass</span> -</span><span id="propagate_constants-403"><a href="#propagate_constants-403"><span class="linenos">403</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">r</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">l</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="p">):</span> -</span><span id="propagate_constants-404"><a href="#propagate_constants-404"><span class="linenos">404</span></a> <span class="n">l</span><span class="p">,</span> <span class="n">r</span> <span class="o">=</span> <span class="n">r</span><span class="p">,</span> <span class="n">l</span> -</span><span id="propagate_constants-405"><a href="#propagate_constants-405"><span class="linenos">405</span></a> <span class="k">else</span><span class="p">:</span> -</span><span id="propagate_constants-406"><a href="#propagate_constants-406"><span class="linenos">406</span></a> <span class="k">continue</span> -</span><span id="propagate_constants-407"><a href="#propagate_constants-407"><span class="linenos">407</span></a> -</span><span id="propagate_constants-408"><a href="#propagate_constants-408"><span class="linenos">408</span></a> <span class="n">constant_mapping</span><span class="p">[</span><span class="n">l</span><span class="p">]</span> <span class="o">=</span> <span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">l</span><span class="p">),</span> <span class="n">r</span><span class="p">)</span> + <div class="pdoc-code codehilite"><pre><span></span><span id="propagate_constants-381"><a href="#propagate_constants-381"><span class="linenos">381</span></a><span class="k">def</span> <span class="nf">propagate_constants</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span> +</span><span id="propagate_constants-382"><a href="#propagate_constants-382"><span class="linenos">382</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="propagate_constants-383"><a href="#propagate_constants-383"><span class="linenos">383</span></a><span class="sd"> Propagate constants for conjunctions in DNF:</span> +</span><span id="propagate_constants-384"><a href="#propagate_constants-384"><span class="linenos">384</span></a> +</span><span id="propagate_constants-385"><a href="#propagate_constants-385"><span class="linenos">385</span></a><span class="sd"> SELECT * FROM t WHERE a = b AND b = 5 becomes</span> +</span><span id="propagate_constants-386"><a href="#propagate_constants-386"><span class="linenos">386</span></a><span class="sd"> SELECT * FROM t WHERE a = 5 AND b = 5</span> +</span><span id="propagate_constants-387"><a href="#propagate_constants-387"><span class="linenos">387</span></a> +</span><span id="propagate_constants-388"><a href="#propagate_constants-388"><span class="linenos">388</span></a><span class="sd"> Reference: https://www.sqlite.org/optoverview.html</span> +</span><span id="propagate_constants-389"><a href="#propagate_constants-389"><span class="linenos">389</span></a><span class="sd"> """</span> +</span><span id="propagate_constants-390"><a href="#propagate_constants-390"><span class="linenos">390</span></a> +</span><span id="propagate_constants-391"><a href="#propagate_constants-391"><span class="linenos">391</span></a> <span class="k">if</span> <span class="p">(</span> +</span><span id="propagate_constants-392"><a href="#propagate_constants-392"><span class="linenos">392</span></a> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">)</span> +</span><span id="propagate_constants-393"><a href="#propagate_constants-393"><span class="linenos">393</span></a> <span class="ow">and</span> <span class="p">(</span><span class="n">root</span> <span class="ow">or</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">same_parent</span><span class="p">)</span> +</span><span id="propagate_constants-394"><a href="#propagate_constants-394"><span class="linenos">394</span></a> <span class="ow">and</span> <span class="n">sqlglot</span><span class="o">.</span><span class="n">optimizer</span><span class="o">.</span><span class="n">normalize</span><span class="o">.</span><span class="n">normalized</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">dnf</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span> +</span><span id="propagate_constants-395"><a href="#propagate_constants-395"><span class="linenos">395</span></a> <span class="p">):</span> +</span><span id="propagate_constants-396"><a href="#propagate_constants-396"><span class="linenos">396</span></a> <span class="n">constant_mapping</span> <span class="o">=</span> <span class="p">{}</span> +</span><span id="propagate_constants-397"><a href="#propagate_constants-397"><span class="linenos">397</span></a> <span class="k">for</span> <span class="n">expr</span><span class="p">,</span> <span class="o">*</span><span class="n">_</span> <span class="ow">in</span> <span class="n">walk_in_scope</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">prune</span><span class="o">=</span><span class="k">lambda</span> <span class="n">node</span><span class="p">,</span> <span class="o">*</span><span class="n">_</span><span class="p">:</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">If</span><span class="p">)):</span> +</span><span id="propagate_constants-398"><a href="#propagate_constants-398"><span class="linenos">398</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expr</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">EQ</span><span class="p">):</span> +</span><span id="propagate_constants-399"><a href="#propagate_constants-399"><span class="linenos">399</span></a> <span class="n">l</span><span class="p">,</span> <span class="n">r</span> <span class="o">=</span> <span class="n">expr</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="n">expr</span><span class="o">.</span><span class="n">right</span> +</span><span id="propagate_constants-400"><a href="#propagate_constants-400"><span class="linenos">400</span></a> +</span><span id="propagate_constants-401"><a href="#propagate_constants-401"><span class="linenos">401</span></a> <span class="c1"># TODO: create a helper that can be used to detect nested literal expressions such</span> +</span><span id="propagate_constants-402"><a href="#propagate_constants-402"><span class="linenos">402</span></a> <span class="c1"># as CAST(123456 AS BIGINT), since we usually want to treat those as literals too</span> +</span><span id="propagate_constants-403"><a href="#propagate_constants-403"><span class="linenos">403</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">l</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">r</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="p">):</span> +</span><span id="propagate_constants-404"><a href="#propagate_constants-404"><span class="linenos">404</span></a> <span class="k">pass</span> +</span><span id="propagate_constants-405"><a href="#propagate_constants-405"><span class="linenos">405</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">r</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">l</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="p">):</span> +</span><span id="propagate_constants-406"><a href="#propagate_constants-406"><span class="linenos">406</span></a> <span class="n">l</span><span class="p">,</span> <span class="n">r</span> <span class="o">=</span> <span class="n">r</span><span class="p">,</span> <span class="n">l</span> +</span><span id="propagate_constants-407"><a href="#propagate_constants-407"><span class="linenos">407</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="propagate_constants-408"><a href="#propagate_constants-408"><span class="linenos">408</span></a> <span class="k">continue</span> </span><span id="propagate_constants-409"><a href="#propagate_constants-409"><span class="linenos">409</span></a> -</span><span id="propagate_constants-410"><a href="#propagate_constants-410"><span class="linenos">410</span></a> <span class="k">if</span> <span class="n">constant_mapping</span><span class="p">:</span> -</span><span id="propagate_constants-411"><a href="#propagate_constants-411"><span class="linenos">411</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">find_all_in_scope</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">):</span> -</span><span id="propagate_constants-412"><a href="#propagate_constants-412"><span class="linenos">412</span></a> <span class="n">parent</span> <span class="o">=</span> <span class="n">column</span><span class="o">.</span><span class="n">parent</span> -</span><span id="propagate_constants-413"><a href="#propagate_constants-413"><span class="linenos">413</span></a> <span class="n">column_id</span><span class="p">,</span> <span class="n">constant</span> <span class="o">=</span> <span class="n">constant_mapping</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">column</span><span class="p">)</span> <span class="ow">or</span> <span class="p">(</span><span class="kc">None</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span> -</span><span id="propagate_constants-414"><a href="#propagate_constants-414"><span class="linenos">414</span></a> <span class="k">if</span> <span class="p">(</span> -</span><span id="propagate_constants-415"><a href="#propagate_constants-415"><span class="linenos">415</span></a> <span class="n">column_id</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span> -</span><span id="propagate_constants-416"><a href="#propagate_constants-416"><span class="linenos">416</span></a> <span class="ow">and</span> <span class="nb">id</span><span class="p">(</span><span class="n">column</span><span class="p">)</span> <span class="o">!=</span> <span class="n">column_id</span> -</span><span id="propagate_constants-417"><a href="#propagate_constants-417"><span class="linenos">417</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Is</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="o">.</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Null</span><span class="p">))</span> -</span><span id="propagate_constants-418"><a href="#propagate_constants-418"><span class="linenos">418</span></a> <span class="p">):</span> -</span><span id="propagate_constants-419"><a href="#propagate_constants-419"><span class="linenos">419</span></a> <span class="n">column</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">constant</span><span class="o">.</span><span class="n">copy</span><span class="p">())</span> -</span><span id="propagate_constants-420"><a href="#propagate_constants-420"><span class="linenos">420</span></a> -</span><span id="propagate_constants-421"><a href="#propagate_constants-421"><span class="linenos">421</span></a> <span class="k">return</span> <span class="n">expression</span> +</span><span id="propagate_constants-410"><a href="#propagate_constants-410"><span class="linenos">410</span></a> <span class="n">constant_mapping</span><span class="p">[</span><span class="n">l</span><span class="p">]</span> <span class="o">=</span> <span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">l</span><span class="p">),</span> <span class="n">r</span><span class="p">)</span> +</span><span id="propagate_constants-411"><a href="#propagate_constants-411"><span class="linenos">411</span></a> +</span><span id="propagate_constants-412"><a href="#propagate_constants-412"><span class="linenos">412</span></a> <span class="k">if</span> <span class="n">constant_mapping</span><span class="p">:</span> +</span><span id="propagate_constants-413"><a href="#propagate_constants-413"><span class="linenos">413</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">find_all_in_scope</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">):</span> +</span><span id="propagate_constants-414"><a href="#propagate_constants-414"><span class="linenos">414</span></a> <span class="n">parent</span> <span class="o">=</span> <span class="n">column</span><span class="o">.</span><span class="n">parent</span> +</span><span id="propagate_constants-415"><a href="#propagate_constants-415"><span class="linenos">415</span></a> <span class="n">column_id</span><span class="p">,</span> <span class="n">constant</span> <span class="o">=</span> <span class="n">constant_mapping</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">column</span><span class="p">)</span> <span class="ow">or</span> <span class="p">(</span><span class="kc">None</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span> +</span><span id="propagate_constants-416"><a href="#propagate_constants-416"><span class="linenos">416</span></a> <span class="k">if</span> <span class="p">(</span> +</span><span id="propagate_constants-417"><a href="#propagate_constants-417"><span class="linenos">417</span></a> <span class="n">column_id</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span> +</span><span id="propagate_constants-418"><a href="#propagate_constants-418"><span class="linenos">418</span></a> <span class="ow">and</span> <span class="nb">id</span><span class="p">(</span><span class="n">column</span><span class="p">)</span> <span class="o">!=</span> <span class="n">column_id</span> +</span><span id="propagate_constants-419"><a href="#propagate_constants-419"><span class="linenos">419</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Is</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="o">.</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Null</span><span class="p">))</span> +</span><span id="propagate_constants-420"><a href="#propagate_constants-420"><span class="linenos">420</span></a> <span class="p">):</span> +</span><span id="propagate_constants-421"><a href="#propagate_constants-421"><span class="linenos">421</span></a> <span class="n">column</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">constant</span><span class="o">.</span><span class="n">copy</span><span class="p">())</span> +</span><span id="propagate_constants-422"><a href="#propagate_constants-422"><span class="linenos">422</span></a> +</span><span id="propagate_constants-423"><a href="#propagate_constants-423"><span class="linenos">423</span></a> <span class="k">return</span> <span class="n">expression</span> </span></pre></div> @@ -1910,11 +1954,11 @@ SELECT * FROM t WHERE a = 5 AND b = 5</p> </div> <a class="headerlink" href="#simplify_equality"></a> - <div class="pdoc-code codehilite"><pre><span></span><span id="simplify_equality-106"><a href="#simplify_equality-106"><span class="linenos">106</span></a> <span class="k">def</span> <span class="nf">wrapped</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span> -</span><span id="simplify_equality-107"><a href="#simplify_equality-107"><span class="linenos">107</span></a> <span class="k">try</span><span class="p">:</span> -</span><span id="simplify_equality-108"><a href="#simplify_equality-108"><span class="linenos">108</span></a> <span class="k">return</span> <span class="n">func</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span> -</span><span id="simplify_equality-109"><a href="#simplify_equality-109"><span class="linenos">109</span></a> <span class="k">except</span> <span class="n">exceptions</span><span class="p">:</span> -</span><span id="simplify_equality-110"><a href="#simplify_equality-110"><span class="linenos">110</span></a> <span class="k">return</span> <span class="n">expression</span> + <div class="pdoc-code codehilite"><pre><span></span><span id="simplify_equality-107"><a href="#simplify_equality-107"><span class="linenos">107</span></a> <span class="k">def</span> <span class="nf">wrapped</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span> +</span><span id="simplify_equality-108"><a href="#simplify_equality-108"><span class="linenos">108</span></a> <span class="k">try</span><span class="p">:</span> +</span><span id="simplify_equality-109"><a href="#simplify_equality-109"><span class="linenos">109</span></a> <span class="k">return</span> <span class="n">func</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span> +</span><span id="simplify_equality-110"><a href="#simplify_equality-110"><span class="linenos">110</span></a> <span class="k">except</span> <span class="n">exceptions</span><span class="p">:</span> +</span><span id="simplify_equality-111"><a href="#simplify_equality-111"><span class="linenos">111</span></a> <span class="k">return</span> <span class="n">expression</span> </span></pre></div> @@ -1946,19 +1990,19 @@ a b </div> <a class="headerlink" href="#simplify_literals"></a> - <div class="pdoc-code codehilite"><pre><span></span><span id="simplify_literals-498"><a href="#simplify_literals-498"><span class="linenos">498</span></a><span class="k">def</span> <span class="nf">simplify_literals</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span> -</span><span id="simplify_literals-499"><a href="#simplify_literals-499"><span class="linenos">499</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Binary</span><span class="p">)</span> <span class="ow">and</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Connector</span><span class="p">):</span> -</span><span id="simplify_literals-500"><a href="#simplify_literals-500"><span class="linenos">500</span></a> <span class="k">return</span> <span class="n">_flat_simplify</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">_simplify_binary</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span> -</span><span id="simplify_literals-501"><a href="#simplify_literals-501"><span class="linenos">501</span></a> -</span><span id="simplify_literals-502"><a href="#simplify_literals-502"><span class="linenos">502</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Neg</span><span class="p">):</span> -</span><span id="simplify_literals-503"><a href="#simplify_literals-503"><span class="linenos">503</span></a> <span class="n">this</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span> -</span><span id="simplify_literals-504"><a href="#simplify_literals-504"><span class="linenos">504</span></a> <span class="k">if</span> <span class="n">this</span><span class="o">.</span><span class="n">is_number</span><span class="p">:</span> -</span><span id="simplify_literals-505"><a href="#simplify_literals-505"><span class="linenos">505</span></a> <span class="n">value</span> <span class="o">=</span> <span class="n">this</span><span class="o">.</span><span class="n">name</span> -</span><span id="simplify_literals-506"><a href="#simplify_literals-506"><span class="linenos">506</span></a> <span class="k">if</span> <span class="n">value</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">==</span> <span class="s2">"-"</span><span class="p">:</span> -</span><span id="simplify_literals-507"><a href="#simplify_literals-507"><span class="linenos">507</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="o">.</span><span class="n">number</span><span class="p">(</span><span class="n">value</span><span class="p">[</span><span class="mi">1</span><span class="p">:])</span> -</span><span id="simplify_literals-508"><a href="#simplify_literals-508"><span class="linenos">508</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="o">.</span><span class="n">number</span><span class="p">(</span><span class="sa">f</span><span class="s2">"-</span><span class="si">{</span><span class="n">value</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> -</span><span id="simplify_literals-509"><a href="#simplify_literals-509"><span class="linenos">509</span></a> -</span><span id="simplify_literals-510"><a href="#simplify_literals-510"><span class="linenos">510</span></a> <span class="k">return</span> <span class="n">expression</span> + <div class="pdoc-code codehilite"><pre><span></span><span id="simplify_literals-502"><a href="#simplify_literals-502"><span class="linenos">502</span></a><span class="k">def</span> <span class="nf">simplify_literals</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span> +</span><span id="simplify_literals-503"><a href="#simplify_literals-503"><span class="linenos">503</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Binary</span><span class="p">)</span> <span class="ow">and</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Connector</span><span class="p">):</span> +</span><span id="simplify_literals-504"><a href="#simplify_literals-504"><span class="linenos">504</span></a> <span class="k">return</span> <span class="n">_flat_simplify</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">_simplify_binary</span><span class="p">,</span> <span class="n">root</span><span class="p">)</span> +</span><span id="simplify_literals-505"><a href="#simplify_literals-505"><span class="linenos">505</span></a> +</span><span id="simplify_literals-506"><a href="#simplify_literals-506"><span class="linenos">506</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Neg</span><span class="p">):</span> +</span><span id="simplify_literals-507"><a href="#simplify_literals-507"><span class="linenos">507</span></a> <span class="n">this</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span> +</span><span id="simplify_literals-508"><a href="#simplify_literals-508"><span class="linenos">508</span></a> <span class="k">if</span> <span class="n">this</span><span class="o">.</span><span class="n">is_number</span><span class="p">:</span> +</span><span id="simplify_literals-509"><a href="#simplify_literals-509"><span class="linenos">509</span></a> <span class="n">value</span> <span class="o">=</span> <span class="n">this</span><span class="o">.</span><span class="n">name</span> +</span><span id="simplify_literals-510"><a href="#simplify_literals-510"><span class="linenos">510</span></a> <span class="k">if</span> <span class="n">value</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">==</span> <span class="s2">"-"</span><span class="p">:</span> +</span><span id="simplify_literals-511"><a href="#simplify_literals-511"><span class="linenos">511</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="o">.</span><span class="n">number</span><span class="p">(</span><span class="n">value</span><span class="p">[</span><span class="mi">1</span><span class="p">:])</span> +</span><span id="simplify_literals-512"><a href="#simplify_literals-512"><span class="linenos">512</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="o">.</span><span class="n">number</span><span class="p">(</span><span class="sa">f</span><span class="s2">"-</span><span class="si">{</span><span class="n">value</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> +</span><span id="simplify_literals-513"><a href="#simplify_literals-513"><span class="linenos">513</span></a> +</span><span id="simplify_literals-514"><a href="#simplify_literals-514"><span class="linenos">514</span></a> <span class="k">return</span> <span class="n">expression</span> </span></pre></div> @@ -1976,24 +2020,24 @@ a b </div> <a class="headerlink" href="#simplify_parens"></a> - <div class="pdoc-code codehilite"><pre><span></span><span id="simplify_parens-573"><a href="#simplify_parens-573"><span class="linenos">573</span></a><span class="k">def</span> <span class="nf">simplify_parens</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span> -</span><span id="simplify_parens-574"><a href="#simplify_parens-574"><span class="linenos">574</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Paren</span><span class="p">):</span> -</span><span id="simplify_parens-575"><a href="#simplify_parens-575"><span class="linenos">575</span></a> <span class="k">return</span> <span class="n">expression</span> -</span><span id="simplify_parens-576"><a href="#simplify_parens-576"><span class="linenos">576</span></a> -</span><span id="simplify_parens-577"><a href="#simplify_parens-577"><span class="linenos">577</span></a> <span class="n">this</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span> -</span><span id="simplify_parens-578"><a href="#simplify_parens-578"><span class="linenos">578</span></a> <span class="n">parent</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">parent</span> -</span><span id="simplify_parens-579"><a href="#simplify_parens-579"><span class="linenos">579</span></a> -</span><span id="simplify_parens-580"><a href="#simplify_parens-580"><span class="linenos">580</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Select</span><span class="p">)</span> <span class="ow">and</span> <span class="p">(</span> -</span><span id="simplify_parens-581"><a href="#simplify_parens-581"><span class="linenos">581</span></a> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Condition</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Binary</span><span class="p">))</span> -</span><span id="simplify_parens-582"><a href="#simplify_parens-582"><span class="linenos">582</span></a> <span class="ow">or</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Paren</span><span class="p">)</span> -</span><span id="simplify_parens-583"><a href="#simplify_parens-583"><span class="linenos">583</span></a> <span class="ow">or</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Binary</span><span class="p">)</span> -</span><span id="simplify_parens-584"><a href="#simplify_parens-584"><span class="linenos">584</span></a> <span class="ow">or</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Predicate</span><span class="p">)</span> <span class="ow">and</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Predicate</span><span class="p">))</span> -</span><span id="simplify_parens-585"><a href="#simplify_parens-585"><span class="linenos">585</span></a> <span class="ow">or</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">))</span> -</span><span id="simplify_parens-586"><a href="#simplify_parens-586"><span class="linenos">586</span></a> <span class="ow">or</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Mul</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Mul</span><span class="p">))</span> -</span><span id="simplify_parens-587"><a href="#simplify_parens-587"><span class="linenos">587</span></a> <span class="ow">or</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Mul</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Sub</span><span class="p">)))</span> -</span><span id="simplify_parens-588"><a href="#simplify_parens-588"><span class="linenos">588</span></a> <span class="p">):</span> -</span><span id="simplify_parens-589"><a href="#simplify_parens-589"><span class="linenos">589</span></a> <span class="k">return</span> <span class="n">this</span> -</span><span id="simplify_parens-590"><a href="#simplify_parens-590"><span class="linenos">590</span></a> <span class="k">return</span> <span class="n">expression</span> + <div class="pdoc-code codehilite"><pre><span></span><span id="simplify_parens-577"><a href="#simplify_parens-577"><span class="linenos">577</span></a><span class="k">def</span> <span class="nf">simplify_parens</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span> +</span><span id="simplify_parens-578"><a href="#simplify_parens-578"><span class="linenos">578</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Paren</span><span class="p">):</span> +</span><span id="simplify_parens-579"><a href="#simplify_parens-579"><span class="linenos">579</span></a> <span class="k">return</span> <span class="n">expression</span> +</span><span id="simplify_parens-580"><a href="#simplify_parens-580"><span class="linenos">580</span></a> +</span><span id="simplify_parens-581"><a href="#simplify_parens-581"><span class="linenos">581</span></a> <span class="n">this</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span> +</span><span id="simplify_parens-582"><a href="#simplify_parens-582"><span class="linenos">582</span></a> <span class="n">parent</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">parent</span> +</span><span id="simplify_parens-583"><a href="#simplify_parens-583"><span class="linenos">583</span></a> +</span><span id="simplify_parens-584"><a href="#simplify_parens-584"><span class="linenos">584</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Select</span><span class="p">)</span> <span class="ow">and</span> <span class="p">(</span> +</span><span id="simplify_parens-585"><a href="#simplify_parens-585"><span class="linenos">585</span></a> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Condition</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Binary</span><span class="p">))</span> +</span><span id="simplify_parens-586"><a href="#simplify_parens-586"><span class="linenos">586</span></a> <span class="ow">or</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Paren</span><span class="p">)</span> +</span><span id="simplify_parens-587"><a href="#simplify_parens-587"><span class="linenos">587</span></a> <span class="ow">or</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Binary</span><span class="p">)</span> +</span><span id="simplify_parens-588"><a href="#simplify_parens-588"><span class="linenos">588</span></a> <span class="ow">or</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Predicate</span><span class="p">)</span> <span class="ow">and</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Predicate</span><span class="p">))</span> +</span><span id="simplify_parens-589"><a href="#simplify_parens-589"><span class="linenos">589</span></a> <span class="ow">or</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">))</span> +</span><span id="simplify_parens-590"><a href="#simplify_parens-590"><span class="linenos">590</span></a> <span class="ow">or</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Mul</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Mul</span><span class="p">))</span> +</span><span id="simplify_parens-591"><a href="#simplify_parens-591"><span class="linenos">591</span></a> <span class="ow">or</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Mul</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Add</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Sub</span><span class="p">)))</span> +</span><span id="simplify_parens-592"><a href="#simplify_parens-592"><span class="linenos">592</span></a> <span class="p">):</span> +</span><span id="simplify_parens-593"><a href="#simplify_parens-593"><span class="linenos">593</span></a> <span class="k">return</span> <span class="n">this</span> +</span><span id="simplify_parens-594"><a href="#simplify_parens-594"><span class="linenos">594</span></a> <span class="k">return</span> <span class="n">expression</span> </span></pre></div> @@ -2024,62 +2068,62 @@ a b </div> <a class="headerlink" href="#simplify_coalesce"></a> - <div class="pdoc-code codehilite"><pre><span></span><span id="simplify_coalesce-600"><a href="#simplify_coalesce-600"><span class="linenos">600</span></a><span class="k">def</span> <span class="nf">simplify_coalesce</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span> -</span><span id="simplify_coalesce-601"><a href="#simplify_coalesce-601"><span class="linenos">601</span></a> <span class="c1"># COALESCE(x) -> x</span> -</span><span id="simplify_coalesce-602"><a href="#simplify_coalesce-602"><span class="linenos">602</span></a> <span class="k">if</span> <span class="p">(</span> -</span><span id="simplify_coalesce-603"><a href="#simplify_coalesce-603"><span class="linenos">603</span></a> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Coalesce</span><span class="p">)</span> -</span><span id="simplify_coalesce-604"><a href="#simplify_coalesce-604"><span class="linenos">604</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">expressions</span> -</span><span id="simplify_coalesce-605"><a href="#simplify_coalesce-605"><span class="linenos">605</span></a> <span class="c1"># COALESCE is also used as a Spark partitioning hint</span> -</span><span id="simplify_coalesce-606"><a href="#simplify_coalesce-606"><span class="linenos">606</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Hint</span><span class="p">)</span> -</span><span id="simplify_coalesce-607"><a href="#simplify_coalesce-607"><span class="linenos">607</span></a> <span class="p">):</span> -</span><span id="simplify_coalesce-608"><a href="#simplify_coalesce-608"><span class="linenos">608</span></a> <span class="k">return</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span> -</span><span id="simplify_coalesce-609"><a href="#simplify_coalesce-609"><span class="linenos">609</span></a> -</span><span id="simplify_coalesce-610"><a href="#simplify_coalesce-610"><span class="linenos">610</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">COMPARISONS</span><span class="p">):</span> -</span><span id="simplify_coalesce-611"><a href="#simplify_coalesce-611"><span class="linenos">611</span></a> <span class="k">return</span> <span class="n">expression</span> -</span><span id="simplify_coalesce-612"><a href="#simplify_coalesce-612"><span class="linenos">612</span></a> -</span><span id="simplify_coalesce-613"><a href="#simplify_coalesce-613"><span class="linenos">613</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Coalesce</span><span class="p">):</span> -</span><span id="simplify_coalesce-614"><a href="#simplify_coalesce-614"><span class="linenos">614</span></a> <span class="n">coalesce</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">left</span> -</span><span id="simplify_coalesce-615"><a href="#simplify_coalesce-615"><span class="linenos">615</span></a> <span class="n">other</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">right</span> -</span><span id="simplify_coalesce-616"><a href="#simplify_coalesce-616"><span class="linenos">616</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">right</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Coalesce</span><span class="p">):</span> -</span><span id="simplify_coalesce-617"><a href="#simplify_coalesce-617"><span class="linenos">617</span></a> <span class="n">coalesce</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">right</span> -</span><span id="simplify_coalesce-618"><a href="#simplify_coalesce-618"><span class="linenos">618</span></a> <span class="n">other</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">left</span> -</span><span id="simplify_coalesce-619"><a href="#simplify_coalesce-619"><span class="linenos">619</span></a> <span class="k">else</span><span class="p">:</span> -</span><span id="simplify_coalesce-620"><a href="#simplify_coalesce-620"><span class="linenos">620</span></a> <span class="k">return</span> <span class="n">expression</span> -</span><span id="simplify_coalesce-621"><a href="#simplify_coalesce-621"><span class="linenos">621</span></a> -</span><span id="simplify_coalesce-622"><a href="#simplify_coalesce-622"><span class="linenos">622</span></a> <span class="c1"># This transformation is valid for non-constants,</span> -</span><span id="simplify_coalesce-623"><a href="#simplify_coalesce-623"><span class="linenos">623</span></a> <span class="c1"># but it really only does anything if they are both constants.</span> -</span><span id="simplify_coalesce-624"><a href="#simplify_coalesce-624"><span class="linenos">624</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">other</span><span class="p">,</span> <span class="n">CONSTANTS</span><span class="p">):</span> -</span><span id="simplify_coalesce-625"><a href="#simplify_coalesce-625"><span class="linenos">625</span></a> <span class="k">return</span> <span class="n">expression</span> -</span><span id="simplify_coalesce-626"><a href="#simplify_coalesce-626"><span class="linenos">626</span></a> -</span><span id="simplify_coalesce-627"><a href="#simplify_coalesce-627"><span class="linenos">627</span></a> <span class="c1"># Find the first constant arg</span> -</span><span id="simplify_coalesce-628"><a href="#simplify_coalesce-628"><span class="linenos">628</span></a> <span class="k">for</span> <span class="n">arg_index</span><span class="p">,</span> <span class="n">arg</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="n">coalesce</span><span class="o">.</span><span class="n">expressions</span><span class="p">):</span> -</span><span id="simplify_coalesce-629"><a href="#simplify_coalesce-629"><span class="linenos">629</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">arg</span><span class="p">,</span> <span class="n">CONSTANTS</span><span class="p">):</span> -</span><span id="simplify_coalesce-630"><a href="#simplify_coalesce-630"><span class="linenos">630</span></a> <span class="k">break</span> -</span><span id="simplify_coalesce-631"><a href="#simplify_coalesce-631"><span class="linenos">631</span></a> <span class="k">else</span><span class="p">:</span> -</span><span id="simplify_coalesce-632"><a href="#simplify_coalesce-632"><span class="linenos">632</span></a> <span class="k">return</span> <span class="n">expression</span> -</span><span id="simplify_coalesce-633"><a href="#simplify_coalesce-633"><span class="linenos">633</span></a> -</span><span id="simplify_coalesce-634"><a href="#simplify_coalesce-634"><span class="linenos">634</span></a> <span class="n">coalesce</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"expressions"</span><span class="p">,</span> <span class="n">coalesce</span><span class="o">.</span><span class="n">expressions</span><span class="p">[:</span><span class="n">arg_index</span><span class="p">])</span> -</span><span id="simplify_coalesce-635"><a href="#simplify_coalesce-635"><span class="linenos">635</span></a> -</span><span id="simplify_coalesce-636"><a href="#simplify_coalesce-636"><span class="linenos">636</span></a> <span class="c1"># Remove the COALESCE function. This is an optimization, skipping a simplify iteration,</span> -</span><span id="simplify_coalesce-637"><a href="#simplify_coalesce-637"><span class="linenos">637</span></a> <span class="c1"># since we already remove COALESCE at the top of this function.</span> -</span><span id="simplify_coalesce-638"><a href="#simplify_coalesce-638"><span class="linenos">638</span></a> <span class="n">coalesce</span> <span class="o">=</span> <span class="n">coalesce</span> <span class="k">if</span> <span class="n">coalesce</span><span class="o">.</span><span class="n">expressions</span> <span class="k">else</span> <span class="n">coalesce</span><span class="o">.</span><span class="n">this</span> + <div class="pdoc-code codehilite"><pre><span></span><span id="simplify_coalesce-604"><a href="#simplify_coalesce-604"><span class="linenos">604</span></a><span class="k">def</span> <span class="nf">simplify_coalesce</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span> +</span><span id="simplify_coalesce-605"><a href="#simplify_coalesce-605"><span class="linenos">605</span></a> <span class="c1"># COALESCE(x) -> x</span> +</span><span id="simplify_coalesce-606"><a href="#simplify_coalesce-606"><span class="linenos">606</span></a> <span class="k">if</span> <span class="p">(</span> +</span><span id="simplify_coalesce-607"><a href="#simplify_coalesce-607"><span class="linenos">607</span></a> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Coalesce</span><span class="p">)</span> +</span><span id="simplify_coalesce-608"><a href="#simplify_coalesce-608"><span class="linenos">608</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">expressions</span> +</span><span id="simplify_coalesce-609"><a href="#simplify_coalesce-609"><span class="linenos">609</span></a> <span class="c1"># COALESCE is also used as a Spark partitioning hint</span> +</span><span id="simplify_coalesce-610"><a href="#simplify_coalesce-610"><span class="linenos">610</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Hint</span><span class="p">)</span> +</span><span id="simplify_coalesce-611"><a href="#simplify_coalesce-611"><span class="linenos">611</span></a> <span class="p">):</span> +</span><span id="simplify_coalesce-612"><a href="#simplify_coalesce-612"><span class="linenos">612</span></a> <span class="k">return</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span> +</span><span id="simplify_coalesce-613"><a href="#simplify_coalesce-613"><span class="linenos">613</span></a> +</span><span id="simplify_coalesce-614"><a href="#simplify_coalesce-614"><span class="linenos">614</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">COMPARISONS</span><span class="p">):</span> +</span><span id="simplify_coalesce-615"><a href="#simplify_coalesce-615"><span class="linenos">615</span></a> <span class="k">return</span> <span class="n">expression</span> +</span><span id="simplify_coalesce-616"><a href="#simplify_coalesce-616"><span class="linenos">616</span></a> +</span><span id="simplify_coalesce-617"><a href="#simplify_coalesce-617"><span class="linenos">617</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Coalesce</span><span class="p">):</span> +</span><span id="simplify_coalesce-618"><a href="#simplify_coalesce-618"><span class="linenos">618</span></a> <span class="n">coalesce</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">left</span> +</span><span id="simplify_coalesce-619"><a href="#simplify_coalesce-619"><span class="linenos">619</span></a> <span class="n">other</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">right</span> +</span><span id="simplify_coalesce-620"><a href="#simplify_coalesce-620"><span class="linenos">620</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">right</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Coalesce</span><span class="p">):</span> +</span><span id="simplify_coalesce-621"><a href="#simplify_coalesce-621"><span class="linenos">621</span></a> <span class="n">coalesce</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">right</span> +</span><span id="simplify_coalesce-622"><a href="#simplify_coalesce-622"><span class="linenos">622</span></a> <span class="n">other</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">left</span> +</span><span id="simplify_coalesce-623"><a href="#simplify_coalesce-623"><span class="linenos">623</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="simplify_coalesce-624"><a href="#simplify_coalesce-624"><span class="linenos">624</span></a> <span class="k">return</span> <span class="n">expression</span> +</span><span id="simplify_coalesce-625"><a href="#simplify_coalesce-625"><span class="linenos">625</span></a> +</span><span id="simplify_coalesce-626"><a href="#simplify_coalesce-626"><span class="linenos">626</span></a> <span class="c1"># This transformation is valid for non-constants,</span> +</span><span id="simplify_coalesce-627"><a href="#simplify_coalesce-627"><span class="linenos">627</span></a> <span class="c1"># but it really only does anything if they are both constants.</span> +</span><span id="simplify_coalesce-628"><a href="#simplify_coalesce-628"><span class="linenos">628</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">other</span><span class="p">,</span> <span class="n">CONSTANTS</span><span class="p">):</span> +</span><span id="simplify_coalesce-629"><a href="#simplify_coalesce-629"><span class="linenos">629</span></a> <span class="k">return</span> <span class="n">expression</span> +</span><span id="simplify_coalesce-630"><a href="#simplify_coalesce-630"><span class="linenos">630</span></a> +</span><span id="simplify_coalesce-631"><a href="#simplify_coalesce-631"><span class="linenos">631</span></a> <span class="c1"># Find the first constant arg</span> +</span><span id="simplify_coalesce-632"><a href="#simplify_coalesce-632"><span class="linenos">632</span></a> <span class="k">for</span> <span class="n">arg_index</span><span class="p">,</span> <span class="n">arg</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="n">coalesce</span><span class="o">.</span><span class="n">expressions</span><span class="p">):</span> +</span><span id="simplify_coalesce-633"><a href="#simplify_coalesce-633"><span class="linenos">633</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">arg</span><span class="p">,</span> <span class="n">CONSTANTS</span><span class="p">):</span> +</span><span id="simplify_coalesce-634"><a href="#simplify_coalesce-634"><span class="linenos">634</span></a> <span class="k">break</span> +</span><span id="simplify_coalesce-635"><a href="#simplify_coalesce-635"><span class="linenos">635</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="simplify_coalesce-636"><a href="#simplify_coalesce-636"><span class="linenos">636</span></a> <span class="k">return</span> <span class="n">expression</span> +</span><span id="simplify_coalesce-637"><a href="#simplify_coalesce-637"><span class="linenos">637</span></a> +</span><span id="simplify_coalesce-638"><a href="#simplify_coalesce-638"><span class="linenos">638</span></a> <span class="n">coalesce</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"expressions"</span><span class="p">,</span> <span class="n">coalesce</span><span class="o">.</span><span class="n">expressions</span><span class="p">[:</span><span class="n">arg_index</span><span class="p">])</span> </span><span id="simplify_coalesce-639"><a href="#simplify_coalesce-639"><span class="linenos">639</span></a> -</span><span id="simplify_coalesce-640"><a href="#simplify_coalesce-640"><span class="linenos">640</span></a> <span class="c1"># This expression is more complex than when we started, but it will get simplified further</span> -</span><span id="simplify_coalesce-641"><a href="#simplify_coalesce-641"><span class="linenos">641</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">paren</span><span class="p">(</span> -</span><span id="simplify_coalesce-642"><a href="#simplify_coalesce-642"><span class="linenos">642</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">or_</span><span class="p">(</span> -</span><span id="simplify_coalesce-643"><a href="#simplify_coalesce-643"><span class="linenos">643</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">and_</span><span class="p">(</span> -</span><span id="simplify_coalesce-644"><a href="#simplify_coalesce-644"><span class="linenos">644</span></a> <span class="n">coalesce</span><span class="o">.</span><span class="n">is_</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">())</span><span class="o">.</span><span class="n">not_</span><span class="p">(</span><span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">),</span> -</span><span id="simplify_coalesce-645"><a href="#simplify_coalesce-645"><span class="linenos">645</span></a> <span class="n">expression</span><span class="o">.</span><span class="n">copy</span><span class="p">(),</span> -</span><span id="simplify_coalesce-646"><a href="#simplify_coalesce-646"><span class="linenos">646</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> -</span><span id="simplify_coalesce-647"><a href="#simplify_coalesce-647"><span class="linenos">647</span></a> <span class="p">),</span> -</span><span id="simplify_coalesce-648"><a href="#simplify_coalesce-648"><span class="linenos">648</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">and_</span><span class="p">(</span> -</span><span id="simplify_coalesce-649"><a href="#simplify_coalesce-649"><span class="linenos">649</span></a> <span class="n">coalesce</span><span class="o">.</span><span class="n">is_</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()),</span> -</span><span id="simplify_coalesce-650"><a href="#simplify_coalesce-650"><span class="linenos">650</span></a> <span class="nb">type</span><span class="p">(</span><span class="n">expression</span><span class="p">)(</span><span class="n">this</span><span class="o">=</span><span class="n">arg</span><span class="o">.</span><span class="n">copy</span><span class="p">(),</span> <span class="n">expression</span><span class="o">=</span><span class="n">other</span><span class="o">.</span><span class="n">copy</span><span class="p">()),</span> -</span><span id="simplify_coalesce-651"><a href="#simplify_coalesce-651"><span class="linenos">651</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> -</span><span id="simplify_coalesce-652"><a href="#simplify_coalesce-652"><span class="linenos">652</span></a> <span class="p">),</span> -</span><span id="simplify_coalesce-653"><a href="#simplify_coalesce-653"><span class="linenos">653</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> -</span><span id="simplify_coalesce-654"><a href="#simplify_coalesce-654"><span class="linenos">654</span></a> <span class="p">)</span> -</span><span id="simplify_coalesce-655"><a href="#simplify_coalesce-655"><span class="linenos">655</span></a> <span class="p">)</span> +</span><span id="simplify_coalesce-640"><a href="#simplify_coalesce-640"><span class="linenos">640</span></a> <span class="c1"># Remove the COALESCE function. This is an optimization, skipping a simplify iteration,</span> +</span><span id="simplify_coalesce-641"><a href="#simplify_coalesce-641"><span class="linenos">641</span></a> <span class="c1"># since we already remove COALESCE at the top of this function.</span> +</span><span id="simplify_coalesce-642"><a href="#simplify_coalesce-642"><span class="linenos">642</span></a> <span class="n">coalesce</span> <span class="o">=</span> <span class="n">coalesce</span> <span class="k">if</span> <span class="n">coalesce</span><span class="o">.</span><span class="n">expressions</span> <span class="k">else</span> <span class="n">coalesce</span><span class="o">.</span><span class="n">this</span> +</span><span id="simplify_coalesce-643"><a href="#simplify_coalesce-643"><span class="linenos">643</span></a> +</span><span id="simplify_coalesce-644"><a href="#simplify_coalesce-644"><span class="linenos">644</span></a> <span class="c1"># This expression is more complex than when we started, but it will get simplified further</span> +</span><span id="simplify_coalesce-645"><a href="#simplify_coalesce-645"><span class="linenos">645</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">paren</span><span class="p">(</span> +</span><span id="simplify_coalesce-646"><a href="#simplify_coalesce-646"><span class="linenos">646</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">or_</span><span class="p">(</span> +</span><span id="simplify_coalesce-647"><a href="#simplify_coalesce-647"><span class="linenos">647</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">and_</span><span class="p">(</span> +</span><span id="simplify_coalesce-648"><a href="#simplify_coalesce-648"><span class="linenos">648</span></a> <span class="n">coalesce</span><span class="o">.</span><span class="n">is_</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">())</span><span class="o">.</span><span class="n">not_</span><span class="p">(</span><span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">),</span> +</span><span id="simplify_coalesce-649"><a href="#simplify_coalesce-649"><span class="linenos">649</span></a> <span class="n">expression</span><span class="o">.</span><span class="n">copy</span><span class="p">(),</span> +</span><span id="simplify_coalesce-650"><a href="#simplify_coalesce-650"><span class="linenos">650</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> +</span><span id="simplify_coalesce-651"><a href="#simplify_coalesce-651"><span class="linenos">651</span></a> <span class="p">),</span> +</span><span id="simplify_coalesce-652"><a href="#simplify_coalesce-652"><span class="linenos">652</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">and_</span><span class="p">(</span> +</span><span id="simplify_coalesce-653"><a href="#simplify_coalesce-653"><span class="linenos">653</span></a> <span class="n">coalesce</span><span class="o">.</span><span class="n">is_</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()),</span> +</span><span id="simplify_coalesce-654"><a href="#simplify_coalesce-654"><span class="linenos">654</span></a> <span class="nb">type</span><span class="p">(</span><span class="n">expression</span><span class="p">)(</span><span class="n">this</span><span class="o">=</span><span class="n">arg</span><span class="o">.</span><span class="n">copy</span><span class="p">(),</span> <span class="n">expression</span><span class="o">=</span><span class="n">other</span><span class="o">.</span><span class="n">copy</span><span class="p">()),</span> +</span><span id="simplify_coalesce-655"><a href="#simplify_coalesce-655"><span class="linenos">655</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> +</span><span id="simplify_coalesce-656"><a href="#simplify_coalesce-656"><span class="linenos">656</span></a> <span class="p">),</span> +</span><span id="simplify_coalesce-657"><a href="#simplify_coalesce-657"><span class="linenos">657</span></a> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> +</span><span id="simplify_coalesce-658"><a href="#simplify_coalesce-658"><span class="linenos">658</span></a> <span class="p">)</span> +</span><span id="simplify_coalesce-659"><a href="#simplify_coalesce-659"><span class="linenos">659</span></a> <span class="p">)</span> </span></pre></div> @@ -2121,40 +2165,40 @@ a b </div> <a class="headerlink" href="#simplify_concat"></a> - <div class="pdoc-code codehilite"><pre><span></span><span id="simplify_concat-662"><a href="#simplify_concat-662"><span class="linenos">662</span></a><span class="k">def</span> <span class="nf">simplify_concat</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span> -</span><span id="simplify_concat-663"><a href="#simplify_concat-663"><span class="linenos">663</span></a><span class="w"> </span><span class="sd">"""Reduces all groups that contain string literals by concatenating them."""</span> -</span><span id="simplify_concat-664"><a href="#simplify_concat-664"><span class="linenos">664</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">CONCATS</span><span class="p">)</span> <span class="ow">or</span> <span class="p">(</span> -</span><span id="simplify_concat-665"><a href="#simplify_concat-665"><span class="linenos">665</span></a> <span class="c1"># We can't reduce a CONCAT_WS call if we don't statically know the separator</span> -</span><span id="simplify_concat-666"><a href="#simplify_concat-666"><span class="linenos">666</span></a> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">ConcatWs</span><span class="p">)</span> -</span><span id="simplify_concat-667"><a href="#simplify_concat-667"><span class="linenos">667</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">expressions</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">is_string</span> -</span><span id="simplify_concat-668"><a href="#simplify_concat-668"><span class="linenos">668</span></a> <span class="p">):</span> -</span><span id="simplify_concat-669"><a href="#simplify_concat-669"><span class="linenos">669</span></a> <span class="k">return</span> <span class="n">expression</span> -</span><span id="simplify_concat-670"><a href="#simplify_concat-670"><span class="linenos">670</span></a> -</span><span id="simplify_concat-671"><a href="#simplify_concat-671"><span class="linenos">671</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">ConcatWs</span><span class="p">):</span> -</span><span id="simplify_concat-672"><a href="#simplify_concat-672"><span class="linenos">672</span></a> <span class="n">sep_expr</span><span class="p">,</span> <span class="o">*</span><span class="n">expressions</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">expressions</span> -</span><span id="simplify_concat-673"><a href="#simplify_concat-673"><span class="linenos">673</span></a> <span class="n">sep</span> <span class="o">=</span> <span class="n">sep_expr</span><span class="o">.</span><span class="n">name</span> -</span><span id="simplify_concat-674"><a href="#simplify_concat-674"><span class="linenos">674</span></a> <span class="n">concat_type</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">ConcatWs</span> -</span><span id="simplify_concat-675"><a href="#simplify_concat-675"><span class="linenos">675</span></a> <span class="k">else</span><span class="p">:</span> -</span><span id="simplify_concat-676"><a href="#simplify_concat-676"><span class="linenos">676</span></a> <span class="n">expressions</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">expressions</span> -</span><span id="simplify_concat-677"><a href="#simplify_concat-677"><span class="linenos">677</span></a> <span class="n">sep</span> <span class="o">=</span> <span class="s2">""</span> -</span><span id="simplify_concat-678"><a href="#simplify_concat-678"><span class="linenos">678</span></a> <span class="n">concat_type</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">SafeConcat</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">SAFE_CONCATS</span><span class="p">)</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">Concat</span> -</span><span id="simplify_concat-679"><a href="#simplify_concat-679"><span class="linenos">679</span></a> -</span><span id="simplify_concat-680"><a href="#simplify_concat-680"><span class="linenos">680</span></a> <span class="n">new_args</span> <span class="o">=</span> <span class="p">[]</span> -</span><span id="simplify_concat-681"><a href="#simplify_concat-681"><span class="linenos">681</span></a> <span class="k">for</span> <span class="n">is_string_group</span><span class="p">,</span> <span class="n">group</span> <span class="ow">in</span> <span class="n">itertools</span><span class="o">.</span><span class="n">groupby</span><span class="p">(</span> -</span><span id="simplify_concat-682"><a href="#simplify_concat-682"><span class="linenos">682</span></a> <span class="n">expressions</span> <span class="ow">or</span> <span class="n">expression</span><span class="o">.</span><span class="n">flatten</span><span class="p">(),</span> <span class="k">lambda</span> <span class="n">e</span><span class="p">:</span> <span class="n">e</span><span class="o">.</span><span class="n">is_string</span> -</span><span id="simplify_concat-683"><a href="#simplify_concat-683"><span class="linenos">683</span></a> <span class="p">):</span> -</span><span id="simplify_concat-684"><a href="#simplify_concat-684"><span class="linenos">684</span></a> <span class="k">if</span> <span class="n">is_string_group</span><span class="p">:</span> -</span><span id="simplify_concat-685"><a href="#simplify_concat-685"><span class="linenos">685</span></a> <span class="n">new_args</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="o">.</span><span class="n">string</span><span class="p">(</span><span class="n">sep</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">string</span><span class="o">.</span><span class="n">name</span> <span class="k">for</span> <span class="n">string</span> <span class="ow">in</span> <span class="n">group</span><span class="p">)))</span> -</span><span id="simplify_concat-686"><a href="#simplify_concat-686"><span class="linenos">686</span></a> <span class="k">else</span><span class="p">:</span> -</span><span id="simplify_concat-687"><a href="#simplify_concat-687"><span class="linenos">687</span></a> <span class="n">new_args</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span><span class="n">group</span><span class="p">)</span> -</span><span id="simplify_concat-688"><a href="#simplify_concat-688"><span class="linenos">688</span></a> -</span><span id="simplify_concat-689"><a href="#simplify_concat-689"><span class="linenos">689</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">new_args</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span> <span class="ow">and</span> <span class="n">new_args</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">is_string</span><span class="p">:</span> -</span><span id="simplify_concat-690"><a href="#simplify_concat-690"><span class="linenos">690</span></a> <span class="k">return</span> <span class="n">new_args</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> -</span><span id="simplify_concat-691"><a href="#simplify_concat-691"><span class="linenos">691</span></a> -</span><span id="simplify_concat-692"><a href="#simplify_concat-692"><span class="linenos">692</span></a> <span class="k">if</span> <span class="n">concat_type</span> <span class="ow">is</span> <span class="n">exp</span><span class="o">.</span><span class="n">ConcatWs</span><span class="p">:</span> -</span><span id="simplify_concat-693"><a href="#simplify_concat-693"><span class="linenos">693</span></a> <span class="n">new_args</span> <span class="o">=</span> <span class="p">[</span><span class="n">sep_expr</span><span class="p">]</span> <span class="o">+</span> <span class="n">new_args</span> -</span><span id="simplify_concat-694"><a href="#simplify_concat-694"><span class="linenos">694</span></a> -</span><span id="simplify_concat-695"><a href="#simplify_concat-695"><span class="linenos">695</span></a> <span class="k">return</span> <span class="n">concat_type</span><span class="p">(</span><span class="n">expressions</span><span class="o">=</span><span class="n">new_args</span><span class="p">)</span> + <div class="pdoc-code codehilite"><pre><span></span><span id="simplify_concat-666"><a href="#simplify_concat-666"><span class="linenos">666</span></a><span class="k">def</span> <span class="nf">simplify_concat</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span> +</span><span id="simplify_concat-667"><a href="#simplify_concat-667"><span class="linenos">667</span></a><span class="w"> </span><span class="sd">"""Reduces all groups that contain string literals by concatenating them."""</span> +</span><span id="simplify_concat-668"><a href="#simplify_concat-668"><span class="linenos">668</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">CONCATS</span><span class="p">)</span> <span class="ow">or</span> <span class="p">(</span> +</span><span id="simplify_concat-669"><a href="#simplify_concat-669"><span class="linenos">669</span></a> <span class="c1"># We can't reduce a CONCAT_WS call if we don't statically know the separator</span> +</span><span id="simplify_concat-670"><a href="#simplify_concat-670"><span class="linenos">670</span></a> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">ConcatWs</span><span class="p">)</span> +</span><span id="simplify_concat-671"><a href="#simplify_concat-671"><span class="linenos">671</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">expressions</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">is_string</span> +</span><span id="simplify_concat-672"><a href="#simplify_concat-672"><span class="linenos">672</span></a> <span class="p">):</span> +</span><span id="simplify_concat-673"><a href="#simplify_concat-673"><span class="linenos">673</span></a> <span class="k">return</span> <span class="n">expression</span> +</span><span id="simplify_concat-674"><a href="#simplify_concat-674"><span class="linenos">674</span></a> +</span><span id="simplify_concat-675"><a href="#simplify_concat-675"><span class="linenos">675</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">ConcatWs</span><span class="p">):</span> +</span><span id="simplify_concat-676"><a href="#simplify_concat-676"><span class="linenos">676</span></a> <span class="n">sep_expr</span><span class="p">,</span> <span class="o">*</span><span class="n">expressions</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">expressions</span> +</span><span id="simplify_concat-677"><a href="#simplify_concat-677"><span class="linenos">677</span></a> <span class="n">sep</span> <span class="o">=</span> <span class="n">sep_expr</span><span class="o">.</span><span class="n">name</span> +</span><span id="simplify_concat-678"><a href="#simplify_concat-678"><span class="linenos">678</span></a> <span class="n">concat_type</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">ConcatWs</span> +</span><span id="simplify_concat-679"><a href="#simplify_concat-679"><span class="linenos">679</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="simplify_concat-680"><a href="#simplify_concat-680"><span class="linenos">680</span></a> <span class="n">expressions</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">expressions</span> +</span><span id="simplify_concat-681"><a href="#simplify_concat-681"><span class="linenos">681</span></a> <span class="n">sep</span> <span class="o">=</span> <span class="s2">""</span> +</span><span id="simplify_concat-682"><a href="#simplify_concat-682"><span class="linenos">682</span></a> <span class="n">concat_type</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">SafeConcat</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">SAFE_CONCATS</span><span class="p">)</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">Concat</span> +</span><span id="simplify_concat-683"><a href="#simplify_concat-683"><span class="linenos">683</span></a> +</span><span id="simplify_concat-684"><a href="#simplify_concat-684"><span class="linenos">684</span></a> <span class="n">new_args</span> <span class="o">=</span> <span class="p">[]</span> +</span><span id="simplify_concat-685"><a href="#simplify_concat-685"><span class="linenos">685</span></a> <span class="k">for</span> <span class="n">is_string_group</span><span class="p">,</span> <span class="n">group</span> <span class="ow">in</span> <span class="n">itertools</span><span class="o">.</span><span class="n">groupby</span><span class="p">(</span> +</span><span id="simplify_concat-686"><a href="#simplify_concat-686"><span class="linenos">686</span></a> <span class="n">expressions</span> <span class="ow">or</span> <span class="n">expression</span><span class="o">.</span><span class="n">flatten</span><span class="p">(),</span> <span class="k">lambda</span> <span class="n">e</span><span class="p">:</span> <span class="n">e</span><span class="o">.</span><span class="n">is_string</span> +</span><span id="simplify_concat-687"><a href="#simplify_concat-687"><span class="linenos">687</span></a> <span class="p">):</span> +</span><span id="simplify_concat-688"><a href="#simplify_concat-688"><span class="linenos">688</span></a> <span class="k">if</span> <span class="n">is_string_group</span><span class="p">:</span> +</span><span id="simplify_concat-689"><a href="#simplify_concat-689"><span class="linenos">689</span></a> <span class="n">new_args</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="o">.</span><span class="n">string</span><span class="p">(</span><span class="n">sep</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">string</span><span class="o">.</span><span class="n">name</span> <span class="k">for</span> <span class="n">string</span> <span class="ow">in</span> <span class="n">group</span><span class="p">)))</span> +</span><span id="simplify_concat-690"><a href="#simplify_concat-690"><span class="linenos">690</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="simplify_concat-691"><a href="#simplify_concat-691"><span class="linenos">691</span></a> <span class="n">new_args</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span><span class="n">group</span><span class="p">)</span> +</span><span id="simplify_concat-692"><a href="#simplify_concat-692"><span class="linenos">692</span></a> +</span><span id="simplify_concat-693"><a href="#simplify_concat-693"><span class="linenos">693</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">new_args</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span> <span class="ow">and</span> <span class="n">new_args</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">is_string</span><span class="p">:</span> +</span><span id="simplify_concat-694"><a href="#simplify_concat-694"><span class="linenos">694</span></a> <span class="k">return</span> <span class="n">new_args</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> +</span><span id="simplify_concat-695"><a href="#simplify_concat-695"><span class="linenos">695</span></a> +</span><span id="simplify_concat-696"><a href="#simplify_concat-696"><span class="linenos">696</span></a> <span class="k">if</span> <span class="n">concat_type</span> <span class="ow">is</span> <span class="n">exp</span><span class="o">.</span><span class="n">ConcatWs</span><span class="p">:</span> +</span><span id="simplify_concat-697"><a href="#simplify_concat-697"><span class="linenos">697</span></a> <span class="n">new_args</span> <span class="o">=</span> <span class="p">[</span><span class="n">sep_expr</span><span class="p">]</span> <span class="o">+</span> <span class="n">new_args</span> +</span><span id="simplify_concat-698"><a href="#simplify_concat-698"><span class="linenos">698</span></a> +</span><span id="simplify_concat-699"><a href="#simplify_concat-699"><span class="linenos">699</span></a> <span class="k">return</span> <span class="n">concat_type</span><span class="p">(</span><span class="n">expressions</span><span class="o">=</span><span class="n">new_args</span><span class="p">)</span> </span></pre></div> @@ -2163,6 +2207,49 @@ a b </section> + <section id="simplify_conditionals"> + <input id="simplify_conditionals-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr function"> + + <span class="def">def</span> + <span class="name">simplify_conditionals</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">expression</span></span><span class="return-annotation">):</span></span> + + <label class="view-source-button" for="simplify_conditionals-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#simplify_conditionals"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="simplify_conditionals-702"><a href="#simplify_conditionals-702"><span class="linenos">702</span></a><span class="k">def</span> <span class="nf">simplify_conditionals</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span> +</span><span id="simplify_conditionals-703"><a href="#simplify_conditionals-703"><span class="linenos">703</span></a><span class="w"> </span><span class="sd">"""Simplifies expressions like IF, CASE if their condition is statically known."""</span> +</span><span id="simplify_conditionals-704"><a href="#simplify_conditionals-704"><span class="linenos">704</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Case</span><span class="p">):</span> +</span><span id="simplify_conditionals-705"><a href="#simplify_conditionals-705"><span class="linenos">705</span></a> <span class="n">this</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span> +</span><span id="simplify_conditionals-706"><a href="#simplify_conditionals-706"><span class="linenos">706</span></a> <span class="k">for</span> <span class="n">case</span> <span class="ow">in</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">"ifs"</span><span class="p">]:</span> +</span><span id="simplify_conditionals-707"><a href="#simplify_conditionals-707"><span class="linenos">707</span></a> <span class="n">cond</span> <span class="o">=</span> <span class="n">case</span><span class="o">.</span><span class="n">this</span> +</span><span id="simplify_conditionals-708"><a href="#simplify_conditionals-708"><span class="linenos">708</span></a> <span class="k">if</span> <span class="n">this</span><span class="p">:</span> +</span><span id="simplify_conditionals-709"><a href="#simplify_conditionals-709"><span class="linenos">709</span></a> <span class="c1"># Convert CASE x WHEN matching_value ... to CASE WHEN x = matching_value ...</span> +</span><span id="simplify_conditionals-710"><a href="#simplify_conditionals-710"><span class="linenos">710</span></a> <span class="n">cond</span> <span class="o">=</span> <span class="n">cond</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">this</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span><span class="o">.</span><span class="n">eq</span><span class="p">(</span><span class="n">cond</span><span class="p">))</span> +</span><span id="simplify_conditionals-711"><a href="#simplify_conditionals-711"><span class="linenos">711</span></a> +</span><span id="simplify_conditionals-712"><a href="#simplify_conditionals-712"><span class="linenos">712</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">cond</span><span class="p">):</span> +</span><span id="simplify_conditionals-713"><a href="#simplify_conditionals-713"><span class="linenos">713</span></a> <span class="k">return</span> <span class="n">case</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">"true"</span><span class="p">]</span> +</span><span id="simplify_conditionals-714"><a href="#simplify_conditionals-714"><span class="linenos">714</span></a> +</span><span id="simplify_conditionals-715"><a href="#simplify_conditionals-715"><span class="linenos">715</span></a> <span class="k">if</span> <span class="n">always_false</span><span class="p">(</span><span class="n">cond</span><span class="p">):</span> +</span><span id="simplify_conditionals-716"><a href="#simplify_conditionals-716"><span class="linenos">716</span></a> <span class="k">case</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span> +</span><span id="simplify_conditionals-717"><a href="#simplify_conditionals-717"><span class="linenos">717</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">"ifs"</span><span class="p">]:</span> +</span><span id="simplify_conditionals-718"><a href="#simplify_conditionals-718"><span class="linenos">718</span></a> <span class="k">return</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"default"</span><span class="p">)</span> <span class="ow">or</span> <span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()</span> +</span><span id="simplify_conditionals-719"><a href="#simplify_conditionals-719"><span class="linenos">719</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">If</span><span class="p">)</span> <span class="ow">and</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">parent</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Case</span><span class="p">):</span> +</span><span id="simplify_conditionals-720"><a href="#simplify_conditionals-720"><span class="linenos">720</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">):</span> +</span><span id="simplify_conditionals-721"><a href="#simplify_conditionals-721"><span class="linenos">721</span></a> <span class="k">return</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">"true"</span><span class="p">]</span> +</span><span id="simplify_conditionals-722"><a href="#simplify_conditionals-722"><span class="linenos">722</span></a> <span class="k">if</span> <span class="n">always_false</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">):</span> +</span><span id="simplify_conditionals-723"><a href="#simplify_conditionals-723"><span class="linenos">723</span></a> <span class="k">return</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"false"</span><span class="p">)</span> <span class="ow">or</span> <span class="n">exp</span><span class="o">.</span><span class="n">null</span><span class="p">()</span> +</span><span id="simplify_conditionals-724"><a href="#simplify_conditionals-724"><span class="linenos">724</span></a> +</span><span id="simplify_conditionals-725"><a href="#simplify_conditionals-725"><span class="linenos">725</span></a> <span class="k">return</span> <span class="n">expression</span> +</span></pre></div> + + + <div class="docstring"><p>Simplifies expressions like IF, CASE if their condition is statically known.</p> +</div> + + + </section> <section id="DateRange"> <div class="attr variable"> <span class="name">DateRange</span> = @@ -2205,7 +2292,7 @@ a b <div class="attr variable"> <span class="name">DATETRUNC_COMPARISONS</span> = <input id="DATETRUNC_COMPARISONS-view-value" class="view-value-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> - <label class="view-value-button pdoc-button" for="DATETRUNC_COMPARISONS-view-value"></label><span class="default_value">{<class '<a href="../expressions.html#NEQ">sqlglot.expressions.NEQ</a>'>, <class '<a href="../expressions.html#EQ">sqlglot.expressions.EQ</a>'>, <class '<a href="../expressions.html#GTE">sqlglot.expressions.GTE</a>'>, <class '<a href="../expressions.html#GT">sqlglot.expressions.GT</a>'>, <class '<a href="../expressions.html#LTE">sqlglot.expressions.LTE</a>'>, <class '<a href="../expressions.html#In">sqlglot.expressions.In</a>'>, <class '<a href="../expressions.html#LT">sqlglot.expressions.LT</a>'>}</span> + <label class="view-value-button pdoc-button" for="DATETRUNC_COMPARISONS-view-value"></label><span class="default_value">{<class '<a href="../expressions.html#LTE">sqlglot.expressions.LTE</a>'>, <class '<a href="../expressions.html#GTE">sqlglot.expressions.GTE</a>'>, <class '<a href="../expressions.html#GT">sqlglot.expressions.GT</a>'>, <class '<a href="../expressions.html#In">sqlglot.expressions.In</a>'>, <class '<a href="../expressions.html#NEQ">sqlglot.expressions.NEQ</a>'>, <class '<a href="../expressions.html#LT">sqlglot.expressions.LT</a>'>, <class '<a href="../expressions.html#EQ">sqlglot.expressions.EQ</a>'>}</span> </div> @@ -2225,11 +2312,11 @@ a b </div> <a class="headerlink" href="#simplify_datetrunc_predicate"></a> - <div class="pdoc-code codehilite"><pre><span></span><span id="simplify_datetrunc_predicate-106"><a href="#simplify_datetrunc_predicate-106"><span class="linenos">106</span></a> <span class="k">def</span> <span class="nf">wrapped</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span> -</span><span id="simplify_datetrunc_predicate-107"><a href="#simplify_datetrunc_predicate-107"><span class="linenos">107</span></a> <span class="k">try</span><span class="p">:</span> -</span><span id="simplify_datetrunc_predicate-108"><a href="#simplify_datetrunc_predicate-108"><span class="linenos">108</span></a> <span class="k">return</span> <span class="n">func</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span> -</span><span id="simplify_datetrunc_predicate-109"><a href="#simplify_datetrunc_predicate-109"><span class="linenos">109</span></a> <span class="k">except</span> <span class="n">exceptions</span><span class="p">:</span> -</span><span id="simplify_datetrunc_predicate-110"><a href="#simplify_datetrunc_predicate-110"><span class="linenos">110</span></a> <span class="k">return</span> <span class="n">expression</span> + <div class="pdoc-code codehilite"><pre><span></span><span id="simplify_datetrunc_predicate-107"><a href="#simplify_datetrunc_predicate-107"><span class="linenos">107</span></a> <span class="k">def</span> <span class="nf">wrapped</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span> +</span><span id="simplify_datetrunc_predicate-108"><a href="#simplify_datetrunc_predicate-108"><span class="linenos">108</span></a> <span class="k">try</span><span class="p">:</span> +</span><span id="simplify_datetrunc_predicate-109"><a href="#simplify_datetrunc_predicate-109"><span class="linenos">109</span></a> <span class="k">return</span> <span class="n">func</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span> +</span><span id="simplify_datetrunc_predicate-110"><a href="#simplify_datetrunc_predicate-110"><span class="linenos">110</span></a> <span class="k">except</span> <span class="n">exceptions</span><span class="p">:</span> +</span><span id="simplify_datetrunc_predicate-111"><a href="#simplify_datetrunc_predicate-111"><span class="linenos">111</span></a> <span class="k">return</span> <span class="n">expression</span> </span></pre></div> @@ -2241,7 +2328,7 @@ a b <section id="JOINS"> <div class="attr variable"> <span class="name">JOINS</span> = -<span class="default_value">{('', ''), ('', 'INNER'), ('RIGHT', ''), ('RIGHT', 'OUTER')}</span> +<span class="default_value">{('RIGHT', ''), ('RIGHT', 'OUTER'), ('', 'INNER'), ('', '')}</span> </div> @@ -2261,20 +2348,20 @@ a b </div> <a class="headerlink" href="#remove_where_true"></a> - <div class="pdoc-code codehilite"><pre><span></span><span id="remove_where_true-833"><a href="#remove_where_true-833"><span class="linenos">833</span></a><span class="k">def</span> <span class="nf">remove_where_true</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span> -</span><span id="remove_where_true-834"><a href="#remove_where_true-834"><span class="linenos">834</span></a> <span class="k">for</span> <span class="n">where</span> <span class="ow">in</span> <span class="n">expression</span><span class="o">.</span><span class="n">find_all</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Where</span><span class="p">):</span> -</span><span id="remove_where_true-835"><a href="#remove_where_true-835"><span class="linenos">835</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">where</span><span class="o">.</span><span class="n">this</span><span class="p">):</span> -</span><span id="remove_where_true-836"><a href="#remove_where_true-836"><span class="linenos">836</span></a> <span class="n">where</span><span class="o">.</span><span class="n">parent</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"where"</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span> -</span><span id="remove_where_true-837"><a href="#remove_where_true-837"><span class="linenos">837</span></a> <span class="k">for</span> <span class="n">join</span> <span class="ow">in</span> <span class="n">expression</span><span class="o">.</span><span class="n">find_all</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Join</span><span class="p">):</span> -</span><span id="remove_where_true-838"><a href="#remove_where_true-838"><span class="linenos">838</span></a> <span class="k">if</span> <span class="p">(</span> -</span><span id="remove_where_true-839"><a href="#remove_where_true-839"><span class="linenos">839</span></a> <span class="n">always_true</span><span class="p">(</span><span class="n">join</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"on"</span><span class="p">))</span> -</span><span id="remove_where_true-840"><a href="#remove_where_true-840"><span class="linenos">840</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="n">join</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"using"</span><span class="p">)</span> -</span><span id="remove_where_true-841"><a href="#remove_where_true-841"><span class="linenos">841</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="n">join</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"method"</span><span class="p">)</span> -</span><span id="remove_where_true-842"><a href="#remove_where_true-842"><span class="linenos">842</span></a> <span class="ow">and</span> <span class="p">(</span><span class="n">join</span><span class="o">.</span><span class="n">side</span><span class="p">,</span> <span class="n">join</span><span class="o">.</span><span class="n">kind</span><span class="p">)</span> <span class="ow">in</span> <span class="n">JOINS</span> -</span><span id="remove_where_true-843"><a href="#remove_where_true-843"><span class="linenos">843</span></a> <span class="p">):</span> -</span><span id="remove_where_true-844"><a href="#remove_where_true-844"><span class="linenos">844</span></a> <span class="n">join</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"on"</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span> -</span><span id="remove_where_true-845"><a href="#remove_where_true-845"><span class="linenos">845</span></a> <span class="n">join</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"side"</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span> -</span><span id="remove_where_true-846"><a href="#remove_where_true-846"><span class="linenos">846</span></a> <span class="n">join</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"kind"</span><span class="p">,</span> <span class="s2">"CROSS"</span><span class="p">)</span> + <div class="pdoc-code codehilite"><pre><span></span><span id="remove_where_true-865"><a href="#remove_where_true-865"><span class="linenos">865</span></a><span class="k">def</span> <span class="nf">remove_where_true</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span> +</span><span id="remove_where_true-866"><a href="#remove_where_true-866"><span class="linenos">866</span></a> <span class="k">for</span> <span class="n">where</span> <span class="ow">in</span> <span class="n">expression</span><span class="o">.</span><span class="n">find_all</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Where</span><span class="p">):</span> +</span><span id="remove_where_true-867"><a href="#remove_where_true-867"><span class="linenos">867</span></a> <span class="k">if</span> <span class="n">always_true</span><span class="p">(</span><span class="n">where</span><span class="o">.</span><span class="n">this</span><span class="p">):</span> +</span><span id="remove_where_true-868"><a href="#remove_where_true-868"><span class="linenos">868</span></a> <span class="n">where</span><span class="o">.</span><span class="n">parent</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"where"</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span> +</span><span id="remove_where_true-869"><a href="#remove_where_true-869"><span class="linenos">869</span></a> <span class="k">for</span> <span class="n">join</span> <span class="ow">in</span> <span class="n">expression</span><span class="o">.</span><span class="n">find_all</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Join</span><span class="p">):</span> +</span><span id="remove_where_true-870"><a href="#remove_where_true-870"><span class="linenos">870</span></a> <span class="k">if</span> <span class="p">(</span> +</span><span id="remove_where_true-871"><a href="#remove_where_true-871"><span class="linenos">871</span></a> <span class="n">always_true</span><span class="p">(</span><span class="n">join</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"on"</span><span class="p">))</span> +</span><span id="remove_where_true-872"><a href="#remove_where_true-872"><span class="linenos">872</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="n">join</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"using"</span><span class="p">)</span> +</span><span id="remove_where_true-873"><a href="#remove_where_true-873"><span class="linenos">873</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="n">join</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"method"</span><span class="p">)</span> +</span><span id="remove_where_true-874"><a href="#remove_where_true-874"><span class="linenos">874</span></a> <span class="ow">and</span> <span class="p">(</span><span class="n">join</span><span class="o">.</span><span class="n">side</span><span class="p">,</span> <span class="n">join</span><span class="o">.</span><span class="n">kind</span><span class="p">)</span> <span class="ow">in</span> <span class="n">JOINS</span> +</span><span id="remove_where_true-875"><a href="#remove_where_true-875"><span class="linenos">875</span></a> <span class="p">):</span> +</span><span id="remove_where_true-876"><a href="#remove_where_true-876"><span class="linenos">876</span></a> <span class="n">join</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"on"</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span> +</span><span id="remove_where_true-877"><a href="#remove_where_true-877"><span class="linenos">877</span></a> <span class="n">join</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"side"</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span> +</span><span id="remove_where_true-878"><a href="#remove_where_true-878"><span class="linenos">878</span></a> <span class="n">join</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"kind"</span><span class="p">,</span> <span class="s2">"CROSS"</span><span class="p">)</span> </span></pre></div> @@ -2292,10 +2379,29 @@ a b </div> <a class="headerlink" href="#always_true"></a> - <div class="pdoc-code codehilite"><pre><span></span><span id="always_true-849"><a href="#always_true-849"><span class="linenos">849</span></a><span class="k">def</span> <span class="nf">always_true</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span> -</span><span id="always_true-850"><a href="#always_true-850"><span class="linenos">850</span></a> <span class="k">return</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Boolean</span><span class="p">)</span> <span class="ow">and</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">)</span> <span class="ow">or</span> <span class="nb">isinstance</span><span class="p">(</span> -</span><span id="always_true-851"><a href="#always_true-851"><span class="linenos">851</span></a> <span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span> -</span><span id="always_true-852"><a href="#always_true-852"><span class="linenos">852</span></a> <span class="p">)</span> + <div class="pdoc-code codehilite"><pre><span></span><span id="always_true-881"><a href="#always_true-881"><span class="linenos">881</span></a><span class="k">def</span> <span class="nf">always_true</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span> +</span><span id="always_true-882"><a href="#always_true-882"><span class="linenos">882</span></a> <span class="k">return</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Boolean</span><span class="p">)</span> <span class="ow">and</span> <span class="n">expression</span><span class="o">.</span><span class="n">this</span><span class="p">)</span> <span class="ow">or</span> <span class="nb">isinstance</span><span class="p">(</span> +</span><span id="always_true-883"><a href="#always_true-883"><span class="linenos">883</span></a> <span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span> +</span><span id="always_true-884"><a href="#always_true-884"><span class="linenos">884</span></a> <span class="p">)</span> +</span></pre></div> + + + + + </section> + <section id="always_false"> + <input id="always_false-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr function"> + + <span class="def">def</span> + <span class="name">always_false</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">expression</span></span><span class="return-annotation">):</span></span> + + <label class="view-source-button" for="always_false-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#always_false"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="always_false-887"><a href="#always_false-887"><span class="linenos">887</span></a><span class="k">def</span> <span class="nf">always_false</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span> +</span><span id="always_false-888"><a href="#always_false-888"><span class="linenos">888</span></a> <span class="k">return</span> <span class="n">is_false</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span> <span class="ow">or</span> <span class="n">is_null</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span> </span></pre></div> @@ -2313,8 +2419,8 @@ a b </div> <a class="headerlink" href="#is_complement"></a> - <div class="pdoc-code codehilite"><pre><span></span><span id="is_complement-855"><a href="#is_complement-855"><span class="linenos">855</span></a><span class="k">def</span> <span class="nf">is_complement</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">):</span> -</span><span id="is_complement-856"><a href="#is_complement-856"><span class="linenos">856</span></a> <span class="k">return</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">)</span> <span class="ow">and</span> <span class="n">b</span><span class="o">.</span><span class="n">this</span> <span class="o">==</span> <span class="n">a</span> + <div class="pdoc-code codehilite"><pre><span></span><span id="is_complement-891"><a href="#is_complement-891"><span class="linenos">891</span></a><span class="k">def</span> <span class="nf">is_complement</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">):</span> +</span><span id="is_complement-892"><a href="#is_complement-892"><span class="linenos">892</span></a> <span class="k">return</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">b</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">)</span> <span class="ow">and</span> <span class="n">b</span><span class="o">.</span><span class="n">this</span> <span class="o">==</span> <span class="n">a</span> </span></pre></div> @@ -2332,8 +2438,8 @@ a b </div> <a class="headerlink" href="#is_false"></a> - <div class="pdoc-code codehilite"><pre><span></span><span id="is_false-859"><a href="#is_false-859"><span class="linenos">859</span></a><span class="k">def</span> <span class="nf">is_false</span><span class="p">(</span><span class="n">a</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="nb">bool</span><span class="p">:</span> -</span><span id="is_false-860"><a href="#is_false-860"><span class="linenos">860</span></a> <span class="k">return</span> <span class="nb">type</span><span class="p">(</span><span class="n">a</span><span class="p">)</span> <span class="ow">is</span> <span class="n">exp</span><span class="o">.</span><span class="n">Boolean</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">a</span><span class="o">.</span><span class="n">this</span> + <div class="pdoc-code codehilite"><pre><span></span><span id="is_false-895"><a href="#is_false-895"><span class="linenos">895</span></a><span class="k">def</span> <span class="nf">is_false</span><span class="p">(</span><span class="n">a</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="nb">bool</span><span class="p">:</span> +</span><span id="is_false-896"><a href="#is_false-896"><span class="linenos">896</span></a> <span class="k">return</span> <span class="nb">type</span><span class="p">(</span><span class="n">a</span><span class="p">)</span> <span class="ow">is</span> <span class="n">exp</span><span class="o">.</span><span class="n">Boolean</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">a</span><span class="o">.</span><span class="n">this</span> </span></pre></div> @@ -2351,8 +2457,8 @@ a b </div> <a class="headerlink" href="#is_null"></a> - <div class="pdoc-code codehilite"><pre><span></span><span id="is_null-863"><a href="#is_null-863"><span class="linenos">863</span></a><span class="k">def</span> <span class="nf">is_null</span><span class="p">(</span><span class="n">a</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="nb">bool</span><span class="p">:</span> -</span><span id="is_null-864"><a href="#is_null-864"><span class="linenos">864</span></a> <span class="k">return</span> <span class="nb">type</span><span class="p">(</span><span class="n">a</span><span class="p">)</span> <span class="ow">is</span> <span class="n">exp</span><span class="o">.</span><span class="n">Null</span> + <div class="pdoc-code codehilite"><pre><span></span><span id="is_null-899"><a href="#is_null-899"><span class="linenos">899</span></a><span class="k">def</span> <span class="nf">is_null</span><span class="p">(</span><span class="n">a</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="nb">bool</span><span class="p">:</span> +</span><span id="is_null-900"><a href="#is_null-900"><span class="linenos">900</span></a> <span class="k">return</span> <span class="nb">type</span><span class="p">(</span><span class="n">a</span><span class="p">)</span> <span class="ow">is</span> <span class="n">exp</span><span class="o">.</span><span class="n">Null</span> </span></pre></div> @@ -2370,20 +2476,20 @@ a b </div> <a class="headerlink" href="#eval_boolean"></a> - <div class="pdoc-code codehilite"><pre><span></span><span id="eval_boolean-867"><a href="#eval_boolean-867"><span class="linenos">867</span></a><span class="k">def</span> <span class="nf">eval_boolean</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">):</span> -</span><span id="eval_boolean-868"><a href="#eval_boolean-868"><span class="linenos">868</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">EQ</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Is</span><span class="p">)):</span> -</span><span id="eval_boolean-869"><a href="#eval_boolean-869"><span class="linenos">869</span></a> <span class="k">return</span> <span class="n">boolean_literal</span><span class="p">(</span><span class="n">a</span> <span class="o">==</span> <span class="n">b</span><span class="p">)</span> -</span><span id="eval_boolean-870"><a href="#eval_boolean-870"><span class="linenos">870</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">NEQ</span><span class="p">):</span> -</span><span id="eval_boolean-871"><a href="#eval_boolean-871"><span class="linenos">871</span></a> <span class="k">return</span> <span class="n">boolean_literal</span><span class="p">(</span><span class="n">a</span> <span class="o">!=</span> <span class="n">b</span><span class="p">)</span> -</span><span id="eval_boolean-872"><a href="#eval_boolean-872"><span class="linenos">872</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">GT</span><span class="p">):</span> -</span><span id="eval_boolean-873"><a href="#eval_boolean-873"><span class="linenos">873</span></a> <span class="k">return</span> <span class="n">boolean_literal</span><span class="p">(</span><span class="n">a</span> <span class="o">></span> <span class="n">b</span><span class="p">)</span> -</span><span id="eval_boolean-874"><a href="#eval_boolean-874"><span class="linenos">874</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">GTE</span><span class="p">):</span> -</span><span id="eval_boolean-875"><a href="#eval_boolean-875"><span class="linenos">875</span></a> <span class="k">return</span> <span class="n">boolean_literal</span><span class="p">(</span><span class="n">a</span> <span class="o">>=</span> <span class="n">b</span><span class="p">)</span> -</span><span id="eval_boolean-876"><a href="#eval_boolean-876"><span class="linenos">876</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">LT</span><span class="p">):</span> -</span><span id="eval_boolean-877"><a href="#eval_boolean-877"><span class="linenos">877</span></a> <span class="k">return</span> <span class="n">boolean_literal</span><span class="p">(</span><span class="n">a</span> <span class="o"><</span> <span class="n">b</span><span class="p">)</span> -</span><span id="eval_boolean-878"><a href="#eval_boolean-878"><span class="linenos">878</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">LTE</span><span class="p">):</span> -</span><span id="eval_boolean-879"><a href="#eval_boolean-879"><span class="linenos">879</span></a> <span class="k">return</span> <span class="n">boolean_literal</span><span class="p">(</span><span class="n">a</span> <span class="o"><=</span> <span class="n">b</span><span class="p">)</span> -</span><span id="eval_boolean-880"><a href="#eval_boolean-880"><span class="linenos">880</span></a> <span class="k">return</span> <span class="kc">None</span> + <div class="pdoc-code codehilite"><pre><span></span><span id="eval_boolean-903"><a href="#eval_boolean-903"><span class="linenos">903</span></a><span class="k">def</span> <span class="nf">eval_boolean</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">):</span> +</span><span id="eval_boolean-904"><a href="#eval_boolean-904"><span class="linenos">904</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">EQ</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Is</span><span class="p">)):</span> +</span><span id="eval_boolean-905"><a href="#eval_boolean-905"><span class="linenos">905</span></a> <span class="k">return</span> <span class="n">boolean_literal</span><span class="p">(</span><span class="n">a</span> <span class="o">==</span> <span class="n">b</span><span class="p">)</span> +</span><span id="eval_boolean-906"><a href="#eval_boolean-906"><span class="linenos">906</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">NEQ</span><span class="p">):</span> +</span><span id="eval_boolean-907"><a href="#eval_boolean-907"><span class="linenos">907</span></a> <span class="k">return</span> <span class="n">boolean_literal</span><span class="p">(</span><span class="n">a</span> <span class="o">!=</span> <span class="n">b</span><span class="p">)</span> +</span><span id="eval_boolean-908"><a href="#eval_boolean-908"><span class="linenos">908</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">GT</span><span class="p">):</span> +</span><span id="eval_boolean-909"><a href="#eval_boolean-909"><span class="linenos">909</span></a> <span class="k">return</span> <span class="n">boolean_literal</span><span class="p">(</span><span class="n">a</span> <span class="o">></span> <span class="n">b</span><span class="p">)</span> +</span><span id="eval_boolean-910"><a href="#eval_boolean-910"><span class="linenos">910</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">GTE</span><span class="p">):</span> +</span><span id="eval_boolean-911"><a href="#eval_boolean-911"><span class="linenos">911</span></a> <span class="k">return</span> <span class="n">boolean_literal</span><span class="p">(</span><span class="n">a</span> <span class="o">>=</span> <span class="n">b</span><span class="p">)</span> +</span><span id="eval_boolean-912"><a href="#eval_boolean-912"><span class="linenos">912</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">LT</span><span class="p">):</span> +</span><span id="eval_boolean-913"><a href="#eval_boolean-913"><span class="linenos">913</span></a> <span class="k">return</span> <span class="n">boolean_literal</span><span class="p">(</span><span class="n">a</span> <span class="o"><</span> <span class="n">b</span><span class="p">)</span> +</span><span id="eval_boolean-914"><a href="#eval_boolean-914"><span class="linenos">914</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">LTE</span><span class="p">):</span> +</span><span id="eval_boolean-915"><a href="#eval_boolean-915"><span class="linenos">915</span></a> <span class="k">return</span> <span class="n">boolean_literal</span><span class="p">(</span><span class="n">a</span> <span class="o"><=</span> <span class="n">b</span><span class="p">)</span> +</span><span id="eval_boolean-916"><a href="#eval_boolean-916"><span class="linenos">916</span></a> <span class="k">return</span> <span class="kc">None</span> </span></pre></div> @@ -2401,15 +2507,15 @@ a b </div> <a class="headerlink" href="#cast_as_date"></a> - <div class="pdoc-code codehilite"><pre><span></span><span id="cast_as_date-883"><a href="#cast_as_date-883"><span class="linenos">883</span></a><span class="k">def</span> <span class="nf">cast_as_date</span><span class="p">(</span><span class="n">value</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Any</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">]:</span> -</span><span id="cast_as_date-884"><a href="#cast_as_date-884"><span class="linenos">884</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="p">):</span> -</span><span id="cast_as_date-885"><a href="#cast_as_date-885"><span class="linenos">885</span></a> <span class="k">return</span> <span class="n">value</span><span class="o">.</span><span class="n">date</span><span class="p">()</span> -</span><span id="cast_as_date-886"><a href="#cast_as_date-886"><span class="linenos">886</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">):</span> -</span><span id="cast_as_date-887"><a href="#cast_as_date-887"><span class="linenos">887</span></a> <span class="k">return</span> <span class="n">value</span> -</span><span id="cast_as_date-888"><a href="#cast_as_date-888"><span class="linenos">888</span></a> <span class="k">try</span><span class="p">:</span> -</span><span id="cast_as_date-889"><a href="#cast_as_date-889"><span class="linenos">889</span></a> <span class="k">return</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="o">.</span><span class="n">fromisoformat</span><span class="p">(</span><span class="n">value</span><span class="p">)</span><span class="o">.</span><span class="n">date</span><span class="p">()</span> -</span><span id="cast_as_date-890"><a href="#cast_as_date-890"><span class="linenos">890</span></a> <span class="k">except</span> <span class="ne">ValueError</span><span class="p">:</span> -</span><span id="cast_as_date-891"><a href="#cast_as_date-891"><span class="linenos">891</span></a> <span class="k">return</span> <span class="kc">None</span> + <div class="pdoc-code codehilite"><pre><span></span><span id="cast_as_date-919"><a href="#cast_as_date-919"><span class="linenos">919</span></a><span class="k">def</span> <span class="nf">cast_as_date</span><span class="p">(</span><span class="n">value</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Any</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">]:</span> +</span><span id="cast_as_date-920"><a href="#cast_as_date-920"><span class="linenos">920</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="p">):</span> +</span><span id="cast_as_date-921"><a href="#cast_as_date-921"><span class="linenos">921</span></a> <span class="k">return</span> <span class="n">value</span><span class="o">.</span><span class="n">date</span><span class="p">()</span> +</span><span id="cast_as_date-922"><a href="#cast_as_date-922"><span class="linenos">922</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">):</span> +</span><span id="cast_as_date-923"><a href="#cast_as_date-923"><span class="linenos">923</span></a> <span class="k">return</span> <span class="n">value</span> +</span><span id="cast_as_date-924"><a href="#cast_as_date-924"><span class="linenos">924</span></a> <span class="k">try</span><span class="p">:</span> +</span><span id="cast_as_date-925"><a href="#cast_as_date-925"><span class="linenos">925</span></a> <span class="k">return</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="o">.</span><span class="n">fromisoformat</span><span class="p">(</span><span class="n">value</span><span class="p">)</span><span class="o">.</span><span class="n">date</span><span class="p">()</span> +</span><span id="cast_as_date-926"><a href="#cast_as_date-926"><span class="linenos">926</span></a> <span class="k">except</span> <span class="ne">ValueError</span><span class="p">:</span> +</span><span id="cast_as_date-927"><a href="#cast_as_date-927"><span class="linenos">927</span></a> <span class="k">return</span> <span class="kc">None</span> </span></pre></div> @@ -2427,15 +2533,15 @@ a b </div> <a class="headerlink" href="#cast_as_datetime"></a> - <div class="pdoc-code codehilite"><pre><span></span><span id="cast_as_datetime-894"><a href="#cast_as_datetime-894"><span class="linenos">894</span></a><span class="k">def</span> <span class="nf">cast_as_datetime</span><span class="p">(</span><span class="n">value</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Any</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="p">]:</span> -</span><span id="cast_as_datetime-895"><a href="#cast_as_datetime-895"><span class="linenos">895</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="p">):</span> -</span><span id="cast_as_datetime-896"><a href="#cast_as_datetime-896"><span class="linenos">896</span></a> <span class="k">return</span> <span class="n">value</span> -</span><span id="cast_as_datetime-897"><a href="#cast_as_datetime-897"><span class="linenos">897</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">):</span> -</span><span id="cast_as_datetime-898"><a href="#cast_as_datetime-898"><span class="linenos">898</span></a> <span class="k">return</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="p">(</span><span class="n">year</span><span class="o">=</span><span class="n">value</span><span class="o">.</span><span class="n">year</span><span class="p">,</span> <span class="n">month</span><span class="o">=</span><span class="n">value</span><span class="o">.</span><span class="n">month</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="n">value</span><span class="o">.</span><span class="n">day</span><span class="p">)</span> -</span><span id="cast_as_datetime-899"><a href="#cast_as_datetime-899"><span class="linenos">899</span></a> <span class="k">try</span><span class="p">:</span> -</span><span id="cast_as_datetime-900"><a href="#cast_as_datetime-900"><span class="linenos">900</span></a> <span class="k">return</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="o">.</span><span class="n">fromisoformat</span><span class="p">(</span><span class="n">value</span><span class="p">)</span> -</span><span id="cast_as_datetime-901"><a href="#cast_as_datetime-901"><span class="linenos">901</span></a> <span class="k">except</span> <span class="ne">ValueError</span><span class="p">:</span> -</span><span id="cast_as_datetime-902"><a href="#cast_as_datetime-902"><span class="linenos">902</span></a> <span class="k">return</span> <span class="kc">None</span> + <div class="pdoc-code codehilite"><pre><span></span><span id="cast_as_datetime-930"><a href="#cast_as_datetime-930"><span class="linenos">930</span></a><span class="k">def</span> <span class="nf">cast_as_datetime</span><span class="p">(</span><span class="n">value</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Any</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="p">]:</span> +</span><span id="cast_as_datetime-931"><a href="#cast_as_datetime-931"><span class="linenos">931</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="p">):</span> +</span><span id="cast_as_datetime-932"><a href="#cast_as_datetime-932"><span class="linenos">932</span></a> <span class="k">return</span> <span class="n">value</span> +</span><span id="cast_as_datetime-933"><a href="#cast_as_datetime-933"><span class="linenos">933</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">):</span> +</span><span id="cast_as_datetime-934"><a href="#cast_as_datetime-934"><span class="linenos">934</span></a> <span class="k">return</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="p">(</span><span class="n">year</span><span class="o">=</span><span class="n">value</span><span class="o">.</span><span class="n">year</span><span class="p">,</span> <span class="n">month</span><span class="o">=</span><span class="n">value</span><span class="o">.</span><span class="n">month</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="n">value</span><span class="o">.</span><span class="n">day</span><span class="p">)</span> +</span><span id="cast_as_datetime-935"><a href="#cast_as_datetime-935"><span class="linenos">935</span></a> <span class="k">try</span><span class="p">:</span> +</span><span id="cast_as_datetime-936"><a href="#cast_as_datetime-936"><span class="linenos">936</span></a> <span class="k">return</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="o">.</span><span class="n">fromisoformat</span><span class="p">(</span><span class="n">value</span><span class="p">)</span> +</span><span id="cast_as_datetime-937"><a href="#cast_as_datetime-937"><span class="linenos">937</span></a> <span class="k">except</span> <span class="ne">ValueError</span><span class="p">:</span> +</span><span id="cast_as_datetime-938"><a href="#cast_as_datetime-938"><span class="linenos">938</span></a> <span class="k">return</span> <span class="kc">None</span> </span></pre></div> @@ -2453,14 +2559,14 @@ a b </div> <a class="headerlink" href="#cast_value"></a> - <div class="pdoc-code codehilite"><pre><span></span><span id="cast_value-905"><a href="#cast_value-905"><span class="linenos">905</span></a><span class="k">def</span> <span class="nf">cast_value</span><span class="p">(</span><span class="n">value</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Any</span><span class="p">,</span> <span class="n">to</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Union</span><span class="p">[</span><span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">]]:</span> -</span><span id="cast_value-906"><a href="#cast_value-906"><span class="linenos">906</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">value</span><span class="p">:</span> -</span><span id="cast_value-907"><a href="#cast_value-907"><span class="linenos">907</span></a> <span class="k">return</span> <span class="kc">None</span> -</span><span id="cast_value-908"><a href="#cast_value-908"><span class="linenos">908</span></a> <span class="k">if</span> <span class="n">to</span><span class="o">.</span><span class="n">is_type</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">Type</span><span class="o">.</span><span class="n">DATE</span><span class="p">):</span> -</span><span id="cast_value-909"><a href="#cast_value-909"><span class="linenos">909</span></a> <span class="k">return</span> <span class="n">cast_as_date</span><span class="p">(</span><span class="n">value</span><span class="p">)</span> -</span><span id="cast_value-910"><a href="#cast_value-910"><span class="linenos">910</span></a> <span class="k">if</span> <span class="n">to</span><span class="o">.</span><span class="n">is_type</span><span class="p">(</span><span class="o">*</span><span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">TEMPORAL_TYPES</span><span class="p">):</span> -</span><span id="cast_value-911"><a href="#cast_value-911"><span class="linenos">911</span></a> <span class="k">return</span> <span class="n">cast_as_datetime</span><span class="p">(</span><span class="n">value</span><span class="p">)</span> -</span><span id="cast_value-912"><a href="#cast_value-912"><span class="linenos">912</span></a> <span class="k">return</span> <span class="kc">None</span> + <div class="pdoc-code codehilite"><pre><span></span><span id="cast_value-941"><a href="#cast_value-941"><span class="linenos">941</span></a><span class="k">def</span> <span class="nf">cast_value</span><span class="p">(</span><span class="n">value</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Any</span><span class="p">,</span> <span class="n">to</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Union</span><span class="p">[</span><span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">]]:</span> +</span><span id="cast_value-942"><a href="#cast_value-942"><span class="linenos">942</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">value</span><span class="p">:</span> +</span><span id="cast_value-943"><a href="#cast_value-943"><span class="linenos">943</span></a> <span class="k">return</span> <span class="kc">None</span> +</span><span id="cast_value-944"><a href="#cast_value-944"><span class="linenos">944</span></a> <span class="k">if</span> <span class="n">to</span><span class="o">.</span><span class="n">is_type</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">Type</span><span class="o">.</span><span class="n">DATE</span><span class="p">):</span> +</span><span id="cast_value-945"><a href="#cast_value-945"><span class="linenos">945</span></a> <span class="k">return</span> <span class="n">cast_as_date</span><span class="p">(</span><span class="n">value</span><span class="p">)</span> +</span><span id="cast_value-946"><a href="#cast_value-946"><span class="linenos">946</span></a> <span class="k">if</span> <span class="n">to</span><span class="o">.</span><span class="n">is_type</span><span class="p">(</span><span class="o">*</span><span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">TEMPORAL_TYPES</span><span class="p">):</span> +</span><span id="cast_value-947"><a href="#cast_value-947"><span class="linenos">947</span></a> <span class="k">return</span> <span class="n">cast_as_datetime</span><span class="p">(</span><span class="n">value</span><span class="p">)</span> +</span><span id="cast_value-948"><a href="#cast_value-948"><span class="linenos">948</span></a> <span class="k">return</span> <span class="kc">None</span> </span></pre></div> @@ -2478,21 +2584,21 @@ a b </div> <a class="headerlink" href="#extract_date"></a> - <div class="pdoc-code codehilite"><pre><span></span><span id="extract_date-915"><a href="#extract_date-915"><span class="linenos">915</span></a><span class="k">def</span> <span class="nf">extract_date</span><span class="p">(</span><span class="n">cast</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Union</span><span class="p">[</span><span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">]]:</span> -</span><span id="extract_date-916"><a href="#extract_date-916"><span class="linenos">916</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">cast</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Cast</span><span class="p">):</span> -</span><span id="extract_date-917"><a href="#extract_date-917"><span class="linenos">917</span></a> <span class="n">to</span> <span class="o">=</span> <span class="n">cast</span><span class="o">.</span><span class="n">to</span> -</span><span id="extract_date-918"><a href="#extract_date-918"><span class="linenos">918</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">cast</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">TsOrDsToDate</span><span class="p">):</span> -</span><span id="extract_date-919"><a href="#extract_date-919"><span class="linenos">919</span></a> <span class="n">to</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">build</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">Type</span><span class="o">.</span><span class="n">DATE</span><span class="p">)</span> -</span><span id="extract_date-920"><a href="#extract_date-920"><span class="linenos">920</span></a> <span class="k">else</span><span class="p">:</span> -</span><span id="extract_date-921"><a href="#extract_date-921"><span class="linenos">921</span></a> <span class="k">return</span> <span class="kc">None</span> -</span><span id="extract_date-922"><a href="#extract_date-922"><span class="linenos">922</span></a> -</span><span id="extract_date-923"><a href="#extract_date-923"><span class="linenos">923</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">cast</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="p">):</span> -</span><span id="extract_date-924"><a href="#extract_date-924"><span class="linenos">924</span></a> <span class="n">value</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Any</span> <span class="o">=</span> <span class="n">cast</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">name</span> -</span><span id="extract_date-925"><a href="#extract_date-925"><span class="linenos">925</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">cast</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Cast</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">TsOrDsToDate</span><span class="p">)):</span> -</span><span id="extract_date-926"><a href="#extract_date-926"><span class="linenos">926</span></a> <span class="n">value</span> <span class="o">=</span> <span class="n">extract_date</span><span class="p">(</span><span class="n">cast</span><span class="o">.</span><span class="n">this</span><span class="p">)</span> -</span><span id="extract_date-927"><a href="#extract_date-927"><span class="linenos">927</span></a> <span class="k">else</span><span class="p">:</span> -</span><span id="extract_date-928"><a href="#extract_date-928"><span class="linenos">928</span></a> <span class="k">return</span> <span class="kc">None</span> -</span><span id="extract_date-929"><a href="#extract_date-929"><span class="linenos">929</span></a> <span class="k">return</span> <span class="n">cast_value</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">to</span><span class="p">)</span> + <div class="pdoc-code codehilite"><pre><span></span><span id="extract_date-951"><a href="#extract_date-951"><span class="linenos">951</span></a><span class="k">def</span> <span class="nf">extract_date</span><span class="p">(</span><span class="n">cast</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Union</span><span class="p">[</span><span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">]]:</span> +</span><span id="extract_date-952"><a href="#extract_date-952"><span class="linenos">952</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">cast</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Cast</span><span class="p">):</span> +</span><span id="extract_date-953"><a href="#extract_date-953"><span class="linenos">953</span></a> <span class="n">to</span> <span class="o">=</span> <span class="n">cast</span><span class="o">.</span><span class="n">to</span> +</span><span id="extract_date-954"><a href="#extract_date-954"><span class="linenos">954</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">cast</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">TsOrDsToDate</span><span class="p">):</span> +</span><span id="extract_date-955"><a href="#extract_date-955"><span class="linenos">955</span></a> <span class="n">to</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">build</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">Type</span><span class="o">.</span><span class="n">DATE</span><span class="p">)</span> +</span><span id="extract_date-956"><a href="#extract_date-956"><span class="linenos">956</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="extract_date-957"><a href="#extract_date-957"><span class="linenos">957</span></a> <span class="k">return</span> <span class="kc">None</span> +</span><span id="extract_date-958"><a href="#extract_date-958"><span class="linenos">958</span></a> +</span><span id="extract_date-959"><a href="#extract_date-959"><span class="linenos">959</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">cast</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="p">):</span> +</span><span id="extract_date-960"><a href="#extract_date-960"><span class="linenos">960</span></a> <span class="n">value</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Any</span> <span class="o">=</span> <span class="n">cast</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">name</span> +</span><span id="extract_date-961"><a href="#extract_date-961"><span class="linenos">961</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">cast</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Cast</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">TsOrDsToDate</span><span class="p">)):</span> +</span><span id="extract_date-962"><a href="#extract_date-962"><span class="linenos">962</span></a> <span class="n">value</span> <span class="o">=</span> <span class="n">extract_date</span><span class="p">(</span><span class="n">cast</span><span class="o">.</span><span class="n">this</span><span class="p">)</span> +</span><span id="extract_date-963"><a href="#extract_date-963"><span class="linenos">963</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="extract_date-964"><a href="#extract_date-964"><span class="linenos">964</span></a> <span class="k">return</span> <span class="kc">None</span> +</span><span id="extract_date-965"><a href="#extract_date-965"><span class="linenos">965</span></a> <span class="k">return</span> <span class="n">cast_value</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">to</span><span class="p">)</span> </span></pre></div> @@ -2510,14 +2616,14 @@ a b </div> <a class="headerlink" href="#extract_interval"></a> - <div class="pdoc-code codehilite"><pre><span></span><span id="extract_interval-936"><a href="#extract_interval-936"><span class="linenos">936</span></a><span class="k">def</span> <span class="nf">extract_interval</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span> -</span><span id="extract_interval-937"><a href="#extract_interval-937"><span class="linenos">937</span></a> <span class="n">n</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">name</span><span class="p">)</span> -</span><span id="extract_interval-938"><a href="#extract_interval-938"><span class="linenos">938</span></a> <span class="n">unit</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">text</span><span class="p">(</span><span class="s2">"unit"</span><span class="p">)</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span> -</span><span id="extract_interval-939"><a href="#extract_interval-939"><span class="linenos">939</span></a> -</span><span id="extract_interval-940"><a href="#extract_interval-940"><span class="linenos">940</span></a> <span class="k">try</span><span class="p">:</span> -</span><span id="extract_interval-941"><a href="#extract_interval-941"><span class="linenos">941</span></a> <span class="k">return</span> <span class="n">interval</span><span class="p">(</span><span class="n">unit</span><span class="p">,</span> <span class="n">n</span><span class="p">)</span> -</span><span id="extract_interval-942"><a href="#extract_interval-942"><span class="linenos">942</span></a> <span class="k">except</span> <span class="p">(</span><span class="n">UnsupportedUnit</span><span class="p">,</span> <span class="ne">ModuleNotFoundError</span><span class="p">):</span> -</span><span id="extract_interval-943"><a href="#extract_interval-943"><span class="linenos">943</span></a> <span class="k">return</span> <span class="kc">None</span> + <div class="pdoc-code codehilite"><pre><span></span><span id="extract_interval-972"><a href="#extract_interval-972"><span class="linenos">972</span></a><span class="k">def</span> <span class="nf">extract_interval</span><span class="p">(</span><span class="n">expression</span><span class="p">):</span> +</span><span id="extract_interval-973"><a href="#extract_interval-973"><span class="linenos">973</span></a> <span class="n">n</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">name</span><span class="p">)</span> +</span><span id="extract_interval-974"><a href="#extract_interval-974"><span class="linenos">974</span></a> <span class="n">unit</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">text</span><span class="p">(</span><span class="s2">"unit"</span><span class="p">)</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span> +</span><span id="extract_interval-975"><a href="#extract_interval-975"><span class="linenos">975</span></a> +</span><span id="extract_interval-976"><a href="#extract_interval-976"><span class="linenos">976</span></a> <span class="k">try</span><span class="p">:</span> +</span><span id="extract_interval-977"><a href="#extract_interval-977"><span class="linenos">977</span></a> <span class="k">return</span> <span class="n">interval</span><span class="p">(</span><span class="n">unit</span><span class="p">,</span> <span class="n">n</span><span class="p">)</span> +</span><span id="extract_interval-978"><a href="#extract_interval-978"><span class="linenos">978</span></a> <span class="k">except</span> <span class="p">(</span><span class="n">UnsupportedUnit</span><span class="p">,</span> <span class="ne">ModuleNotFoundError</span><span class="p">):</span> +</span><span id="extract_interval-979"><a href="#extract_interval-979"><span class="linenos">979</span></a> <span class="k">return</span> <span class="kc">None</span> </span></pre></div> @@ -2535,13 +2641,13 @@ a b </div> <a class="headerlink" href="#date_literal"></a> - <div class="pdoc-code codehilite"><pre><span></span><span id="date_literal-946"><a href="#date_literal-946"><span class="linenos">946</span></a><span class="k">def</span> <span class="nf">date_literal</span><span class="p">(</span><span class="n">date</span><span class="p">):</span> -</span><span id="date_literal-947"><a href="#date_literal-947"><span class="linenos">947</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">cast</span><span class="p">(</span> -</span><span id="date_literal-948"><a href="#date_literal-948"><span class="linenos">948</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="o">.</span><span class="n">string</span><span class="p">(</span><span class="n">date</span><span class="p">),</span> -</span><span id="date_literal-949"><a href="#date_literal-949"><span class="linenos">949</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">Type</span><span class="o">.</span><span class="n">DATETIME</span> -</span><span id="date_literal-950"><a href="#date_literal-950"><span class="linenos">950</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">date</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="p">)</span> -</span><span id="date_literal-951"><a href="#date_literal-951"><span class="linenos">951</span></a> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">Type</span><span class="o">.</span><span class="n">DATE</span><span class="p">,</span> -</span><span id="date_literal-952"><a href="#date_literal-952"><span class="linenos">952</span></a> <span class="p">)</span> + <div class="pdoc-code codehilite"><pre><span></span><span id="date_literal-982"><a href="#date_literal-982"><span class="linenos">982</span></a><span class="k">def</span> <span class="nf">date_literal</span><span class="p">(</span><span class="n">date</span><span class="p">):</span> +</span><span id="date_literal-983"><a href="#date_literal-983"><span class="linenos">983</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">cast</span><span class="p">(</span> +</span><span id="date_literal-984"><a href="#date_literal-984"><span class="linenos">984</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Literal</span><span class="o">.</span><span class="n">string</span><span class="p">(</span><span class="n">date</span><span class="p">),</span> +</span><span id="date_literal-985"><a href="#date_literal-985"><span class="linenos">985</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">Type</span><span class="o">.</span><span class="n">DATETIME</span> +</span><span id="date_literal-986"><a href="#date_literal-986"><span class="linenos">986</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">date</span><span class="p">,</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="p">)</span> +</span><span id="date_literal-987"><a href="#date_literal-987"><span class="linenos">987</span></a> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">Type</span><span class="o">.</span><span class="n">DATE</span><span class="p">,</span> +</span><span id="date_literal-988"><a href="#date_literal-988"><span class="linenos">988</span></a> <span class="p">)</span> </span></pre></div> @@ -2559,27 +2665,27 @@ a b </div> <a class="headerlink" href="#interval"></a> - <div class="pdoc-code codehilite"><pre><span></span><span id="interval-955"><a href="#interval-955"><span class="linenos">955</span></a><span class="k">def</span> <span class="nf">interval</span><span class="p">(</span><span class="n">unit</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">n</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="mi">1</span><span class="p">):</span> -</span><span id="interval-956"><a href="#interval-956"><span class="linenos">956</span></a> <span class="kn">from</span> <span class="nn">dateutil.relativedelta</span> <span class="kn">import</span> <span class="n">relativedelta</span> -</span><span id="interval-957"><a href="#interval-957"><span class="linenos">957</span></a> -</span><span id="interval-958"><a href="#interval-958"><span class="linenos">958</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"year"</span><span class="p">:</span> -</span><span id="interval-959"><a href="#interval-959"><span class="linenos">959</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">years</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span> -</span><span id="interval-960"><a href="#interval-960"><span class="linenos">960</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"quarter"</span><span class="p">:</span> -</span><span id="interval-961"><a href="#interval-961"><span class="linenos">961</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">months</span><span class="o">=</span><span class="mi">3</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span> -</span><span id="interval-962"><a href="#interval-962"><span class="linenos">962</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"month"</span><span class="p">:</span> -</span><span id="interval-963"><a href="#interval-963"><span class="linenos">963</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">months</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span> -</span><span id="interval-964"><a href="#interval-964"><span class="linenos">964</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"week"</span><span class="p">:</span> -</span><span id="interval-965"><a href="#interval-965"><span class="linenos">965</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">weeks</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span> -</span><span id="interval-966"><a href="#interval-966"><span class="linenos">966</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"day"</span><span class="p">:</span> -</span><span id="interval-967"><a href="#interval-967"><span class="linenos">967</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">days</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span> -</span><span id="interval-968"><a href="#interval-968"><span class="linenos">968</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"hour"</span><span class="p">:</span> -</span><span id="interval-969"><a href="#interval-969"><span class="linenos">969</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">hours</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span> -</span><span id="interval-970"><a href="#interval-970"><span class="linenos">970</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"minute"</span><span class="p">:</span> -</span><span id="interval-971"><a href="#interval-971"><span class="linenos">971</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">minutes</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span> -</span><span id="interval-972"><a href="#interval-972"><span class="linenos">972</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"second"</span><span class="p">:</span> -</span><span id="interval-973"><a href="#interval-973"><span class="linenos">973</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">seconds</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span> -</span><span id="interval-974"><a href="#interval-974"><span class="linenos">974</span></a> -</span><span id="interval-975"><a href="#interval-975"><span class="linenos">975</span></a> <span class="k">raise</span> <span class="n">UnsupportedUnit</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Unsupported unit: </span><span class="si">{</span><span class="n">unit</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> + <div class="pdoc-code codehilite"><pre><span></span><span id="interval-991"><a href="#interval-991"><span class="linenos"> 991</span></a><span class="k">def</span> <span class="nf">interval</span><span class="p">(</span><span class="n">unit</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">n</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="mi">1</span><span class="p">):</span> +</span><span id="interval-992"><a href="#interval-992"><span class="linenos"> 992</span></a> <span class="kn">from</span> <span class="nn">dateutil.relativedelta</span> <span class="kn">import</span> <span class="n">relativedelta</span> +</span><span id="interval-993"><a href="#interval-993"><span class="linenos"> 993</span></a> +</span><span id="interval-994"><a href="#interval-994"><span class="linenos"> 994</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"year"</span><span class="p">:</span> +</span><span id="interval-995"><a href="#interval-995"><span class="linenos"> 995</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">years</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span> +</span><span id="interval-996"><a href="#interval-996"><span class="linenos"> 996</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"quarter"</span><span class="p">:</span> +</span><span id="interval-997"><a href="#interval-997"><span class="linenos"> 997</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">months</span><span class="o">=</span><span class="mi">3</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span> +</span><span id="interval-998"><a href="#interval-998"><span class="linenos"> 998</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"month"</span><span class="p">:</span> +</span><span id="interval-999"><a href="#interval-999"><span class="linenos"> 999</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">months</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span> +</span><span id="interval-1000"><a href="#interval-1000"><span class="linenos">1000</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"week"</span><span class="p">:</span> +</span><span id="interval-1001"><a href="#interval-1001"><span class="linenos">1001</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">weeks</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span> +</span><span id="interval-1002"><a href="#interval-1002"><span class="linenos">1002</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"day"</span><span class="p">:</span> +</span><span id="interval-1003"><a href="#interval-1003"><span class="linenos">1003</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">days</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span> +</span><span id="interval-1004"><a href="#interval-1004"><span class="linenos">1004</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"hour"</span><span class="p">:</span> +</span><span id="interval-1005"><a href="#interval-1005"><span class="linenos">1005</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">hours</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span> +</span><span id="interval-1006"><a href="#interval-1006"><span class="linenos">1006</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"minute"</span><span class="p">:</span> +</span><span id="interval-1007"><a href="#interval-1007"><span class="linenos">1007</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">minutes</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span> +</span><span id="interval-1008"><a href="#interval-1008"><span class="linenos">1008</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"second"</span><span class="p">:</span> +</span><span id="interval-1009"><a href="#interval-1009"><span class="linenos">1009</span></a> <span class="k">return</span> <span class="n">relativedelta</span><span class="p">(</span><span class="n">seconds</span><span class="o">=</span><span class="mi">1</span> <span class="o">*</span> <span class="n">n</span><span class="p">)</span> +</span><span id="interval-1010"><a href="#interval-1010"><span class="linenos">1010</span></a> +</span><span id="interval-1011"><a href="#interval-1011"><span class="linenos">1011</span></a> <span class="k">raise</span> <span class="n">UnsupportedUnit</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Unsupported unit: </span><span class="si">{</span><span class="n">unit</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> </span></pre></div> @@ -2597,27 +2703,27 @@ a b </div> <a class="headerlink" href="#date_floor"></a> - <div class="pdoc-code codehilite"><pre><span></span><span id="date_floor-978"><a href="#date_floor-978"><span class="linenos">978</span></a><span class="k">def</span> <span class="nf">date_floor</span><span class="p">(</span><span class="n">d</span><span class="p">:</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span> <span class="n">unit</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-></span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">:</span> -</span><span id="date_floor-979"><a href="#date_floor-979"><span class="linenos">979</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"year"</span><span class="p">:</span> -</span><span id="date_floor-980"><a href="#date_floor-980"><span class="linenos">980</span></a> <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">month</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span> -</span><span id="date_floor-981"><a href="#date_floor-981"><span class="linenos">981</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"quarter"</span><span class="p">:</span> -</span><span id="date_floor-982"><a href="#date_floor-982"><span class="linenos">982</span></a> <span class="k">if</span> <span class="n">d</span><span class="o">.</span><span class="n">month</span> <span class="o"><=</span> <span class="mi">3</span><span class="p">:</span> -</span><span id="date_floor-983"><a href="#date_floor-983"><span class="linenos">983</span></a> <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">month</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span> -</span><span id="date_floor-984"><a href="#date_floor-984"><span class="linenos">984</span></a> <span class="k">elif</span> <span class="n">d</span><span class="o">.</span><span class="n">month</span> <span class="o"><=</span> <span class="mi">6</span><span class="p">:</span> -</span><span id="date_floor-985"><a href="#date_floor-985"><span class="linenos">985</span></a> <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">month</span><span class="o">=</span><span class="mi">4</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span> -</span><span id="date_floor-986"><a href="#date_floor-986"><span class="linenos">986</span></a> <span class="k">elif</span> <span class="n">d</span><span class="o">.</span><span class="n">month</span> <span class="o"><=</span> <span class="mi">9</span><span class="p">:</span> -</span><span id="date_floor-987"><a href="#date_floor-987"><span class="linenos">987</span></a> <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">month</span><span class="o">=</span><span class="mi">7</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span> -</span><span id="date_floor-988"><a href="#date_floor-988"><span class="linenos">988</span></a> <span class="k">else</span><span class="p">:</span> -</span><span id="date_floor-989"><a href="#date_floor-989"><span class="linenos">989</span></a> <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">month</span><span class="o">=</span><span class="mi">10</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span> -</span><span id="date_floor-990"><a href="#date_floor-990"><span class="linenos">990</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"month"</span><span class="p">:</span> -</span><span id="date_floor-991"><a href="#date_floor-991"><span class="linenos">991</span></a> <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">month</span><span class="o">=</span><span class="n">d</span><span class="o">.</span><span class="n">month</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span> -</span><span id="date_floor-992"><a href="#date_floor-992"><span class="linenos">992</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"week"</span><span class="p">:</span> -</span><span id="date_floor-993"><a href="#date_floor-993"><span class="linenos">993</span></a> <span class="c1"># Assuming week starts on Monday (0) and ends on Sunday (6)</span> -</span><span id="date_floor-994"><a href="#date_floor-994"><span class="linenos">994</span></a> <span class="k">return</span> <span class="n">d</span> <span class="o">-</span> <span class="n">datetime</span><span class="o">.</span><span class="n">timedelta</span><span class="p">(</span><span class="n">days</span><span class="o">=</span><span class="n">d</span><span class="o">.</span><span class="n">weekday</span><span class="p">())</span> -</span><span id="date_floor-995"><a href="#date_floor-995"><span class="linenos">995</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"day"</span><span class="p">:</span> -</span><span id="date_floor-996"><a href="#date_floor-996"><span class="linenos">996</span></a> <span class="k">return</span> <span class="n">d</span> -</span><span id="date_floor-997"><a href="#date_floor-997"><span class="linenos">997</span></a> -</span><span id="date_floor-998"><a href="#date_floor-998"><span class="linenos">998</span></a> <span class="k">raise</span> <span class="n">UnsupportedUnit</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Unsupported unit: </span><span class="si">{</span><span class="n">unit</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> + <div class="pdoc-code codehilite"><pre><span></span><span id="date_floor-1014"><a href="#date_floor-1014"><span class="linenos">1014</span></a><span class="k">def</span> <span class="nf">date_floor</span><span class="p">(</span><span class="n">d</span><span class="p">:</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span> <span class="n">unit</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-></span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">:</span> +</span><span id="date_floor-1015"><a href="#date_floor-1015"><span class="linenos">1015</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"year"</span><span class="p">:</span> +</span><span id="date_floor-1016"><a href="#date_floor-1016"><span class="linenos">1016</span></a> <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">month</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span> +</span><span id="date_floor-1017"><a href="#date_floor-1017"><span class="linenos">1017</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"quarter"</span><span class="p">:</span> +</span><span id="date_floor-1018"><a href="#date_floor-1018"><span class="linenos">1018</span></a> <span class="k">if</span> <span class="n">d</span><span class="o">.</span><span class="n">month</span> <span class="o"><=</span> <span class="mi">3</span><span class="p">:</span> +</span><span id="date_floor-1019"><a href="#date_floor-1019"><span class="linenos">1019</span></a> <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">month</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span> +</span><span id="date_floor-1020"><a href="#date_floor-1020"><span class="linenos">1020</span></a> <span class="k">elif</span> <span class="n">d</span><span class="o">.</span><span class="n">month</span> <span class="o"><=</span> <span class="mi">6</span><span class="p">:</span> +</span><span id="date_floor-1021"><a href="#date_floor-1021"><span class="linenos">1021</span></a> <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">month</span><span class="o">=</span><span class="mi">4</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span> +</span><span id="date_floor-1022"><a href="#date_floor-1022"><span class="linenos">1022</span></a> <span class="k">elif</span> <span class="n">d</span><span class="o">.</span><span class="n">month</span> <span class="o"><=</span> <span class="mi">9</span><span class="p">:</span> +</span><span id="date_floor-1023"><a href="#date_floor-1023"><span class="linenos">1023</span></a> <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">month</span><span class="o">=</span><span class="mi">7</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span> +</span><span id="date_floor-1024"><a href="#date_floor-1024"><span class="linenos">1024</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="date_floor-1025"><a href="#date_floor-1025"><span class="linenos">1025</span></a> <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">month</span><span class="o">=</span><span class="mi">10</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span> +</span><span id="date_floor-1026"><a href="#date_floor-1026"><span class="linenos">1026</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"month"</span><span class="p">:</span> +</span><span id="date_floor-1027"><a href="#date_floor-1027"><span class="linenos">1027</span></a> <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">month</span><span class="o">=</span><span class="n">d</span><span class="o">.</span><span class="n">month</span><span class="p">,</span> <span class="n">day</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span> +</span><span id="date_floor-1028"><a href="#date_floor-1028"><span class="linenos">1028</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"week"</span><span class="p">:</span> +</span><span id="date_floor-1029"><a href="#date_floor-1029"><span class="linenos">1029</span></a> <span class="c1"># Assuming week starts on Monday (0) and ends on Sunday (6)</span> +</span><span id="date_floor-1030"><a href="#date_floor-1030"><span class="linenos">1030</span></a> <span class="k">return</span> <span class="n">d</span> <span class="o">-</span> <span class="n">datetime</span><span class="o">.</span><span class="n">timedelta</span><span class="p">(</span><span class="n">days</span><span class="o">=</span><span class="n">d</span><span class="o">.</span><span class="n">weekday</span><span class="p">())</span> +</span><span id="date_floor-1031"><a href="#date_floor-1031"><span class="linenos">1031</span></a> <span class="k">if</span> <span class="n">unit</span> <span class="o">==</span> <span class="s2">"day"</span><span class="p">:</span> +</span><span id="date_floor-1032"><a href="#date_floor-1032"><span class="linenos">1032</span></a> <span class="k">return</span> <span class="n">d</span> +</span><span id="date_floor-1033"><a href="#date_floor-1033"><span class="linenos">1033</span></a> +</span><span id="date_floor-1034"><a href="#date_floor-1034"><span class="linenos">1034</span></a> <span class="k">raise</span> <span class="n">UnsupportedUnit</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Unsupported unit: </span><span class="si">{</span><span class="n">unit</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> </span></pre></div> @@ -2635,13 +2741,13 @@ a b </div> <a class="headerlink" href="#date_ceil"></a> - <div class="pdoc-code codehilite"><pre><span></span><span id="date_ceil-1001"><a href="#date_ceil-1001"><span class="linenos">1001</span></a><span class="k">def</span> <span class="nf">date_ceil</span><span class="p">(</span><span class="n">d</span><span class="p">:</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span> <span class="n">unit</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-></span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">:</span> -</span><span id="date_ceil-1002"><a href="#date_ceil-1002"><span class="linenos">1002</span></a> <span class="n">floor</span> <span class="o">=</span> <span class="n">date_floor</span><span class="p">(</span><span class="n">d</span><span class="p">,</span> <span class="n">unit</span><span class="p">)</span> -</span><span id="date_ceil-1003"><a href="#date_ceil-1003"><span class="linenos">1003</span></a> -</span><span id="date_ceil-1004"><a href="#date_ceil-1004"><span class="linenos">1004</span></a> <span class="k">if</span> <span class="n">floor</span> <span class="o">==</span> <span class="n">d</span><span class="p">:</span> -</span><span id="date_ceil-1005"><a href="#date_ceil-1005"><span class="linenos">1005</span></a> <span class="k">return</span> <span class="n">d</span> -</span><span id="date_ceil-1006"><a href="#date_ceil-1006"><span class="linenos">1006</span></a> -</span><span id="date_ceil-1007"><a href="#date_ceil-1007"><span class="linenos">1007</span></a> <span class="k">return</span> <span class="n">floor</span> <span class="o">+</span> <span class="n">interval</span><span class="p">(</span><span class="n">unit</span><span class="p">)</span> + <div class="pdoc-code codehilite"><pre><span></span><span id="date_ceil-1037"><a href="#date_ceil-1037"><span class="linenos">1037</span></a><span class="k">def</span> <span class="nf">date_ceil</span><span class="p">(</span><span class="n">d</span><span class="p">:</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">,</span> <span class="n">unit</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-></span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">:</span> +</span><span id="date_ceil-1038"><a href="#date_ceil-1038"><span class="linenos">1038</span></a> <span class="n">floor</span> <span class="o">=</span> <span class="n">date_floor</span><span class="p">(</span><span class="n">d</span><span class="p">,</span> <span class="n">unit</span><span class="p">)</span> +</span><span id="date_ceil-1039"><a href="#date_ceil-1039"><span class="linenos">1039</span></a> +</span><span id="date_ceil-1040"><a href="#date_ceil-1040"><span class="linenos">1040</span></a> <span class="k">if</span> <span class="n">floor</span> <span class="o">==</span> <span class="n">d</span><span class="p">:</span> +</span><span id="date_ceil-1041"><a href="#date_ceil-1041"><span class="linenos">1041</span></a> <span class="k">return</span> <span class="n">d</span> +</span><span id="date_ceil-1042"><a href="#date_ceil-1042"><span class="linenos">1042</span></a> +</span><span id="date_ceil-1043"><a href="#date_ceil-1043"><span class="linenos">1043</span></a> <span class="k">return</span> <span class="n">floor</span> <span class="o">+</span> <span class="n">interval</span><span class="p">(</span><span class="n">unit</span><span class="p">)</span> </span></pre></div> @@ -2659,8 +2765,8 @@ a b </div> <a class="headerlink" href="#boolean_literal"></a> - <div class="pdoc-code codehilite"><pre><span></span><span id="boolean_literal-1010"><a href="#boolean_literal-1010"><span class="linenos">1010</span></a><span class="k">def</span> <span class="nf">boolean_literal</span><span class="p">(</span><span class="n">condition</span><span class="p">):</span> -</span><span id="boolean_literal-1011"><a href="#boolean_literal-1011"><span class="linenos">1011</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> <span class="k">if</span> <span class="n">condition</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> + <div class="pdoc-code codehilite"><pre><span></span><span id="boolean_literal-1046"><a href="#boolean_literal-1046"><span class="linenos">1046</span></a><span class="k">def</span> <span class="nf">boolean_literal</span><span class="p">(</span><span class="n">condition</span><span class="p">):</span> +</span><span id="boolean_literal-1047"><a href="#boolean_literal-1047"><span class="linenos">1047</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">()</span> <span class="k">if</span> <span class="n">condition</span> <span class="k">else</span> <span class="n">exp</span><span class="o">.</span><span class="n">false</span><span class="p">()</span> </span></pre></div> |