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diff --git a/docs/sqlglot/optimizer/qualify_columns.html b/docs/sqlglot/optimizer/qualify_columns.html index 328bf86..7b30b8d 100644 --- a/docs/sqlglot/optimizer/qualify_columns.html +++ b/docs/sqlglot/optimizer/qualify_columns.html @@ -3,7 +3,7 @@ <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> - <meta name="generator" content="pdoc 13.1.0"/> + <meta name="generator" content="pdoc 13.1.1"/> <title>sqlglot.optimizer.qualify_columns API documentation</title> <style>/*! * Bootstrap Reboot v5.0.0 (https://getbootstrap.com/) * Copyright 2011-2021 The Bootstrap Authors * Copyright 2011-2021 Twitter, Inc. * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE) * Forked from Normalize.css, licensed MIT (https://github.com/necolas/normalize.css/blob/master/LICENSE.md) */*,::after,::before{box-sizing:border-box}@media (prefers-reduced-motion:no-preference){:root{scroll-behavior:smooth}}body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans","Liberation Sans",sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji";font-size:1rem;font-weight:400;line-height:1.5;color:#212529;background-color:#fff;-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent}hr{margin:1rem 0;color:inherit;background-color:currentColor;border:0;opacity:.25}hr:not([size]){height:1px}h1,h2,h3,h4,h5,h6{margin-top:0;margin-bottom:.5rem;font-weight:500;line-height:1.2}h1{font-size:calc(1.375rem + 1.5vw)}@media (min-width:1200px){h1{font-size:2.5rem}}h2{font-size:calc(1.325rem + .9vw)}@media (min-width:1200px){h2{font-size:2rem}}h3{font-size:calc(1.3rem + .6vw)}@media (min-width:1200px){h3{font-size:1.75rem}}h4{font-size:calc(1.275rem + .3vw)}@media (min-width:1200px){h4{font-size:1.5rem}}h5{font-size:1.25rem}h6{font-size:1rem}p{margin-top:0;margin-bottom:1rem}abbr[data-bs-original-title],abbr[title]{-webkit-text-decoration:underline dotted;text-decoration:underline dotted;cursor:help;-webkit-text-decoration-skip-ink:none;text-decoration-skip-ink:none}address{margin-bottom:1rem;font-style:normal;line-height:inherit}ol,ul{padding-left:2rem}dl,ol,ul{margin-top:0;margin-bottom:1rem}ol ol,ol ul,ul ol,ul ul{margin-bottom:0}dt{font-weight:700}dd{margin-bottom:.5rem;margin-left:0}blockquote{margin:0 0 1rem}b,strong{font-weight:bolder}small{font-size:.875em}mark{padding:.2em;background-color:#fcf8e3}sub,sup{position:relative;font-size:.75em;line-height:0;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}a{color:#0d6efd;text-decoration:underline}a:hover{color:#0a58ca}a:not([href]):not([class]),a:not([href]):not([class]):hover{color:inherit;text-decoration:none}code,kbd,pre,samp{font-family:SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace;font-size:1em;direction:ltr;unicode-bidi:bidi-override}pre{display:block;margin-top:0;margin-bottom:1rem;overflow:auto;font-size:.875em}pre code{font-size:inherit;color:inherit;word-break:normal}code{font-size:.875em;color:#d63384;word-wrap:break-word}a>code{color:inherit}kbd{padding:.2rem .4rem;font-size:.875em;color:#fff;background-color:#212529;border-radius:.2rem}kbd kbd{padding:0;font-size:1em;font-weight:700}figure{margin:0 0 1rem}img,svg{vertical-align:middle}table{caption-side:bottom;border-collapse:collapse}caption{padding-top:.5rem;padding-bottom:.5rem;color:#6c757d;text-align:left}th{text-align:inherit;text-align:-webkit-match-parent}tbody,td,tfoot,th,thead,tr{border-color:inherit;border-style:solid;border-width:0}label{display:inline-block}button{border-radius:0}button:focus:not(:focus-visible){outline:0}button,input,optgroup,select,textarea{margin:0;font-family:inherit;font-size:inherit;line-height:inherit}button,select{text-transform:none}[role=button]{cursor:pointer}select{word-wrap:normal}select:disabled{opacity:1}[list]::-webkit-calendar-picker-indicator{display:none}[type=button],[type=reset],[type=submit],button{-webkit-appearance:button}[type=button]:not(:disabled),[type=reset]:not(:disabled),[type=submit]:not(:disabled),button:not(:disabled){cursor:pointer}::-moz-focus-inner{padding:0;border-style:none}textarea{resize:vertical}fieldset{min-width:0;padding:0;margin:0;border:0}legend{float:left;width:100%;padding:0;margin-bottom:.5rem;font-size:calc(1.275rem + .3vw);line-height:inherit}@media (min-width:1200px){legend{font-size:1.5rem}}legend+*{clear:left}::-webkit-datetime-edit-day-field,::-webkit-datetime-edit-fields-wrapper,::-webkit-datetime-edit-hour-field,::-webkit-datetime-edit-minute,::-webkit-datetime-edit-month-field,::-webkit-datetime-edit-text,::-webkit-datetime-edit-year-field{padding:0}::-webkit-inner-spin-button{height:auto}[type=search]{outline-offset:-2px;-webkit-appearance:textfield}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-color-swatch-wrapper{padding:0}::file-selector-button{font:inherit}::-webkit-file-upload-button{font:inherit;-webkit-appearance:button}output{display:inline-block}iframe{border:0}summary{display:list-item;cursor:pointer}progress{vertical-align:baseline}[hidden]{display:none!important}</style> @@ -172,432 +172,435 @@ </span><span id="L-93"><a href="#L-93"><span class="linenos"> 93</span></a> <span class="k">if</span> <span class="n">column</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">columns</span><span class="p">:</span> </span><span id="L-94"><a href="#L-94"><span class="linenos"> 94</span></a> <span class="n">columns</span><span class="p">[</span><span class="n">column</span><span class="p">]</span> <span class="o">=</span> <span class="n">k</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">ordered</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">join_table</span><span class="p">)</span> -</span><span id="L-97"><a href="#L-97"><span class="linenos"> 97</span></a> <span class="n">join_columns</span> <span class="o">=</span> <span class="n">resolver</span><span class="o">.</span><span class="n">get_source_columns</span><span class="p">(</span><span class="n">join_table</span><span class="p">)</span> -</span><span id="L-98"><a href="#L-98"><span class="linenos"> 98</span></a> <span class="n">conditions</span> <span class="o">=</span> <span class="p">[]</span> -</span><span id="L-99"><a href="#L-99"><span class="linenos"> 99</span></a> -</span><span id="L-100"><a href="#L-100"><span class="linenos">100</span></a> <span class="k">for</span> <span class="n">identifier</span> <span class="ow">in</span> <span class="n">using</span><span class="p">:</span> -</span><span id="L-101"><a href="#L-101"><span class="linenos">101</span></a> <span class="n">identifier</span> <span class="o">=</span> <span class="n">identifier</span><span class="o">.</span><span class="n">name</span> -</span><span id="L-102"><a href="#L-102"><span class="linenos">102</span></a> <span class="n">table</span> <span class="o">=</span> <span class="n">columns</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">identifier</span><span class="p">)</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">if</span> <span class="ow">not</span> <span class="n">table</span> <span class="ow">or</span> <span class="n">identifier</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">join_columns</span><span class="p">:</span> -</span><span id="L-105"><a href="#L-105"><span class="linenos">105</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Cannot automatically join: </span><span class="si">{</span><span class="n">identifier</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> -</span><span id="L-106"><a href="#L-106"><span class="linenos">106</span></a> -</span><span id="L-107"><a href="#L-107"><span class="linenos">107</span></a> <span class="n">conditions</span><span class="o">.</span><span class="n">append</span><span class="p">(</span> -</span><span id="L-108"><a href="#L-108"><span class="linenos">108</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">condition</span><span class="p">(</span> -</span><span id="L-109"><a href="#L-109"><span class="linenos">109</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">EQ</span><span class="p">(</span> -</span><span id="L-110"><a href="#L-110"><span class="linenos">110</span></a> <span class="n">this</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">column</span><span class="p">(</span><span class="n">identifier</span><span class="p">,</span> <span class="n">table</span><span class="o">=</span><span class="n">table</span><span class="p">),</span> -</span><span id="L-111"><a href="#L-111"><span class="linenos">111</span></a> <span class="n">expression</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">column</span><span class="p">(</span><span class="n">identifier</span><span class="p">,</span> <span class="n">table</span><span class="o">=</span><span class="n">join_table</span><span class="p">),</span> -</span><span id="L-112"><a href="#L-112"><span class="linenos">112</span></a> <span class="p">)</span> -</span><span id="L-113"><a href="#L-113"><span class="linenos">113</span></a> <span class="p">)</span> -</span><span id="L-114"><a href="#L-114"><span class="linenos">114</span></a> <span class="p">)</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="c1"># Set all values in the dict to None, because we only care about the key ordering</span> -</span><span id="L-117"><a href="#L-117"><span class="linenos">117</span></a> <span class="n">tables</span> <span class="o">=</span> <span class="n">column_tables</span><span class="o">.</span><span class="n">setdefault</span><span class="p">(</span><span class="n">identifier</span><span class="p">,</span> <span class="p">{})</span> -</span><span id="L-118"><a href="#L-118"><span class="linenos">118</span></a> <span class="k">if</span> <span class="n">table</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">tables</span><span class="p">:</span> -</span><span id="L-119"><a href="#L-119"><span class="linenos">119</span></a> <span class="n">tables</span><span class="p">[</span><span class="n">table</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span> -</span><span id="L-120"><a href="#L-120"><span class="linenos">120</span></a> <span class="k">if</span> <span class="n">join_table</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">tables</span><span class="p">:</span> -</span><span id="L-121"><a href="#L-121"><span class="linenos">121</span></a> <span class="n">tables</span><span class="p">[</span><span class="n">join_table</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span> -</span><span id="L-122"><a href="#L-122"><span class="linenos">122</span></a> -</span><span id="L-123"><a href="#L-123"><span class="linenos">123</span></a> <span class="n">join</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="s2">"using"</span><span class="p">)</span> -</span><span id="L-124"><a href="#L-124"><span class="linenos">124</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="n">exp</span><span class="o">.</span><span class="n">and_</span><span class="p">(</span><span class="o">*</span><span class="n">conditions</span><span class="p">))</span> +</span><span id="L-96"><a href="#L-96"><span class="linenos"> 96</span></a> <span class="n">source_table</span> <span class="o">=</span> <span class="n">ordered</span><span class="p">[</span><span class="o">-</span><span class="mi">1</span><span class="p">]</span> +</span><span id="L-97"><a href="#L-97"><span class="linenos"> 97</span></a> <span class="n">ordered</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">join_table</span><span class="p">)</span> +</span><span id="L-98"><a href="#L-98"><span class="linenos"> 98</span></a> <span class="n">join_columns</span> <span class="o">=</span> <span class="n">resolver</span><span class="o">.</span><span class="n">get_source_columns</span><span class="p">(</span><span class="n">join_table</span><span class="p">)</span> +</span><span id="L-99"><a href="#L-99"><span class="linenos"> 99</span></a> <span class="n">conditions</span> <span class="o">=</span> <span class="p">[]</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">for</span> <span class="n">identifier</span> <span class="ow">in</span> <span class="n">using</span><span class="p">:</span> +</span><span id="L-102"><a href="#L-102"><span class="linenos">102</span></a> <span class="n">identifier</span> <span class="o">=</span> <span class="n">identifier</span><span class="o">.</span><span class="n">name</span> +</span><span id="L-103"><a href="#L-103"><span class="linenos">103</span></a> <span class="n">table</span> <span class="o">=</span> <span class="n">columns</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">identifier</span><span class="p">)</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">if</span> <span class="ow">not</span> <span class="n">table</span> <span class="ow">or</span> <span class="n">identifier</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">join_columns</span><span class="p">:</span> +</span><span id="L-106"><a href="#L-106"><span class="linenos">106</span></a> <span class="k">if</span> <span class="n">columns</span> <span class="ow">and</span> <span class="n">join_columns</span><span class="p">:</span> +</span><span id="L-107"><a href="#L-107"><span class="linenos">107</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Cannot automatically join: </span><span class="si">{</span><span class="n">identifier</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> +</span><span id="L-108"><a href="#L-108"><span class="linenos">108</span></a> +</span><span id="L-109"><a href="#L-109"><span class="linenos">109</span></a> <span class="n">table</span> <span class="o">=</span> <span class="n">table</span> <span class="ow">or</span> <span class="n">source_table</span> +</span><span id="L-110"><a href="#L-110"><span class="linenos">110</span></a> <span class="n">conditions</span><span class="o">.</span><span class="n">append</span><span class="p">(</span> +</span><span id="L-111"><a href="#L-111"><span class="linenos">111</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">condition</span><span class="p">(</span> +</span><span id="L-112"><a href="#L-112"><span class="linenos">112</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">EQ</span><span class="p">(</span> +</span><span id="L-113"><a href="#L-113"><span class="linenos">113</span></a> <span class="n">this</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">column</span><span class="p">(</span><span class="n">identifier</span><span class="p">,</span> <span class="n">table</span><span class="o">=</span><span class="n">table</span><span class="p">),</span> +</span><span id="L-114"><a href="#L-114"><span class="linenos">114</span></a> <span class="n">expression</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">column</span><span class="p">(</span><span class="n">identifier</span><span class="p">,</span> <span class="n">table</span><span class="o">=</span><span class="n">join_table</span><span class="p">),</span> +</span><span id="L-115"><a href="#L-115"><span class="linenos">115</span></a> <span class="p">)</span> +</span><span id="L-116"><a href="#L-116"><span class="linenos">116</span></a> <span class="p">)</span> +</span><span id="L-117"><a href="#L-117"><span class="linenos">117</span></a> <span class="p">)</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="c1"># Set all values in the dict to None, because we only care about the key ordering</span> +</span><span id="L-120"><a href="#L-120"><span class="linenos">120</span></a> <span class="n">tables</span> <span class="o">=</span> <span class="n">column_tables</span><span class="o">.</span><span class="n">setdefault</span><span class="p">(</span><span class="n">identifier</span><span class="p">,</span> <span class="p">{})</span> +</span><span id="L-121"><a href="#L-121"><span class="linenos">121</span></a> <span class="k">if</span> <span class="n">table</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">tables</span><span class="p">:</span> +</span><span id="L-122"><a href="#L-122"><span class="linenos">122</span></a> <span class="n">tables</span><span class="p">[</span><span class="n">table</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span> +</span><span id="L-123"><a href="#L-123"><span class="linenos">123</span></a> <span class="k">if</span> <span class="n">join_table</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">tables</span><span class="p">:</span> +</span><span id="L-124"><a href="#L-124"><span class="linenos">124</span></a> <span class="n">tables</span><span class="p">[</span><span class="n">join_table</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span> </span><span id="L-125"><a href="#L-125"><span class="linenos">125</span></a> -</span><span id="L-126"><a href="#L-126"><span class="linenos">126</span></a> <span class="k">if</span> <span class="n">column_tables</span><span class="p">:</span> -</span><span id="L-127"><a href="#L-127"><span class="linenos">127</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">columns</span><span class="p">:</span> -</span><span id="L-128"><a href="#L-128"><span class="linenos">128</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">column</span><span class="o">.</span><span class="n">table</span> <span class="ow">and</span> <span class="n">column</span><span class="o">.</span><span class="n">name</span> <span class="ow">in</span> <span class="n">column_tables</span><span class="p">:</span> -</span><span id="L-129"><a href="#L-129"><span class="linenos">129</span></a> <span class="n">tables</span> <span class="o">=</span> <span class="n">column_tables</span><span class="p">[</span><span class="n">column</span><span class="o">.</span><span class="n">name</span><span class="p">]</span> -</span><span id="L-130"><a href="#L-130"><span class="linenos">130</span></a> <span class="n">coalesce</span> <span class="o">=</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="n">column</span><span class="o">.</span><span class="n">name</span><span class="p">,</span> <span class="n">table</span><span class="o">=</span><span class="n">table</span><span class="p">)</span> <span class="k">for</span> <span class="n">table</span> <span class="ow">in</span> <span class="n">tables</span><span class="p">]</span> -</span><span id="L-131"><a href="#L-131"><span class="linenos">131</span></a> <span class="n">replacement</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Coalesce</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">coalesce</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">expressions</span><span class="o">=</span><span class="n">coalesce</span><span class="p">[</span><span class="mi">1</span><span class="p">:])</span> -</span><span id="L-132"><a href="#L-132"><span class="linenos">132</span></a> -</span><span id="L-133"><a href="#L-133"><span class="linenos">133</span></a> <span class="c1"># Ensure selects keep their output name</span> -</span><span id="L-134"><a href="#L-134"><span class="linenos">134</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">column</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">Select</span><span class="p">):</span> -</span><span id="L-135"><a href="#L-135"><span class="linenos">135</span></a> <span class="n">replacement</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">alias_</span><span class="p">(</span><span class="n">replacement</span><span class="p">,</span> <span class="n">alias</span><span class="o">=</span><span class="n">column</span><span class="o">.</span><span class="n">name</span><span class="p">)</span> -</span><span id="L-136"><a href="#L-136"><span class="linenos">136</span></a> -</span><span id="L-137"><a href="#L-137"><span class="linenos">137</span></a> <span class="n">scope</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">column</span><span class="p">,</span> <span class="n">replacement</span><span class="p">)</span> -</span><span id="L-138"><a href="#L-138"><span class="linenos">138</span></a> -</span><span id="L-139"><a href="#L-139"><span class="linenos">139</span></a> <span class="k">return</span> <span class="n">column_tables</span> -</span><span id="L-140"><a href="#L-140"><span class="linenos">140</span></a> +</span><span id="L-126"><a href="#L-126"><span class="linenos">126</span></a> <span class="n">join</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="s2">"using"</span><span class="p">)</span> +</span><span id="L-127"><a href="#L-127"><span class="linenos">127</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="n">exp</span><span class="o">.</span><span class="n">and_</span><span class="p">(</span><span class="o">*</span><span class="n">conditions</span><span class="p">))</span> +</span><span id="L-128"><a href="#L-128"><span class="linenos">128</span></a> +</span><span id="L-129"><a href="#L-129"><span class="linenos">129</span></a> <span class="k">if</span> <span class="n">column_tables</span><span class="p">:</span> +</span><span id="L-130"><a href="#L-130"><span class="linenos">130</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">columns</span><span class="p">:</span> +</span><span id="L-131"><a href="#L-131"><span class="linenos">131</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">column</span><span class="o">.</span><span class="n">table</span> <span class="ow">and</span> <span class="n">column</span><span class="o">.</span><span class="n">name</span> <span class="ow">in</span> <span class="n">column_tables</span><span class="p">:</span> +</span><span id="L-132"><a href="#L-132"><span class="linenos">132</span></a> <span class="n">tables</span> <span class="o">=</span> <span class="n">column_tables</span><span class="p">[</span><span class="n">column</span><span class="o">.</span><span class="n">name</span><span class="p">]</span> +</span><span id="L-133"><a href="#L-133"><span class="linenos">133</span></a> <span class="n">coalesce</span> <span class="o">=</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="n">column</span><span class="o">.</span><span class="n">name</span><span class="p">,</span> <span class="n">table</span><span class="o">=</span><span class="n">table</span><span class="p">)</span> <span class="k">for</span> <span class="n">table</span> <span class="ow">in</span> <span class="n">tables</span><span class="p">]</span> +</span><span id="L-134"><a href="#L-134"><span class="linenos">134</span></a> <span class="n">replacement</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">Coalesce</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">coalesce</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">expressions</span><span class="o">=</span><span class="n">coalesce</span><span class="p">[</span><span class="mi">1</span><span class="p">:])</span> +</span><span id="L-135"><a href="#L-135"><span class="linenos">135</span></a> +</span><span id="L-136"><a href="#L-136"><span class="linenos">136</span></a> <span class="c1"># Ensure selects keep their output name</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">column</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">Select</span><span class="p">):</span> +</span><span id="L-138"><a href="#L-138"><span class="linenos">138</span></a> <span class="n">replacement</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">alias_</span><span class="p">(</span><span class="n">replacement</span><span class="p">,</span> <span class="n">alias</span><span class="o">=</span><span class="n">column</span><span class="o">.</span><span class="n">name</span><span class="p">)</span> +</span><span id="L-139"><a href="#L-139"><span class="linenos">139</span></a> +</span><span id="L-140"><a href="#L-140"><span class="linenos">140</span></a> <span class="n">scope</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">column</span><span class="p">,</span> <span class="n">replacement</span><span class="p">)</span> </span><span id="L-141"><a href="#L-141"><span class="linenos">141</span></a> -</span><span id="L-142"><a href="#L-142"><span class="linenos">142</span></a><span class="k">def</span> <span class="nf">_expand_alias_refs</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="n">resolver</span><span class="p">):</span> -</span><span id="L-143"><a href="#L-143"><span class="linenos">143</span></a> <span class="n">selects</span> <span class="o">=</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">column_tables</span> +</span><span id="L-143"><a href="#L-143"><span class="linenos">143</span></a> </span><span id="L-144"><a href="#L-144"><span class="linenos">144</span></a> -</span><span id="L-145"><a href="#L-145"><span class="linenos">145</span></a> <span class="c1"># Replace references to select aliases</span> -</span><span id="L-146"><a href="#L-146"><span class="linenos">146</span></a> <span class="k">def</span> <span class="nf">transform</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">source_first</span><span class="o">=</span><span class="kc">True</span><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">node</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="ow">not</span> <span class="n">node</span><span class="o">.</span><span class="n">table</span><span class="p">:</span> -</span><span id="L-148"><a href="#L-148"><span class="linenos">148</span></a> <span class="n">table</span> <span class="o">=</span> <span class="n">resolver</span><span class="o">.</span><span class="n">get_table</span><span class="p">(</span><span class="n">node</span><span class="o">.</span><span class="n">name</span><span class="p">)</span> -</span><span id="L-149"><a href="#L-149"><span class="linenos">149</span></a> -</span><span id="L-150"><a href="#L-150"><span class="linenos">150</span></a> <span class="c1"># Source columns get priority over select aliases</span> -</span><span id="L-151"><a href="#L-151"><span class="linenos">151</span></a> <span class="k">if</span> <span class="n">source_first</span> <span class="ow">and</span> <span class="n">table</span><span class="p">:</span> -</span><span id="L-152"><a href="#L-152"><span class="linenos">152</span></a> <span class="n">node</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"table"</span><span class="p">,</span> <span class="n">table</span><span class="p">)</span> -</span><span id="L-153"><a href="#L-153"><span class="linenos">153</span></a> <span class="k">return</span> <span class="n">node</span> -</span><span id="L-154"><a href="#L-154"><span class="linenos">154</span></a> -</span><span id="L-155"><a href="#L-155"><span class="linenos">155</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">selects</span><span class="p">:</span> -</span><span id="L-156"><a href="#L-156"><span class="linenos">156</span></a> <span class="k">for</span> <span class="n">s</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">selects</span><span class="p">:</span> -</span><span id="L-157"><a href="#L-157"><span class="linenos">157</span></a> <span class="n">selects</span><span class="p">[</span><span class="n">s</span><span class="o">.</span><span class="n">alias_or_name</span><span class="p">]</span> <span class="o">=</span> <span class="n">s</span> -</span><span id="L-158"><a href="#L-158"><span class="linenos">158</span></a> <span class="n">select</span> <span class="o">=</span> <span class="n">selects</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">node</span><span class="o">.</span><span class="n">name</span><span class="p">)</span> -</span><span id="L-159"><a href="#L-159"><span class="linenos">159</span></a> -</span><span id="L-160"><a href="#L-160"><span class="linenos">160</span></a> <span class="k">if</span> <span class="n">select</span><span class="p">:</span> -</span><span id="L-161"><a href="#L-161"><span class="linenos">161</span></a> <span class="n">scope</span><span class="o">.</span><span class="n">clear_cache</span><span class="p">()</span> -</span><span id="L-162"><a href="#L-162"><span class="linenos">162</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">select</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Alias</span><span class="p">):</span> -</span><span id="L-163"><a href="#L-163"><span class="linenos">163</span></a> <span class="n">select</span> <span class="o">=</span> <span class="n">select</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">select</span><span class="o">.</span><span class="n">copy</span><span class="p">()</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="n">node</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"table"</span><span class="p">,</span> <span class="n">table</span><span class="p">)</span> -</span><span id="L-167"><a href="#L-167"><span class="linenos">167</span></a> <span class="k">elif</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">Expression</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">node</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Subqueryable</span><span class="p">):</span> -</span><span id="L-168"><a href="#L-168"><span class="linenos">168</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="n">transform</span><span class="p">,</span> <span class="n">source_first</span><span class="p">)</span> -</span><span id="L-169"><a href="#L-169"><span class="linenos">169</span></a> -</span><span id="L-170"><a href="#L-170"><span class="linenos">170</span></a> <span class="k">return</span> <span class="n">node</span> -</span><span id="L-171"><a href="#L-171"><span class="linenos">171</span></a> -</span><span id="L-172"><a href="#L-172"><span class="linenos">172</span></a> <span class="k">for</span> <span class="n">select</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">selects</span><span class="p">:</span> -</span><span id="L-173"><a href="#L-173"><span class="linenos">173</span></a> <span class="n">transform</span><span class="p">(</span><span class="n">select</span><span class="p">)</span> +</span><span id="L-145"><a href="#L-145"><span class="linenos">145</span></a><span class="k">def</span> <span class="nf">_expand_alias_refs</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="n">resolver</span><span class="p">):</span> +</span><span id="L-146"><a href="#L-146"><span class="linenos">146</span></a> <span class="n">selects</span> <span class="o">=</span> <span class="p">{}</span> +</span><span id="L-147"><a href="#L-147"><span class="linenos">147</span></a> +</span><span id="L-148"><a href="#L-148"><span class="linenos">148</span></a> <span class="c1"># Replace references to select aliases</span> +</span><span id="L-149"><a href="#L-149"><span class="linenos">149</span></a> <span class="k">def</span> <span class="nf">transform</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">source_first</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span> +</span><span id="L-150"><a href="#L-150"><span class="linenos">150</span></a> <span class="k">if</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">Column</span><span class="p">)</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">node</span><span class="o">.</span><span class="n">table</span><span class="p">:</span> +</span><span id="L-151"><a href="#L-151"><span class="linenos">151</span></a> <span class="n">table</span> <span class="o">=</span> <span class="n">resolver</span><span class="o">.</span><span class="n">get_table</span><span class="p">(</span><span class="n">node</span><span class="o">.</span><span class="n">name</span><span class="p">)</span> +</span><span id="L-152"><a href="#L-152"><span class="linenos">152</span></a> +</span><span id="L-153"><a href="#L-153"><span class="linenos">153</span></a> <span class="c1"># Source columns get priority over select aliases</span> +</span><span id="L-154"><a href="#L-154"><span class="linenos">154</span></a> <span class="k">if</span> <span class="n">source_first</span> <span class="ow">and</span> <span class="n">table</span><span class="p">:</span> +</span><span id="L-155"><a href="#L-155"><span class="linenos">155</span></a> <span class="n">node</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"table"</span><span class="p">,</span> <span class="n">table</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">node</span> +</span><span id="L-157"><a href="#L-157"><span class="linenos">157</span></a> +</span><span id="L-158"><a href="#L-158"><span class="linenos">158</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">selects</span><span class="p">:</span> +</span><span id="L-159"><a href="#L-159"><span class="linenos">159</span></a> <span class="k">for</span> <span class="n">s</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">selects</span><span class="p">:</span> +</span><span id="L-160"><a href="#L-160"><span class="linenos">160</span></a> <span class="n">selects</span><span class="p">[</span><span class="n">s</span><span class="o">.</span><span class="n">alias_or_name</span><span class="p">]</span> <span class="o">=</span> <span class="n">s</span> +</span><span id="L-161"><a href="#L-161"><span class="linenos">161</span></a> <span class="n">select</span> <span class="o">=</span> <span class="n">selects</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">node</span><span class="o">.</span><span class="n">name</span><span class="p">)</span> +</span><span id="L-162"><a href="#L-162"><span class="linenos">162</span></a> +</span><span id="L-163"><a href="#L-163"><span class="linenos">163</span></a> <span class="k">if</span> <span class="n">select</span><span class="p">:</span> +</span><span id="L-164"><a href="#L-164"><span class="linenos">164</span></a> <span class="n">scope</span><span class="o">.</span><span class="n">clear_cache</span><span class="p">()</span> +</span><span id="L-165"><a href="#L-165"><span class="linenos">165</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">select</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Alias</span><span class="p">):</span> +</span><span id="L-166"><a href="#L-166"><span class="linenos">166</span></a> <span class="n">select</span> <span class="o">=</span> <span class="n">select</span><span class="o">.</span><span class="n">this</span> +</span><span id="L-167"><a href="#L-167"><span class="linenos">167</span></a> <span class="k">return</span> <span class="n">select</span><span class="o">.</span><span class="n">copy</span><span class="p">()</span> +</span><span id="L-168"><a href="#L-168"><span class="linenos">168</span></a> +</span><span id="L-169"><a href="#L-169"><span class="linenos">169</span></a> <span class="n">node</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"table"</span><span class="p">,</span> <span class="n">table</span><span class="p">)</span> +</span><span id="L-170"><a href="#L-170"><span class="linenos">170</span></a> <span class="k">elif</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">Expression</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">node</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Subqueryable</span><span class="p">):</span> +</span><span id="L-171"><a href="#L-171"><span class="linenos">171</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="n">transform</span><span class="p">,</span> <span class="n">source_first</span><span class="p">)</span> +</span><span id="L-172"><a href="#L-172"><span class="linenos">172</span></a> +</span><span id="L-173"><a href="#L-173"><span class="linenos">173</span></a> <span class="k">return</span> <span class="n">node</span> </span><span id="L-174"><a href="#L-174"><span class="linenos">174</span></a> -</span><span id="L-175"><a href="#L-175"><span class="linenos">175</span></a> <span class="k">for</span> <span class="n">modifier</span><span class="p">,</span> <span class="n">source_first</span> <span class="ow">in</span> <span class="p">(</span> -</span><span id="L-176"><a href="#L-176"><span class="linenos">176</span></a> <span class="p">(</span><span class="s2">"where"</span><span class="p">,</span> <span class="kc">True</span><span class="p">),</span> -</span><span id="L-177"><a href="#L-177"><span class="linenos">177</span></a> <span class="p">(</span><span class="s2">"group"</span><span class="p">,</span> <span class="kc">True</span><span class="p">),</span> -</span><span id="L-178"><a href="#L-178"><span class="linenos">178</span></a> <span class="p">(</span><span class="s2">"having"</span><span class="p">,</span> <span class="kc">False</span><span class="p">),</span> -</span><span id="L-179"><a href="#L-179"><span class="linenos">179</span></a> <span class="p">):</span> -</span><span id="L-180"><a href="#L-180"><span class="linenos">180</span></a> <span class="n">transform</span><span class="p">(</span><span class="n">scope</span><span class="o">.</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="n">modifier</span><span class="p">),</span> <span class="n">source_first</span><span class="o">=</span><span class="n">source_first</span><span class="p">)</span> -</span><span id="L-181"><a href="#L-181"><span class="linenos">181</span></a> -</span><span id="L-182"><a href="#L-182"><span class="linenos">182</span></a> -</span><span id="L-183"><a href="#L-183"><span class="linenos">183</span></a><span class="k">def</span> <span class="nf">_expand_group_by</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="n">resolver</span><span class="p">):</span> -</span><span id="L-184"><a href="#L-184"><span class="linenos">184</span></a> <span class="n">group</span> <span class="o">=</span> <span class="n">scope</span><span class="o">.</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">"group"</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="ow">not</span> <span class="n">group</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><span id="L-187"><a href="#L-187"><span class="linenos">187</span></a> -</span><span id="L-188"><a href="#L-188"><span class="linenos">188</span></a> <span class="n">group</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">_expand_positional_references</span><span class="p">(</span><span class="n">scope</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="L-189"><a href="#L-189"><span class="linenos">189</span></a> <span class="n">scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"group"</span><span class="p">,</span> <span class="n">group</span><span class="p">)</span> +</span><span id="L-175"><a href="#L-175"><span class="linenos">175</span></a> <span class="k">for</span> <span class="n">select</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">selects</span><span class="p">:</span> +</span><span id="L-176"><a href="#L-176"><span class="linenos">176</span></a> <span class="n">transform</span><span class="p">(</span><span class="n">select</span><span class="p">)</span> +</span><span id="L-177"><a href="#L-177"><span class="linenos">177</span></a> +</span><span id="L-178"><a href="#L-178"><span class="linenos">178</span></a> <span class="k">for</span> <span class="n">modifier</span><span class="p">,</span> <span class="n">source_first</span> <span class="ow">in</span> <span class="p">(</span> +</span><span id="L-179"><a href="#L-179"><span class="linenos">179</span></a> <span class="p">(</span><span class="s2">"where"</span><span class="p">,</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="p">(</span><span class="s2">"group"</span><span class="p">,</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="p">(</span><span class="s2">"having"</span><span class="p">,</span> <span class="kc">False</span><span class="p">),</span> +</span><span id="L-182"><a href="#L-182"><span class="linenos">182</span></a> <span class="p">):</span> +</span><span id="L-183"><a href="#L-183"><span class="linenos">183</span></a> <span class="n">transform</span><span class="p">(</span><span class="n">scope</span><span class="o">.</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="n">modifier</span><span class="p">),</span> <span class="n">source_first</span><span class="o">=</span><span class="n">source_first</span><span class="p">)</span> +</span><span id="L-184"><a href="#L-184"><span class="linenos">184</span></a> +</span><span id="L-185"><a href="#L-185"><span class="linenos">185</span></a> +</span><span id="L-186"><a href="#L-186"><span class="linenos">186</span></a><span class="k">def</span> <span class="nf">_expand_group_by</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="n">resolver</span><span class="p">):</span> +</span><span id="L-187"><a href="#L-187"><span class="linenos">187</span></a> <span class="n">group</span> <span class="o">=</span> <span class="n">scope</span><span class="o">.</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">"group"</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="ow">not</span> <span class="n">group</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><span id="L-190"><a href="#L-190"><span class="linenos">190</span></a> -</span><span id="L-191"><a href="#L-191"><span class="linenos">191</span></a> -</span><span id="L-192"><a href="#L-192"><span class="linenos">192</span></a><span class="k">def</span> <span class="nf">_expand_order_by</span><span class="p">(</span><span class="n">scope</span><span class="p">):</span> -</span><span id="L-193"><a href="#L-193"><span class="linenos">193</span></a> <span class="n">order</span> <span class="o">=</span> <span class="n">scope</span><span class="o">.</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">"order"</span><span class="p">)</span> -</span><span id="L-194"><a href="#L-194"><span class="linenos">194</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">order</span><span class="p">:</span> -</span><span id="L-195"><a href="#L-195"><span class="linenos">195</span></a> <span class="k">return</span> -</span><span id="L-196"><a href="#L-196"><span class="linenos">196</span></a> -</span><span id="L-197"><a href="#L-197"><span class="linenos">197</span></a> <span class="n">ordereds</span> <span class="o">=</span> <span class="n">order</span><span class="o">.</span><span class="n">expressions</span> -</span><span id="L-198"><a href="#L-198"><span class="linenos">198</span></a> <span class="k">for</span> <span class="n">ordered</span><span class="p">,</span> <span class="n">new_expression</span> <span class="ow">in</span> <span class="nb">zip</span><span class="p">(</span> -</span><span id="L-199"><a href="#L-199"><span class="linenos">199</span></a> <span class="n">ordereds</span><span class="p">,</span> -</span><span id="L-200"><a href="#L-200"><span class="linenos">200</span></a> <span class="n">_expand_positional_references</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="p">(</span><span class="n">o</span><span class="o">.</span><span class="n">this</span> <span class="k">for</span> <span class="n">o</span> <span class="ow">in</span> <span class="n">ordereds</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><span id="L-202"><a href="#L-202"><span class="linenos">202</span></a> <span class="n">ordered</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"this"</span><span class="p">,</span> <span class="n">new_expression</span><span class="p">)</span> -</span><span id="L-203"><a href="#L-203"><span class="linenos">203</span></a> -</span><span id="L-204"><a href="#L-204"><span class="linenos">204</span></a> -</span><span id="L-205"><a href="#L-205"><span class="linenos">205</span></a><span class="k">def</span> <span class="nf">_expand_positional_references</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="n">expressions</span><span class="p">):</span> -</span><span id="L-206"><a href="#L-206"><span class="linenos">206</span></a> <span class="n">new_nodes</span> <span class="o">=</span> <span class="p">[]</span> -</span><span id="L-207"><a href="#L-207"><span class="linenos">207</span></a> <span class="k">for</span> <span class="n">node</span> <span class="ow">in</span> <span class="n">expressions</span><span class="p">:</span> -</span><span id="L-208"><a href="#L-208"><span class="linenos">208</span></a> <span class="k">if</span> <span class="n">node</span><span class="o">.</span><span class="n">is_int</span><span class="p">:</span> -</span><span id="L-209"><a href="#L-209"><span class="linenos">209</span></a> <span class="k">try</span><span class="p">:</span> -</span><span id="L-210"><a href="#L-210"><span class="linenos">210</span></a> <span class="n">select</span> <span class="o">=</span> <span class="n">scope</span><span class="o">.</span><span class="n">selects</span><span class="p">[</span><span class="nb">int</span><span class="p">(</span><span class="n">node</span><span class="o">.</span><span class="n">name</span><span class="p">)</span> <span class="o">-</span> <span class="mi">1</span><span class="p">]</span> -</span><span id="L-211"><a href="#L-211"><span class="linenos">211</span></a> <span class="k">except</span> <span class="ne">IndexError</span><span class="p">:</span> -</span><span id="L-212"><a href="#L-212"><span class="linenos">212</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Unknown output column: </span><span class="si">{</span><span class="n">node</span><span class="o">.</span><span class="n">name</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> -</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">select</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Alias</span><span class="p">):</span> -</span><span id="L-214"><a href="#L-214"><span class="linenos">214</span></a> <span class="n">select</span> <span class="o">=</span> <span class="n">select</span><span class="o">.</span><span class="n">this</span> -</span><span id="L-215"><a href="#L-215"><span class="linenos">215</span></a> <span class="n">new_nodes</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">select</span><span class="o">.</span><span class="n">copy</span><span class="p">())</span> -</span><span id="L-216"><a href="#L-216"><span class="linenos">216</span></a> <span class="n">scope</span><span class="o">.</span><span class="n">clear_cache</span><span class="p">()</span> -</span><span id="L-217"><a href="#L-217"><span class="linenos">217</span></a> <span class="k">else</span><span class="p">:</span> -</span><span id="L-218"><a href="#L-218"><span class="linenos">218</span></a> <span class="n">new_nodes</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">node</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="k">return</span> <span class="n">new_nodes</span> -</span><span id="L-221"><a href="#L-221"><span class="linenos">221</span></a> +</span><span id="L-191"><a href="#L-191"><span class="linenos">191</span></a> <span class="n">group</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">_expand_positional_references</span><span class="p">(</span><span class="n">scope</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="L-192"><a href="#L-192"><span class="linenos">192</span></a> <span class="n">scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"group"</span><span class="p">,</span> <span class="n">group</span><span class="p">)</span> +</span><span id="L-193"><a href="#L-193"><span class="linenos">193</span></a> +</span><span id="L-194"><a href="#L-194"><span class="linenos">194</span></a> +</span><span id="L-195"><a href="#L-195"><span class="linenos">195</span></a><span class="k">def</span> <span class="nf">_expand_order_by</span><span class="p">(</span><span class="n">scope</span><span class="p">):</span> +</span><span id="L-196"><a href="#L-196"><span class="linenos">196</span></a> <span class="n">order</span> <span class="o">=</span> <span class="n">scope</span><span class="o">.</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">"order"</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="ow">not</span> <span class="n">order</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><span id="L-199"><a href="#L-199"><span class="linenos">199</span></a> +</span><span id="L-200"><a href="#L-200"><span class="linenos">200</span></a> <span class="n">ordereds</span> <span class="o">=</span> <span class="n">order</span><span class="o">.</span><span class="n">expressions</span> +</span><span id="L-201"><a href="#L-201"><span class="linenos">201</span></a> <span class="k">for</span> <span class="n">ordered</span><span class="p">,</span> <span class="n">new_expression</span> <span class="ow">in</span> <span class="nb">zip</span><span class="p">(</span> +</span><span id="L-202"><a href="#L-202"><span class="linenos">202</span></a> <span class="n">ordereds</span><span class="p">,</span> +</span><span id="L-203"><a href="#L-203"><span class="linenos">203</span></a> <span class="n">_expand_positional_references</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="p">(</span><span class="n">o</span><span class="o">.</span><span class="n">this</span> <span class="k">for</span> <span class="n">o</span> <span class="ow">in</span> <span class="n">ordereds</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="n">ordered</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"this"</span><span class="p">,</span> <span class="n">new_expression</span><span class="p">)</span> +</span><span id="L-206"><a href="#L-206"><span class="linenos">206</span></a> +</span><span id="L-207"><a href="#L-207"><span class="linenos">207</span></a> +</span><span id="L-208"><a href="#L-208"><span class="linenos">208</span></a><span class="k">def</span> <span class="nf">_expand_positional_references</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="n">expressions</span><span class="p">):</span> +</span><span id="L-209"><a href="#L-209"><span class="linenos">209</span></a> <span class="n">new_nodes</span> <span class="o">=</span> <span class="p">[]</span> +</span><span id="L-210"><a href="#L-210"><span class="linenos">210</span></a> <span class="k">for</span> <span class="n">node</span> <span class="ow">in</span> <span class="n">expressions</span><span class="p">:</span> +</span><span id="L-211"><a href="#L-211"><span class="linenos">211</span></a> <span class="k">if</span> <span class="n">node</span><span class="o">.</span><span class="n">is_int</span><span class="p">:</span> +</span><span id="L-212"><a href="#L-212"><span class="linenos">212</span></a> <span class="k">try</span><span class="p">:</span> +</span><span id="L-213"><a href="#L-213"><span class="linenos">213</span></a> <span class="n">select</span> <span class="o">=</span> <span class="n">scope</span><span class="o">.</span><span class="n">selects</span><span class="p">[</span><span class="nb">int</span><span class="p">(</span><span class="n">node</span><span class="o">.</span><span class="n">name</span><span class="p">)</span> <span class="o">-</span> <span class="mi">1</span><span class="p">]</span> +</span><span id="L-214"><a href="#L-214"><span class="linenos">214</span></a> <span class="k">except</span> <span class="ne">IndexError</span><span class="p">:</span> +</span><span id="L-215"><a href="#L-215"><span class="linenos">215</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Unknown output column: </span><span class="si">{</span><span class="n">node</span><span class="o">.</span><span class="n">name</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> +</span><span id="L-216"><a href="#L-216"><span class="linenos">216</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">select</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Alias</span><span class="p">):</span> +</span><span id="L-217"><a href="#L-217"><span class="linenos">217</span></a> <span class="n">select</span> <span class="o">=</span> <span class="n">select</span><span class="o">.</span><span class="n">this</span> +</span><span id="L-218"><a href="#L-218"><span class="linenos">218</span></a> <span class="n">new_nodes</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">select</span><span class="o">.</span><span class="n">copy</span><span class="p">())</span> +</span><span id="L-219"><a href="#L-219"><span class="linenos">219</span></a> <span class="n">scope</span><span class="o">.</span><span class="n">clear_cache</span><span class="p">()</span> +</span><span id="L-220"><a href="#L-220"><span class="linenos">220</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="L-221"><a href="#L-221"><span class="linenos">221</span></a> <span class="n">new_nodes</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> </span><span id="L-222"><a href="#L-222"><span class="linenos">222</span></a> -</span><span id="L-223"><a href="#L-223"><span class="linenos">223</span></a><span class="k">def</span> <span class="nf">_qualify_columns</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="n">resolver</span><span class="p">):</span> -</span><span id="L-224"><a href="#L-224"><span class="linenos">224</span></a><span class="w"> </span><span class="sd">"""Disambiguate columns, ensuring each column specifies a source"""</span> -</span><span id="L-225"><a href="#L-225"><span class="linenos">225</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">columns</span><span class="p">:</span> -</span><span id="L-226"><a href="#L-226"><span class="linenos">226</span></a> <span class="n">column_table</span> <span class="o">=</span> <span class="n">column</span><span class="o">.</span><span class="n">table</span> -</span><span id="L-227"><a href="#L-227"><span class="linenos">227</span></a> <span class="n">column_name</span> <span class="o">=</span> <span class="n">column</span><span class="o">.</span><span class="n">name</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="k">if</span> <span class="n">column_table</span> <span class="ow">and</span> <span class="n">column_table</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">:</span> -</span><span id="L-230"><a href="#L-230"><span class="linenos">230</span></a> <span class="n">source_columns</span> <span class="o">=</span> <span class="n">resolver</span><span class="o">.</span><span class="n">get_source_columns</span><span class="p">(</span><span class="n">column_table</span><span class="p">)</span> -</span><span id="L-231"><a href="#L-231"><span class="linenos">231</span></a> <span class="k">if</span> <span class="n">source_columns</span> <span class="ow">and</span> <span class="n">column_name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">source_columns</span> <span class="ow">and</span> <span class="s2">"*"</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">source_columns</span><span class="p">:</span> -</span><span id="L-232"><a href="#L-232"><span class="linenos">232</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Unknown column: </span><span class="si">{</span><span class="n">column_name</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> -</span><span id="L-233"><a href="#L-233"><span class="linenos">233</span></a> -</span><span id="L-234"><a href="#L-234"><span class="linenos">234</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">column_table</span><span class="p">:</span> -</span><span id="L-235"><a href="#L-235"><span class="linenos">235</span></a> <span class="n">column_table</span> <span class="o">=</span> <span class="n">resolver</span><span class="o">.</span><span class="n">get_table</span><span class="p">(</span><span class="n">column_name</span><span class="p">)</span> +</span><span id="L-223"><a href="#L-223"><span class="linenos">223</span></a> <span class="k">return</span> <span class="n">new_nodes</span> +</span><span id="L-224"><a href="#L-224"><span class="linenos">224</span></a> +</span><span id="L-225"><a href="#L-225"><span class="linenos">225</span></a> +</span><span id="L-226"><a href="#L-226"><span class="linenos">226</span></a><span class="k">def</span> <span class="nf">_qualify_columns</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="n">resolver</span><span class="p">):</span> +</span><span id="L-227"><a href="#L-227"><span class="linenos">227</span></a><span class="w"> </span><span class="sd">"""Disambiguate columns, ensuring each column specifies a source"""</span> +</span><span id="L-228"><a href="#L-228"><span class="linenos">228</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">columns</span><span class="p">:</span> +</span><span id="L-229"><a href="#L-229"><span class="linenos">229</span></a> <span class="n">column_table</span> <span class="o">=</span> <span class="n">column</span><span class="o">.</span><span class="n">table</span> +</span><span id="L-230"><a href="#L-230"><span class="linenos">230</span></a> <span class="n">column_name</span> <span class="o">=</span> <span class="n">column</span><span class="o">.</span><span class="n">name</span> +</span><span id="L-231"><a href="#L-231"><span class="linenos">231</span></a> +</span><span id="L-232"><a href="#L-232"><span class="linenos">232</span></a> <span class="k">if</span> <span class="n">column_table</span> <span class="ow">and</span> <span class="n">column_table</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">:</span> +</span><span id="L-233"><a href="#L-233"><span class="linenos">233</span></a> <span class="n">source_columns</span> <span class="o">=</span> <span class="n">resolver</span><span class="o">.</span><span class="n">get_source_columns</span><span class="p">(</span><span class="n">column_table</span><span class="p">)</span> +</span><span id="L-234"><a href="#L-234"><span class="linenos">234</span></a> <span class="k">if</span> <span class="n">source_columns</span> <span class="ow">and</span> <span class="n">column_name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">source_columns</span> <span class="ow">and</span> <span class="s2">"*"</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">source_columns</span><span class="p">:</span> +</span><span id="L-235"><a href="#L-235"><span class="linenos">235</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Unknown column: </span><span class="si">{</span><span class="n">column_name</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> </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="c1"># column_table can be a '' because bigquery unnest has no table alias</span> -</span><span id="L-238"><a href="#L-238"><span class="linenos">238</span></a> <span class="k">if</span> <span class="n">column_table</span><span class="p">:</span> -</span><span id="L-239"><a href="#L-239"><span class="linenos">239</span></a> <span class="n">column</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"table"</span><span class="p">,</span> <span class="n">column_table</span><span class="p">)</span> -</span><span id="L-240"><a href="#L-240"><span class="linenos">240</span></a> <span class="k">elif</span> <span class="n">column_table</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">:</span> -</span><span id="L-241"><a href="#L-241"><span class="linenos">241</span></a> <span class="c1"># structs are used like tables (e.g. "struct"."field"), so they need to be qualified</span> -</span><span id="L-242"><a href="#L-242"><span class="linenos">242</span></a> <span class="c1"># separately and represented as dot(dot(...(<table>.<column>, field1), field2, ...))</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">root</span><span class="p">,</span> <span class="o">*</span><span class="n">parts</span> <span class="o">=</span> <span class="n">column</span><span class="o">.</span><span class="n">parts</span> -</span><span id="L-245"><a href="#L-245"><span class="linenos">245</span></a> -</span><span id="L-246"><a href="#L-246"><span class="linenos">246</span></a> <span class="k">if</span> <span class="n">root</span><span class="o">.</span><span class="n">name</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">:</span> -</span><span id="L-247"><a href="#L-247"><span class="linenos">247</span></a> <span class="c1"># struct is already qualified, but we still need to change the AST representation</span> -</span><span id="L-248"><a href="#L-248"><span class="linenos">248</span></a> <span class="n">column_table</span> <span class="o">=</span> <span class="n">root</span> -</span><span id="L-249"><a href="#L-249"><span class="linenos">249</span></a> <span class="n">root</span><span class="p">,</span> <span class="o">*</span><span class="n">parts</span> <span class="o">=</span> <span class="n">parts</span> -</span><span id="L-250"><a href="#L-250"><span class="linenos">250</span></a> <span class="k">else</span><span class="p">:</span> -</span><span id="L-251"><a href="#L-251"><span class="linenos">251</span></a> <span class="n">column_table</span> <span class="o">=</span> <span class="n">resolver</span><span class="o">.</span><span class="n">get_table</span><span class="p">(</span><span class="n">root</span><span class="o">.</span><span class="n">name</span><span class="p">)</span> -</span><span id="L-252"><a href="#L-252"><span class="linenos">252</span></a> -</span><span id="L-253"><a href="#L-253"><span class="linenos">253</span></a> <span class="k">if</span> <span class="n">column_table</span><span class="p">:</span> -</span><span id="L-254"><a href="#L-254"><span class="linenos">254</span></a> <span class="n">column</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">Dot</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">column</span><span class="p">(</span><span class="n">root</span><span class="p">,</span> <span class="n">table</span><span class="o">=</span><span class="n">column_table</span><span class="p">),</span> <span class="o">*</span><span class="n">parts</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="ow">not</span> <span class="n">column_table</span><span class="p">:</span> +</span><span id="L-238"><a href="#L-238"><span class="linenos">238</span></a> <span class="n">column_table</span> <span class="o">=</span> <span class="n">resolver</span><span class="o">.</span><span class="n">get_table</span><span class="p">(</span><span class="n">column_name</span><span class="p">)</span> +</span><span id="L-239"><a href="#L-239"><span class="linenos">239</span></a> +</span><span id="L-240"><a href="#L-240"><span class="linenos">240</span></a> <span class="c1"># column_table can be a '' because bigquery unnest has no table alias</span> +</span><span id="L-241"><a href="#L-241"><span class="linenos">241</span></a> <span class="k">if</span> <span class="n">column_table</span><span class="p">:</span> +</span><span id="L-242"><a href="#L-242"><span class="linenos">242</span></a> <span class="n">column</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"table"</span><span class="p">,</span> <span class="n">column_table</span><span class="p">)</span> +</span><span id="L-243"><a href="#L-243"><span class="linenos">243</span></a> <span class="k">elif</span> <span class="n">column_table</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">:</span> +</span><span id="L-244"><a href="#L-244"><span class="linenos">244</span></a> <span class="c1"># structs are used like tables (e.g. "struct"."field"), so they need to be qualified</span> +</span><span id="L-245"><a href="#L-245"><span class="linenos">245</span></a> <span class="c1"># separately and represented as dot(dot(...(<table>.<column>, field1), field2, ...))</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="n">root</span><span class="p">,</span> <span class="o">*</span><span class="n">parts</span> <span class="o">=</span> <span class="n">column</span><span class="o">.</span><span class="n">parts</span> +</span><span id="L-248"><a href="#L-248"><span class="linenos">248</span></a> +</span><span id="L-249"><a href="#L-249"><span class="linenos">249</span></a> <span class="k">if</span> <span class="n">root</span><span class="o">.</span><span class="n">name</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">:</span> +</span><span id="L-250"><a href="#L-250"><span class="linenos">250</span></a> <span class="c1"># struct is already qualified, but we still need to change the AST representation</span> +</span><span id="L-251"><a href="#L-251"><span class="linenos">251</span></a> <span class="n">column_table</span> <span class="o">=</span> <span class="n">root</span> +</span><span id="L-252"><a href="#L-252"><span class="linenos">252</span></a> <span class="n">root</span><span class="p">,</span> <span class="o">*</span><span class="n">parts</span> <span class="o">=</span> <span class="n">parts</span> +</span><span id="L-253"><a href="#L-253"><span class="linenos">253</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="L-254"><a href="#L-254"><span class="linenos">254</span></a> <span class="n">column_table</span> <span class="o">=</span> <span class="n">resolver</span><span class="o">.</span><span class="n">get_table</span><span class="p">(</span><span class="n">root</span><span class="o">.</span><span class="n">name</span><span class="p">)</span> </span><span id="L-255"><a href="#L-255"><span class="linenos">255</span></a> -</span><span id="L-256"><a href="#L-256"><span class="linenos">256</span></a> <span class="n">columns_missing_from_scope</span> <span class="o">=</span> <span class="p">[]</span> -</span><span id="L-257"><a href="#L-257"><span class="linenos">257</span></a> -</span><span id="L-258"><a href="#L-258"><span class="linenos">258</span></a> <span class="c1"># Determine whether each reference in the order by clause is to a column or an alias.</span> -</span><span id="L-259"><a href="#L-259"><span class="linenos">259</span></a> <span class="n">order</span> <span class="o">=</span> <span class="n">scope</span><span class="o">.</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">"order"</span><span class="p">)</span> +</span><span id="L-256"><a href="#L-256"><span class="linenos">256</span></a> <span class="k">if</span> <span class="n">column_table</span><span class="p">:</span> +</span><span id="L-257"><a href="#L-257"><span class="linenos">257</span></a> <span class="n">column</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">Dot</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">column</span><span class="p">(</span><span class="n">root</span><span class="p">,</span> <span class="n">table</span><span class="o">=</span><span class="n">column_table</span><span class="p">),</span> <span class="o">*</span><span class="n">parts</span><span class="p">]))</span> +</span><span id="L-258"><a href="#L-258"><span class="linenos">258</span></a> +</span><span id="L-259"><a href="#L-259"><span class="linenos">259</span></a> <span class="n">columns_missing_from_scope</span> <span class="o">=</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">order</span><span class="p">:</span> -</span><span id="L-262"><a href="#L-262"><span class="linenos">262</span></a> <span class="k">for</span> <span class="n">ordered</span> <span class="ow">in</span> <span class="n">order</span><span class="o">.</span><span class="n">expressions</span><span class="p">:</span> -</span><span id="L-263"><a href="#L-263"><span class="linenos">263</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">ordered</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">Column</span><span class="p">):</span> -</span><span id="L-264"><a href="#L-264"><span class="linenos">264</span></a> <span class="k">if</span> <span class="p">(</span> -</span><span id="L-265"><a href="#L-265"><span class="linenos">265</span></a> <span class="ow">not</span> <span class="n">column</span><span class="o">.</span><span class="n">table</span> -</span><span id="L-266"><a href="#L-266"><span class="linenos">266</span></a> <span class="ow">and</span> <span class="n">column</span><span class="o">.</span><span class="n">parent</span> <span class="ow">is</span> <span class="ow">not</span> <span class="n">ordered</span> -</span><span id="L-267"><a href="#L-267"><span class="linenos">267</span></a> <span class="ow">and</span> <span class="n">column</span><span class="o">.</span><span class="n">name</span> <span class="ow">in</span> <span class="n">resolver</span><span class="o">.</span><span class="n">all_columns</span> -</span><span id="L-268"><a href="#L-268"><span class="linenos">268</span></a> <span class="p">):</span> -</span><span id="L-269"><a href="#L-269"><span class="linenos">269</span></a> <span class="n">columns_missing_from_scope</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">column</span><span class="p">)</span> -</span><span id="L-270"><a href="#L-270"><span class="linenos">270</span></a> -</span><span id="L-271"><a href="#L-271"><span class="linenos">271</span></a> <span class="c1"># Determine whether each reference in the having clause is to a column or an alias.</span> -</span><span id="L-272"><a href="#L-272"><span class="linenos">272</span></a> <span class="n">having</span> <span class="o">=</span> <span class="n">scope</span><span class="o">.</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">"having"</span><span class="p">)</span> +</span><span id="L-261"><a href="#L-261"><span class="linenos">261</span></a> <span class="c1"># Determine whether each reference in the order by clause is to a column or an alias.</span> +</span><span id="L-262"><a href="#L-262"><span class="linenos">262</span></a> <span class="n">order</span> <span class="o">=</span> <span class="n">scope</span><span class="o">.</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">"order"</span><span class="p">)</span> +</span><span id="L-263"><a href="#L-263"><span class="linenos">263</span></a> +</span><span id="L-264"><a href="#L-264"><span class="linenos">264</span></a> <span class="k">if</span> <span class="n">order</span><span class="p">:</span> +</span><span id="L-265"><a href="#L-265"><span class="linenos">265</span></a> <span class="k">for</span> <span class="n">ordered</span> <span class="ow">in</span> <span class="n">order</span><span class="o">.</span><span class="n">expressions</span><span class="p">:</span> +</span><span id="L-266"><a href="#L-266"><span class="linenos">266</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">ordered</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">Column</span><span class="p">):</span> +</span><span id="L-267"><a href="#L-267"><span class="linenos">267</span></a> <span class="k">if</span> <span class="p">(</span> +</span><span id="L-268"><a href="#L-268"><span class="linenos">268</span></a> <span class="ow">not</span> <span class="n">column</span><span class="o">.</span><span class="n">table</span> +</span><span id="L-269"><a href="#L-269"><span class="linenos">269</span></a> <span class="ow">and</span> <span class="n">column</span><span class="o">.</span><span class="n">parent</span> <span class="ow">is</span> <span class="ow">not</span> <span class="n">ordered</span> +</span><span id="L-270"><a href="#L-270"><span class="linenos">270</span></a> <span class="ow">and</span> <span class="n">column</span><span class="o">.</span><span class="n">name</span> <span class="ow">in</span> <span class="n">resolver</span><span class="o">.</span><span class="n">all_columns</span> +</span><span id="L-271"><a href="#L-271"><span class="linenos">271</span></a> <span class="p">):</span> +</span><span id="L-272"><a href="#L-272"><span class="linenos">272</span></a> <span class="n">columns_missing_from_scope</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">column</span><span class="p">)</span> </span><span id="L-273"><a href="#L-273"><span class="linenos">273</span></a> -</span><span id="L-274"><a href="#L-274"><span class="linenos">274</span></a> <span class="k">if</span> <span class="n">having</span><span class="p">:</span> -</span><span id="L-275"><a href="#L-275"><span class="linenos">275</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">having</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">Column</span><span class="p">):</span> -</span><span id="L-276"><a href="#L-276"><span class="linenos">276</span></a> <span class="k">if</span> <span class="p">(</span> -</span><span id="L-277"><a href="#L-277"><span class="linenos">277</span></a> <span class="ow">not</span> <span class="n">column</span><span class="o">.</span><span class="n">table</span> -</span><span id="L-278"><a href="#L-278"><span class="linenos">278</span></a> <span class="ow">and</span> <span class="n">column</span><span class="o">.</span><span class="n">find_ancestor</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">AggFunc</span><span class="p">)</span> -</span><span id="L-279"><a href="#L-279"><span class="linenos">279</span></a> <span class="ow">and</span> <span class="n">column</span><span class="o">.</span><span class="n">name</span> <span class="ow">in</span> <span class="n">resolver</span><span class="o">.</span><span class="n">all_columns</span> -</span><span id="L-280"><a href="#L-280"><span class="linenos">280</span></a> <span class="p">):</span> -</span><span id="L-281"><a href="#L-281"><span class="linenos">281</span></a> <span class="n">columns_missing_from_scope</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">column</span><span class="p">)</span> -</span><span id="L-282"><a href="#L-282"><span class="linenos">282</span></a> -</span><span id="L-283"><a href="#L-283"><span class="linenos">283</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">columns_missing_from_scope</span><span class="p">:</span> -</span><span id="L-284"><a href="#L-284"><span class="linenos">284</span></a> <span class="n">column_table</span> <span class="o">=</span> <span class="n">resolver</span><span class="o">.</span><span class="n">get_table</span><span class="p">(</span><span class="n">column</span><span class="o">.</span><span class="n">name</span><span class="p">)</span> +</span><span id="L-274"><a href="#L-274"><span class="linenos">274</span></a> <span class="c1"># Determine whether each reference in the having clause is to a column or an alias.</span> +</span><span id="L-275"><a href="#L-275"><span class="linenos">275</span></a> <span class="n">having</span> <span class="o">=</span> <span class="n">scope</span><span class="o">.</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">"having"</span><span class="p">)</span> +</span><span id="L-276"><a href="#L-276"><span class="linenos">276</span></a> +</span><span id="L-277"><a href="#L-277"><span class="linenos">277</span></a> <span class="k">if</span> <span class="n">having</span><span class="p">:</span> +</span><span id="L-278"><a href="#L-278"><span class="linenos">278</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">having</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">Column</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="p">(</span> +</span><span id="L-280"><a href="#L-280"><span class="linenos">280</span></a> <span class="ow">not</span> <span class="n">column</span><span class="o">.</span><span class="n">table</span> +</span><span id="L-281"><a href="#L-281"><span class="linenos">281</span></a> <span class="ow">and</span> <span class="n">column</span><span class="o">.</span><span class="n">find_ancestor</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">AggFunc</span><span class="p">)</span> +</span><span id="L-282"><a href="#L-282"><span class="linenos">282</span></a> <span class="ow">and</span> <span class="n">column</span><span class="o">.</span><span class="n">name</span> <span class="ow">in</span> <span class="n">resolver</span><span class="o">.</span><span class="n">all_columns</span> +</span><span id="L-283"><a href="#L-283"><span class="linenos">283</span></a> <span class="p">):</span> +</span><span id="L-284"><a href="#L-284"><span class="linenos">284</span></a> <span class="n">columns_missing_from_scope</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">column</span><span class="p">)</span> </span><span id="L-285"><a href="#L-285"><span class="linenos">285</span></a> -</span><span id="L-286"><a href="#L-286"><span class="linenos">286</span></a> <span class="k">if</span> <span class="n">column_table</span><span class="p">:</span> -</span><span id="L-287"><a href="#L-287"><span class="linenos">287</span></a> <span class="n">column</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"table"</span><span class="p">,</span> <span class="n">column_table</span><span class="p">)</span> +</span><span id="L-286"><a href="#L-286"><span class="linenos">286</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">columns_missing_from_scope</span><span class="p">:</span> +</span><span id="L-287"><a href="#L-287"><span class="linenos">287</span></a> <span class="n">column_table</span> <span class="o">=</span> <span class="n">resolver</span><span class="o">.</span><span class="n">get_table</span><span class="p">(</span><span class="n">column</span><span class="o">.</span><span class="n">name</span><span class="p">)</span> </span><span id="L-288"><a href="#L-288"><span class="linenos">288</span></a> -</span><span id="L-289"><a href="#L-289"><span class="linenos">289</span></a> -</span><span id="L-290"><a href="#L-290"><span class="linenos">290</span></a><span class="k">def</span> <span class="nf">_expand_stars</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="n">resolver</span><span class="p">,</span> <span class="n">using_column_tables</span><span class="p">):</span> -</span><span id="L-291"><a href="#L-291"><span class="linenos">291</span></a><span class="w"> </span><span class="sd">"""Expand stars to lists of column selections"""</span> +</span><span id="L-289"><a href="#L-289"><span class="linenos">289</span></a> <span class="k">if</span> <span class="n">column_table</span><span class="p">:</span> +</span><span id="L-290"><a href="#L-290"><span class="linenos">290</span></a> <span class="n">column</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"table"</span><span class="p">,</span> <span class="n">column_table</span><span class="p">)</span> +</span><span id="L-291"><a href="#L-291"><span class="linenos">291</span></a> </span><span id="L-292"><a href="#L-292"><span class="linenos">292</span></a> -</span><span id="L-293"><a href="#L-293"><span class="linenos">293</span></a> <span class="n">new_selections</span> <span class="o">=</span> <span class="p">[]</span> -</span><span id="L-294"><a href="#L-294"><span class="linenos">294</span></a> <span class="n">except_columns</span> <span class="o">=</span> <span class="p">{}</span> -</span><span id="L-295"><a href="#L-295"><span class="linenos">295</span></a> <span class="n">replace_columns</span> <span class="o">=</span> <span class="p">{}</span> -</span><span id="L-296"><a href="#L-296"><span class="linenos">296</span></a> <span class="n">coalesced_columns</span> <span class="o">=</span> <span class="nb">set</span><span class="p">()</span> -</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">for</span> <span class="n">expression</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">selects</span><span class="p">:</span> -</span><span id="L-299"><a href="#L-299"><span class="linenos">299</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">Star</span><span class="p">):</span> -</span><span id="L-300"><a href="#L-300"><span class="linenos">300</span></a> <span class="n">tables</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="p">)</span> -</span><span id="L-301"><a href="#L-301"><span class="linenos">301</span></a> <span class="n">_add_except_columns</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">tables</span><span class="p">,</span> <span class="n">except_columns</span><span class="p">)</span> -</span><span id="L-302"><a href="#L-302"><span class="linenos">302</span></a> <span class="n">_add_replace_columns</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">tables</span><span class="p">,</span> <span class="n">replace_columns</span><span class="p">)</span> -</span><span id="L-303"><a href="#L-303"><span class="linenos">303</span></a> <span class="k">elif</span> <span class="n">expression</span><span class="o">.</span><span class="n">is_star</span><span class="p">:</span> -</span><span id="L-304"><a href="#L-304"><span class="linenos">304</span></a> <span class="n">tables</span> <span class="o">=</span> <span class="p">[</span><span class="n">expression</span><span class="o">.</span><span class="n">table</span><span class="p">]</span> -</span><span id="L-305"><a href="#L-305"><span class="linenos">305</span></a> <span class="n">_add_except_columns</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">tables</span><span class="p">,</span> <span class="n">except_columns</span><span class="p">)</span> -</span><span id="L-306"><a href="#L-306"><span class="linenos">306</span></a> <span class="n">_add_replace_columns</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">tables</span><span class="p">,</span> <span class="n">replace_columns</span><span class="p">)</span> -</span><span id="L-307"><a href="#L-307"><span class="linenos">307</span></a> <span class="k">else</span><span class="p">:</span> -</span><span id="L-308"><a href="#L-308"><span class="linenos">308</span></a> <span class="n">new_selections</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span> -</span><span id="L-309"><a href="#L-309"><span class="linenos">309</span></a> <span class="k">continue</span> -</span><span id="L-310"><a href="#L-310"><span class="linenos">310</span></a> -</span><span id="L-311"><a href="#L-311"><span class="linenos">311</span></a> <span class="k">for</span> <span class="n">table</span> <span class="ow">in</span> <span class="n">tables</span><span class="p">:</span> -</span><span id="L-312"><a href="#L-312"><span class="linenos">312</span></a> <span class="k">if</span> <span class="n">table</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">:</span> -</span><span id="L-313"><a href="#L-313"><span class="linenos">313</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Unknown table: </span><span class="si">{</span><span class="n">table</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> -</span><span id="L-314"><a href="#L-314"><span class="linenos">314</span></a> <span class="n">columns</span> <span class="o">=</span> <span class="n">resolver</span><span class="o">.</span><span class="n">get_source_columns</span><span class="p">(</span><span class="n">table</span><span class="p">,</span> <span class="n">only_visible</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><span id="L-316"><a href="#L-316"><span class="linenos">316</span></a> <span class="k">if</span> <span class="n">columns</span> <span class="ow">and</span> <span class="s2">"*"</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">columns</span><span class="p">:</span> -</span><span id="L-317"><a href="#L-317"><span class="linenos">317</span></a> <span class="n">table_id</span> <span class="o">=</span> <span class="nb">id</span><span class="p">(</span><span class="n">table</span><span class="p">)</span> -</span><span id="L-318"><a href="#L-318"><span class="linenos">318</span></a> <span class="k">for</span> <span class="n">name</span> <span class="ow">in</span> <span class="n">columns</span><span class="p">:</span> -</span><span id="L-319"><a href="#L-319"><span class="linenos">319</span></a> <span class="k">if</span> <span class="n">name</span> <span class="ow">in</span> <span class="n">using_column_tables</span> <span class="ow">and</span> <span class="n">table</span> <span class="ow">in</span> <span class="n">using_column_tables</span><span class="p">[</span><span class="n">name</span><span class="p">]:</span> -</span><span id="L-320"><a href="#L-320"><span class="linenos">320</span></a> <span class="k">if</span> <span class="n">name</span> <span class="ow">in</span> <span class="n">coalesced_columns</span><span class="p">:</span> -</span><span id="L-321"><a href="#L-321"><span class="linenos">321</span></a> <span class="k">continue</span> -</span><span id="L-322"><a href="#L-322"><span class="linenos">322</span></a> -</span><span id="L-323"><a href="#L-323"><span class="linenos">323</span></a> <span class="n">coalesced_columns</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">name</span><span class="p">)</span> -</span><span id="L-324"><a href="#L-324"><span class="linenos">324</span></a> <span class="n">tables</span> <span class="o">=</span> <span class="n">using_column_tables</span><span class="p">[</span><span class="n">name</span><span class="p">]</span> -</span><span id="L-325"><a href="#L-325"><span class="linenos">325</span></a> <span class="n">coalesce</span> <span class="o">=</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="n">name</span><span class="p">,</span> <span class="n">table</span><span class="o">=</span><span class="n">table</span><span class="p">)</span> <span class="k">for</span> <span class="n">table</span> <span class="ow">in</span> <span class="n">tables</span><span class="p">]</span> -</span><span id="L-326"><a href="#L-326"><span class="linenos">326</span></a> -</span><span id="L-327"><a href="#L-327"><span class="linenos">327</span></a> <span class="n">new_selections</span><span class="o">.</span><span class="n">append</span><span class="p">(</span> -</span><span id="L-328"><a href="#L-328"><span class="linenos">328</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">alias_</span><span class="p">(</span> -</span><span id="L-329"><a href="#L-329"><span class="linenos">329</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Coalesce</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">coalesce</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">expressions</span><span class="o">=</span><span class="n">coalesce</span><span class="p">[</span><span class="mi">1</span><span class="p">:]),</span> <span class="n">alias</span><span class="o">=</span><span class="n">name</span> -</span><span id="L-330"><a href="#L-330"><span class="linenos">330</span></a> <span class="p">)</span> -</span><span id="L-331"><a href="#L-331"><span class="linenos">331</span></a> <span class="p">)</span> -</span><span id="L-332"><a href="#L-332"><span class="linenos">332</span></a> <span class="k">elif</span> <span class="n">name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">except_columns</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">table_id</span><span class="p">,</span> <span class="nb">set</span><span class="p">()):</span> -</span><span id="L-333"><a href="#L-333"><span class="linenos">333</span></a> <span class="n">alias_</span> <span class="o">=</span> <span class="n">replace_columns</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">table_id</span><span class="p">,</span> <span class="p">{})</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="n">name</span><span class="p">)</span> -</span><span id="L-334"><a href="#L-334"><span class="linenos">334</span></a> <span class="n">column</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">column</span><span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="n">table</span><span class="p">)</span> -</span><span id="L-335"><a href="#L-335"><span class="linenos">335</span></a> <span class="n">new_selections</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">alias</span><span class="p">(</span><span class="n">column</span><span class="p">,</span> <span class="n">alias_</span><span class="p">)</span> <span class="k">if</span> <span class="n">alias_</span> <span class="o">!=</span> <span class="n">name</span> <span class="k">else</span> <span class="n">column</span><span class="p">)</span> -</span><span id="L-336"><a href="#L-336"><span class="linenos">336</span></a> <span class="k">else</span><span class="p">:</span> -</span><span id="L-337"><a href="#L-337"><span class="linenos">337</span></a> <span class="k">return</span> -</span><span id="L-338"><a href="#L-338"><span class="linenos">338</span></a> <span class="n">scope</span><span class="o">.</span><span class="n">expression</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">new_selections</span><span class="p">)</span> -</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><span id="L-341"><a href="#L-341"><span class="linenos">341</span></a><span class="k">def</span> <span class="nf">_add_except_columns</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">tables</span><span class="p">,</span> <span class="n">except_columns</span><span class="p">):</span> -</span><span id="L-342"><a href="#L-342"><span class="linenos">342</span></a> <span class="n">except_</span> <span class="o">=</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">"except"</span><span class="p">)</span> +</span><span id="L-293"><a href="#L-293"><span class="linenos">293</span></a><span class="k">def</span> <span class="nf">_expand_stars</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="n">resolver</span><span class="p">,</span> <span class="n">using_column_tables</span><span class="p">):</span> +</span><span id="L-294"><a href="#L-294"><span class="linenos">294</span></a><span class="w"> </span><span class="sd">"""Expand stars to lists of column selections"""</span> +</span><span id="L-295"><a href="#L-295"><span class="linenos">295</span></a> +</span><span id="L-296"><a href="#L-296"><span class="linenos">296</span></a> <span class="n">new_selections</span> <span class="o">=</span> <span class="p">[]</span> +</span><span id="L-297"><a href="#L-297"><span class="linenos">297</span></a> <span class="n">except_columns</span> <span class="o">=</span> <span class="p">{}</span> +</span><span id="L-298"><a href="#L-298"><span class="linenos">298</span></a> <span class="n">replace_columns</span> <span class="o">=</span> <span class="p">{}</span> +</span><span id="L-299"><a href="#L-299"><span class="linenos">299</span></a> <span class="n">coalesced_columns</span> <span class="o">=</span> <span class="nb">set</span><span class="p">()</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="k">for</span> <span class="n">expression</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">selects</span><span class="p">:</span> +</span><span id="L-302"><a href="#L-302"><span class="linenos">302</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">Star</span><span class="p">):</span> +</span><span id="L-303"><a href="#L-303"><span class="linenos">303</span></a> <span class="n">tables</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="p">)</span> +</span><span id="L-304"><a href="#L-304"><span class="linenos">304</span></a> <span class="n">_add_except_columns</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">tables</span><span class="p">,</span> <span class="n">except_columns</span><span class="p">)</span> +</span><span id="L-305"><a href="#L-305"><span class="linenos">305</span></a> <span class="n">_add_replace_columns</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">tables</span><span class="p">,</span> <span class="n">replace_columns</span><span class="p">)</span> +</span><span id="L-306"><a href="#L-306"><span class="linenos">306</span></a> <span class="k">elif</span> <span class="n">expression</span><span class="o">.</span><span class="n">is_star</span><span class="p">:</span> +</span><span id="L-307"><a href="#L-307"><span class="linenos">307</span></a> <span class="n">tables</span> <span class="o">=</span> <span class="p">[</span><span class="n">expression</span><span class="o">.</span><span class="n">table</span><span class="p">]</span> +</span><span id="L-308"><a href="#L-308"><span class="linenos">308</span></a> <span class="n">_add_except_columns</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">tables</span><span class="p">,</span> <span class="n">except_columns</span><span class="p">)</span> +</span><span id="L-309"><a href="#L-309"><span class="linenos">309</span></a> <span class="n">_add_replace_columns</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">tables</span><span class="p">,</span> <span class="n">replace_columns</span><span class="p">)</span> +</span><span id="L-310"><a href="#L-310"><span class="linenos">310</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="L-311"><a href="#L-311"><span class="linenos">311</span></a> <span class="n">new_selections</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span> +</span><span id="L-312"><a href="#L-312"><span class="linenos">312</span></a> <span class="k">continue</span> +</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">for</span> <span class="n">table</span> <span class="ow">in</span> <span class="n">tables</span><span class="p">:</span> +</span><span id="L-315"><a href="#L-315"><span class="linenos">315</span></a> <span class="k">if</span> <span class="n">table</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">:</span> +</span><span id="L-316"><a href="#L-316"><span class="linenos">316</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Unknown table: </span><span class="si">{</span><span class="n">table</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> +</span><span id="L-317"><a href="#L-317"><span class="linenos">317</span></a> <span class="n">columns</span> <span class="o">=</span> <span class="n">resolver</span><span class="o">.</span><span class="n">get_source_columns</span><span class="p">(</span><span class="n">table</span><span class="p">,</span> <span class="n">only_visible</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span> +</span><span id="L-318"><a href="#L-318"><span class="linenos">318</span></a> +</span><span id="L-319"><a href="#L-319"><span class="linenos">319</span></a> <span class="k">if</span> <span class="n">columns</span> <span class="ow">and</span> <span class="s2">"*"</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">columns</span><span class="p">:</span> +</span><span id="L-320"><a href="#L-320"><span class="linenos">320</span></a> <span class="n">table_id</span> <span class="o">=</span> <span class="nb">id</span><span class="p">(</span><span class="n">table</span><span class="p">)</span> +</span><span id="L-321"><a href="#L-321"><span class="linenos">321</span></a> <span class="k">for</span> <span class="n">name</span> <span class="ow">in</span> <span class="n">columns</span><span class="p">:</span> +</span><span id="L-322"><a href="#L-322"><span class="linenos">322</span></a> <span class="k">if</span> <span class="n">name</span> <span class="ow">in</span> <span class="n">using_column_tables</span> <span class="ow">and</span> <span class="n">table</span> <span class="ow">in</span> <span class="n">using_column_tables</span><span class="p">[</span><span class="n">name</span><span class="p">]:</span> +</span><span id="L-323"><a href="#L-323"><span class="linenos">323</span></a> <span class="k">if</span> <span class="n">name</span> <span class="ow">in</span> <span class="n">coalesced_columns</span><span class="p">:</span> +</span><span id="L-324"><a href="#L-324"><span class="linenos">324</span></a> <span class="k">continue</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="n">coalesced_columns</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">name</span><span class="p">)</span> +</span><span id="L-327"><a href="#L-327"><span class="linenos">327</span></a> <span class="n">tables</span> <span class="o">=</span> <span class="n">using_column_tables</span><span class="p">[</span><span class="n">name</span><span class="p">]</span> +</span><span id="L-328"><a href="#L-328"><span class="linenos">328</span></a> <span class="n">coalesce</span> <span class="o">=</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="n">name</span><span class="p">,</span> <span class="n">table</span><span class="o">=</span><span class="n">table</span><span class="p">)</span> <span class="k">for</span> <span class="n">table</span> <span class="ow">in</span> <span class="n">tables</span><span class="p">]</span> +</span><span id="L-329"><a href="#L-329"><span class="linenos">329</span></a> +</span><span id="L-330"><a href="#L-330"><span class="linenos">330</span></a> <span class="n">new_selections</span><span class="o">.</span><span class="n">append</span><span class="p">(</span> +</span><span id="L-331"><a href="#L-331"><span class="linenos">331</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">alias_</span><span class="p">(</span> +</span><span id="L-332"><a href="#L-332"><span class="linenos">332</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Coalesce</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">coalesce</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">expressions</span><span class="o">=</span><span class="n">coalesce</span><span class="p">[</span><span class="mi">1</span><span class="p">:]),</span> <span class="n">alias</span><span class="o">=</span><span class="n">name</span> +</span><span id="L-333"><a href="#L-333"><span class="linenos">333</span></a> <span class="p">)</span> +</span><span id="L-334"><a href="#L-334"><span class="linenos">334</span></a> <span class="p">)</span> +</span><span id="L-335"><a href="#L-335"><span class="linenos">335</span></a> <span class="k">elif</span> <span class="n">name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">except_columns</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">table_id</span><span class="p">,</span> <span class="nb">set</span><span class="p">()):</span> +</span><span id="L-336"><a href="#L-336"><span class="linenos">336</span></a> <span class="n">alias_</span> <span class="o">=</span> <span class="n">replace_columns</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">table_id</span><span class="p">,</span> <span class="p">{})</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="n">name</span><span class="p">)</span> +</span><span id="L-337"><a href="#L-337"><span class="linenos">337</span></a> <span class="n">column</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">column</span><span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="n">table</span><span class="p">)</span> +</span><span id="L-338"><a href="#L-338"><span class="linenos">338</span></a> <span class="n">new_selections</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">alias</span><span class="p">(</span><span class="n">column</span><span class="p">,</span> <span class="n">alias_</span><span class="p">)</span> <span class="k">if</span> <span class="n">alias_</span> <span class="o">!=</span> <span class="n">name</span> <span class="k">else</span> <span class="n">column</span><span class="p">)</span> +</span><span id="L-339"><a href="#L-339"><span class="linenos">339</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="L-340"><a href="#L-340"><span class="linenos">340</span></a> <span class="k">return</span> +</span><span id="L-341"><a href="#L-341"><span class="linenos">341</span></a> <span class="n">scope</span><span class="o">.</span><span class="n">expression</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">new_selections</span><span class="p">)</span> +</span><span id="L-342"><a href="#L-342"><span class="linenos">342</span></a> </span><span id="L-343"><a href="#L-343"><span class="linenos">343</span></a> -</span><span id="L-344"><a href="#L-344"><span class="linenos">344</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">except_</span><span class="p">:</span> -</span><span id="L-345"><a href="#L-345"><span class="linenos">345</span></a> <span class="k">return</span> +</span><span id="L-344"><a href="#L-344"><span class="linenos">344</span></a><span class="k">def</span> <span class="nf">_add_except_columns</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">tables</span><span class="p">,</span> <span class="n">except_columns</span><span class="p">):</span> +</span><span id="L-345"><a href="#L-345"><span class="linenos">345</span></a> <span class="n">except_</span> <span class="o">=</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">"except"</span><span class="p">)</span> </span><span id="L-346"><a href="#L-346"><span class="linenos">346</span></a> -</span><span id="L-347"><a href="#L-347"><span class="linenos">347</span></a> <span class="n">columns</span> <span class="o">=</span> <span class="p">{</span><span class="n">e</span><span class="o">.</span><span class="n">name</span> <span class="k">for</span> <span class="n">e</span> <span class="ow">in</span> <span class="n">except_</span><span class="p">}</span> -</span><span id="L-348"><a href="#L-348"><span class="linenos">348</span></a> -</span><span id="L-349"><a href="#L-349"><span class="linenos">349</span></a> <span class="k">for</span> <span class="n">table</span> <span class="ow">in</span> <span class="n">tables</span><span class="p">:</span> -</span><span id="L-350"><a href="#L-350"><span class="linenos">350</span></a> <span class="n">except_columns</span><span class="p">[</span><span class="nb">id</span><span class="p">(</span><span class="n">table</span><span class="p">)]</span> <span class="o">=</span> <span class="n">columns</span> +</span><span id="L-347"><a href="#L-347"><span class="linenos">347</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">except_</span><span class="p">:</span> +</span><span id="L-348"><a href="#L-348"><span class="linenos">348</span></a> <span class="k">return</span> +</span><span id="L-349"><a href="#L-349"><span class="linenos">349</span></a> +</span><span id="L-350"><a href="#L-350"><span class="linenos">350</span></a> <span class="n">columns</span> <span class="o">=</span> <span class="p">{</span><span class="n">e</span><span class="o">.</span><span class="n">name</span> <span class="k">for</span> <span class="n">e</span> <span class="ow">in</span> <span class="n">except_</span><span class="p">}</span> </span><span id="L-351"><a href="#L-351"><span class="linenos">351</span></a> -</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">def</span> <span class="nf">_add_replace_columns</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">tables</span><span class="p">,</span> <span class="n">replace_columns</span><span class="p">):</span> -</span><span id="L-354"><a href="#L-354"><span class="linenos">354</span></a> <span class="n">replace</span> <span class="o">=</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">"replace"</span><span class="p">)</span> +</span><span id="L-352"><a href="#L-352"><span class="linenos">352</span></a> <span class="k">for</span> <span class="n">table</span> <span class="ow">in</span> <span class="n">tables</span><span class="p">:</span> +</span><span id="L-353"><a href="#L-353"><span class="linenos">353</span></a> <span class="n">except_columns</span><span class="p">[</span><span class="nb">id</span><span class="p">(</span><span class="n">table</span><span class="p">)]</span> <span class="o">=</span> <span class="n">columns</span> +</span><span id="L-354"><a href="#L-354"><span class="linenos">354</span></a> </span><span id="L-355"><a href="#L-355"><span class="linenos">355</span></a> -</span><span id="L-356"><a href="#L-356"><span class="linenos">356</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">replace</span><span class="p">:</span> -</span><span id="L-357"><a href="#L-357"><span class="linenos">357</span></a> <span class="k">return</span> +</span><span id="L-356"><a href="#L-356"><span class="linenos">356</span></a><span class="k">def</span> <span class="nf">_add_replace_columns</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">tables</span><span class="p">,</span> <span class="n">replace_columns</span><span class="p">):</span> +</span><span id="L-357"><a href="#L-357"><span class="linenos">357</span></a> <span class="n">replace</span> <span class="o">=</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">"replace"</span><span class="p">)</span> </span><span id="L-358"><a href="#L-358"><span class="linenos">358</span></a> -</span><span id="L-359"><a href="#L-359"><span class="linenos">359</span></a> <span class="n">columns</span> <span class="o">=</span> <span class="p">{</span><span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">name</span><span class="p">:</span> <span class="n">e</span><span class="o">.</span><span class="n">alias</span> <span class="k">for</span> <span class="n">e</span> <span class="ow">in</span> <span class="n">replace</span><span class="p">}</span> -</span><span id="L-360"><a href="#L-360"><span class="linenos">360</span></a> -</span><span id="L-361"><a href="#L-361"><span class="linenos">361</span></a> <span class="k">for</span> <span class="n">table</span> <span class="ow">in</span> <span class="n">tables</span><span class="p">:</span> -</span><span id="L-362"><a href="#L-362"><span class="linenos">362</span></a> <span class="n">replace_columns</span><span class="p">[</span><span class="nb">id</span><span class="p">(</span><span class="n">table</span><span class="p">)]</span> <span class="o">=</span> <span class="n">columns</span> +</span><span id="L-359"><a href="#L-359"><span class="linenos">359</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">replace</span><span class="p">:</span> +</span><span id="L-360"><a href="#L-360"><span class="linenos">360</span></a> <span class="k">return</span> +</span><span id="L-361"><a href="#L-361"><span class="linenos">361</span></a> +</span><span id="L-362"><a href="#L-362"><span class="linenos">362</span></a> <span class="n">columns</span> <span class="o">=</span> <span class="p">{</span><span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">name</span><span class="p">:</span> <span class="n">e</span><span class="o">.</span><span class="n">alias</span> <span class="k">for</span> <span class="n">e</span> <span class="ow">in</span> <span class="n">replace</span><span class="p">}</span> </span><span id="L-363"><a href="#L-363"><span class="linenos">363</span></a> -</span><span id="L-364"><a href="#L-364"><span class="linenos">364</span></a> -</span><span id="L-365"><a href="#L-365"><span class="linenos">365</span></a><span class="k">def</span> <span class="nf">_qualify_outputs</span><span class="p">(</span><span class="n">scope</span><span class="p">):</span> -</span><span id="L-366"><a href="#L-366"><span class="linenos">366</span></a><span class="w"> </span><span class="sd">"""Ensure all output columns are aliased"""</span> -</span><span id="L-367"><a href="#L-367"><span class="linenos">367</span></a> <span class="n">new_selections</span> <span class="o">=</span> <span class="p">[]</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">for</span> <span class="n">i</span><span class="p">,</span> <span class="p">(</span><span class="n">selection</span><span class="p">,</span> <span class="n">aliased_column</span><span class="p">)</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span> -</span><span id="L-370"><a href="#L-370"><span class="linenos">370</span></a> <span class="n">itertools</span><span class="o">.</span><span class="n">zip_longest</span><span class="p">(</span><span class="n">scope</span><span class="o">.</span><span class="n">selects</span><span class="p">,</span> <span class="n">scope</span><span class="o">.</span><span class="n">outer_column_list</span><span class="p">)</span> -</span><span id="L-371"><a href="#L-371"><span class="linenos">371</span></a> <span class="p">):</span> -</span><span id="L-372"><a href="#L-372"><span class="linenos">372</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">selection</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Subquery</span><span class="p">):</span> -</span><span id="L-373"><a href="#L-373"><span class="linenos">373</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">selection</span><span class="o">.</span><span class="n">output_name</span><span class="p">:</span> -</span><span id="L-374"><a href="#L-374"><span class="linenos">374</span></a> <span class="n">selection</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"alias"</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">TableAlias</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="sa">f</span><span class="s2">"_col_</span><span class="si">{</span><span class="n">i</span><span class="si">}</span><span class="s2">"</span><span class="p">)))</span> -</span><span id="L-375"><a href="#L-375"><span class="linenos">375</span></a> <span class="k">elif</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">selection</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Alias</span><span class="p">)</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">selection</span><span class="o">.</span><span class="n">is_star</span><span class="p">:</span> -</span><span id="L-376"><a href="#L-376"><span class="linenos">376</span></a> <span class="n">alias_</span> <span class="o">=</span> <span class="n">alias</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="s2">""</span><span class="p">),</span> <span class="n">alias</span><span class="o">=</span><span class="n">selection</span><span class="o">.</span><span class="n">output_name</span> <span class="ow">or</span> <span class="sa">f</span><span class="s2">"_col_</span><span class="si">{</span><span class="n">i</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> -</span><span id="L-377"><a href="#L-377"><span class="linenos">377</span></a> <span class="n">alias_</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"this"</span><span class="p">,</span> <span class="n">selection</span><span class="p">)</span> -</span><span id="L-378"><a href="#L-378"><span class="linenos">378</span></a> <span class="n">selection</span> <span class="o">=</span> <span class="n">alias_</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">if</span> <span class="n">aliased_column</span><span class="p">:</span> -</span><span id="L-381"><a href="#L-381"><span class="linenos">381</span></a> <span class="n">selection</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"alias"</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="n">aliased_column</span><span class="p">))</span> +</span><span id="L-364"><a href="#L-364"><span class="linenos">364</span></a> <span class="k">for</span> <span class="n">table</span> <span class="ow">in</span> <span class="n">tables</span><span class="p">:</span> +</span><span id="L-365"><a href="#L-365"><span class="linenos">365</span></a> <span class="n">replace_columns</span><span class="p">[</span><span class="nb">id</span><span class="p">(</span><span class="n">table</span><span class="p">)]</span> <span class="o">=</span> <span class="n">columns</span> +</span><span id="L-366"><a href="#L-366"><span class="linenos">366</span></a> +</span><span id="L-367"><a href="#L-367"><span class="linenos">367</span></a> +</span><span id="L-368"><a href="#L-368"><span class="linenos">368</span></a><span class="k">def</span> <span class="nf">_qualify_outputs</span><span class="p">(</span><span class="n">scope</span><span class="p">):</span> +</span><span id="L-369"><a href="#L-369"><span class="linenos">369</span></a><span class="w"> </span><span class="sd">"""Ensure all output columns are aliased"""</span> +</span><span id="L-370"><a href="#L-370"><span class="linenos">370</span></a> <span class="n">new_selections</span> <span class="o">=</span> <span class="p">[]</span> +</span><span id="L-371"><a href="#L-371"><span class="linenos">371</span></a> +</span><span id="L-372"><a href="#L-372"><span class="linenos">372</span></a> <span class="k">for</span> <span class="n">i</span><span class="p">,</span> <span class="p">(</span><span class="n">selection</span><span class="p">,</span> <span class="n">aliased_column</span><span class="p">)</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span> +</span><span id="L-373"><a href="#L-373"><span class="linenos">373</span></a> <span class="n">itertools</span><span class="o">.</span><span class="n">zip_longest</span><span class="p">(</span><span class="n">scope</span><span class="o">.</span><span class="n">selects</span><span class="p">,</span> <span class="n">scope</span><span class="o">.</span><span class="n">outer_column_list</span><span class="p">)</span> +</span><span id="L-374"><a href="#L-374"><span class="linenos">374</span></a> <span class="p">):</span> +</span><span id="L-375"><a href="#L-375"><span class="linenos">375</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">selection</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Subquery</span><span class="p">):</span> +</span><span id="L-376"><a href="#L-376"><span class="linenos">376</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">selection</span><span class="o">.</span><span class="n">output_name</span><span class="p">:</span> +</span><span id="L-377"><a href="#L-377"><span class="linenos">377</span></a> <span class="n">selection</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"alias"</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">TableAlias</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="sa">f</span><span class="s2">"_col_</span><span class="si">{</span><span class="n">i</span><span class="si">}</span><span class="s2">"</span><span class="p">)))</span> +</span><span id="L-378"><a href="#L-378"><span class="linenos">378</span></a> <span class="k">elif</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">selection</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Alias</span><span class="p">)</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">selection</span><span class="o">.</span><span class="n">is_star</span><span class="p">:</span> +</span><span id="L-379"><a href="#L-379"><span class="linenos">379</span></a> <span class="n">alias_</span> <span class="o">=</span> <span class="n">alias</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="s2">""</span><span class="p">),</span> <span class="n">alias</span><span class="o">=</span><span class="n">selection</span><span class="o">.</span><span class="n">output_name</span> <span class="ow">or</span> <span class="sa">f</span><span class="s2">"_col_</span><span class="si">{</span><span class="n">i</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> +</span><span id="L-380"><a href="#L-380"><span class="linenos">380</span></a> <span class="n">alias_</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"this"</span><span class="p">,</span> <span class="n">selection</span><span class="p">)</span> +</span><span id="L-381"><a href="#L-381"><span class="linenos">381</span></a> <span class="n">selection</span> <span class="o">=</span> <span class="n">alias_</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="n">new_selections</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">selection</span><span class="p">)</span> -</span><span id="L-384"><a href="#L-384"><span class="linenos">384</span></a> -</span><span id="L-385"><a href="#L-385"><span class="linenos">385</span></a> <span class="n">scope</span><span class="o">.</span><span class="n">expression</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">new_selections</span><span class="p">)</span> -</span><span id="L-386"><a href="#L-386"><span class="linenos">386</span></a> +</span><span id="L-383"><a href="#L-383"><span class="linenos">383</span></a> <span class="k">if</span> <span class="n">aliased_column</span><span class="p">:</span> +</span><span id="L-384"><a href="#L-384"><span class="linenos">384</span></a> <span class="n">selection</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"alias"</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="n">aliased_column</span><span class="p">))</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="n">new_selections</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">selection</span><span class="p">)</span> </span><span id="L-387"><a href="#L-387"><span class="linenos">387</span></a> -</span><span id="L-388"><a href="#L-388"><span class="linenos">388</span></a><span class="k">class</span> <span class="nc">Resolver</span><span class="p">:</span> -</span><span id="L-389"><a href="#L-389"><span class="linenos">389</span></a><span class="w"> </span><span class="sd">"""</span> -</span><span id="L-390"><a href="#L-390"><span class="linenos">390</span></a><span class="sd"> Helper for resolving columns.</span> -</span><span id="L-391"><a href="#L-391"><span class="linenos">391</span></a> -</span><span id="L-392"><a href="#L-392"><span class="linenos">392</span></a><span class="sd"> This is a class so we can lazily load some things and easily share them across functions.</span> -</span><span id="L-393"><a href="#L-393"><span class="linenos">393</span></a><span class="sd"> """</span> +</span><span id="L-388"><a href="#L-388"><span class="linenos">388</span></a> <span class="n">scope</span><span class="o">.</span><span class="n">expression</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">new_selections</span><span class="p">)</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><span id="L-391"><a href="#L-391"><span class="linenos">391</span></a><span class="k">class</span> <span class="nc">Resolver</span><span class="p">:</span> +</span><span id="L-392"><a href="#L-392"><span class="linenos">392</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="L-393"><a href="#L-393"><span class="linenos">393</span></a><span class="sd"> Helper for resolving columns.</span> </span><span id="L-394"><a href="#L-394"><span class="linenos">394</span></a> -</span><span id="L-395"><a href="#L-395"><span class="linenos">395</span></a> <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">scope</span><span class="p">,</span> <span class="n">schema</span><span class="p">):</span> -</span><span id="L-396"><a href="#L-396"><span class="linenos">396</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span> <span class="o">=</span> <span class="n">scope</span> -</span><span id="L-397"><a href="#L-397"><span class="linenos">397</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">schema</span> <span class="o">=</span> <span class="n">schema</span> -</span><span id="L-398"><a href="#L-398"><span class="linenos">398</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span> <span class="o">=</span> <span class="kc">None</span> -</span><span id="L-399"><a href="#L-399"><span class="linenos">399</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span> <span class="o">=</span> <span class="kc">None</span> -</span><span id="L-400"><a href="#L-400"><span class="linenos">400</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> <span class="o">=</span> <span class="kc">None</span> -</span><span id="L-401"><a href="#L-401"><span class="linenos">401</span></a> -</span><span id="L-402"><a href="#L-402"><span class="linenos">402</span></a> <span class="k">def</span> <span class="nf">get_table</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">column_name</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">exp</span><span class="o">.</span><span class="n">Identifier</span><span class="p">]:</span> -</span><span id="L-403"><a href="#L-403"><span class="linenos">403</span></a><span class="w"> </span><span class="sd">"""</span> -</span><span id="L-404"><a href="#L-404"><span class="linenos">404</span></a><span class="sd"> Get the table for a column name.</span> -</span><span id="L-405"><a href="#L-405"><span class="linenos">405</span></a> -</span><span id="L-406"><a href="#L-406"><span class="linenos">406</span></a><span class="sd"> Args:</span> -</span><span id="L-407"><a href="#L-407"><span class="linenos">407</span></a><span class="sd"> column_name: The column name to find the table for.</span> -</span><span id="L-408"><a href="#L-408"><span class="linenos">408</span></a><span class="sd"> Returns:</span> -</span><span id="L-409"><a href="#L-409"><span class="linenos">409</span></a><span class="sd"> The table name if it can be found/inferred.</span> -</span><span id="L-410"><a href="#L-410"><span class="linenos">410</span></a><span class="sd"> """</span> -</span><span id="L-411"><a href="#L-411"><span class="linenos">411</span></a> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> -</span><span id="L-412"><a href="#L-412"><span class="linenos">412</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_unambiguous_columns</span><span class="p">(</span> -</span><span id="L-413"><a href="#L-413"><span class="linenos">413</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_get_all_source_columns</span><span class="p">()</span> -</span><span id="L-414"><a href="#L-414"><span class="linenos">414</span></a> <span class="p">)</span> -</span><span id="L-415"><a href="#L-415"><span class="linenos">415</span></a> -</span><span id="L-416"><a href="#L-416"><span class="linenos">416</span></a> <span class="n">table_name</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">column_name</span><span class="p">)</span> -</span><span id="L-417"><a href="#L-417"><span class="linenos">417</span></a> -</span><span id="L-418"><a href="#L-418"><span class="linenos">418</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">table_name</span><span class="p">:</span> -</span><span id="L-419"><a href="#L-419"><span class="linenos">419</span></a> <span class="n">sources_without_schema</span> <span class="o">=</span> <span class="nb">tuple</span><span class="p">(</span> -</span><span id="L-420"><a href="#L-420"><span class="linenos">420</span></a> <span class="n">source</span> -</span><span id="L-421"><a href="#L-421"><span class="linenos">421</span></a> <span class="k">for</span> <span class="n">source</span><span class="p">,</span> <span class="n">columns</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_all_source_columns</span><span class="p">()</span><span class="o">.</span><span class="n">items</span><span class="p">()</span> -</span><span id="L-422"><a href="#L-422"><span class="linenos">422</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">columns</span> <span class="ow">or</span> <span class="s2">"*"</span> <span class="ow">in</span> <span class="n">columns</span> -</span><span id="L-423"><a href="#L-423"><span class="linenos">423</span></a> <span class="p">)</span> -</span><span id="L-424"><a href="#L-424"><span class="linenos">424</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">sources_without_schema</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span> -</span><span id="L-425"><a href="#L-425"><span class="linenos">425</span></a> <span class="n">table_name</span> <span class="o">=</span> <span class="n">sources_without_schema</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> -</span><span id="L-426"><a href="#L-426"><span class="linenos">426</span></a> -</span><span id="L-427"><a href="#L-427"><span class="linenos">427</span></a> <span class="k">if</span> <span class="n">table_name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="p">:</span> -</span><span id="L-428"><a href="#L-428"><span class="linenos">428</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="n">table_name</span><span class="p">)</span> +</span><span id="L-395"><a href="#L-395"><span class="linenos">395</span></a><span class="sd"> This is a class so we can lazily load some things and easily share them across functions.</span> +</span><span id="L-396"><a href="#L-396"><span class="linenos">396</span></a><span class="sd"> """</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="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">scope</span><span class="p">,</span> <span class="n">schema</span><span class="p">):</span> +</span><span id="L-399"><a href="#L-399"><span class="linenos">399</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span> <span class="o">=</span> <span class="n">scope</span> +</span><span id="L-400"><a href="#L-400"><span class="linenos">400</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">schema</span> <span class="o">=</span> <span class="n">schema</span> +</span><span id="L-401"><a href="#L-401"><span class="linenos">401</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span> <span class="o">=</span> <span class="kc">None</span> +</span><span id="L-402"><a href="#L-402"><span class="linenos">402</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span> <span class="o">=</span> <span class="kc">None</span> +</span><span id="L-403"><a href="#L-403"><span class="linenos">403</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> <span class="o">=</span> <span class="kc">None</span> +</span><span id="L-404"><a href="#L-404"><span class="linenos">404</span></a> +</span><span id="L-405"><a href="#L-405"><span class="linenos">405</span></a> <span class="k">def</span> <span class="nf">get_table</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">column_name</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">exp</span><span class="o">.</span><span class="n">Identifier</span><span class="p">]:</span> +</span><span id="L-406"><a href="#L-406"><span class="linenos">406</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="L-407"><a href="#L-407"><span class="linenos">407</span></a><span class="sd"> Get the table for a column name.</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="sd"> Args:</span> +</span><span id="L-410"><a href="#L-410"><span class="linenos">410</span></a><span class="sd"> column_name: The column name to find the table for.</span> +</span><span id="L-411"><a href="#L-411"><span class="linenos">411</span></a><span class="sd"> Returns:</span> +</span><span id="L-412"><a href="#L-412"><span class="linenos">412</span></a><span class="sd"> The table name if it can be found/inferred.</span> +</span><span id="L-413"><a href="#L-413"><span class="linenos">413</span></a><span class="sd"> """</span> +</span><span id="L-414"><a href="#L-414"><span class="linenos">414</span></a> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span> <span class="ow">is</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="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_unambiguous_columns</span><span class="p">(</span> +</span><span id="L-416"><a href="#L-416"><span class="linenos">416</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_get_all_source_columns</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><span id="L-419"><a href="#L-419"><span class="linenos">419</span></a> <span class="n">table_name</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">column_name</span><span class="p">)</span> +</span><span id="L-420"><a href="#L-420"><span class="linenos">420</span></a> +</span><span id="L-421"><a href="#L-421"><span class="linenos">421</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">table_name</span><span class="p">:</span> +</span><span id="L-422"><a href="#L-422"><span class="linenos">422</span></a> <span class="n">sources_without_schema</span> <span class="o">=</span> <span class="nb">tuple</span><span class="p">(</span> +</span><span id="L-423"><a href="#L-423"><span class="linenos">423</span></a> <span class="n">source</span> +</span><span id="L-424"><a href="#L-424"><span class="linenos">424</span></a> <span class="k">for</span> <span class="n">source</span><span class="p">,</span> <span class="n">columns</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_all_source_columns</span><span class="p">()</span><span class="o">.</span><span class="n">items</span><span class="p">()</span> +</span><span id="L-425"><a href="#L-425"><span class="linenos">425</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">columns</span> <span class="ow">or</span> <span class="s2">"*"</span> <span class="ow">in</span> <span class="n">columns</span> +</span><span id="L-426"><a href="#L-426"><span class="linenos">426</span></a> <span class="p">)</span> +</span><span id="L-427"><a href="#L-427"><span class="linenos">427</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">sources_without_schema</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span> +</span><span id="L-428"><a href="#L-428"><span class="linenos">428</span></a> <span class="n">table_name</span> <span class="o">=</span> <span class="n">sources_without_schema</span><span class="p">[</span><span class="mi">0</span><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">node</span><span class="p">,</span> <span class="n">_</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">table_name</span><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="k">if</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">Subqueryable</span><span class="p">):</span> -</span><span id="L-433"><a href="#L-433"><span class="linenos">433</span></a> <span class="k">while</span> <span class="n">node</span> <span class="ow">and</span> <span class="n">node</span><span class="o">.</span><span class="n">alias</span> <span class="o">!=</span> <span class="n">table_name</span><span class="p">:</span> -</span><span id="L-434"><a href="#L-434"><span class="linenos">434</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">node</span><span class="o">.</span><span class="n">parent</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 class="n">node_alias</span> <span class="o">=</span> <span class="n">node</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">"alias"</span><span class="p">)</span> -</span><span id="L-437"><a href="#L-437"><span class="linenos">437</span></a> <span class="k">if</span> <span class="n">node_alias</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">node_alias</span><span class="o">.</span><span class="n">this</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 class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span> -</span><span id="L-441"><a href="#L-441"><span class="linenos">441</span></a> <span class="n">table_name</span><span class="p">,</span> <span class="n">quoted</span><span class="o">=</span><span class="n">node</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">quoted</span> <span class="k">if</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">Table</span><span class="p">)</span> <span class="k">else</span> <span class="kc">None</span> -</span><span id="L-442"><a href="#L-442"><span class="linenos">442</span></a> <span class="p">)</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 class="nd">@property</span> -</span><span id="L-445"><a href="#L-445"><span class="linenos">445</span></a> <span class="k">def</span> <span class="nf">all_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> -</span><span id="L-446"><a href="#L-446"><span class="linenos">446</span></a><span class="w"> </span><span class="sd">"""All available columns of all sources in this scope"""</span> -</span><span id="L-447"><a href="#L-447"><span class="linenos">447</span></a> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> -</span><span id="L-448"><a href="#L-448"><span class="linenos">448</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> <span class="o">=</span> <span class="p">{</span> -</span><span id="L-449"><a href="#L-449"><span class="linenos">449</span></a> <span class="n">column</span> <span class="k">for</span> <span class="n">columns</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_all_source_columns</span><span class="p">()</span><span class="o">.</span><span class="n">values</span><span class="p">()</span> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">columns</span> -</span><span id="L-450"><a href="#L-450"><span class="linenos">450</span></a> <span class="p">}</span> -</span><span id="L-451"><a href="#L-451"><span class="linenos">451</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> -</span><span id="L-452"><a href="#L-452"><span class="linenos">452</span></a> -</span><span id="L-453"><a href="#L-453"><span class="linenos">453</span></a> <span class="k">def</span> <span class="nf">get_source_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">only_visible</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span> -</span><span id="L-454"><a href="#L-454"><span class="linenos">454</span></a><span class="w"> </span><span class="sd">"""Resolve the source columns for a given source `name`"""</span> -</span><span id="L-455"><a href="#L-455"><span class="linenos">455</span></a> <span class="k">if</span> <span class="n">name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">:</span> -</span><span id="L-456"><a href="#L-456"><span class="linenos">456</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Unknown table: </span><span class="si">{</span><span class="n">name</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> -</span><span id="L-457"><a href="#L-457"><span class="linenos">457</span></a> -</span><span id="L-458"><a href="#L-458"><span class="linenos">458</span></a> <span class="n">source</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">[</span><span class="n">name</span><span class="p">]</span> -</span><span id="L-459"><a href="#L-459"><span class="linenos">459</span></a> -</span><span id="L-460"><a href="#L-460"><span class="linenos">460</span></a> <span class="c1"># If referencing a table, return the columns from the schema</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">source</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span><span class="p">):</span> -</span><span id="L-462"><a href="#L-462"><span class="linenos">462</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">schema</span><span class="o">.</span><span class="n">column_names</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">only_visible</span><span class="p">)</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="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">Scope</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</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">Values</span><span class="p">):</span> -</span><span id="L-465"><a href="#L-465"><span class="linenos">465</span></a> <span class="k">return</span> <span class="n">source</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">alias_column_names</span> +</span><span id="L-430"><a href="#L-430"><span class="linenos">430</span></a> <span class="k">if</span> <span class="n">table_name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="p">:</span> +</span><span id="L-431"><a href="#L-431"><span class="linenos">431</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="n">table_name</span><span class="p">)</span> +</span><span id="L-432"><a href="#L-432"><span class="linenos">432</span></a> +</span><span id="L-433"><a href="#L-433"><span class="linenos">433</span></a> <span class="n">node</span><span class="p">,</span> <span class="n">_</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">table_name</span><span class="p">)</span> +</span><span id="L-434"><a href="#L-434"><span class="linenos">434</span></a> +</span><span id="L-435"><a href="#L-435"><span class="linenos">435</span></a> <span class="k">if</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">Subqueryable</span><span class="p">):</span> +</span><span id="L-436"><a href="#L-436"><span class="linenos">436</span></a> <span class="k">while</span> <span class="n">node</span> <span class="ow">and</span> <span class="n">node</span><span class="o">.</span><span class="n">alias</span> <span class="o">!=</span> <span class="n">table_name</span><span class="p">:</span> +</span><span id="L-437"><a href="#L-437"><span class="linenos">437</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">node</span><span class="o">.</span><span class="n">parent</span> +</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="n">node_alias</span> <span class="o">=</span> <span class="n">node</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">"alias"</span><span class="p">)</span> +</span><span id="L-440"><a href="#L-440"><span class="linenos">440</span></a> <span class="k">if</span> <span class="n">node_alias</span><span class="p">:</span> +</span><span id="L-441"><a href="#L-441"><span class="linenos">441</span></a> <span class="k">return</span> <span class="n">node_alias</span><span class="o">.</span><span class="n">this</span> +</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">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span> +</span><span id="L-444"><a href="#L-444"><span class="linenos">444</span></a> <span class="n">table_name</span><span class="p">,</span> <span class="n">quoted</span><span class="o">=</span><span class="n">node</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">quoted</span> <span class="k">if</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">Table</span><span class="p">)</span> <span class="k">else</span> <span class="kc">None</span> +</span><span id="L-445"><a href="#L-445"><span class="linenos">445</span></a> <span class="p">)</span> +</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">@property</span> +</span><span id="L-448"><a href="#L-448"><span class="linenos">448</span></a> <span class="k">def</span> <span class="nf">all_columns</span><span class="p">(</span><span class="bp">self</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">"""All available columns of all sources in this scope"""</span> +</span><span id="L-450"><a href="#L-450"><span class="linenos">450</span></a> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> +</span><span id="L-451"><a href="#L-451"><span class="linenos">451</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> <span class="o">=</span> <span class="p">{</span> +</span><span id="L-452"><a href="#L-452"><span class="linenos">452</span></a> <span class="n">column</span> <span class="k">for</span> <span class="n">columns</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_all_source_columns</span><span class="p">()</span><span class="o">.</span><span class="n">values</span><span class="p">()</span> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">columns</span> +</span><span id="L-453"><a href="#L-453"><span class="linenos">453</span></a> <span class="p">}</span> +</span><span id="L-454"><a href="#L-454"><span class="linenos">454</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> +</span><span id="L-455"><a href="#L-455"><span class="linenos">455</span></a> +</span><span id="L-456"><a href="#L-456"><span class="linenos">456</span></a> <span class="k">def</span> <span class="nf">get_source_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">only_visible</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span> +</span><span id="L-457"><a href="#L-457"><span class="linenos">457</span></a><span class="w"> </span><span class="sd">"""Resolve the source columns for a given source `name`"""</span> +</span><span id="L-458"><a href="#L-458"><span class="linenos">458</span></a> <span class="k">if</span> <span class="n">name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">:</span> +</span><span id="L-459"><a href="#L-459"><span class="linenos">459</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Unknown table: </span><span class="si">{</span><span class="n">name</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> +</span><span id="L-460"><a href="#L-460"><span class="linenos">460</span></a> +</span><span id="L-461"><a href="#L-461"><span class="linenos">461</span></a> <span class="n">source</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">[</span><span class="n">name</span><span class="p">]</span> +</span><span id="L-462"><a href="#L-462"><span class="linenos">462</span></a> +</span><span id="L-463"><a href="#L-463"><span class="linenos">463</span></a> <span class="c1"># If referencing a table, return the columns from the schema</span> +</span><span id="L-464"><a href="#L-464"><span class="linenos">464</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span><span class="p">):</span> +</span><span id="L-465"><a href="#L-465"><span class="linenos">465</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">schema</span><span class="o">.</span><span class="n">column_names</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">only_visible</span><span class="p">)</span> </span><span id="L-466"><a href="#L-466"><span class="linenos">466</span></a> -</span><span id="L-467"><a href="#L-467"><span class="linenos">467</span></a> <span class="c1"># Otherwise, if referencing another scope, return that scope's named selects</span> -</span><span id="L-468"><a href="#L-468"><span class="linenos">468</span></a> <span class="k">return</span> <span class="n">source</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">named_selects</span> +</span><span id="L-467"><a href="#L-467"><span class="linenos">467</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">Scope</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</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">Values</span><span class="p">):</span> +</span><span id="L-468"><a href="#L-468"><span class="linenos">468</span></a> <span class="k">return</span> <span class="n">source</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">alias_column_names</span> </span><span id="L-469"><a href="#L-469"><span class="linenos">469</span></a> -</span><span id="L-470"><a href="#L-470"><span class="linenos">470</span></a> <span class="k">def</span> <span class="nf">_get_all_source_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> -</span><span id="L-471"><a href="#L-471"><span class="linenos">471</span></a> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> -</span><span id="L-472"><a href="#L-472"><span class="linenos">472</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span> <span class="o">=</span> <span class="p">{</span> -</span><span id="L-473"><a href="#L-473"><span class="linenos">473</span></a> <span class="n">k</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_source_columns</span><span class="p">(</span><span class="n">k</span><span class="p">)</span> -</span><span id="L-474"><a href="#L-474"><span class="linenos">474</span></a> <span class="k">for</span> <span class="n">k</span> <span class="ow">in</span> <span class="n">itertools</span><span class="o">.</span><span class="n">chain</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">lateral_sources</span><span class="p">)</span> -</span><span id="L-475"><a href="#L-475"><span class="linenos">475</span></a> <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="bp">self</span><span class="o">.</span><span class="n">_source_columns</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">def</span> <span class="nf">_get_unambiguous_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">source_columns</span><span class="p">):</span> -</span><span id="L-479"><a href="#L-479"><span class="linenos">479</span></a><span class="w"> </span><span class="sd">"""</span> -</span><span id="L-480"><a href="#L-480"><span class="linenos">480</span></a><span class="sd"> Find all the unambiguous columns in sources.</span> -</span><span id="L-481"><a href="#L-481"><span class="linenos">481</span></a> -</span><span id="L-482"><a href="#L-482"><span class="linenos">482</span></a><span class="sd"> Args:</span> -</span><span id="L-483"><a href="#L-483"><span class="linenos">483</span></a><span class="sd"> source_columns (dict): Mapping of names to source columns</span> -</span><span id="L-484"><a href="#L-484"><span class="linenos">484</span></a><span class="sd"> Returns:</span> -</span><span id="L-485"><a href="#L-485"><span class="linenos">485</span></a><span class="sd"> dict: Mapping of column name to source name</span> -</span><span id="L-486"><a href="#L-486"><span class="linenos">486</span></a><span class="sd"> """</span> -</span><span id="L-487"><a href="#L-487"><span class="linenos">487</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">source_columns</span><span class="p">:</span> -</span><span id="L-488"><a href="#L-488"><span class="linenos">488</span></a> <span class="k">return</span> <span class="p">{}</span> -</span><span id="L-489"><a href="#L-489"><span class="linenos">489</span></a> -</span><span id="L-490"><a href="#L-490"><span class="linenos">490</span></a> <span class="n">source_columns</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">source_columns</span><span class="o">.</span><span class="n">items</span><span class="p">())</span> -</span><span id="L-491"><a href="#L-491"><span class="linenos">491</span></a> -</span><span id="L-492"><a href="#L-492"><span class="linenos">492</span></a> <span class="n">first_table</span><span class="p">,</span> <span class="n">first_columns</span> <span class="o">=</span> <span class="n">source_columns</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> -</span><span id="L-493"><a href="#L-493"><span class="linenos">493</span></a> <span class="n">unambiguous_columns</span> <span class="o">=</span> <span class="p">{</span><span class="n">col</span><span class="p">:</span> <span class="n">first_table</span> <span class="k">for</span> <span class="n">col</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_find_unique_columns</span><span class="p">(</span><span class="n">first_columns</span><span class="p">)}</span> -</span><span id="L-494"><a href="#L-494"><span class="linenos">494</span></a> <span class="n">all_columns</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">unambiguous_columns</span><span class="p">)</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 class="k">for</span> <span class="n">table</span><span class="p">,</span> <span class="n">columns</span> <span class="ow">in</span> <span class="n">source_columns</span><span class="p">[</span><span class="mi">1</span><span class="p">:]:</span> -</span><span id="L-497"><a href="#L-497"><span class="linenos">497</span></a> <span class="n">unique</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_find_unique_columns</span><span class="p">(</span><span class="n">columns</span><span class="p">)</span> -</span><span id="L-498"><a href="#L-498"><span class="linenos">498</span></a> <span class="n">ambiguous</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">all_columns</span><span class="p">)</span><span class="o">.</span><span class="n">intersection</span><span class="p">(</span><span class="n">unique</span><span class="p">)</span> -</span><span id="L-499"><a href="#L-499"><span class="linenos">499</span></a> <span class="n">all_columns</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">columns</span><span class="p">)</span> -</span><span id="L-500"><a href="#L-500"><span class="linenos">500</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">ambiguous</span><span class="p">:</span> -</span><span id="L-501"><a href="#L-501"><span class="linenos">501</span></a> <span class="n">unambiguous_columns</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="n">column</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span> -</span><span id="L-502"><a href="#L-502"><span class="linenos">502</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">unique</span><span class="o">.</span><span class="n">difference</span><span class="p">(</span><span class="n">ambiguous</span><span class="p">):</span> -</span><span id="L-503"><a href="#L-503"><span class="linenos">503</span></a> <span class="n">unambiguous_columns</span><span class="p">[</span><span class="n">column</span><span class="p">]</span> <span class="o">=</span> <span class="n">table</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">return</span> <span class="n">unambiguous_columns</span> -</span><span id="L-506"><a href="#L-506"><span class="linenos">506</span></a> -</span><span id="L-507"><a href="#L-507"><span class="linenos">507</span></a> <span class="nd">@staticmethod</span> -</span><span id="L-508"><a href="#L-508"><span class="linenos">508</span></a> <span class="k">def</span> <span class="nf">_find_unique_columns</span><span class="p">(</span><span class="n">columns</span><span class="p">):</span> -</span><span id="L-509"><a href="#L-509"><span class="linenos">509</span></a><span class="w"> </span><span class="sd">"""</span> -</span><span id="L-510"><a href="#L-510"><span class="linenos">510</span></a><span class="sd"> Find the unique columns in a list of columns.</span> -</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="sd"> Example:</span> -</span><span id="L-513"><a href="#L-513"><span class="linenos">513</span></a><span class="sd"> >>> sorted(Resolver._find_unique_columns(["a", "b", "b", "c"]))</span> -</span><span id="L-514"><a href="#L-514"><span class="linenos">514</span></a><span class="sd"> ['a', 'c']</span> -</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="sd"> This is necessary because duplicate column names are ambiguous.</span> -</span><span id="L-517"><a href="#L-517"><span class="linenos">517</span></a><span class="sd"> """</span> -</span><span id="L-518"><a href="#L-518"><span class="linenos">518</span></a> <span class="n">counts</span> <span class="o">=</span> <span class="p">{}</span> -</span><span id="L-519"><a href="#L-519"><span class="linenos">519</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">columns</span><span class="p">:</span> -</span><span id="L-520"><a href="#L-520"><span class="linenos">520</span></a> <span class="n">counts</span><span class="p">[</span><span class="n">column</span><span class="p">]</span> <span class="o">=</span> <span class="n">counts</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="mi">0</span><span class="p">)</span> <span class="o">+</span> <span class="mi">1</span> -</span><span id="L-521"><a href="#L-521"><span class="linenos">521</span></a> <span class="k">return</span> <span class="p">{</span><span class="n">column</span> <span class="k">for</span> <span class="n">column</span><span class="p">,</span> <span class="n">count</span> <span class="ow">in</span> <span class="n">counts</span><span class="o">.</span><span class="n">items</span><span class="p">()</span> <span class="k">if</span> <span class="n">count</span> <span class="o">==</span> <span class="mi">1</span><span class="p">}</span> +</span><span id="L-470"><a href="#L-470"><span class="linenos">470</span></a> <span class="c1"># Otherwise, if referencing another scope, return that scope's named selects</span> +</span><span id="L-471"><a href="#L-471"><span class="linenos">471</span></a> <span class="k">return</span> <span class="n">source</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">named_selects</span> +</span><span id="L-472"><a href="#L-472"><span class="linenos">472</span></a> +</span><span id="L-473"><a href="#L-473"><span class="linenos">473</span></a> <span class="k">def</span> <span class="nf">_get_all_source_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> +</span><span id="L-474"><a href="#L-474"><span class="linenos">474</span></a> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> +</span><span id="L-475"><a href="#L-475"><span class="linenos">475</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span> <span class="o">=</span> <span class="p">{</span> +</span><span id="L-476"><a href="#L-476"><span class="linenos">476</span></a> <span class="n">k</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_source_columns</span><span class="p">(</span><span class="n">k</span><span class="p">)</span> +</span><span id="L-477"><a href="#L-477"><span class="linenos">477</span></a> <span class="k">for</span> <span class="n">k</span> <span class="ow">in</span> <span class="n">itertools</span><span class="o">.</span><span class="n">chain</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">lateral_sources</span><span class="p">)</span> +</span><span id="L-478"><a href="#L-478"><span class="linenos">478</span></a> <span class="p">}</span> +</span><span id="L-479"><a href="#L-479"><span class="linenos">479</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span> +</span><span id="L-480"><a href="#L-480"><span class="linenos">480</span></a> +</span><span id="L-481"><a href="#L-481"><span class="linenos">481</span></a> <span class="k">def</span> <span class="nf">_get_unambiguous_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">source_columns</span><span class="p">):</span> +</span><span id="L-482"><a href="#L-482"><span class="linenos">482</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="L-483"><a href="#L-483"><span class="linenos">483</span></a><span class="sd"> Find all the unambiguous columns in sources.</span> +</span><span id="L-484"><a href="#L-484"><span class="linenos">484</span></a> +</span><span id="L-485"><a href="#L-485"><span class="linenos">485</span></a><span class="sd"> Args:</span> +</span><span id="L-486"><a href="#L-486"><span class="linenos">486</span></a><span class="sd"> source_columns (dict): Mapping of names to source columns</span> +</span><span id="L-487"><a href="#L-487"><span class="linenos">487</span></a><span class="sd"> Returns:</span> +</span><span id="L-488"><a href="#L-488"><span class="linenos">488</span></a><span class="sd"> dict: Mapping of column name to source name</span> +</span><span id="L-489"><a href="#L-489"><span class="linenos">489</span></a><span class="sd"> """</span> +</span><span id="L-490"><a href="#L-490"><span class="linenos">490</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">source_columns</span><span class="p">:</span> +</span><span id="L-491"><a href="#L-491"><span class="linenos">491</span></a> <span class="k">return</span> <span class="p">{}</span> +</span><span id="L-492"><a href="#L-492"><span class="linenos">492</span></a> +</span><span id="L-493"><a href="#L-493"><span class="linenos">493</span></a> <span class="n">source_columns</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">source_columns</span><span class="o">.</span><span class="n">items</span><span class="p">())</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="n">first_table</span><span class="p">,</span> <span class="n">first_columns</span> <span class="o">=</span> <span class="n">source_columns</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> +</span><span id="L-496"><a href="#L-496"><span class="linenos">496</span></a> <span class="n">unambiguous_columns</span> <span class="o">=</span> <span class="p">{</span><span class="n">col</span><span class="p">:</span> <span class="n">first_table</span> <span class="k">for</span> <span class="n">col</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_find_unique_columns</span><span class="p">(</span><span class="n">first_columns</span><span class="p">)}</span> +</span><span id="L-497"><a href="#L-497"><span class="linenos">497</span></a> <span class="n">all_columns</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">unambiguous_columns</span><span class="p">)</span> +</span><span id="L-498"><a href="#L-498"><span class="linenos">498</span></a> +</span><span id="L-499"><a href="#L-499"><span class="linenos">499</span></a> <span class="k">for</span> <span class="n">table</span><span class="p">,</span> <span class="n">columns</span> <span class="ow">in</span> <span class="n">source_columns</span><span class="p">[</span><span class="mi">1</span><span class="p">:]:</span> +</span><span id="L-500"><a href="#L-500"><span class="linenos">500</span></a> <span class="n">unique</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_find_unique_columns</span><span class="p">(</span><span class="n">columns</span><span class="p">)</span> +</span><span id="L-501"><a href="#L-501"><span class="linenos">501</span></a> <span class="n">ambiguous</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">all_columns</span><span class="p">)</span><span class="o">.</span><span class="n">intersection</span><span class="p">(</span><span class="n">unique</span><span class="p">)</span> +</span><span id="L-502"><a href="#L-502"><span class="linenos">502</span></a> <span class="n">all_columns</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">columns</span><span class="p">)</span> +</span><span id="L-503"><a href="#L-503"><span class="linenos">503</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">ambiguous</span><span class="p">:</span> +</span><span id="L-504"><a href="#L-504"><span class="linenos">504</span></a> <span class="n">unambiguous_columns</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="n">column</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span> +</span><span id="L-505"><a href="#L-505"><span class="linenos">505</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">unique</span><span class="o">.</span><span class="n">difference</span><span class="p">(</span><span class="n">ambiguous</span><span class="p">):</span> +</span><span id="L-506"><a href="#L-506"><span class="linenos">506</span></a> <span class="n">unambiguous_columns</span><span class="p">[</span><span class="n">column</span><span class="p">]</span> <span class="o">=</span> <span class="n">table</span> +</span><span id="L-507"><a href="#L-507"><span class="linenos">507</span></a> +</span><span id="L-508"><a href="#L-508"><span class="linenos">508</span></a> <span class="k">return</span> <span class="n">unambiguous_columns</span> +</span><span id="L-509"><a href="#L-509"><span class="linenos">509</span></a> +</span><span id="L-510"><a href="#L-510"><span class="linenos">510</span></a> <span class="nd">@staticmethod</span> +</span><span id="L-511"><a href="#L-511"><span class="linenos">511</span></a> <span class="k">def</span> <span class="nf">_find_unique_columns</span><span class="p">(</span><span class="n">columns</span><span class="p">):</span> +</span><span id="L-512"><a href="#L-512"><span class="linenos">512</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="L-513"><a href="#L-513"><span class="linenos">513</span></a><span class="sd"> Find the unique columns in a list of columns.</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 class="sd"> Example:</span> +</span><span id="L-516"><a href="#L-516"><span class="linenos">516</span></a><span class="sd"> >>> sorted(Resolver._find_unique_columns(["a", "b", "b", "c"]))</span> +</span><span id="L-517"><a href="#L-517"><span class="linenos">517</span></a><span class="sd"> ['a', 'c']</span> +</span><span id="L-518"><a href="#L-518"><span class="linenos">518</span></a> +</span><span id="L-519"><a href="#L-519"><span class="linenos">519</span></a><span class="sd"> This is necessary because duplicate column names are ambiguous.</span> +</span><span id="L-520"><a href="#L-520"><span class="linenos">520</span></a><span class="sd"> """</span> +</span><span id="L-521"><a href="#L-521"><span class="linenos">521</span></a> <span class="n">counts</span> <span class="o">=</span> <span class="p">{}</span> +</span><span id="L-522"><a href="#L-522"><span class="linenos">522</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">columns</span><span class="p">:</span> +</span><span id="L-523"><a href="#L-523"><span class="linenos">523</span></a> <span class="n">counts</span><span class="p">[</span><span class="n">column</span><span class="p">]</span> <span class="o">=</span> <span class="n">counts</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="mi">0</span><span class="p">)</span> <span class="o">+</span> <span class="mi">1</span> +</span><span id="L-524"><a href="#L-524"><span class="linenos">524</span></a> <span class="k">return</span> <span class="p">{</span><span class="n">column</span> <span class="k">for</span> <span class="n">column</span><span class="p">,</span> <span class="n">count</span> <span class="ow">in</span> <span class="n">counts</span><span class="o">.</span><span class="n">items</span><span class="p">()</span> <span class="k">if</span> <span class="n">count</span> <span class="o">==</span> <span class="mi">1</span><span class="p">}</span> </span></pre></div> @@ -723,140 +726,140 @@ </div> <a class="headerlink" href="#Resolver"></a> - <div class="pdoc-code codehilite"><pre><span></span><span id="Resolver-389"><a href="#Resolver-389"><span class="linenos">389</span></a><span class="k">class</span> <span class="nc">Resolver</span><span class="p">:</span> -</span><span id="Resolver-390"><a href="#Resolver-390"><span class="linenos">390</span></a><span class="w"> </span><span class="sd">"""</span> -</span><span id="Resolver-391"><a href="#Resolver-391"><span class="linenos">391</span></a><span class="sd"> Helper for resolving columns.</span> -</span><span id="Resolver-392"><a href="#Resolver-392"><span class="linenos">392</span></a> -</span><span id="Resolver-393"><a href="#Resolver-393"><span class="linenos">393</span></a><span class="sd"> This is a class so we can lazily load some things and easily share them across functions.</span> -</span><span id="Resolver-394"><a href="#Resolver-394"><span class="linenos">394</span></a><span class="sd"> """</span> + <div class="pdoc-code codehilite"><pre><span></span><span id="Resolver-392"><a href="#Resolver-392"><span class="linenos">392</span></a><span class="k">class</span> <span class="nc">Resolver</span><span class="p">:</span> +</span><span id="Resolver-393"><a href="#Resolver-393"><span class="linenos">393</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="Resolver-394"><a href="#Resolver-394"><span class="linenos">394</span></a><span class="sd"> Helper for resolving columns.</span> </span><span id="Resolver-395"><a href="#Resolver-395"><span class="linenos">395</span></a> -</span><span id="Resolver-396"><a href="#Resolver-396"><span class="linenos">396</span></a> <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">scope</span><span class="p">,</span> <span class="n">schema</span><span class="p">):</span> -</span><span id="Resolver-397"><a href="#Resolver-397"><span class="linenos">397</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span> <span class="o">=</span> <span class="n">scope</span> -</span><span id="Resolver-398"><a href="#Resolver-398"><span class="linenos">398</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">schema</span> <span class="o">=</span> <span class="n">schema</span> -</span><span id="Resolver-399"><a href="#Resolver-399"><span class="linenos">399</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span> <span class="o">=</span> <span class="kc">None</span> -</span><span id="Resolver-400"><a href="#Resolver-400"><span class="linenos">400</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span> <span class="o">=</span> <span class="kc">None</span> -</span><span id="Resolver-401"><a href="#Resolver-401"><span class="linenos">401</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> <span class="o">=</span> <span class="kc">None</span> -</span><span id="Resolver-402"><a href="#Resolver-402"><span class="linenos">402</span></a> -</span><span id="Resolver-403"><a href="#Resolver-403"><span class="linenos">403</span></a> <span class="k">def</span> <span class="nf">get_table</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">column_name</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">exp</span><span class="o">.</span><span class="n">Identifier</span><span class="p">]:</span> -</span><span id="Resolver-404"><a href="#Resolver-404"><span class="linenos">404</span></a><span class="w"> </span><span class="sd">"""</span> -</span><span id="Resolver-405"><a href="#Resolver-405"><span class="linenos">405</span></a><span class="sd"> Get the table for a column name.</span> -</span><span id="Resolver-406"><a href="#Resolver-406"><span class="linenos">406</span></a> -</span><span id="Resolver-407"><a href="#Resolver-407"><span class="linenos">407</span></a><span class="sd"> Args:</span> -</span><span id="Resolver-408"><a href="#Resolver-408"><span class="linenos">408</span></a><span class="sd"> column_name: The column name to find the table for.</span> -</span><span id="Resolver-409"><a href="#Resolver-409"><span class="linenos">409</span></a><span class="sd"> Returns:</span> -</span><span id="Resolver-410"><a href="#Resolver-410"><span class="linenos">410</span></a><span class="sd"> The table name if it can be found/inferred.</span> -</span><span id="Resolver-411"><a href="#Resolver-411"><span class="linenos">411</span></a><span class="sd"> """</span> -</span><span id="Resolver-412"><a href="#Resolver-412"><span class="linenos">412</span></a> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> -</span><span id="Resolver-413"><a href="#Resolver-413"><span class="linenos">413</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_unambiguous_columns</span><span class="p">(</span> -</span><span id="Resolver-414"><a href="#Resolver-414"><span class="linenos">414</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_get_all_source_columns</span><span class="p">()</span> -</span><span id="Resolver-415"><a href="#Resolver-415"><span class="linenos">415</span></a> <span class="p">)</span> -</span><span id="Resolver-416"><a href="#Resolver-416"><span class="linenos">416</span></a> -</span><span id="Resolver-417"><a href="#Resolver-417"><span class="linenos">417</span></a> <span class="n">table_name</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">column_name</span><span class="p">)</span> -</span><span id="Resolver-418"><a href="#Resolver-418"><span class="linenos">418</span></a> -</span><span id="Resolver-419"><a href="#Resolver-419"><span class="linenos">419</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">table_name</span><span class="p">:</span> -</span><span id="Resolver-420"><a href="#Resolver-420"><span class="linenos">420</span></a> <span class="n">sources_without_schema</span> <span class="o">=</span> <span class="nb">tuple</span><span class="p">(</span> -</span><span id="Resolver-421"><a href="#Resolver-421"><span class="linenos">421</span></a> <span class="n">source</span> -</span><span id="Resolver-422"><a href="#Resolver-422"><span class="linenos">422</span></a> <span class="k">for</span> <span class="n">source</span><span class="p">,</span> <span class="n">columns</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_all_source_columns</span><span class="p">()</span><span class="o">.</span><span class="n">items</span><span class="p">()</span> -</span><span id="Resolver-423"><a href="#Resolver-423"><span class="linenos">423</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">columns</span> <span class="ow">or</span> <span class="s2">"*"</span> <span class="ow">in</span> <span class="n">columns</span> -</span><span id="Resolver-424"><a href="#Resolver-424"><span class="linenos">424</span></a> <span class="p">)</span> -</span><span id="Resolver-425"><a href="#Resolver-425"><span class="linenos">425</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">sources_without_schema</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span> -</span><span id="Resolver-426"><a href="#Resolver-426"><span class="linenos">426</span></a> <span class="n">table_name</span> <span class="o">=</span> <span class="n">sources_without_schema</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> -</span><span id="Resolver-427"><a href="#Resolver-427"><span class="linenos">427</span></a> -</span><span id="Resolver-428"><a href="#Resolver-428"><span class="linenos">428</span></a> <span class="k">if</span> <span class="n">table_name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="p">:</span> -</span><span id="Resolver-429"><a href="#Resolver-429"><span class="linenos">429</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="n">table_name</span><span class="p">)</span> +</span><span id="Resolver-396"><a href="#Resolver-396"><span class="linenos">396</span></a><span class="sd"> This is a class so we can lazily load some things and easily share them across functions.</span> +</span><span id="Resolver-397"><a href="#Resolver-397"><span class="linenos">397</span></a><span class="sd"> """</span> +</span><span id="Resolver-398"><a href="#Resolver-398"><span class="linenos">398</span></a> +</span><span id="Resolver-399"><a href="#Resolver-399"><span class="linenos">399</span></a> <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">scope</span><span class="p">,</span> <span class="n">schema</span><span class="p">):</span> +</span><span id="Resolver-400"><a href="#Resolver-400"><span class="linenos">400</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span> <span class="o">=</span> <span class="n">scope</span> +</span><span id="Resolver-401"><a href="#Resolver-401"><span class="linenos">401</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">schema</span> <span class="o">=</span> <span class="n">schema</span> +</span><span id="Resolver-402"><a href="#Resolver-402"><span class="linenos">402</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span> <span class="o">=</span> <span class="kc">None</span> +</span><span id="Resolver-403"><a href="#Resolver-403"><span class="linenos">403</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span> <span class="o">=</span> <span class="kc">None</span> +</span><span id="Resolver-404"><a href="#Resolver-404"><span class="linenos">404</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> <span class="o">=</span> <span class="kc">None</span> +</span><span id="Resolver-405"><a href="#Resolver-405"><span class="linenos">405</span></a> +</span><span id="Resolver-406"><a href="#Resolver-406"><span class="linenos">406</span></a> <span class="k">def</span> <span class="nf">get_table</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">column_name</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">exp</span><span class="o">.</span><span class="n">Identifier</span><span class="p">]:</span> +</span><span id="Resolver-407"><a href="#Resolver-407"><span class="linenos">407</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="Resolver-408"><a href="#Resolver-408"><span class="linenos">408</span></a><span class="sd"> Get the table for a column name.</span> +</span><span id="Resolver-409"><a href="#Resolver-409"><span class="linenos">409</span></a> +</span><span id="Resolver-410"><a href="#Resolver-410"><span class="linenos">410</span></a><span class="sd"> Args:</span> +</span><span id="Resolver-411"><a href="#Resolver-411"><span class="linenos">411</span></a><span class="sd"> column_name: The column name to find the table for.</span> +</span><span id="Resolver-412"><a href="#Resolver-412"><span class="linenos">412</span></a><span class="sd"> Returns:</span> +</span><span id="Resolver-413"><a href="#Resolver-413"><span class="linenos">413</span></a><span class="sd"> The table name if it can be found/inferred.</span> +</span><span id="Resolver-414"><a href="#Resolver-414"><span class="linenos">414</span></a><span class="sd"> """</span> +</span><span id="Resolver-415"><a href="#Resolver-415"><span class="linenos">415</span></a> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> +</span><span id="Resolver-416"><a href="#Resolver-416"><span class="linenos">416</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_unambiguous_columns</span><span class="p">(</span> +</span><span id="Resolver-417"><a href="#Resolver-417"><span class="linenos">417</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_get_all_source_columns</span><span class="p">()</span> +</span><span id="Resolver-418"><a href="#Resolver-418"><span class="linenos">418</span></a> <span class="p">)</span> +</span><span id="Resolver-419"><a href="#Resolver-419"><span class="linenos">419</span></a> +</span><span id="Resolver-420"><a href="#Resolver-420"><span class="linenos">420</span></a> <span class="n">table_name</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">column_name</span><span class="p">)</span> +</span><span id="Resolver-421"><a href="#Resolver-421"><span class="linenos">421</span></a> +</span><span id="Resolver-422"><a href="#Resolver-422"><span class="linenos">422</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">table_name</span><span class="p">:</span> +</span><span id="Resolver-423"><a href="#Resolver-423"><span class="linenos">423</span></a> <span class="n">sources_without_schema</span> <span class="o">=</span> <span class="nb">tuple</span><span class="p">(</span> +</span><span id="Resolver-424"><a href="#Resolver-424"><span class="linenos">424</span></a> <span class="n">source</span> +</span><span id="Resolver-425"><a href="#Resolver-425"><span class="linenos">425</span></a> <span class="k">for</span> <span class="n">source</span><span class="p">,</span> <span class="n">columns</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_all_source_columns</span><span class="p">()</span><span class="o">.</span><span class="n">items</span><span class="p">()</span> +</span><span id="Resolver-426"><a href="#Resolver-426"><span class="linenos">426</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">columns</span> <span class="ow">or</span> <span class="s2">"*"</span> <span class="ow">in</span> <span class="n">columns</span> +</span><span id="Resolver-427"><a href="#Resolver-427"><span class="linenos">427</span></a> <span class="p">)</span> +</span><span id="Resolver-428"><a href="#Resolver-428"><span class="linenos">428</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">sources_without_schema</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span> +</span><span id="Resolver-429"><a href="#Resolver-429"><span class="linenos">429</span></a> <span class="n">table_name</span> <span class="o">=</span> <span class="n">sources_without_schema</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> </span><span id="Resolver-430"><a href="#Resolver-430"><span class="linenos">430</span></a> -</span><span id="Resolver-431"><a href="#Resolver-431"><span class="linenos">431</span></a> <span class="n">node</span><span class="p">,</span> <span class="n">_</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">table_name</span><span class="p">)</span> -</span><span id="Resolver-432"><a href="#Resolver-432"><span class="linenos">432</span></a> -</span><span id="Resolver-433"><a href="#Resolver-433"><span class="linenos">433</span></a> <span class="k">if</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">Subqueryable</span><span class="p">):</span> -</span><span id="Resolver-434"><a href="#Resolver-434"><span class="linenos">434</span></a> <span class="k">while</span> <span class="n">node</span> <span class="ow">and</span> <span class="n">node</span><span class="o">.</span><span class="n">alias</span> <span class="o">!=</span> <span class="n">table_name</span><span class="p">:</span> -</span><span id="Resolver-435"><a href="#Resolver-435"><span class="linenos">435</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">node</span><span class="o">.</span><span class="n">parent</span> -</span><span id="Resolver-436"><a href="#Resolver-436"><span class="linenos">436</span></a> -</span><span id="Resolver-437"><a href="#Resolver-437"><span class="linenos">437</span></a> <span class="n">node_alias</span> <span class="o">=</span> <span class="n">node</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">"alias"</span><span class="p">)</span> -</span><span id="Resolver-438"><a href="#Resolver-438"><span class="linenos">438</span></a> <span class="k">if</span> <span class="n">node_alias</span><span class="p">:</span> -</span><span id="Resolver-439"><a href="#Resolver-439"><span class="linenos">439</span></a> <span class="k">return</span> <span class="n">node_alias</span><span class="o">.</span><span class="n">this</span> -</span><span id="Resolver-440"><a href="#Resolver-440"><span class="linenos">440</span></a> -</span><span id="Resolver-441"><a href="#Resolver-441"><span class="linenos">441</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span> -</span><span id="Resolver-442"><a href="#Resolver-442"><span class="linenos">442</span></a> <span class="n">table_name</span><span class="p">,</span> <span class="n">quoted</span><span class="o">=</span><span class="n">node</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">quoted</span> <span class="k">if</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">Table</span><span class="p">)</span> <span class="k">else</span> <span class="kc">None</span> -</span><span id="Resolver-443"><a href="#Resolver-443"><span class="linenos">443</span></a> <span class="p">)</span> -</span><span id="Resolver-444"><a href="#Resolver-444"><span class="linenos">444</span></a> -</span><span id="Resolver-445"><a href="#Resolver-445"><span class="linenos">445</span></a> <span class="nd">@property</span> -</span><span id="Resolver-446"><a href="#Resolver-446"><span class="linenos">446</span></a> <span class="k">def</span> <span class="nf">all_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> -</span><span id="Resolver-447"><a href="#Resolver-447"><span class="linenos">447</span></a><span class="w"> </span><span class="sd">"""All available columns of all sources in this scope"""</span> -</span><span id="Resolver-448"><a href="#Resolver-448"><span class="linenos">448</span></a> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> -</span><span id="Resolver-449"><a href="#Resolver-449"><span class="linenos">449</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> <span class="o">=</span> <span class="p">{</span> -</span><span id="Resolver-450"><a href="#Resolver-450"><span class="linenos">450</span></a> <span class="n">column</span> <span class="k">for</span> <span class="n">columns</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_all_source_columns</span><span class="p">()</span><span class="o">.</span><span class="n">values</span><span class="p">()</span> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">columns</span> -</span><span id="Resolver-451"><a href="#Resolver-451"><span class="linenos">451</span></a> <span class="p">}</span> -</span><span id="Resolver-452"><a href="#Resolver-452"><span class="linenos">452</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> -</span><span id="Resolver-453"><a href="#Resolver-453"><span class="linenos">453</span></a> -</span><span id="Resolver-454"><a href="#Resolver-454"><span class="linenos">454</span></a> <span class="k">def</span> <span class="nf">get_source_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">only_visible</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span> -</span><span id="Resolver-455"><a href="#Resolver-455"><span class="linenos">455</span></a><span class="w"> </span><span class="sd">"""Resolve the source columns for a given source `name`"""</span> -</span><span id="Resolver-456"><a href="#Resolver-456"><span class="linenos">456</span></a> <span class="k">if</span> <span class="n">name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">:</span> -</span><span id="Resolver-457"><a href="#Resolver-457"><span class="linenos">457</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Unknown table: </span><span class="si">{</span><span class="n">name</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> -</span><span id="Resolver-458"><a href="#Resolver-458"><span class="linenos">458</span></a> -</span><span id="Resolver-459"><a href="#Resolver-459"><span class="linenos">459</span></a> <span class="n">source</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">[</span><span class="n">name</span><span class="p">]</span> -</span><span id="Resolver-460"><a href="#Resolver-460"><span class="linenos">460</span></a> -</span><span id="Resolver-461"><a href="#Resolver-461"><span class="linenos">461</span></a> <span class="c1"># If referencing a table, return the columns from the schema</span> -</span><span id="Resolver-462"><a href="#Resolver-462"><span class="linenos">462</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span><span class="p">):</span> -</span><span id="Resolver-463"><a href="#Resolver-463"><span class="linenos">463</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">schema</span><span class="o">.</span><span class="n">column_names</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">only_visible</span><span class="p">)</span> -</span><span id="Resolver-464"><a href="#Resolver-464"><span class="linenos">464</span></a> -</span><span id="Resolver-465"><a href="#Resolver-465"><span class="linenos">465</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">Scope</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</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">Values</span><span class="p">):</span> -</span><span id="Resolver-466"><a href="#Resolver-466"><span class="linenos">466</span></a> <span class="k">return</span> <span class="n">source</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">alias_column_names</span> +</span><span id="Resolver-431"><a href="#Resolver-431"><span class="linenos">431</span></a> <span class="k">if</span> <span class="n">table_name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="p">:</span> +</span><span id="Resolver-432"><a href="#Resolver-432"><span class="linenos">432</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="n">table_name</span><span class="p">)</span> +</span><span id="Resolver-433"><a href="#Resolver-433"><span class="linenos">433</span></a> +</span><span id="Resolver-434"><a href="#Resolver-434"><span class="linenos">434</span></a> <span class="n">node</span><span class="p">,</span> <span class="n">_</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">table_name</span><span class="p">)</span> +</span><span id="Resolver-435"><a href="#Resolver-435"><span class="linenos">435</span></a> +</span><span id="Resolver-436"><a href="#Resolver-436"><span class="linenos">436</span></a> <span class="k">if</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">Subqueryable</span><span class="p">):</span> +</span><span id="Resolver-437"><a href="#Resolver-437"><span class="linenos">437</span></a> <span class="k">while</span> <span class="n">node</span> <span class="ow">and</span> <span class="n">node</span><span class="o">.</span><span class="n">alias</span> <span class="o">!=</span> <span class="n">table_name</span><span class="p">:</span> +</span><span id="Resolver-438"><a href="#Resolver-438"><span class="linenos">438</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">node</span><span class="o">.</span><span class="n">parent</span> +</span><span id="Resolver-439"><a href="#Resolver-439"><span class="linenos">439</span></a> +</span><span id="Resolver-440"><a href="#Resolver-440"><span class="linenos">440</span></a> <span class="n">node_alias</span> <span class="o">=</span> <span class="n">node</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">"alias"</span><span class="p">)</span> +</span><span id="Resolver-441"><a href="#Resolver-441"><span class="linenos">441</span></a> <span class="k">if</span> <span class="n">node_alias</span><span class="p">:</span> +</span><span id="Resolver-442"><a href="#Resolver-442"><span class="linenos">442</span></a> <span class="k">return</span> <span class="n">node_alias</span><span class="o">.</span><span class="n">this</span> +</span><span id="Resolver-443"><a href="#Resolver-443"><span class="linenos">443</span></a> +</span><span id="Resolver-444"><a href="#Resolver-444"><span class="linenos">444</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span> +</span><span id="Resolver-445"><a href="#Resolver-445"><span class="linenos">445</span></a> <span class="n">table_name</span><span class="p">,</span> <span class="n">quoted</span><span class="o">=</span><span class="n">node</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">quoted</span> <span class="k">if</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">Table</span><span class="p">)</span> <span class="k">else</span> <span class="kc">None</span> +</span><span id="Resolver-446"><a href="#Resolver-446"><span class="linenos">446</span></a> <span class="p">)</span> +</span><span id="Resolver-447"><a href="#Resolver-447"><span class="linenos">447</span></a> +</span><span id="Resolver-448"><a href="#Resolver-448"><span class="linenos">448</span></a> <span class="nd">@property</span> +</span><span id="Resolver-449"><a href="#Resolver-449"><span class="linenos">449</span></a> <span class="k">def</span> <span class="nf">all_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> +</span><span id="Resolver-450"><a href="#Resolver-450"><span class="linenos">450</span></a><span class="w"> </span><span class="sd">"""All available columns of all sources in this scope"""</span> +</span><span id="Resolver-451"><a href="#Resolver-451"><span class="linenos">451</span></a> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> +</span><span id="Resolver-452"><a href="#Resolver-452"><span class="linenos">452</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> <span class="o">=</span> <span class="p">{</span> +</span><span id="Resolver-453"><a href="#Resolver-453"><span class="linenos">453</span></a> <span class="n">column</span> <span class="k">for</span> <span class="n">columns</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_all_source_columns</span><span class="p">()</span><span class="o">.</span><span class="n">values</span><span class="p">()</span> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">columns</span> +</span><span id="Resolver-454"><a href="#Resolver-454"><span class="linenos">454</span></a> <span class="p">}</span> +</span><span id="Resolver-455"><a href="#Resolver-455"><span class="linenos">455</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> +</span><span id="Resolver-456"><a href="#Resolver-456"><span class="linenos">456</span></a> +</span><span id="Resolver-457"><a href="#Resolver-457"><span class="linenos">457</span></a> <span class="k">def</span> <span class="nf">get_source_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">only_visible</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span> +</span><span id="Resolver-458"><a href="#Resolver-458"><span class="linenos">458</span></a><span class="w"> </span><span class="sd">"""Resolve the source columns for a given source `name`"""</span> +</span><span id="Resolver-459"><a href="#Resolver-459"><span class="linenos">459</span></a> <span class="k">if</span> <span class="n">name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">:</span> +</span><span id="Resolver-460"><a href="#Resolver-460"><span class="linenos">460</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Unknown table: </span><span class="si">{</span><span class="n">name</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> +</span><span id="Resolver-461"><a href="#Resolver-461"><span class="linenos">461</span></a> +</span><span id="Resolver-462"><a href="#Resolver-462"><span class="linenos">462</span></a> <span class="n">source</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">[</span><span class="n">name</span><span class="p">]</span> +</span><span id="Resolver-463"><a href="#Resolver-463"><span class="linenos">463</span></a> +</span><span id="Resolver-464"><a href="#Resolver-464"><span class="linenos">464</span></a> <span class="c1"># If referencing a table, return the columns from the schema</span> +</span><span id="Resolver-465"><a href="#Resolver-465"><span class="linenos">465</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span><span class="p">):</span> +</span><span id="Resolver-466"><a href="#Resolver-466"><span class="linenos">466</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">schema</span><span class="o">.</span><span class="n">column_names</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">only_visible</span><span class="p">)</span> </span><span id="Resolver-467"><a href="#Resolver-467"><span class="linenos">467</span></a> -</span><span id="Resolver-468"><a href="#Resolver-468"><span class="linenos">468</span></a> <span class="c1"># Otherwise, if referencing another scope, return that scope's named selects</span> -</span><span id="Resolver-469"><a href="#Resolver-469"><span class="linenos">469</span></a> <span class="k">return</span> <span class="n">source</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">named_selects</span> +</span><span id="Resolver-468"><a href="#Resolver-468"><span class="linenos">468</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">Scope</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</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">Values</span><span class="p">):</span> +</span><span id="Resolver-469"><a href="#Resolver-469"><span class="linenos">469</span></a> <span class="k">return</span> <span class="n">source</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">alias_column_names</span> </span><span id="Resolver-470"><a href="#Resolver-470"><span class="linenos">470</span></a> -</span><span id="Resolver-471"><a href="#Resolver-471"><span class="linenos">471</span></a> <span class="k">def</span> <span class="nf">_get_all_source_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> -</span><span id="Resolver-472"><a href="#Resolver-472"><span class="linenos">472</span></a> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> -</span><span id="Resolver-473"><a href="#Resolver-473"><span class="linenos">473</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span> <span class="o">=</span> <span class="p">{</span> -</span><span id="Resolver-474"><a href="#Resolver-474"><span class="linenos">474</span></a> <span class="n">k</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_source_columns</span><span class="p">(</span><span class="n">k</span><span class="p">)</span> -</span><span id="Resolver-475"><a href="#Resolver-475"><span class="linenos">475</span></a> <span class="k">for</span> <span class="n">k</span> <span class="ow">in</span> <span class="n">itertools</span><span class="o">.</span><span class="n">chain</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">lateral_sources</span><span class="p">)</span> -</span><span id="Resolver-476"><a href="#Resolver-476"><span class="linenos">476</span></a> <span class="p">}</span> -</span><span id="Resolver-477"><a href="#Resolver-477"><span class="linenos">477</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span> -</span><span id="Resolver-478"><a href="#Resolver-478"><span class="linenos">478</span></a> -</span><span id="Resolver-479"><a href="#Resolver-479"><span class="linenos">479</span></a> <span class="k">def</span> <span class="nf">_get_unambiguous_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">source_columns</span><span class="p">):</span> -</span><span id="Resolver-480"><a href="#Resolver-480"><span class="linenos">480</span></a><span class="w"> </span><span class="sd">"""</span> -</span><span id="Resolver-481"><a href="#Resolver-481"><span class="linenos">481</span></a><span class="sd"> Find all the unambiguous columns in sources.</span> -</span><span id="Resolver-482"><a href="#Resolver-482"><span class="linenos">482</span></a> -</span><span id="Resolver-483"><a href="#Resolver-483"><span class="linenos">483</span></a><span class="sd"> Args:</span> -</span><span id="Resolver-484"><a href="#Resolver-484"><span class="linenos">484</span></a><span class="sd"> source_columns (dict): Mapping of names to source columns</span> -</span><span id="Resolver-485"><a href="#Resolver-485"><span class="linenos">485</span></a><span class="sd"> Returns:</span> -</span><span id="Resolver-486"><a href="#Resolver-486"><span class="linenos">486</span></a><span class="sd"> dict: Mapping of column name to source name</span> -</span><span id="Resolver-487"><a href="#Resolver-487"><span class="linenos">487</span></a><span class="sd"> """</span> -</span><span id="Resolver-488"><a href="#Resolver-488"><span class="linenos">488</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">source_columns</span><span class="p">:</span> -</span><span id="Resolver-489"><a href="#Resolver-489"><span class="linenos">489</span></a> <span class="k">return</span> <span class="p">{}</span> -</span><span id="Resolver-490"><a href="#Resolver-490"><span class="linenos">490</span></a> -</span><span id="Resolver-491"><a href="#Resolver-491"><span class="linenos">491</span></a> <span class="n">source_columns</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">source_columns</span><span class="o">.</span><span class="n">items</span><span class="p">())</span> -</span><span id="Resolver-492"><a href="#Resolver-492"><span class="linenos">492</span></a> -</span><span id="Resolver-493"><a href="#Resolver-493"><span class="linenos">493</span></a> <span class="n">first_table</span><span class="p">,</span> <span class="n">first_columns</span> <span class="o">=</span> <span class="n">source_columns</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> -</span><span id="Resolver-494"><a href="#Resolver-494"><span class="linenos">494</span></a> <span class="n">unambiguous_columns</span> <span class="o">=</span> <span class="p">{</span><span class="n">col</span><span class="p">:</span> <span class="n">first_table</span> <span class="k">for</span> <span class="n">col</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_find_unique_columns</span><span class="p">(</span><span class="n">first_columns</span><span class="p">)}</span> -</span><span id="Resolver-495"><a href="#Resolver-495"><span class="linenos">495</span></a> <span class="n">all_columns</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">unambiguous_columns</span><span class="p">)</span> -</span><span id="Resolver-496"><a href="#Resolver-496"><span class="linenos">496</span></a> -</span><span id="Resolver-497"><a href="#Resolver-497"><span class="linenos">497</span></a> <span class="k">for</span> <span class="n">table</span><span class="p">,</span> <span class="n">columns</span> <span class="ow">in</span> <span class="n">source_columns</span><span class="p">[</span><span class="mi">1</span><span class="p">:]:</span> -</span><span id="Resolver-498"><a href="#Resolver-498"><span class="linenos">498</span></a> <span class="n">unique</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_find_unique_columns</span><span class="p">(</span><span class="n">columns</span><span class="p">)</span> -</span><span id="Resolver-499"><a href="#Resolver-499"><span class="linenos">499</span></a> <span class="n">ambiguous</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">all_columns</span><span class="p">)</span><span class="o">.</span><span class="n">intersection</span><span class="p">(</span><span class="n">unique</span><span class="p">)</span> -</span><span id="Resolver-500"><a href="#Resolver-500"><span class="linenos">500</span></a> <span class="n">all_columns</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">columns</span><span class="p">)</span> -</span><span id="Resolver-501"><a href="#Resolver-501"><span class="linenos">501</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">ambiguous</span><span class="p">:</span> -</span><span id="Resolver-502"><a href="#Resolver-502"><span class="linenos">502</span></a> <span class="n">unambiguous_columns</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="n">column</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span> -</span><span id="Resolver-503"><a href="#Resolver-503"><span class="linenos">503</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">unique</span><span class="o">.</span><span class="n">difference</span><span class="p">(</span><span class="n">ambiguous</span><span class="p">):</span> -</span><span id="Resolver-504"><a href="#Resolver-504"><span class="linenos">504</span></a> <span class="n">unambiguous_columns</span><span class="p">[</span><span class="n">column</span><span class="p">]</span> <span class="o">=</span> <span class="n">table</span> -</span><span id="Resolver-505"><a href="#Resolver-505"><span class="linenos">505</span></a> -</span><span id="Resolver-506"><a href="#Resolver-506"><span class="linenos">506</span></a> <span class="k">return</span> <span class="n">unambiguous_columns</span> -</span><span id="Resolver-507"><a href="#Resolver-507"><span class="linenos">507</span></a> -</span><span id="Resolver-508"><a href="#Resolver-508"><span class="linenos">508</span></a> <span class="nd">@staticmethod</span> -</span><span id="Resolver-509"><a href="#Resolver-509"><span class="linenos">509</span></a> <span class="k">def</span> <span class="nf">_find_unique_columns</span><span class="p">(</span><span class="n">columns</span><span class="p">):</span> -</span><span id="Resolver-510"><a href="#Resolver-510"><span class="linenos">510</span></a><span class="w"> </span><span class="sd">"""</span> -</span><span id="Resolver-511"><a href="#Resolver-511"><span class="linenos">511</span></a><span class="sd"> Find the unique columns in a list of columns.</span> -</span><span id="Resolver-512"><a href="#Resolver-512"><span class="linenos">512</span></a> -</span><span id="Resolver-513"><a href="#Resolver-513"><span class="linenos">513</span></a><span class="sd"> Example:</span> -</span><span id="Resolver-514"><a href="#Resolver-514"><span class="linenos">514</span></a><span class="sd"> >>> sorted(Resolver._find_unique_columns(["a", "b", "b", "c"]))</span> -</span><span id="Resolver-515"><a href="#Resolver-515"><span class="linenos">515</span></a><span class="sd"> ['a', 'c']</span> -</span><span id="Resolver-516"><a href="#Resolver-516"><span class="linenos">516</span></a> -</span><span id="Resolver-517"><a href="#Resolver-517"><span class="linenos">517</span></a><span class="sd"> This is necessary because duplicate column names are ambiguous.</span> -</span><span id="Resolver-518"><a href="#Resolver-518"><span class="linenos">518</span></a><span class="sd"> """</span> -</span><span id="Resolver-519"><a href="#Resolver-519"><span class="linenos">519</span></a> <span class="n">counts</span> <span class="o">=</span> <span class="p">{}</span> -</span><span id="Resolver-520"><a href="#Resolver-520"><span class="linenos">520</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">columns</span><span class="p">:</span> -</span><span id="Resolver-521"><a href="#Resolver-521"><span class="linenos">521</span></a> <span class="n">counts</span><span class="p">[</span><span class="n">column</span><span class="p">]</span> <span class="o">=</span> <span class="n">counts</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="mi">0</span><span class="p">)</span> <span class="o">+</span> <span class="mi">1</span> -</span><span id="Resolver-522"><a href="#Resolver-522"><span class="linenos">522</span></a> <span class="k">return</span> <span class="p">{</span><span class="n">column</span> <span class="k">for</span> <span class="n">column</span><span class="p">,</span> <span class="n">count</span> <span class="ow">in</span> <span class="n">counts</span><span class="o">.</span><span class="n">items</span><span class="p">()</span> <span class="k">if</span> <span class="n">count</span> <span class="o">==</span> <span class="mi">1</span><span class="p">}</span> +</span><span id="Resolver-471"><a href="#Resolver-471"><span class="linenos">471</span></a> <span class="c1"># Otherwise, if referencing another scope, return that scope's named selects</span> +</span><span id="Resolver-472"><a href="#Resolver-472"><span class="linenos">472</span></a> <span class="k">return</span> <span class="n">source</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">named_selects</span> +</span><span id="Resolver-473"><a href="#Resolver-473"><span class="linenos">473</span></a> +</span><span id="Resolver-474"><a href="#Resolver-474"><span class="linenos">474</span></a> <span class="k">def</span> <span class="nf">_get_all_source_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> +</span><span id="Resolver-475"><a href="#Resolver-475"><span class="linenos">475</span></a> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> +</span><span id="Resolver-476"><a href="#Resolver-476"><span class="linenos">476</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span> <span class="o">=</span> <span class="p">{</span> +</span><span id="Resolver-477"><a href="#Resolver-477"><span class="linenos">477</span></a> <span class="n">k</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_source_columns</span><span class="p">(</span><span class="n">k</span><span class="p">)</span> +</span><span id="Resolver-478"><a href="#Resolver-478"><span class="linenos">478</span></a> <span class="k">for</span> <span class="n">k</span> <span class="ow">in</span> <span class="n">itertools</span><span class="o">.</span><span class="n">chain</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">lateral_sources</span><span class="p">)</span> +</span><span id="Resolver-479"><a href="#Resolver-479"><span class="linenos">479</span></a> <span class="p">}</span> +</span><span id="Resolver-480"><a href="#Resolver-480"><span class="linenos">480</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span> +</span><span id="Resolver-481"><a href="#Resolver-481"><span class="linenos">481</span></a> +</span><span id="Resolver-482"><a href="#Resolver-482"><span class="linenos">482</span></a> <span class="k">def</span> <span class="nf">_get_unambiguous_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">source_columns</span><span class="p">):</span> +</span><span id="Resolver-483"><a href="#Resolver-483"><span class="linenos">483</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="Resolver-484"><a href="#Resolver-484"><span class="linenos">484</span></a><span class="sd"> Find all the unambiguous columns in sources.</span> +</span><span id="Resolver-485"><a href="#Resolver-485"><span class="linenos">485</span></a> +</span><span id="Resolver-486"><a href="#Resolver-486"><span class="linenos">486</span></a><span class="sd"> Args:</span> +</span><span id="Resolver-487"><a href="#Resolver-487"><span class="linenos">487</span></a><span class="sd"> source_columns (dict): Mapping of names to source columns</span> +</span><span id="Resolver-488"><a href="#Resolver-488"><span class="linenos">488</span></a><span class="sd"> Returns:</span> +</span><span id="Resolver-489"><a href="#Resolver-489"><span class="linenos">489</span></a><span class="sd"> dict: Mapping of column name to source name</span> +</span><span id="Resolver-490"><a href="#Resolver-490"><span class="linenos">490</span></a><span class="sd"> """</span> +</span><span id="Resolver-491"><a href="#Resolver-491"><span class="linenos">491</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">source_columns</span><span class="p">:</span> +</span><span id="Resolver-492"><a href="#Resolver-492"><span class="linenos">492</span></a> <span class="k">return</span> <span class="p">{}</span> +</span><span id="Resolver-493"><a href="#Resolver-493"><span class="linenos">493</span></a> +</span><span id="Resolver-494"><a href="#Resolver-494"><span class="linenos">494</span></a> <span class="n">source_columns</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">source_columns</span><span class="o">.</span><span class="n">items</span><span class="p">())</span> +</span><span id="Resolver-495"><a href="#Resolver-495"><span class="linenos">495</span></a> +</span><span id="Resolver-496"><a href="#Resolver-496"><span class="linenos">496</span></a> <span class="n">first_table</span><span class="p">,</span> <span class="n">first_columns</span> <span class="o">=</span> <span class="n">source_columns</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> +</span><span id="Resolver-497"><a href="#Resolver-497"><span class="linenos">497</span></a> <span class="n">unambiguous_columns</span> <span class="o">=</span> <span class="p">{</span><span class="n">col</span><span class="p">:</span> <span class="n">first_table</span> <span class="k">for</span> <span class="n">col</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_find_unique_columns</span><span class="p">(</span><span class="n">first_columns</span><span class="p">)}</span> +</span><span id="Resolver-498"><a href="#Resolver-498"><span class="linenos">498</span></a> <span class="n">all_columns</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">unambiguous_columns</span><span class="p">)</span> +</span><span id="Resolver-499"><a href="#Resolver-499"><span class="linenos">499</span></a> +</span><span id="Resolver-500"><a href="#Resolver-500"><span class="linenos">500</span></a> <span class="k">for</span> <span class="n">table</span><span class="p">,</span> <span class="n">columns</span> <span class="ow">in</span> <span class="n">source_columns</span><span class="p">[</span><span class="mi">1</span><span class="p">:]:</span> +</span><span id="Resolver-501"><a href="#Resolver-501"><span class="linenos">501</span></a> <span class="n">unique</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_find_unique_columns</span><span class="p">(</span><span class="n">columns</span><span class="p">)</span> +</span><span id="Resolver-502"><a href="#Resolver-502"><span class="linenos">502</span></a> <span class="n">ambiguous</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">all_columns</span><span class="p">)</span><span class="o">.</span><span class="n">intersection</span><span class="p">(</span><span class="n">unique</span><span class="p">)</span> +</span><span id="Resolver-503"><a href="#Resolver-503"><span class="linenos">503</span></a> <span class="n">all_columns</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">columns</span><span class="p">)</span> +</span><span id="Resolver-504"><a href="#Resolver-504"><span class="linenos">504</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">ambiguous</span><span class="p">:</span> +</span><span id="Resolver-505"><a href="#Resolver-505"><span class="linenos">505</span></a> <span class="n">unambiguous_columns</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="n">column</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span> +</span><span id="Resolver-506"><a href="#Resolver-506"><span class="linenos">506</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">unique</span><span class="o">.</span><span class="n">difference</span><span class="p">(</span><span class="n">ambiguous</span><span class="p">):</span> +</span><span id="Resolver-507"><a href="#Resolver-507"><span class="linenos">507</span></a> <span class="n">unambiguous_columns</span><span class="p">[</span><span class="n">column</span><span class="p">]</span> <span class="o">=</span> <span class="n">table</span> +</span><span id="Resolver-508"><a href="#Resolver-508"><span class="linenos">508</span></a> +</span><span id="Resolver-509"><a href="#Resolver-509"><span class="linenos">509</span></a> <span class="k">return</span> <span class="n">unambiguous_columns</span> +</span><span id="Resolver-510"><a href="#Resolver-510"><span class="linenos">510</span></a> +</span><span id="Resolver-511"><a href="#Resolver-511"><span class="linenos">511</span></a> <span class="nd">@staticmethod</span> +</span><span id="Resolver-512"><a href="#Resolver-512"><span class="linenos">512</span></a> <span class="k">def</span> <span class="nf">_find_unique_columns</span><span class="p">(</span><span class="n">columns</span><span class="p">):</span> +</span><span id="Resolver-513"><a href="#Resolver-513"><span class="linenos">513</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="Resolver-514"><a href="#Resolver-514"><span class="linenos">514</span></a><span class="sd"> Find the unique columns in a list of columns.</span> +</span><span id="Resolver-515"><a href="#Resolver-515"><span class="linenos">515</span></a> +</span><span id="Resolver-516"><a href="#Resolver-516"><span class="linenos">516</span></a><span class="sd"> Example:</span> +</span><span id="Resolver-517"><a href="#Resolver-517"><span class="linenos">517</span></a><span class="sd"> >>> sorted(Resolver._find_unique_columns(["a", "b", "b", "c"]))</span> +</span><span id="Resolver-518"><a href="#Resolver-518"><span class="linenos">518</span></a><span class="sd"> ['a', 'c']</span> +</span><span id="Resolver-519"><a href="#Resolver-519"><span class="linenos">519</span></a> +</span><span id="Resolver-520"><a href="#Resolver-520"><span class="linenos">520</span></a><span class="sd"> This is necessary because duplicate column names are ambiguous.</span> +</span><span id="Resolver-521"><a href="#Resolver-521"><span class="linenos">521</span></a><span class="sd"> """</span> +</span><span id="Resolver-522"><a href="#Resolver-522"><span class="linenos">522</span></a> <span class="n">counts</span> <span class="o">=</span> <span class="p">{}</span> +</span><span id="Resolver-523"><a href="#Resolver-523"><span class="linenos">523</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">columns</span><span class="p">:</span> +</span><span id="Resolver-524"><a href="#Resolver-524"><span class="linenos">524</span></a> <span class="n">counts</span><span class="p">[</span><span class="n">column</span><span class="p">]</span> <span class="o">=</span> <span class="n">counts</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="mi">0</span><span class="p">)</span> <span class="o">+</span> <span class="mi">1</span> +</span><span id="Resolver-525"><a href="#Resolver-525"><span class="linenos">525</span></a> <span class="k">return</span> <span class="p">{</span><span class="n">column</span> <span class="k">for</span> <span class="n">column</span><span class="p">,</span> <span class="n">count</span> <span class="ow">in</span> <span class="n">counts</span><span class="o">.</span><span class="n">items</span><span class="p">()</span> <span class="k">if</span> <span class="n">count</span> <span class="o">==</span> <span class="mi">1</span><span class="p">}</span> </span></pre></div> @@ -876,12 +879,12 @@ </div> <a class="headerlink" href="#Resolver.__init__"></a> - <div class="pdoc-code codehilite"><pre><span></span><span id="Resolver.__init__-396"><a href="#Resolver.__init__-396"><span class="linenos">396</span></a> <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">scope</span><span class="p">,</span> <span class="n">schema</span><span class="p">):</span> -</span><span id="Resolver.__init__-397"><a href="#Resolver.__init__-397"><span class="linenos">397</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span> <span class="o">=</span> <span class="n">scope</span> -</span><span id="Resolver.__init__-398"><a href="#Resolver.__init__-398"><span class="linenos">398</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">schema</span> <span class="o">=</span> <span class="n">schema</span> -</span><span id="Resolver.__init__-399"><a href="#Resolver.__init__-399"><span class="linenos">399</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span> <span class="o">=</span> <span class="kc">None</span> -</span><span id="Resolver.__init__-400"><a href="#Resolver.__init__-400"><span class="linenos">400</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span> <span class="o">=</span> <span class="kc">None</span> -</span><span id="Resolver.__init__-401"><a href="#Resolver.__init__-401"><span class="linenos">401</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> <span class="o">=</span> <span class="kc">None</span> + <div class="pdoc-code codehilite"><pre><span></span><span id="Resolver.__init__-399"><a href="#Resolver.__init__-399"><span class="linenos">399</span></a> <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">scope</span><span class="p">,</span> <span class="n">schema</span><span class="p">):</span> +</span><span id="Resolver.__init__-400"><a href="#Resolver.__init__-400"><span class="linenos">400</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span> <span class="o">=</span> <span class="n">scope</span> +</span><span id="Resolver.__init__-401"><a href="#Resolver.__init__-401"><span class="linenos">401</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">schema</span> <span class="o">=</span> <span class="n">schema</span> +</span><span id="Resolver.__init__-402"><a href="#Resolver.__init__-402"><span class="linenos">402</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span> <span class="o">=</span> <span class="kc">None</span> +</span><span id="Resolver.__init__-403"><a href="#Resolver.__init__-403"><span class="linenos">403</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span> <span class="o">=</span> <span class="kc">None</span> +</span><span id="Resolver.__init__-404"><a href="#Resolver.__init__-404"><span class="linenos">404</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> <span class="o">=</span> <span class="kc">None</span> </span></pre></div> @@ -899,47 +902,47 @@ </div> <a class="headerlink" href="#Resolver.get_table"></a> - <div class="pdoc-code codehilite"><pre><span></span><span id="Resolver.get_table-403"><a href="#Resolver.get_table-403"><span class="linenos">403</span></a> <span class="k">def</span> <span class="nf">get_table</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">column_name</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">exp</span><span class="o">.</span><span class="n">Identifier</span><span class="p">]:</span> -</span><span id="Resolver.get_table-404"><a href="#Resolver.get_table-404"><span class="linenos">404</span></a><span class="w"> </span><span class="sd">"""</span> -</span><span id="Resolver.get_table-405"><a href="#Resolver.get_table-405"><span class="linenos">405</span></a><span class="sd"> Get the table for a column name.</span> -</span><span id="Resolver.get_table-406"><a href="#Resolver.get_table-406"><span class="linenos">406</span></a> -</span><span id="Resolver.get_table-407"><a href="#Resolver.get_table-407"><span class="linenos">407</span></a><span class="sd"> Args:</span> -</span><span id="Resolver.get_table-408"><a href="#Resolver.get_table-408"><span class="linenos">408</span></a><span class="sd"> column_name: The column name to find the table for.</span> -</span><span id="Resolver.get_table-409"><a href="#Resolver.get_table-409"><span class="linenos">409</span></a><span class="sd"> Returns:</span> -</span><span id="Resolver.get_table-410"><a href="#Resolver.get_table-410"><span class="linenos">410</span></a><span class="sd"> The table name if it can be found/inferred.</span> -</span><span id="Resolver.get_table-411"><a href="#Resolver.get_table-411"><span class="linenos">411</span></a><span class="sd"> """</span> -</span><span id="Resolver.get_table-412"><a href="#Resolver.get_table-412"><span class="linenos">412</span></a> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> -</span><span id="Resolver.get_table-413"><a href="#Resolver.get_table-413"><span class="linenos">413</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_unambiguous_columns</span><span class="p">(</span> -</span><span id="Resolver.get_table-414"><a href="#Resolver.get_table-414"><span class="linenos">414</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_get_all_source_columns</span><span class="p">()</span> -</span><span id="Resolver.get_table-415"><a href="#Resolver.get_table-415"><span class="linenos">415</span></a> <span class="p">)</span> -</span><span id="Resolver.get_table-416"><a href="#Resolver.get_table-416"><span class="linenos">416</span></a> -</span><span id="Resolver.get_table-417"><a href="#Resolver.get_table-417"><span class="linenos">417</span></a> <span class="n">table_name</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">column_name</span><span class="p">)</span> -</span><span id="Resolver.get_table-418"><a href="#Resolver.get_table-418"><span class="linenos">418</span></a> -</span><span id="Resolver.get_table-419"><a href="#Resolver.get_table-419"><span class="linenos">419</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">table_name</span><span class="p">:</span> -</span><span id="Resolver.get_table-420"><a href="#Resolver.get_table-420"><span class="linenos">420</span></a> <span class="n">sources_without_schema</span> <span class="o">=</span> <span class="nb">tuple</span><span class="p">(</span> -</span><span id="Resolver.get_table-421"><a href="#Resolver.get_table-421"><span class="linenos">421</span></a> <span class="n">source</span> -</span><span id="Resolver.get_table-422"><a href="#Resolver.get_table-422"><span class="linenos">422</span></a> <span class="k">for</span> <span class="n">source</span><span class="p">,</span> <span class="n">columns</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_all_source_columns</span><span class="p">()</span><span class="o">.</span><span class="n">items</span><span class="p">()</span> -</span><span id="Resolver.get_table-423"><a href="#Resolver.get_table-423"><span class="linenos">423</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">columns</span> <span class="ow">or</span> <span class="s2">"*"</span> <span class="ow">in</span> <span class="n">columns</span> -</span><span id="Resolver.get_table-424"><a href="#Resolver.get_table-424"><span class="linenos">424</span></a> <span class="p">)</span> -</span><span id="Resolver.get_table-425"><a href="#Resolver.get_table-425"><span class="linenos">425</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">sources_without_schema</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span> -</span><span id="Resolver.get_table-426"><a href="#Resolver.get_table-426"><span class="linenos">426</span></a> <span class="n">table_name</span> <span class="o">=</span> <span class="n">sources_without_schema</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> -</span><span id="Resolver.get_table-427"><a href="#Resolver.get_table-427"><span class="linenos">427</span></a> -</span><span id="Resolver.get_table-428"><a href="#Resolver.get_table-428"><span class="linenos">428</span></a> <span class="k">if</span> <span class="n">table_name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="p">:</span> -</span><span id="Resolver.get_table-429"><a href="#Resolver.get_table-429"><span class="linenos">429</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="n">table_name</span><span class="p">)</span> + <div class="pdoc-code codehilite"><pre><span></span><span id="Resolver.get_table-406"><a href="#Resolver.get_table-406"><span class="linenos">406</span></a> <span class="k">def</span> <span class="nf">get_table</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">column_name</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">exp</span><span class="o">.</span><span class="n">Identifier</span><span class="p">]:</span> +</span><span id="Resolver.get_table-407"><a href="#Resolver.get_table-407"><span class="linenos">407</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="Resolver.get_table-408"><a href="#Resolver.get_table-408"><span class="linenos">408</span></a><span class="sd"> Get the table for a column name.</span> +</span><span id="Resolver.get_table-409"><a href="#Resolver.get_table-409"><span class="linenos">409</span></a> +</span><span id="Resolver.get_table-410"><a href="#Resolver.get_table-410"><span class="linenos">410</span></a><span class="sd"> Args:</span> +</span><span id="Resolver.get_table-411"><a href="#Resolver.get_table-411"><span class="linenos">411</span></a><span class="sd"> column_name: The column name to find the table for.</span> +</span><span id="Resolver.get_table-412"><a href="#Resolver.get_table-412"><span class="linenos">412</span></a><span class="sd"> Returns:</span> +</span><span id="Resolver.get_table-413"><a href="#Resolver.get_table-413"><span class="linenos">413</span></a><span class="sd"> The table name if it can be found/inferred.</span> +</span><span id="Resolver.get_table-414"><a href="#Resolver.get_table-414"><span class="linenos">414</span></a><span class="sd"> """</span> +</span><span id="Resolver.get_table-415"><a href="#Resolver.get_table-415"><span class="linenos">415</span></a> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> +</span><span id="Resolver.get_table-416"><a href="#Resolver.get_table-416"><span class="linenos">416</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_unambiguous_columns</span><span class="p">(</span> +</span><span id="Resolver.get_table-417"><a href="#Resolver.get_table-417"><span class="linenos">417</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_get_all_source_columns</span><span class="p">()</span> +</span><span id="Resolver.get_table-418"><a href="#Resolver.get_table-418"><span class="linenos">418</span></a> <span class="p">)</span> +</span><span id="Resolver.get_table-419"><a href="#Resolver.get_table-419"><span class="linenos">419</span></a> +</span><span id="Resolver.get_table-420"><a href="#Resolver.get_table-420"><span class="linenos">420</span></a> <span class="n">table_name</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">column_name</span><span class="p">)</span> +</span><span id="Resolver.get_table-421"><a href="#Resolver.get_table-421"><span class="linenos">421</span></a> +</span><span id="Resolver.get_table-422"><a href="#Resolver.get_table-422"><span class="linenos">422</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">table_name</span><span class="p">:</span> +</span><span id="Resolver.get_table-423"><a href="#Resolver.get_table-423"><span class="linenos">423</span></a> <span class="n">sources_without_schema</span> <span class="o">=</span> <span class="nb">tuple</span><span class="p">(</span> +</span><span id="Resolver.get_table-424"><a href="#Resolver.get_table-424"><span class="linenos">424</span></a> <span class="n">source</span> +</span><span id="Resolver.get_table-425"><a href="#Resolver.get_table-425"><span class="linenos">425</span></a> <span class="k">for</span> <span class="n">source</span><span class="p">,</span> <span class="n">columns</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_all_source_columns</span><span class="p">()</span><span class="o">.</span><span class="n">items</span><span class="p">()</span> +</span><span id="Resolver.get_table-426"><a href="#Resolver.get_table-426"><span class="linenos">426</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">columns</span> <span class="ow">or</span> <span class="s2">"*"</span> <span class="ow">in</span> <span class="n">columns</span> +</span><span id="Resolver.get_table-427"><a href="#Resolver.get_table-427"><span class="linenos">427</span></a> <span class="p">)</span> +</span><span id="Resolver.get_table-428"><a href="#Resolver.get_table-428"><span class="linenos">428</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">sources_without_schema</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span> +</span><span id="Resolver.get_table-429"><a href="#Resolver.get_table-429"><span class="linenos">429</span></a> <span class="n">table_name</span> <span class="o">=</span> <span class="n">sources_without_schema</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> </span><span id="Resolver.get_table-430"><a href="#Resolver.get_table-430"><span class="linenos">430</span></a> -</span><span id="Resolver.get_table-431"><a href="#Resolver.get_table-431"><span class="linenos">431</span></a> <span class="n">node</span><span class="p">,</span> <span class="n">_</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">table_name</span><span class="p">)</span> -</span><span id="Resolver.get_table-432"><a href="#Resolver.get_table-432"><span class="linenos">432</span></a> -</span><span id="Resolver.get_table-433"><a href="#Resolver.get_table-433"><span class="linenos">433</span></a> <span class="k">if</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">Subqueryable</span><span class="p">):</span> -</span><span id="Resolver.get_table-434"><a href="#Resolver.get_table-434"><span class="linenos">434</span></a> <span class="k">while</span> <span class="n">node</span> <span class="ow">and</span> <span class="n">node</span><span class="o">.</span><span class="n">alias</span> <span class="o">!=</span> <span class="n">table_name</span><span class="p">:</span> -</span><span id="Resolver.get_table-435"><a href="#Resolver.get_table-435"><span class="linenos">435</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">node</span><span class="o">.</span><span class="n">parent</span> -</span><span id="Resolver.get_table-436"><a href="#Resolver.get_table-436"><span class="linenos">436</span></a> -</span><span id="Resolver.get_table-437"><a href="#Resolver.get_table-437"><span class="linenos">437</span></a> <span class="n">node_alias</span> <span class="o">=</span> <span class="n">node</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">"alias"</span><span class="p">)</span> -</span><span id="Resolver.get_table-438"><a href="#Resolver.get_table-438"><span class="linenos">438</span></a> <span class="k">if</span> <span class="n">node_alias</span><span class="p">:</span> -</span><span id="Resolver.get_table-439"><a href="#Resolver.get_table-439"><span class="linenos">439</span></a> <span class="k">return</span> <span class="n">node_alias</span><span class="o">.</span><span class="n">this</span> -</span><span id="Resolver.get_table-440"><a href="#Resolver.get_table-440"><span class="linenos">440</span></a> -</span><span id="Resolver.get_table-441"><a href="#Resolver.get_table-441"><span class="linenos">441</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span> -</span><span id="Resolver.get_table-442"><a href="#Resolver.get_table-442"><span class="linenos">442</span></a> <span class="n">table_name</span><span class="p">,</span> <span class="n">quoted</span><span class="o">=</span><span class="n">node</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">quoted</span> <span class="k">if</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">Table</span><span class="p">)</span> <span class="k">else</span> <span class="kc">None</span> -</span><span id="Resolver.get_table-443"><a href="#Resolver.get_table-443"><span class="linenos">443</span></a> <span class="p">)</span> +</span><span id="Resolver.get_table-431"><a href="#Resolver.get_table-431"><span class="linenos">431</span></a> <span class="k">if</span> <span class="n">table_name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="p">:</span> +</span><span id="Resolver.get_table-432"><a href="#Resolver.get_table-432"><span class="linenos">432</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="n">table_name</span><span class="p">)</span> +</span><span id="Resolver.get_table-433"><a href="#Resolver.get_table-433"><span class="linenos">433</span></a> +</span><span id="Resolver.get_table-434"><a href="#Resolver.get_table-434"><span class="linenos">434</span></a> <span class="n">node</span><span class="p">,</span> <span class="n">_</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">table_name</span><span class="p">)</span> +</span><span id="Resolver.get_table-435"><a href="#Resolver.get_table-435"><span class="linenos">435</span></a> +</span><span id="Resolver.get_table-436"><a href="#Resolver.get_table-436"><span class="linenos">436</span></a> <span class="k">if</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">Subqueryable</span><span class="p">):</span> +</span><span id="Resolver.get_table-437"><a href="#Resolver.get_table-437"><span class="linenos">437</span></a> <span class="k">while</span> <span class="n">node</span> <span class="ow">and</span> <span class="n">node</span><span class="o">.</span><span class="n">alias</span> <span class="o">!=</span> <span class="n">table_name</span><span class="p">:</span> +</span><span id="Resolver.get_table-438"><a href="#Resolver.get_table-438"><span class="linenos">438</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">node</span><span class="o">.</span><span class="n">parent</span> +</span><span id="Resolver.get_table-439"><a href="#Resolver.get_table-439"><span class="linenos">439</span></a> +</span><span id="Resolver.get_table-440"><a href="#Resolver.get_table-440"><span class="linenos">440</span></a> <span class="n">node_alias</span> <span class="o">=</span> <span class="n">node</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">"alias"</span><span class="p">)</span> +</span><span id="Resolver.get_table-441"><a href="#Resolver.get_table-441"><span class="linenos">441</span></a> <span class="k">if</span> <span class="n">node_alias</span><span class="p">:</span> +</span><span id="Resolver.get_table-442"><a href="#Resolver.get_table-442"><span class="linenos">442</span></a> <span class="k">return</span> <span class="n">node_alias</span><span class="o">.</span><span class="n">this</span> +</span><span id="Resolver.get_table-443"><a href="#Resolver.get_table-443"><span class="linenos">443</span></a> +</span><span id="Resolver.get_table-444"><a href="#Resolver.get_table-444"><span class="linenos">444</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span> +</span><span id="Resolver.get_table-445"><a href="#Resolver.get_table-445"><span class="linenos">445</span></a> <span class="n">table_name</span><span class="p">,</span> <span class="n">quoted</span><span class="o">=</span><span class="n">node</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">quoted</span> <span class="k">if</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">Table</span><span class="p">)</span> <span class="k">else</span> <span class="kc">None</span> +</span><span id="Resolver.get_table-446"><a href="#Resolver.get_table-446"><span class="linenos">446</span></a> <span class="p">)</span> </span></pre></div> @@ -984,22 +987,22 @@ </div> <a class="headerlink" href="#Resolver.get_source_columns"></a> - <div class="pdoc-code codehilite"><pre><span></span><span id="Resolver.get_source_columns-454"><a href="#Resolver.get_source_columns-454"><span class="linenos">454</span></a> <span class="k">def</span> <span class="nf">get_source_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">only_visible</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span> -</span><span id="Resolver.get_source_columns-455"><a href="#Resolver.get_source_columns-455"><span class="linenos">455</span></a><span class="w"> </span><span class="sd">"""Resolve the source columns for a given source `name`"""</span> -</span><span id="Resolver.get_source_columns-456"><a href="#Resolver.get_source_columns-456"><span class="linenos">456</span></a> <span class="k">if</span> <span class="n">name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">:</span> -</span><span id="Resolver.get_source_columns-457"><a href="#Resolver.get_source_columns-457"><span class="linenos">457</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Unknown table: </span><span class="si">{</span><span class="n">name</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> -</span><span id="Resolver.get_source_columns-458"><a href="#Resolver.get_source_columns-458"><span class="linenos">458</span></a> -</span><span id="Resolver.get_source_columns-459"><a href="#Resolver.get_source_columns-459"><span class="linenos">459</span></a> <span class="n">source</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">[</span><span class="n">name</span><span class="p">]</span> -</span><span id="Resolver.get_source_columns-460"><a href="#Resolver.get_source_columns-460"><span class="linenos">460</span></a> -</span><span id="Resolver.get_source_columns-461"><a href="#Resolver.get_source_columns-461"><span class="linenos">461</span></a> <span class="c1"># If referencing a table, return the columns from the schema</span> -</span><span id="Resolver.get_source_columns-462"><a href="#Resolver.get_source_columns-462"><span class="linenos">462</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span><span class="p">):</span> -</span><span id="Resolver.get_source_columns-463"><a href="#Resolver.get_source_columns-463"><span class="linenos">463</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">schema</span><span class="o">.</span><span class="n">column_names</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">only_visible</span><span class="p">)</span> -</span><span id="Resolver.get_source_columns-464"><a href="#Resolver.get_source_columns-464"><span class="linenos">464</span></a> -</span><span id="Resolver.get_source_columns-465"><a href="#Resolver.get_source_columns-465"><span class="linenos">465</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">Scope</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</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">Values</span><span class="p">):</span> -</span><span id="Resolver.get_source_columns-466"><a href="#Resolver.get_source_columns-466"><span class="linenos">466</span></a> <span class="k">return</span> <span class="n">source</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">alias_column_names</span> + <div class="pdoc-code codehilite"><pre><span></span><span id="Resolver.get_source_columns-457"><a href="#Resolver.get_source_columns-457"><span class="linenos">457</span></a> <span class="k">def</span> <span class="nf">get_source_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">only_visible</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span> +</span><span id="Resolver.get_source_columns-458"><a href="#Resolver.get_source_columns-458"><span class="linenos">458</span></a><span class="w"> </span><span class="sd">"""Resolve the source columns for a given source `name`"""</span> +</span><span id="Resolver.get_source_columns-459"><a href="#Resolver.get_source_columns-459"><span class="linenos">459</span></a> <span class="k">if</span> <span class="n">name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">:</span> +</span><span id="Resolver.get_source_columns-460"><a href="#Resolver.get_source_columns-460"><span class="linenos">460</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Unknown table: </span><span class="si">{</span><span class="n">name</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> +</span><span id="Resolver.get_source_columns-461"><a href="#Resolver.get_source_columns-461"><span class="linenos">461</span></a> +</span><span id="Resolver.get_source_columns-462"><a href="#Resolver.get_source_columns-462"><span class="linenos">462</span></a> <span class="n">source</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">[</span><span class="n">name</span><span class="p">]</span> +</span><span id="Resolver.get_source_columns-463"><a href="#Resolver.get_source_columns-463"><span class="linenos">463</span></a> +</span><span id="Resolver.get_source_columns-464"><a href="#Resolver.get_source_columns-464"><span class="linenos">464</span></a> <span class="c1"># If referencing a table, return the columns from the schema</span> +</span><span id="Resolver.get_source_columns-465"><a href="#Resolver.get_source_columns-465"><span class="linenos">465</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span><span class="p">):</span> +</span><span id="Resolver.get_source_columns-466"><a href="#Resolver.get_source_columns-466"><span class="linenos">466</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">schema</span><span class="o">.</span><span class="n">column_names</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">only_visible</span><span class="p">)</span> </span><span id="Resolver.get_source_columns-467"><a href="#Resolver.get_source_columns-467"><span class="linenos">467</span></a> -</span><span id="Resolver.get_source_columns-468"><a href="#Resolver.get_source_columns-468"><span class="linenos">468</span></a> <span class="c1"># Otherwise, if referencing another scope, return that scope's named selects</span> -</span><span id="Resolver.get_source_columns-469"><a href="#Resolver.get_source_columns-469"><span class="linenos">469</span></a> <span class="k">return</span> <span class="n">source</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">named_selects</span> +</span><span id="Resolver.get_source_columns-468"><a href="#Resolver.get_source_columns-468"><span class="linenos">468</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">Scope</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</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">Values</span><span class="p">):</span> +</span><span id="Resolver.get_source_columns-469"><a href="#Resolver.get_source_columns-469"><span class="linenos">469</span></a> <span class="k">return</span> <span class="n">source</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">alias_column_names</span> +</span><span id="Resolver.get_source_columns-470"><a href="#Resolver.get_source_columns-470"><span class="linenos">470</span></a> +</span><span id="Resolver.get_source_columns-471"><a href="#Resolver.get_source_columns-471"><span class="linenos">471</span></a> <span class="c1"># Otherwise, if referencing another scope, return that scope's named selects</span> +</span><span id="Resolver.get_source_columns-472"><a href="#Resolver.get_source_columns-472"><span class="linenos">472</span></a> <span class="k">return</span> <span class="n">source</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">named_selects</span> </span></pre></div> |