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200ms;filter:grayscale(100%);}.pdoc .attribution:hover{opacity:1;filter:grayscale(0%);}.pdoc .attribution img{margin-left:5px;height:35px;vertical-align:middle;width:70px;transition:all 200ms;}.pdoc table{display:block;width:max-content;max-width:100%;overflow:auto;margin-bottom:1rem;}.pdoc table th{font-weight:600;}.pdoc table th, .pdoc table td{padding:6px 13px;border:1px solid var(--accent2);}</style> + <style>/*! custom.css */</style></head> +<body> + <nav class="pdoc"> + <label id="navtoggle" for="togglestate" class="pdoc-button"><svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'><path stroke-linecap='round' stroke="currentColor" stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/></svg></label> + <input id="togglestate" type="checkbox" aria-hidden="true" tabindex="-1"> + <div> <a class="pdoc-button module-list-button" href="../executor.html"> +<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-box-arrow-in-left" viewBox="0 0 16 16"> + <path fill-rule="evenodd" d="M10 3.5a.5.5 0 0 0-.5-.5h-8a.5.5 0 0 0-.5.5v9a.5.5 0 0 0 .5.5h8a.5.5 0 0 0 .5-.5v-2a.5.5 0 0 1 1 0v2A1.5 1.5 0 0 1 9.5 14h-8A1.5 1.5 0 0 1 0 12.5v-9A1.5 1.5 0 0 1 1.5 2h8A1.5 1.5 0 0 1 11 3.5v2a.5.5 0 0 1-1 0v-2z"/> + <path fill-rule="evenodd" d="M4.146 8.354a.5.5 0 0 1 0-.708l3-3a.5.5 0 1 1 .708.708L5.707 7.5H14.5a.5.5 0 0 1 0 1H5.707l2.147 2.146a.5.5 0 0 1-.708.708l-3-3z"/> +</svg> sqlglot.executor</a> + + + <input type="search" placeholder="Search..." role="searchbox" aria-label="search" + pattern=".+" required> + + + + <h2>API Documentation</h2> + <ul class="memberlist"> + <li> + <a class="class" href="#PythonExecutor">PythonExecutor</a> + <ul class="memberlist"> + <li> + <a class="function" href="#PythonExecutor.__init__">PythonExecutor</a> + </li> + <li> + <a class="function" href="#PythonExecutor.execute">execute</a> + </li> + <li> + <a class="function" href="#PythonExecutor.generate">generate</a> + </li> + <li> + <a class="function" href="#PythonExecutor.generate_tuple">generate_tuple</a> + </li> + <li> + <a class="function" href="#PythonExecutor.context">context</a> + </li> + <li> + <a class="function" href="#PythonExecutor.table">table</a> + </li> + <li> + <a class="function" href="#PythonExecutor.scan">scan</a> + </li> + <li> + <a class="function" href="#PythonExecutor.static">static</a> + </li> + <li> + <a class="function" href="#PythonExecutor.scan_table">scan_table</a> + </li> + <li> + <a class="function" href="#PythonExecutor.scan_csv">scan_csv</a> + </li> + <li> + <a class="function" href="#PythonExecutor.join">join</a> + </li> + <li> + <a class="function" href="#PythonExecutor.nested_loop_join">nested_loop_join</a> + </li> + <li> + <a class="function" href="#PythonExecutor.hash_join">hash_join</a> + </li> + <li> + <a class="function" href="#PythonExecutor.aggregate">aggregate</a> + </li> + <li> + <a class="function" href="#PythonExecutor.sort">sort</a> + </li> + <li> + <a class="function" href="#PythonExecutor.set_operation">set_operation</a> + </li> + </ul> + + </li> + <li> + <a class="class" href="#Python">Python</a> + <ul class="memberlist"> + <li> + <a class="function" href="#Python.__init__">Python</a> + </li> + <li> + <a class="class" href="#Python.Tokenizer">Python.Tokenizer</a> + <ul class="memberlist"> + </ul> + + </li> + <li> + <a class="class" href="#Python.Generator">Python.Generator</a> + <ul class="memberlist"> + </ul> + + </li> + </ul> + + </li> + </ul> + + + <footer>Copyright (c) 2023 Toby Mao</footer> + + <a class="attribution" title="pdoc: Python API documentation generator" href="https://pdoc.dev" target="_blank"> + built with <span class="visually-hidden">pdoc</span><img + alt="pdoc logo" + 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+ </a> +</div> + </nav> + <main class="pdoc"> + <section class="module-info"> + <a class="pdoc-button git-button" href="https://github.com/tobymao/sqlglot/tree/main/sqlglot/executor/python.py">Edit on GitHub</a> + <h1 class="modulename"> +<a href="./../../sqlglot.html">sqlglot</a><wbr>.<a href="./../executor.html">executor</a><wbr>.python </h1> + + + <input id="mod-python-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> + + <label class="view-source-button" for="mod-python-view-source"><span>View Source</span></label> + + <div class="pdoc-code codehilite"><pre><span></span><span id="L-1"><a href="#L-1"><span class="linenos"> 1</span></a><span class="kn">import</span> <span class="nn">ast</span> +</span><span id="L-2"><a href="#L-2"><span class="linenos"> 2</span></a><span class="kn">import</span> <span class="nn">collections</span> +</span><span id="L-3"><a href="#L-3"><span class="linenos"> 3</span></a><span class="kn">import</span> <span class="nn">itertools</span> +</span><span id="L-4"><a href="#L-4"><span class="linenos"> 4</span></a><span class="kn">import</span> <span class="nn">math</span> +</span><span id="L-5"><a href="#L-5"><span class="linenos"> 5</span></a> +</span><span id="L-6"><a href="#L-6"><span class="linenos"> 6</span></a><span class="kn">from</span> <span class="nn">sqlglot</span> <span class="kn">import</span> <span class="n">exp</span><span class="p">,</span> <span class="n">generator</span><span class="p">,</span> <span class="n">planner</span><span class="p">,</span> <span class="n">tokens</span> +</span><span id="L-7"><a href="#L-7"><span class="linenos"> 7</span></a><span class="kn">from</span> <span class="nn">sqlglot.dialects.dialect</span> <span class="kn">import</span> <span class="n">Dialect</span><span class="p">,</span> <span class="n">inline_array_sql</span> +</span><span id="L-8"><a href="#L-8"><span class="linenos"> 8</span></a><span class="kn">from</span> <span class="nn">sqlglot.errors</span> <span class="kn">import</span> <span class="n">ExecuteError</span> +</span><span id="L-9"><a href="#L-9"><span class="linenos"> 9</span></a><span class="kn">from</span> <span class="nn">sqlglot.executor.context</span> <span class="kn">import</span> <span class="n">Context</span> +</span><span id="L-10"><a href="#L-10"><span class="linenos"> 10</span></a><span class="kn">from</span> <span class="nn">sqlglot.executor.env</span> <span class="kn">import</span> <span class="n">ENV</span> +</span><span id="L-11"><a href="#L-11"><span class="linenos"> 11</span></a><span class="kn">from</span> <span class="nn">sqlglot.executor.table</span> <span class="kn">import</span> <span class="n">RowReader</span><span class="p">,</span> <span class="n">Table</span> +</span><span id="L-12"><a href="#L-12"><span class="linenos"> 12</span></a><span class="kn">from</span> <span class="nn">sqlglot.helper</span> <span class="kn">import</span> <span class="n">csv_reader</span><span class="p">,</span> <span class="n">subclasses</span> +</span><span id="L-13"><a href="#L-13"><span class="linenos"> 13</span></a> +</span><span id="L-14"><a href="#L-14"><span class="linenos"> 14</span></a> +</span><span id="L-15"><a href="#L-15"><span class="linenos"> 15</span></a><span class="k">class</span> <span class="nc">PythonExecutor</span><span class="p">:</span> +</span><span id="L-16"><a href="#L-16"><span class="linenos"> 16</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">env</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">tables</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span> +</span><span id="L-17"><a href="#L-17"><span class="linenos"> 17</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">generator</span> <span class="o">=</span> <span class="n">Python</span><span class="p">()</span><span class="o">.</span><span class="n">generator</span><span class="p">(</span><span class="n">identify</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span> <span class="n">comments</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span> +</span><span id="L-18"><a href="#L-18"><span class="linenos"> 18</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">env</span> <span class="o">=</span> <span class="p">{</span><span class="o">**</span><span class="n">ENV</span><span class="p">,</span> <span class="o">**</span><span class="p">(</span><span class="n">env</span> <span class="ow">or</span> <span class="p">{})}</span> +</span><span id="L-19"><a href="#L-19"><span class="linenos"> 19</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">tables</span> <span class="o">=</span> <span class="n">tables</span> <span class="ow">or</span> <span class="p">{}</span> +</span><span id="L-20"><a href="#L-20"><span class="linenos"> 20</span></a> +</span><span id="L-21"><a href="#L-21"><span class="linenos"> 21</span></a> <span class="k">def</span> <span class="nf">execute</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">plan</span><span class="p">):</span> +</span><span id="L-22"><a href="#L-22"><span class="linenos"> 22</span></a> <span class="n">running</span> <span class="o">=</span> <span class="nb">set</span><span class="p">()</span> +</span><span id="L-23"><a href="#L-23"><span class="linenos"> 23</span></a> <span class="n">finished</span> <span class="o">=</span> <span class="nb">set</span><span class="p">()</span> +</span><span id="L-24"><a href="#L-24"><span class="linenos"> 24</span></a> <span class="n">queue</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">plan</span><span class="o">.</span><span class="n">leaves</span><span class="p">)</span> +</span><span id="L-25"><a href="#L-25"><span class="linenos"> 25</span></a> <span class="n">contexts</span> <span class="o">=</span> <span class="p">{}</span> +</span><span id="L-26"><a href="#L-26"><span class="linenos"> 26</span></a> +</span><span id="L-27"><a href="#L-27"><span class="linenos"> 27</span></a> <span class="k">while</span> <span class="n">queue</span><span class="p">:</span> +</span><span id="L-28"><a href="#L-28"><span class="linenos"> 28</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">queue</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span> +</span><span id="L-29"><a href="#L-29"><span class="linenos"> 29</span></a> <span class="k">try</span><span class="p">:</span> +</span><span id="L-30"><a href="#L-30"><span class="linenos"> 30</span></a> <span class="n">context</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">(</span> +</span><span id="L-31"><a href="#L-31"><span class="linenos"> 31</span></a> <span class="p">{</span> +</span><span id="L-32"><a href="#L-32"><span class="linenos"> 32</span></a> <span class="n">name</span><span class="p">:</span> <span class="n">table</span> +</span><span id="L-33"><a href="#L-33"><span class="linenos"> 33</span></a> <span class="k">for</span> <span class="n">dep</span> <span class="ow">in</span> <span class="n">node</span><span class="o">.</span><span class="n">dependencies</span> +</span><span id="L-34"><a href="#L-34"><span class="linenos"> 34</span></a> <span class="k">for</span> <span class="n">name</span><span class="p">,</span> <span class="n">table</span> <span class="ow">in</span> <span class="n">contexts</span><span class="p">[</span><span class="n">dep</span><span class="p">]</span><span class="o">.</span><span class="n">tables</span><span class="o">.</span><span class="n">items</span><span class="p">()</span> +</span><span id="L-35"><a href="#L-35"><span class="linenos"> 35</span></a> <span class="p">}</span> +</span><span id="L-36"><a href="#L-36"><span class="linenos"> 36</span></a> <span class="p">)</span> +</span><span id="L-37"><a href="#L-37"><span class="linenos"> 37</span></a> <span class="n">running</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> +</span><span id="L-38"><a href="#L-38"><span class="linenos"> 38</span></a> +</span><span id="L-39"><a href="#L-39"><span class="linenos"> 39</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">planner</span><span class="o">.</span><span class="n">Scan</span><span class="p">):</span> +</span><span id="L-40"><a href="#L-40"><span class="linenos"> 40</span></a> <span class="n">contexts</span><span class="p">[</span><span class="n">node</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">scan</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">context</span><span class="p">)</span> +</span><span id="L-41"><a href="#L-41"><span class="linenos"> 41</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">planner</span><span class="o">.</span><span class="n">Aggregate</span><span class="p">):</span> +</span><span id="L-42"><a href="#L-42"><span class="linenos"> 42</span></a> <span class="n">contexts</span><span class="p">[</span><span class="n">node</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">aggregate</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">context</span><span class="p">)</span> +</span><span id="L-43"><a href="#L-43"><span class="linenos"> 43</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">planner</span><span class="o">.</span><span class="n">Join</span><span class="p">):</span> +</span><span id="L-44"><a href="#L-44"><span class="linenos"> 44</span></a> <span class="n">contexts</span><span class="p">[</span><span class="n">node</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">context</span><span class="p">)</span> +</span><span id="L-45"><a href="#L-45"><span class="linenos"> 45</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">planner</span><span class="o">.</span><span class="n">Sort</span><span class="p">):</span> +</span><span id="L-46"><a href="#L-46"><span class="linenos"> 46</span></a> <span class="n">contexts</span><span class="p">[</span><span class="n">node</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">sort</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">context</span><span class="p">)</span> +</span><span id="L-47"><a href="#L-47"><span class="linenos"> 47</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">planner</span><span class="o">.</span><span class="n">SetOperation</span><span class="p">):</span> +</span><span id="L-48"><a href="#L-48"><span class="linenos"> 48</span></a> <span class="n">contexts</span><span class="p">[</span><span class="n">node</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">set_operation</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">context</span><span class="p">)</span> +</span><span id="L-49"><a href="#L-49"><span class="linenos"> 49</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="L-50"><a href="#L-50"><span class="linenos"> 50</span></a> <span class="k">raise</span> <span class="ne">NotImplementedError</span> +</span><span id="L-51"><a href="#L-51"><span class="linenos"> 51</span></a> +</span><span id="L-52"><a href="#L-52"><span class="linenos"> 52</span></a> <span class="n">running</span><span class="o">.</span><span class="n">remove</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> +</span><span id="L-53"><a href="#L-53"><span class="linenos"> 53</span></a> <span class="n">finished</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> +</span><span id="L-54"><a href="#L-54"><span class="linenos"> 54</span></a> +</span><span id="L-55"><a href="#L-55"><span class="linenos"> 55</span></a> <span class="k">for</span> <span class="n">dep</span> <span class="ow">in</span> <span class="n">node</span><span class="o">.</span><span class="n">dependents</span><span class="p">:</span> +</span><span id="L-56"><a href="#L-56"><span class="linenos"> 56</span></a> <span class="k">if</span> <span class="n">dep</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">running</span> <span class="ow">and</span> <span class="nb">all</span><span class="p">(</span><span class="n">d</span> <span class="ow">in</span> <span class="n">contexts</span> <span class="k">for</span> <span class="n">d</span> <span class="ow">in</span> <span class="n">dep</span><span class="o">.</span><span class="n">dependencies</span><span class="p">):</span> +</span><span id="L-57"><a href="#L-57"><span class="linenos"> 57</span></a> <span class="n">queue</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">dep</span><span class="p">)</span> +</span><span id="L-58"><a href="#L-58"><span class="linenos"> 58</span></a> +</span><span id="L-59"><a href="#L-59"><span class="linenos"> 59</span></a> <span class="k">for</span> <span class="n">dep</span> <span class="ow">in</span> <span class="n">node</span><span class="o">.</span><span class="n">dependencies</span><span class="p">:</span> +</span><span id="L-60"><a href="#L-60"><span class="linenos"> 60</span></a> <span class="k">if</span> <span class="nb">all</span><span class="p">(</span><span class="n">d</span> <span class="ow">in</span> <span class="n">finished</span> <span class="k">for</span> <span class="n">d</span> <span class="ow">in</span> <span class="n">dep</span><span class="o">.</span><span class="n">dependents</span><span class="p">):</span> +</span><span id="L-61"><a href="#L-61"><span class="linenos"> 61</span></a> <span class="n">contexts</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="n">dep</span><span class="p">)</span> +</span><span id="L-62"><a href="#L-62"><span class="linenos"> 62</span></a> <span class="k">except</span> <span class="ne">Exception</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span> +</span><span id="L-63"><a href="#L-63"><span class="linenos"> 63</span></a> <span class="k">raise</span> <span class="n">ExecuteError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Step '</span><span class="si">{</span><span class="n">node</span><span class="o">.</span><span class="n">id</span><span class="si">}</span><span class="s2">' failed: </span><span class="si">{</span><span class="n">e</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> <span class="kn">from</span> <span class="nn">e</span> +</span><span id="L-64"><a href="#L-64"><span class="linenos"> 64</span></a> +</span><span id="L-65"><a href="#L-65"><span class="linenos"> 65</span></a> <span class="n">root</span> <span class="o">=</span> <span class="n">plan</span><span class="o">.</span><span class="n">root</span> +</span><span id="L-66"><a href="#L-66"><span class="linenos"> 66</span></a> <span class="k">return</span> <span class="n">contexts</span><span class="p">[</span><span class="n">root</span><span class="p">]</span><span class="o">.</span><span class="n">tables</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-67"><a href="#L-67"><span class="linenos"> 67</span></a> +</span><span id="L-68"><a href="#L-68"><span class="linenos"> 68</span></a> <span class="k">def</span> <span class="nf">generate</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">expression</span><span class="p">):</span> +</span><span id="L-69"><a href="#L-69"><span class="linenos"> 69</span></a><span class="w"> </span><span class="sd">"""Convert a SQL expression into literal Python code and compile it into bytecode."""</span> +</span><span id="L-70"><a href="#L-70"><span class="linenos"> 70</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">expression</span><span class="p">:</span> +</span><span id="L-71"><a href="#L-71"><span class="linenos"> 71</span></a> <span class="k">return</span> <span class="kc">None</span> +</span><span id="L-72"><a href="#L-72"><span class="linenos"> 72</span></a> +</span><span id="L-73"><a href="#L-73"><span class="linenos"> 73</span></a> <span class="n">sql</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generator</span><span class="o">.</span><span class="n">generate</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span> +</span><span id="L-74"><a href="#L-74"><span class="linenos"> 74</span></a> <span class="k">return</span> <span class="nb">compile</span><span class="p">(</span><span class="n">sql</span><span class="p">,</span> <span class="n">sql</span><span class="p">,</span> <span class="s2">"eval"</span><span class="p">,</span> <span class="n">optimize</span><span class="o">=</span><span class="mi">2</span><span class="p">)</span> +</span><span id="L-75"><a href="#L-75"><span class="linenos"> 75</span></a> +</span><span id="L-76"><a href="#L-76"><span class="linenos"> 76</span></a> <span class="k">def</span> <span class="nf">generate_tuple</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">expressions</span><span class="p">):</span> +</span><span id="L-77"><a href="#L-77"><span class="linenos"> 77</span></a><span class="w"> </span><span class="sd">"""Convert an array of SQL expressions into tuple of Python byte code."""</span> +</span><span id="L-78"><a href="#L-78"><span class="linenos"> 78</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">expressions</span><span class="p">:</span> +</span><span id="L-79"><a href="#L-79"><span class="linenos"> 79</span></a> <span class="k">return</span> <span class="nb">tuple</span><span class="p">()</span> +</span><span id="L-80"><a href="#L-80"><span class="linenos"> 80</span></a> <span class="k">return</span> <span class="nb">tuple</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">generate</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span> <span class="k">for</span> <span class="n">expression</span> <span class="ow">in</span> <span class="n">expressions</span><span class="p">)</span> +</span><span id="L-81"><a href="#L-81"><span class="linenos"> 81</span></a> +</span><span id="L-82"><a href="#L-82"><span class="linenos"> 82</span></a> <span class="k">def</span> <span class="nf">context</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">tables</span><span class="p">):</span> +</span><span id="L-83"><a href="#L-83"><span class="linenos"> 83</span></a> <span class="k">return</span> <span class="n">Context</span><span class="p">(</span><span class="n">tables</span><span class="p">,</span> <span class="n">env</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">env</span><span class="p">)</span> +</span><span id="L-84"><a href="#L-84"><span class="linenos"> 84</span></a> +</span><span id="L-85"><a href="#L-85"><span class="linenos"> 85</span></a> <span class="k">def</span> <span class="nf">table</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">expressions</span><span class="p">):</span> +</span><span id="L-86"><a href="#L-86"><span class="linenos"> 86</span></a> <span class="k">return</span> <span class="n">Table</span><span class="p">(</span> +</span><span id="L-87"><a href="#L-87"><span class="linenos"> 87</span></a> <span class="n">expression</span><span class="o">.</span><span class="n">alias_or_name</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="k">else</span> <span class="n">expression</span> +</span><span id="L-88"><a href="#L-88"><span class="linenos"> 88</span></a> <span class="k">for</span> <span class="n">expression</span> <span class="ow">in</span> <span class="n">expressions</span> +</span><span id="L-89"><a href="#L-89"><span class="linenos"> 89</span></a> <span class="p">)</span> +</span><span id="L-90"><a href="#L-90"><span class="linenos"> 90</span></a> +</span><span id="L-91"><a href="#L-91"><span class="linenos"> 91</span></a> <span class="k">def</span> <span class="nf">scan</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">step</span><span class="p">,</span> <span class="n">context</span><span class="p">):</span> +</span><span id="L-92"><a href="#L-92"><span class="linenos"> 92</span></a> <span class="n">source</span> <span class="o">=</span> <span class="n">step</span><span class="o">.</span><span class="n">source</span> +</span><span id="L-93"><a href="#L-93"><span class="linenos"> 93</span></a> +</span><span id="L-94"><a href="#L-94"><span class="linenos"> 94</span></a> <span class="k">if</span> <span class="n">source</span> <span class="ow">and</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">Expression</span><span class="p">):</span> +</span><span id="L-95"><a href="#L-95"><span class="linenos"> 95</span></a> <span class="n">source</span> <span class="o">=</span> <span class="n">source</span><span class="o">.</span><span class="n">name</span> <span class="ow">or</span> <span class="n">source</span><span class="o">.</span><span class="n">alias</span> +</span><span id="L-96"><a href="#L-96"><span class="linenos"> 96</span></a> +</span><span id="L-97"><a href="#L-97"><span class="linenos"> 97</span></a> <span class="n">condition</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generate</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">condition</span><span class="p">)</span> +</span><span id="L-98"><a href="#L-98"><span class="linenos"> 98</span></a> <span class="n">projections</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generate_tuple</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">projections</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">if</span> <span class="n">source</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> +</span><span id="L-101"><a href="#L-101"><span class="linenos">101</span></a> <span class="n">context</span><span class="p">,</span> <span class="n">table_iter</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">static</span><span class="p">()</span> +</span><span id="L-102"><a href="#L-102"><span class="linenos">102</span></a> <span class="k">elif</span> <span class="n">source</span> <span class="ow">in</span> <span class="n">context</span><span class="p">:</span> +</span><span id="L-103"><a href="#L-103"><span class="linenos">103</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">projections</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">condition</span><span class="p">:</span> +</span><span id="L-104"><a href="#L-104"><span class="linenos">104</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">({</span><span class="n">step</span><span class="o">.</span><span class="n">name</span><span class="p">:</span> <span class="n">context</span><span class="o">.</span><span class="n">tables</span><span class="p">[</span><span class="n">source</span><span class="p">]})</span> +</span><span id="L-105"><a href="#L-105"><span class="linenos">105</span></a> <span class="n">table_iter</span> <span class="o">=</span> <span class="n">context</span><span class="o">.</span><span class="n">table_iter</span><span class="p">(</span><span class="n">source</span><span class="p">)</span> +</span><span id="L-106"><a href="#L-106"><span class="linenos">106</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">step</span><span class="o">.</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 class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">source</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">ReadCSV</span><span class="p">):</span> +</span><span id="L-107"><a href="#L-107"><span class="linenos">107</span></a> <span class="n">table_iter</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">scan_csv</span><span class="p">(</span><span class="n">step</span><span class="p">)</span> +</span><span id="L-108"><a href="#L-108"><span class="linenos">108</span></a> <span class="n">context</span> <span class="o">=</span> <span class="nb">next</span><span class="p">(</span><span class="n">table_iter</span><span class="p">)</span> +</span><span id="L-109"><a href="#L-109"><span class="linenos">109</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="L-110"><a href="#L-110"><span class="linenos">110</span></a> <span class="n">context</span><span class="p">,</span> <span class="n">table_iter</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">scan_table</span><span class="p">(</span><span class="n">step</span><span class="p">)</span> +</span><span id="L-111"><a href="#L-111"><span class="linenos">111</span></a> +</span><span id="L-112"><a href="#L-112"><span class="linenos">112</span></a> <span class="k">if</span> <span class="n">projections</span><span class="p">:</span> +</span><span id="L-113"><a href="#L-113"><span class="linenos">113</span></a> <span class="n">sink</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">table</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">projections</span><span class="p">)</span> +</span><span id="L-114"><a href="#L-114"><span class="linenos">114</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="L-115"><a href="#L-115"><span class="linenos">115</span></a> <span class="n">sink</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">table</span><span class="p">(</span><span class="n">context</span><span class="o">.</span><span class="n">columns</span><span class="p">)</span> +</span><span id="L-116"><a href="#L-116"><span class="linenos">116</span></a> +</span><span id="L-117"><a href="#L-117"><span class="linenos">117</span></a> <span class="k">for</span> <span class="n">reader</span> <span class="ow">in</span> <span class="n">table_iter</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="nb">len</span><span class="p">(</span><span class="n">sink</span><span class="p">)</span> <span class="o">>=</span> <span class="n">step</span><span class="o">.</span><span class="n">limit</span><span class="p">:</span> +</span><span id="L-119"><a href="#L-119"><span class="linenos">119</span></a> <span class="k">break</span> +</span><span id="L-120"><a href="#L-120"><span class="linenos">120</span></a> +</span><span id="L-121"><a href="#L-121"><span class="linenos">121</span></a> <span class="k">if</span> <span class="n">condition</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">context</span><span class="o">.</span><span class="n">eval</span><span class="p">(</span><span class="n">condition</span><span class="p">):</span> +</span><span id="L-122"><a href="#L-122"><span class="linenos">122</span></a> <span class="k">continue</span> +</span><span id="L-123"><a href="#L-123"><span class="linenos">123</span></a> +</span><span id="L-124"><a href="#L-124"><span class="linenos">124</span></a> <span class="k">if</span> <span class="n">projections</span><span class="p">:</span> +</span><span id="L-125"><a href="#L-125"><span class="linenos">125</span></a> <span class="n">sink</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">context</span><span class="o">.</span><span class="n">eval_tuple</span><span class="p">(</span><span class="n">projections</span><span class="p">))</span> +</span><span id="L-126"><a href="#L-126"><span class="linenos">126</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="L-127"><a href="#L-127"><span class="linenos">127</span></a> <span class="n">sink</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">reader</span><span class="o">.</span><span class="n">row</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">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">({</span><span class="n">step</span><span class="o">.</span><span class="n">name</span><span class="p">:</span> <span class="n">sink</span><span class="p">})</span> +</span><span id="L-130"><a href="#L-130"><span class="linenos">130</span></a> +</span><span id="L-131"><a href="#L-131"><span class="linenos">131</span></a> <span class="k">def</span> <span class="nf">static</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> +</span><span id="L-132"><a href="#L-132"><span class="linenos">132</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">({}),</span> <span class="p">[</span><span class="n">RowReader</span><span class="p">(())]</span> +</span><span id="L-133"><a href="#L-133"><span class="linenos">133</span></a> +</span><span id="L-134"><a href="#L-134"><span class="linenos">134</span></a> <span class="k">def</span> <span class="nf">scan_table</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">step</span><span class="p">):</span> +</span><span id="L-135"><a href="#L-135"><span class="linenos">135</span></a> <span class="n">table</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">tables</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">source</span><span class="p">)</span> +</span><span id="L-136"><a href="#L-136"><span class="linenos">136</span></a> <span class="n">context</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">({</span><span class="n">step</span><span class="o">.</span><span class="n">source</span><span class="o">.</span><span class="n">alias_or_name</span><span class="p">:</span> <span class="n">table</span><span class="p">})</span> +</span><span id="L-137"><a href="#L-137"><span class="linenos">137</span></a> <span class="k">return</span> <span class="n">context</span><span class="p">,</span> <span class="nb">iter</span><span class="p">(</span><span class="n">table</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">def</span> <span class="nf">scan_csv</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">step</span><span class="p">):</span> +</span><span id="L-140"><a href="#L-140"><span class="linenos">140</span></a> <span class="n">alias</span> <span class="o">=</span> <span class="n">step</span><span class="o">.</span><span class="n">source</span><span class="o">.</span><span class="n">alias</span> +</span><span id="L-141"><a href="#L-141"><span class="linenos">141</span></a> <span class="n">source</span> <span class="o">=</span> <span class="n">step</span><span class="o">.</span><span class="n">source</span><span class="o">.</span><span class="n">this</span> +</span><span id="L-142"><a href="#L-142"><span class="linenos">142</span></a> +</span><span id="L-143"><a href="#L-143"><span class="linenos">143</span></a> <span class="k">with</span> <span class="n">csv_reader</span><span class="p">(</span><span class="n">source</span><span class="p">)</span> <span class="k">as</span> <span class="n">reader</span><span class="p">:</span> +</span><span id="L-144"><a href="#L-144"><span class="linenos">144</span></a> <span class="n">columns</span> <span class="o">=</span> <span class="nb">next</span><span class="p">(</span><span class="n">reader</span><span class="p">)</span> +</span><span id="L-145"><a href="#L-145"><span class="linenos">145</span></a> <span class="n">table</span> <span class="o">=</span> <span class="n">Table</span><span class="p">(</span><span class="n">columns</span><span class="p">)</span> +</span><span id="L-146"><a href="#L-146"><span class="linenos">146</span></a> <span class="n">context</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">({</span><span class="n">alias</span><span class="p">:</span> <span class="n">table</span><span class="p">})</span> +</span><span id="L-147"><a href="#L-147"><span class="linenos">147</span></a> <span class="k">yield</span> <span class="n">context</span> +</span><span id="L-148"><a href="#L-148"><span class="linenos">148</span></a> <span class="n">types</span> <span class="o">=</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="k">for</span> <span class="n">row</span> <span class="ow">in</span> <span class="n">reader</span><span class="p">:</span> +</span><span id="L-151"><a href="#L-151"><span class="linenos">151</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">types</span><span class="p">:</span> +</span><span id="L-152"><a href="#L-152"><span class="linenos">152</span></a> <span class="k">for</span> <span class="n">v</span> <span class="ow">in</span> <span class="n">row</span><span class="p">:</span> +</span><span id="L-153"><a href="#L-153"><span class="linenos">153</span></a> <span class="k">try</span><span class="p">:</span> +</span><span id="L-154"><a href="#L-154"><span class="linenos">154</span></a> <span class="n">types</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="nb">type</span><span class="p">(</span><span class="n">ast</span><span class="o">.</span><span class="n">literal_eval</span><span class="p">(</span><span class="n">v</span><span class="p">)))</span> +</span><span id="L-155"><a href="#L-155"><span class="linenos">155</span></a> <span class="k">except</span> <span class="p">(</span><span class="ne">ValueError</span><span class="p">,</span> <span class="ne">SyntaxError</span><span class="p">):</span> +</span><span id="L-156"><a href="#L-156"><span class="linenos">156</span></a> <span class="n">types</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="nb">str</span><span class="p">)</span> +</span><span id="L-157"><a href="#L-157"><span class="linenos">157</span></a> <span class="n">context</span><span class="o">.</span><span class="n">set_row</span><span class="p">(</span><span class="nb">tuple</span><span class="p">(</span><span class="n">t</span><span class="p">(</span><span class="n">v</span><span class="p">)</span> <span class="k">for</span> <span class="n">t</span><span class="p">,</span> <span class="n">v</span> <span class="ow">in</span> <span class="nb">zip</span><span class="p">(</span><span class="n">types</span><span class="p">,</span> <span class="n">row</span><span class="p">)))</span> +</span><span id="L-158"><a href="#L-158"><span class="linenos">158</span></a> <span class="k">yield</span> <span class="n">context</span><span class="o">.</span><span class="n">table</span><span class="o">.</span><span class="n">reader</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">def</span> <span class="nf">join</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">step</span><span class="p">,</span> <span class="n">context</span><span class="p">):</span> +</span><span id="L-161"><a href="#L-161"><span class="linenos">161</span></a> <span class="n">source</span> <span class="o">=</span> <span class="n">step</span><span class="o">.</span><span class="n">name</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="n">source_table</span> <span class="o">=</span> <span class="n">context</span><span class="o">.</span><span class="n">tables</span><span class="p">[</span><span class="n">source</span><span class="p">]</span> +</span><span id="L-164"><a href="#L-164"><span class="linenos">164</span></a> <span class="n">source_context</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">({</span><span class="n">source</span><span class="p">:</span> <span class="n">source_table</span><span class="p">})</span> +</span><span id="L-165"><a href="#L-165"><span class="linenos">165</span></a> <span class="n">column_ranges</span> <span class="o">=</span> <span class="p">{</span><span class="n">source</span><span class="p">:</span> <span class="nb">range</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="nb">len</span><span class="p">(</span><span class="n">source_table</span><span class="o">.</span><span class="n">columns</span><span class="p">))}</span> +</span><span id="L-166"><a href="#L-166"><span class="linenos">166</span></a> +</span><span id="L-167"><a href="#L-167"><span class="linenos">167</span></a> <span class="k">for</span> <span class="n">name</span><span class="p">,</span> <span class="n">join</span> <span class="ow">in</span> <span class="n">step</span><span class="o">.</span><span class="n">joins</span><span class="o">.</span><span class="n">items</span><span class="p">():</span> +</span><span id="L-168"><a href="#L-168"><span class="linenos">168</span></a> <span class="n">table</span> <span class="o">=</span> <span class="n">context</span><span class="o">.</span><span class="n">tables</span><span class="p">[</span><span class="n">name</span><span class="p">]</span> +</span><span id="L-169"><a href="#L-169"><span class="linenos">169</span></a> <span class="n">start</span> <span class="o">=</span> <span class="nb">max</span><span class="p">(</span><span class="n">r</span><span class="o">.</span><span class="n">stop</span> <span class="k">for</span> <span class="n">r</span> <span class="ow">in</span> <span class="n">column_ranges</span><span class="o">.</span><span class="n">values</span><span class="p">())</span> +</span><span id="L-170"><a href="#L-170"><span class="linenos">170</span></a> <span class="n">column_ranges</span><span class="p">[</span><span class="n">name</span><span class="p">]</span> <span class="o">=</span> <span class="nb">range</span><span class="p">(</span><span class="n">start</span><span class="p">,</span> <span class="nb">len</span><span class="p">(</span><span class="n">table</span><span class="o">.</span><span class="n">columns</span><span class="p">)</span> <span class="o">+</span> <span class="n">start</span><span class="p">)</span> +</span><span id="L-171"><a href="#L-171"><span class="linenos">171</span></a> <span class="n">join_context</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</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-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">if</span> <span class="n">join</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"source_key"</span><span class="p">):</span> +</span><span id="L-174"><a href="#L-174"><span class="linenos">174</span></a> <span class="n">table</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">hash_join</span><span class="p">(</span><span class="n">join</span><span class="p">,</span> <span class="n">source_context</span><span class="p">,</span> <span class="n">join_context</span><span class="p">)</span> +</span><span id="L-175"><a href="#L-175"><span class="linenos">175</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="L-176"><a href="#L-176"><span class="linenos">176</span></a> <span class="n">table</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">nested_loop_join</span><span class="p">(</span><span class="n">join</span><span class="p">,</span> <span class="n">source_context</span><span class="p">,</span> <span class="n">join_context</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="n">source_context</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</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">name</span><span class="p">:</span> <span class="n">Table</span><span class="p">(</span><span class="n">table</span><span class="o">.</span><span class="n">columns</span><span class="p">,</span> <span class="n">table</span><span class="o">.</span><span class="n">rows</span><span class="p">,</span> <span class="n">column_range</span><span class="p">)</span> +</span><span id="L-181"><a href="#L-181"><span class="linenos">181</span></a> <span class="k">for</span> <span class="n">name</span><span class="p">,</span> <span class="n">column_range</span> <span class="ow">in</span> <span class="n">column_ranges</span><span class="o">.</span><span class="n">items</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="p">)</span> +</span><span id="L-184"><a href="#L-184"><span class="linenos">184</span></a> <span class="n">condition</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generate</span><span class="p">(</span><span class="n">join</span><span class="p">[</span><span class="s2">"condition"</span><span class="p">])</span> +</span><span id="L-185"><a href="#L-185"><span class="linenos">185</span></a> <span class="k">if</span> <span class="n">condition</span><span class="p">:</span> +</span><span id="L-186"><a href="#L-186"><span class="linenos">186</span></a> <span class="n">source_context</span><span class="o">.</span><span class="n">filter</span><span class="p">(</span><span class="n">condition</span><span class="p">)</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">condition</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generate</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">condition</span><span class="p">)</span> +</span><span id="L-189"><a href="#L-189"><span class="linenos">189</span></a> <span class="n">projections</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generate_tuple</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">projections</span><span class="p">)</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 class="k">if</span> <span class="ow">not</span> <span class="n">condition</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">projections</span><span class="p">:</span> +</span><span id="L-192"><a href="#L-192"><span class="linenos">192</span></a> <span class="k">return</span> <span class="n">source_context</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 class="n">sink</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">table</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">projections</span> <span class="k">if</span> <span class="n">projections</span> <span class="k">else</span> <span class="n">source_context</span><span class="o">.</span><span class="n">columns</span><span class="p">)</span> +</span><span id="L-195"><a href="#L-195"><span class="linenos">195</span></a> +</span><span id="L-196"><a href="#L-196"><span class="linenos">196</span></a> <span class="k">for</span> <span class="n">reader</span><span class="p">,</span> <span class="n">ctx</span> <span class="ow">in</span> <span class="n">source_context</span><span class="p">:</span> +</span><span id="L-197"><a href="#L-197"><span class="linenos">197</span></a> <span class="k">if</span> <span class="n">condition</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">ctx</span><span class="o">.</span><span class="n">eval</span><span class="p">(</span><span class="n">condition</span><span class="p">):</span> +</span><span id="L-198"><a href="#L-198"><span class="linenos">198</span></a> <span class="k">continue</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="k">if</span> <span class="n">projections</span><span class="p">:</span> +</span><span id="L-201"><a href="#L-201"><span class="linenos">201</span></a> <span class="n">sink</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">ctx</span><span class="o">.</span><span class="n">eval_tuple</span><span class="p">(</span><span class="n">projections</span><span class="p">))</span> +</span><span id="L-202"><a href="#L-202"><span class="linenos">202</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="L-203"><a href="#L-203"><span class="linenos">203</span></a> <span class="n">sink</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">reader</span><span class="o">.</span><span class="n">row</span><span class="p">)</span> +</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">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">sink</span><span class="p">)</span> <span class="o">>=</span> <span class="n">step</span><span class="o">.</span><span class="n">limit</span><span class="p">:</span> +</span><span id="L-206"><a href="#L-206"><span class="linenos">206</span></a> <span class="k">break</span> +</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">if</span> <span class="n">projections</span><span class="p">:</span> +</span><span id="L-209"><a href="#L-209"><span class="linenos">209</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">({</span><span class="n">step</span><span class="o">.</span><span class="n">name</span><span class="p">:</span> <span class="n">sink</span><span class="p">})</span> +</span><span id="L-210"><a href="#L-210"><span class="linenos">210</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="L-211"><a href="#L-211"><span class="linenos">211</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">(</span> +</span><span id="L-212"><a href="#L-212"><span class="linenos">212</span></a> <span class="p">{</span> +</span><span id="L-213"><a href="#L-213"><span class="linenos">213</span></a> <span class="n">name</span><span class="p">:</span> <span class="n">Table</span><span class="p">(</span><span class="n">table</span><span class="o">.</span><span class="n">columns</span><span class="p">,</span> <span class="n">sink</span><span class="o">.</span><span class="n">rows</span><span class="p">,</span> <span class="n">table</span><span class="o">.</span><span class="n">column_range</span><span class="p">)</span> +</span><span id="L-214"><a href="#L-214"><span class="linenos">214</span></a> <span class="k">for</span> <span class="n">name</span><span class="p">,</span> <span class="n">table</span> <span class="ow">in</span> <span class="n">source_context</span><span class="o">.</span><span class="n">tables</span><span class="o">.</span><span class="n">items</span><span class="p">()</span> +</span><span id="L-215"><a href="#L-215"><span class="linenos">215</span></a> <span class="p">}</span> +</span><span id="L-216"><a href="#L-216"><span class="linenos">216</span></a> <span class="p">)</span> +</span><span id="L-217"><a href="#L-217"><span class="linenos">217</span></a> +</span><span id="L-218"><a href="#L-218"><span class="linenos">218</span></a> <span class="k">def</span> <span class="nf">nested_loop_join</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">_join</span><span class="p">,</span> <span class="n">source_context</span><span class="p">,</span> <span class="n">join_context</span><span class="p">):</span> +</span><span id="L-219"><a href="#L-219"><span class="linenos">219</span></a> <span class="n">table</span> <span class="o">=</span> <span class="n">Table</span><span class="p">(</span><span class="n">source_context</span><span class="o">.</span><span class="n">columns</span> <span class="o">+</span> <span class="n">join_context</span><span class="o">.</span><span class="n">columns</span><span class="p">)</span> +</span><span id="L-220"><a href="#L-220"><span class="linenos">220</span></a> +</span><span id="L-221"><a href="#L-221"><span class="linenos">221</span></a> <span class="k">for</span> <span class="n">reader_a</span><span class="p">,</span> <span class="n">_</span> <span class="ow">in</span> <span class="n">source_context</span><span class="p">:</span> +</span><span id="L-222"><a href="#L-222"><span class="linenos">222</span></a> <span class="k">for</span> <span class="n">reader_b</span><span class="p">,</span> <span class="n">_</span> <span class="ow">in</span> <span class="n">join_context</span><span class="p">:</span> +</span><span id="L-223"><a href="#L-223"><span class="linenos">223</span></a> <span class="n">table</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">reader_a</span><span class="o">.</span><span class="n">row</span> <span class="o">+</span> <span class="n">reader_b</span><span class="o">.</span><span class="n">row</span><span class="p">)</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 class="k">return</span> <span class="n">table</span> +</span><span id="L-226"><a href="#L-226"><span class="linenos">226</span></a> +</span><span id="L-227"><a href="#L-227"><span class="linenos">227</span></a> <span class="k">def</span> <span class="nf">hash_join</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">join</span><span class="p">,</span> <span class="n">source_context</span><span class="p">,</span> <span class="n">join_context</span><span class="p">):</span> +</span><span id="L-228"><a href="#L-228"><span class="linenos">228</span></a> <span class="n">source_key</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generate_tuple</span><span class="p">(</span><span class="n">join</span><span class="p">[</span><span class="s2">"source_key"</span><span class="p">])</span> +</span><span id="L-229"><a href="#L-229"><span class="linenos">229</span></a> <span class="n">join_key</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generate_tuple</span><span class="p">(</span><span class="n">join</span><span class="p">[</span><span class="s2">"join_key"</span><span class="p">])</span> +</span><span id="L-230"><a href="#L-230"><span class="linenos">230</span></a> <span class="n">left</span> <span class="o">=</span> <span class="n">join</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"side"</span><span class="p">)</span> <span class="o">==</span> <span class="s2">"LEFT"</span> +</span><span id="L-231"><a href="#L-231"><span class="linenos">231</span></a> <span class="n">right</span> <span class="o">=</span> <span class="n">join</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"side"</span><span class="p">)</span> <span class="o">==</span> <span class="s2">"RIGHT"</span> +</span><span id="L-232"><a href="#L-232"><span class="linenos">232</span></a> +</span><span id="L-233"><a href="#L-233"><span class="linenos">233</span></a> <span class="n">results</span> <span class="o">=</span> <span class="n">collections</span><span class="o">.</span><span class="n">defaultdict</span><span class="p">(</span><span class="k">lambda</span><span class="p">:</span> <span class="p">([],</span> <span class="p">[]))</span> +</span><span id="L-234"><a href="#L-234"><span class="linenos">234</span></a> +</span><span id="L-235"><a href="#L-235"><span class="linenos">235</span></a> <span class="k">for</span> <span class="n">reader</span><span class="p">,</span> <span class="n">ctx</span> <span class="ow">in</span> <span class="n">source_context</span><span class="p">:</span> +</span><span id="L-236"><a href="#L-236"><span class="linenos">236</span></a> <span class="n">results</span><span class="p">[</span><span class="n">ctx</span><span class="o">.</span><span class="n">eval_tuple</span><span class="p">(</span><span class="n">source_key</span><span class="p">)][</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">reader</span><span class="o">.</span><span class="n">row</span><span class="p">)</span> +</span><span id="L-237"><a href="#L-237"><span class="linenos">237</span></a> <span class="k">for</span> <span class="n">reader</span><span class="p">,</span> <span class="n">ctx</span> <span class="ow">in</span> <span class="n">join_context</span><span class="p">:</span> +</span><span id="L-238"><a href="#L-238"><span class="linenos">238</span></a> <span class="n">results</span><span class="p">[</span><span class="n">ctx</span><span class="o">.</span><span class="n">eval_tuple</span><span class="p">(</span><span class="n">join_key</span><span class="p">)][</span><span class="mi">1</span><span class="p">]</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">reader</span><span class="o">.</span><span class="n">row</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="n">table</span> <span class="o">=</span> <span class="n">Table</span><span class="p">(</span><span class="n">source_context</span><span class="o">.</span><span class="n">columns</span> <span class="o">+</span> <span class="n">join_context</span><span class="o">.</span><span class="n">columns</span><span class="p">)</span> +</span><span id="L-241"><a href="#L-241"><span class="linenos">241</span></a> <span class="n">nulls</span> <span class="o">=</span> <span class="p">[(</span><span class="kc">None</span><span class="p">,)</span> <span class="o">*</span> <span class="nb">len</span><span class="p">(</span><span class="n">join_context</span><span class="o">.</span><span class="n">columns</span> <span class="k">if</span> <span class="n">left</span> <span class="k">else</span> <span class="n">source_context</span><span class="o">.</span><span class="n">columns</span><span class="p">)]</span> +</span><span id="L-242"><a href="#L-242"><span class="linenos">242</span></a> +</span><span id="L-243"><a href="#L-243"><span class="linenos">243</span></a> <span class="k">for</span> <span class="n">a_group</span><span class="p">,</span> <span class="n">b_group</span> <span class="ow">in</span> <span class="n">results</span><span class="o">.</span><span class="n">values</span><span class="p">():</span> +</span><span id="L-244"><a href="#L-244"><span class="linenos">244</span></a> <span class="k">if</span> <span class="n">left</span><span class="p">:</span> +</span><span id="L-245"><a href="#L-245"><span class="linenos">245</span></a> <span class="n">b_group</span> <span class="o">=</span> <span class="n">b_group</span> <span class="ow">or</span> <span class="n">nulls</span> +</span><span id="L-246"><a href="#L-246"><span class="linenos">246</span></a> <span class="k">elif</span> <span class="n">right</span><span class="p">:</span> +</span><span id="L-247"><a href="#L-247"><span class="linenos">247</span></a> <span class="n">a_group</span> <span class="o">=</span> <span class="n">a_group</span> <span class="ow">or</span> <span class="n">nulls</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">for</span> <span class="n">a_row</span><span class="p">,</span> <span class="n">b_row</span> <span class="ow">in</span> <span class="n">itertools</span><span class="o">.</span><span class="n">product</span><span class="p">(</span><span class="n">a_group</span><span class="p">,</span> <span class="n">b_group</span><span class="p">):</span> +</span><span id="L-250"><a href="#L-250"><span class="linenos">250</span></a> <span class="n">table</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">a_row</span> <span class="o">+</span> <span class="n">b_row</span><span class="p">)</span> +</span><span id="L-251"><a href="#L-251"><span class="linenos">251</span></a> +</span><span id="L-252"><a href="#L-252"><span class="linenos">252</span></a> <span class="k">return</span> <span class="n">table</span> +</span><span id="L-253"><a href="#L-253"><span class="linenos">253</span></a> +</span><span id="L-254"><a href="#L-254"><span class="linenos">254</span></a> <span class="k">def</span> <span class="nf">aggregate</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">step</span><span class="p">,</span> <span class="n">context</span><span class="p">):</span> +</span><span id="L-255"><a href="#L-255"><span class="linenos">255</span></a> <span class="n">group_by</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generate_tuple</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">group</span><span class="o">.</span><span class="n">values</span><span class="p">())</span> +</span><span id="L-256"><a href="#L-256"><span class="linenos">256</span></a> <span class="n">aggregations</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generate_tuple</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">aggregations</span><span class="p">)</span> +</span><span id="L-257"><a href="#L-257"><span class="linenos">257</span></a> <span class="n">operands</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generate_tuple</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">operands</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="k">if</span> <span class="n">operands</span><span class="p">:</span> +</span><span id="L-260"><a href="#L-260"><span class="linenos">260</span></a> <span class="n">operand_table</span> <span class="o">=</span> <span class="n">Table</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">table</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">operands</span><span class="p">)</span><span class="o">.</span><span class="n">columns</span><span class="p">)</span> +</span><span id="L-261"><a href="#L-261"><span class="linenos">261</span></a> +</span><span id="L-262"><a href="#L-262"><span class="linenos">262</span></a> <span class="k">for</span> <span class="n">reader</span><span class="p">,</span> <span class="n">ctx</span> <span class="ow">in</span> <span class="n">context</span><span class="p">:</span> +</span><span id="L-263"><a href="#L-263"><span class="linenos">263</span></a> <span class="n">operand_table</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">ctx</span><span class="o">.</span><span class="n">eval_tuple</span><span class="p">(</span><span class="n">operands</span><span class="p">))</span> +</span><span id="L-264"><a href="#L-264"><span class="linenos">264</span></a> +</span><span id="L-265"><a href="#L-265"><span class="linenos">265</span></a> <span class="k">for</span> <span class="n">i</span><span class="p">,</span> <span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">)</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="nb">zip</span><span class="p">(</span><span class="n">context</span><span class="o">.</span><span class="n">table</span><span class="o">.</span><span class="n">rows</span><span class="p">,</span> <span class="n">operand_table</span><span class="o">.</span><span class="n">rows</span><span class="p">)):</span> +</span><span id="L-266"><a href="#L-266"><span class="linenos">266</span></a> <span class="n">context</span><span class="o">.</span><span class="n">table</span><span class="o">.</span><span class="n">rows</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">=</span> <span class="n">a</span> <span class="o">+</span> <span class="n">b</span> +</span><span id="L-267"><a href="#L-267"><span class="linenos">267</span></a> +</span><span id="L-268"><a href="#L-268"><span class="linenos">268</span></a> <span class="n">width</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="n">context</span><span class="o">.</span><span class="n">columns</span><span class="p">)</span> +</span><span id="L-269"><a href="#L-269"><span class="linenos">269</span></a> <span class="n">context</span><span class="o">.</span><span class="n">add_columns</span><span class="p">(</span><span class="o">*</span><span class="n">operand_table</span><span class="o">.</span><span class="n">columns</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="n">operand_table</span> <span class="o">=</span> <span class="n">Table</span><span class="p">(</span> +</span><span id="L-272"><a href="#L-272"><span class="linenos">272</span></a> <span class="n">context</span><span class="o">.</span><span class="n">columns</span><span class="p">,</span> +</span><span id="L-273"><a href="#L-273"><span class="linenos">273</span></a> <span class="n">context</span><span class="o">.</span><span class="n">table</span><span class="o">.</span><span class="n">rows</span><span class="p">,</span> +</span><span id="L-274"><a href="#L-274"><span class="linenos">274</span></a> <span class="nb">range</span><span class="p">(</span><span class="n">width</span><span class="p">,</span> <span class="n">width</span> <span class="o">+</span> <span class="nb">len</span><span class="p">(</span><span class="n">operand_table</span><span class="o">.</span><span class="n">columns</span><span class="p">)),</span> +</span><span id="L-275"><a href="#L-275"><span class="linenos">275</span></a> <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="n">context</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">(</span> +</span><span id="L-278"><a href="#L-278"><span class="linenos">278</span></a> <span class="p">{</span> +</span><span id="L-279"><a href="#L-279"><span class="linenos">279</span></a> <span class="kc">None</span><span class="p">:</span> <span class="n">operand_table</span><span class="p">,</span> +</span><span id="L-280"><a href="#L-280"><span class="linenos">280</span></a> <span class="o">**</span><span class="n">context</span><span class="o">.</span><span class="n">tables</span><span class="p">,</span> +</span><span id="L-281"><a href="#L-281"><span class="linenos">281</span></a> <span class="p">}</span> +</span><span id="L-282"><a href="#L-282"><span class="linenos">282</span></a> <span class="p">)</span> +</span><span id="L-283"><a href="#L-283"><span class="linenos">283</span></a> +</span><span id="L-284"><a href="#L-284"><span class="linenos">284</span></a> <span class="n">context</span><span class="o">.</span><span class="n">sort</span><span class="p">(</span><span class="n">group_by</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="n">group</span> <span class="o">=</span> <span class="kc">None</span> +</span><span id="L-287"><a href="#L-287"><span class="linenos">287</span></a> <span class="n">start</span> <span class="o">=</span> <span class="mi">0</span> +</span><span id="L-288"><a href="#L-288"><span class="linenos">288</span></a> <span class="n">end</span> <span class="o">=</span> <span class="mi">1</span> +</span><span id="L-289"><a href="#L-289"><span class="linenos">289</span></a> <span class="n">length</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="n">context</span><span class="o">.</span><span class="n">table</span><span class="p">)</span> +</span><span id="L-290"><a href="#L-290"><span class="linenos">290</span></a> <span class="n">table</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">table</span><span class="p">(</span><span class="nb">list</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">group</span><span class="p">)</span> <span class="o">+</span> <span class="n">step</span><span class="o">.</span><span class="n">aggregations</span><span class="p">)</span> +</span><span id="L-291"><a href="#L-291"><span class="linenos">291</span></a> <span class="n">condition</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generate</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">condition</span><span class="p">)</span> +</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="k">def</span> <span class="nf">add_row</span><span class="p">():</span> +</span><span id="L-294"><a href="#L-294"><span class="linenos">294</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">condition</span> <span class="ow">or</span> <span class="n">context</span><span class="o">.</span><span class="n">eval</span><span class="p">(</span><span class="n">condition</span><span class="p">):</span> +</span><span id="L-295"><a href="#L-295"><span class="linenos">295</span></a> <span class="n">table</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">group</span> <span class="o">+</span> <span class="n">context</span><span class="o">.</span><span class="n">eval_tuple</span><span class="p">(</span><span class="n">aggregations</span><span class="p">))</span> +</span><span id="L-296"><a href="#L-296"><span class="linenos">296</span></a> +</span><span id="L-297"><a href="#L-297"><span class="linenos">297</span></a> <span class="k">if</span> <span class="n">length</span><span class="p">:</span> +</span><span id="L-298"><a href="#L-298"><span class="linenos">298</span></a> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">length</span><span class="p">):</span> +</span><span id="L-299"><a href="#L-299"><span class="linenos">299</span></a> <span class="n">context</span><span class="o">.</span><span class="n">set_index</span><span class="p">(</span><span class="n">i</span><span class="p">)</span> +</span><span id="L-300"><a href="#L-300"><span class="linenos">300</span></a> <span class="n">key</span> <span class="o">=</span> <span class="n">context</span><span class="o">.</span><span class="n">eval_tuple</span><span class="p">(</span><span class="n">group_by</span><span class="p">)</span> +</span><span id="L-301"><a href="#L-301"><span class="linenos">301</span></a> <span class="n">group</span> <span class="o">=</span> <span class="n">key</span> <span class="k">if</span> <span class="n">group</span> <span class="ow">is</span> <span class="kc">None</span> <span class="k">else</span> <span class="n">group</span> +</span><span id="L-302"><a href="#L-302"><span class="linenos">302</span></a> <span class="n">end</span> <span class="o">+=</span> <span class="mi">1</span> +</span><span id="L-303"><a href="#L-303"><span class="linenos">303</span></a> <span class="k">if</span> <span class="n">key</span> <span class="o">!=</span> <span class="n">group</span><span class="p">:</span> +</span><span id="L-304"><a href="#L-304"><span class="linenos">304</span></a> <span class="n">context</span><span class="o">.</span><span class="n">set_range</span><span class="p">(</span><span class="n">start</span><span class="p">,</span> <span class="n">end</span> <span class="o">-</span> <span class="mi">2</span><span class="p">)</span> +</span><span id="L-305"><a href="#L-305"><span class="linenos">305</span></a> <span class="n">add_row</span><span class="p">()</span> +</span><span id="L-306"><a href="#L-306"><span class="linenos">306</span></a> <span class="n">group</span> <span class="o">=</span> <span class="n">key</span> +</span><span id="L-307"><a href="#L-307"><span class="linenos">307</span></a> <span class="n">start</span> <span class="o">=</span> <span class="n">end</span> <span class="o">-</span> <span class="mi">2</span> +</span><span id="L-308"><a href="#L-308"><span class="linenos">308</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">table</span><span class="o">.</span><span class="n">rows</span><span class="p">)</span> <span class="o">>=</span> <span class="n">step</span><span class="o">.</span><span class="n">limit</span><span class="p">:</span> +</span><span id="L-309"><a href="#L-309"><span class="linenos">309</span></a> <span class="k">break</span> +</span><span id="L-310"><a href="#L-310"><span class="linenos">310</span></a> <span class="k">if</span> <span class="n">i</span> <span class="o">==</span> <span class="n">length</span> <span class="o">-</span> <span class="mi">1</span><span class="p">:</span> +</span><span id="L-311"><a href="#L-311"><span class="linenos">311</span></a> <span class="n">context</span><span class="o">.</span><span class="n">set_range</span><span class="p">(</span><span class="n">start</span><span class="p">,</span> <span class="n">end</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)</span> +</span><span id="L-312"><a href="#L-312"><span class="linenos">312</span></a> <span class="n">add_row</span><span class="p">()</span> +</span><span id="L-313"><a href="#L-313"><span class="linenos">313</span></a> <span class="k">elif</span> <span class="n">step</span><span class="o">.</span><span class="n">limit</span> <span class="o">></span> <span class="mi">0</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">group_by</span><span class="p">:</span> +</span><span id="L-314"><a href="#L-314"><span class="linenos">314</span></a> <span class="n">context</span><span class="o">.</span><span class="n">set_range</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span> +</span><span id="L-315"><a href="#L-315"><span class="linenos">315</span></a> <span class="n">table</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">context</span><span class="o">.</span><span class="n">eval_tuple</span><span class="p">(</span><span class="n">aggregations</span><span class="p">))</span> +</span><span id="L-316"><a href="#L-316"><span class="linenos">316</span></a> +</span><span id="L-317"><a href="#L-317"><span class="linenos">317</span></a> <span class="n">context</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">({</span><span class="n">step</span><span class="o">.</span><span class="n">name</span><span class="p">:</span> <span class="n">table</span><span class="p">,</span> <span class="o">**</span><span class="p">{</span><span class="n">name</span><span class="p">:</span> <span class="n">table</span> <span class="k">for</span> <span class="n">name</span> <span class="ow">in</span> <span class="n">context</span><span class="o">.</span><span class="n">tables</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">step</span><span class="o">.</span><span class="n">projections</span><span class="p">:</span> +</span><span id="L-320"><a href="#L-320"><span class="linenos">320</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">scan</span><span class="p">(</span><span class="n">step</span><span class="p">,</span> <span class="n">context</span><span class="p">)</span> +</span><span id="L-321"><a href="#L-321"><span class="linenos">321</span></a> <span class="k">return</span> <span class="n">context</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="k">def</span> <span class="nf">sort</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">step</span><span class="p">,</span> <span class="n">context</span><span class="p">):</span> +</span><span id="L-324"><a href="#L-324"><span class="linenos">324</span></a> <span class="n">projections</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generate_tuple</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">projections</span><span class="p">)</span> +</span><span id="L-325"><a href="#L-325"><span class="linenos">325</span></a> <span class="n">projection_columns</span> <span class="o">=</span> <span class="p">[</span><span class="n">p</span><span class="o">.</span><span class="n">alias_or_name</span> <span class="k">for</span> <span class="n">p</span> <span class="ow">in</span> <span class="n">step</span><span class="o">.</span><span class="n">projections</span><span class="p">]</span> +</span><span id="L-326"><a href="#L-326"><span class="linenos">326</span></a> <span class="n">all_columns</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">context</span><span class="o">.</span><span class="n">columns</span><span class="p">)</span> <span class="o">+</span> <span class="n">projection_columns</span> +</span><span id="L-327"><a href="#L-327"><span class="linenos">327</span></a> <span class="n">sink</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">table</span><span class="p">(</span><span class="n">all_columns</span><span class="p">)</span> +</span><span id="L-328"><a href="#L-328"><span class="linenos">328</span></a> <span class="k">for</span> <span class="n">reader</span><span class="p">,</span> <span class="n">ctx</span> <span class="ow">in</span> <span class="n">context</span><span class="p">:</span> +</span><span id="L-329"><a href="#L-329"><span class="linenos">329</span></a> <span class="n">sink</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">reader</span><span class="o">.</span><span class="n">row</span> <span class="o">+</span> <span class="n">ctx</span><span class="o">.</span><span class="n">eval_tuple</span><span class="p">(</span><span class="n">projections</span><span class="p">))</span> +</span><span id="L-330"><a href="#L-330"><span class="linenos">330</span></a> +</span><span id="L-331"><a href="#L-331"><span class="linenos">331</span></a> <span class="n">sort_ctx</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">(</span> +</span><span id="L-332"><a href="#L-332"><span class="linenos">332</span></a> <span class="p">{</span> +</span><span id="L-333"><a href="#L-333"><span class="linenos">333</span></a> <span class="kc">None</span><span class="p">:</span> <span class="n">sink</span><span class="p">,</span> +</span><span id="L-334"><a href="#L-334"><span class="linenos">334</span></a> <span class="o">**</span><span class="p">{</span><span class="n">table</span><span class="p">:</span> <span class="n">sink</span> <span class="k">for</span> <span class="n">table</span> <span class="ow">in</span> <span class="n">context</span><span class="o">.</span><span class="n">tables</span><span class="p">},</span> +</span><span id="L-335"><a href="#L-335"><span class="linenos">335</span></a> <span class="p">}</span> +</span><span id="L-336"><a href="#L-336"><span class="linenos">336</span></a> <span class="p">)</span> +</span><span id="L-337"><a href="#L-337"><span class="linenos">337</span></a> <span class="n">sort_ctx</span><span class="o">.</span><span class="n">sort</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">generate_tuple</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">key</span><span class="p">))</span> +</span><span id="L-338"><a href="#L-338"><span class="linenos">338</span></a> +</span><span id="L-339"><a href="#L-339"><span class="linenos">339</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">math</span><span class="o">.</span><span class="n">isinf</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">limit</span><span class="p">):</span> +</span><span id="L-340"><a href="#L-340"><span class="linenos">340</span></a> <span class="n">sort_ctx</span><span class="o">.</span><span class="n">table</span><span class="o">.</span><span class="n">rows</span> <span class="o">=</span> <span class="n">sort_ctx</span><span class="o">.</span><span class="n">table</span><span class="o">.</span><span class="n">rows</span><span class="p">[</span><span class="mi">0</span> <span class="p">:</span> <span class="n">step</span><span class="o">.</span><span class="n">limit</span><span class="p">]</span> +</span><span id="L-341"><a href="#L-341"><span class="linenos">341</span></a> +</span><span id="L-342"><a href="#L-342"><span class="linenos">342</span></a> <span class="n">output</span> <span class="o">=</span> <span class="n">Table</span><span class="p">(</span> +</span><span id="L-343"><a href="#L-343"><span class="linenos">343</span></a> <span class="n">projection_columns</span><span class="p">,</span> +</span><span id="L-344"><a href="#L-344"><span class="linenos">344</span></a> <span class="n">rows</span><span class="o">=</span><span class="p">[</span><span class="n">r</span><span class="p">[</span><span class="nb">len</span><span class="p">(</span><span class="n">context</span><span class="o">.</span><span class="n">columns</span><span class="p">)</span> <span class="p">:</span> <span class="nb">len</span><span class="p">(</span><span class="n">all_columns</span><span class="p">)]</span> <span class="k">for</span> <span class="n">r</span> <span class="ow">in</span> <span class="n">sort_ctx</span><span class="o">.</span><span class="n">table</span><span class="o">.</span><span class="n">rows</span><span class="p">],</span> +</span><span id="L-345"><a href="#L-345"><span class="linenos">345</span></a> <span class="p">)</span> +</span><span id="L-346"><a href="#L-346"><span class="linenos">346</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">({</span><span class="n">step</span><span class="o">.</span><span class="n">name</span><span class="p">:</span> <span class="n">output</span><span class="p">})</span> +</span><span id="L-347"><a href="#L-347"><span class="linenos">347</span></a> +</span><span id="L-348"><a href="#L-348"><span class="linenos">348</span></a> <span class="k">def</span> <span class="nf">set_operation</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">step</span><span class="p">,</span> <span class="n">context</span><span class="p">):</span> +</span><span id="L-349"><a href="#L-349"><span class="linenos">349</span></a> <span class="n">left</span> <span class="o">=</span> <span class="n">context</span><span class="o">.</span><span class="n">tables</span><span class="p">[</span><span class="n">step</span><span class="o">.</span><span class="n">left</span><span class="p">]</span> +</span><span id="L-350"><a href="#L-350"><span class="linenos">350</span></a> <span class="n">right</span> <span class="o">=</span> <span class="n">context</span><span class="o">.</span><span class="n">tables</span><span class="p">[</span><span class="n">step</span><span class="o">.</span><span class="n">right</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 class="n">sink</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">table</span><span class="p">(</span><span class="n">left</span><span class="o">.</span><span class="n">columns</span><span class="p">)</span> +</span><span id="L-353"><a href="#L-353"><span class="linenos">353</span></a> +</span><span id="L-354"><a href="#L-354"><span class="linenos">354</span></a> <span class="k">if</span> <span class="nb">issubclass</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">op</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Intersect</span><span class="p">):</span> +</span><span id="L-355"><a href="#L-355"><span class="linenos">355</span></a> <span class="n">sink</span><span class="o">.</span><span class="n">rows</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="nb">set</span><span class="p">(</span><span class="n">left</span><span class="o">.</span><span class="n">rows</span><span class="p">)</span><span class="o">.</span><span class="n">intersection</span><span class="p">(</span><span class="nb">set</span><span class="p">(</span><span class="n">right</span><span class="o">.</span><span class="n">rows</span><span class="p">)))</span> +</span><span id="L-356"><a href="#L-356"><span class="linenos">356</span></a> <span class="k">elif</span> <span class="nb">issubclass</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">op</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Except</span><span class="p">):</span> +</span><span id="L-357"><a href="#L-357"><span class="linenos">357</span></a> <span class="n">sink</span><span class="o">.</span><span class="n">rows</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="nb">set</span><span class="p">(</span><span class="n">left</span><span class="o">.</span><span class="n">rows</span><span class="p">)</span><span class="o">.</span><span class="n">difference</span><span class="p">(</span><span class="nb">set</span><span class="p">(</span><span class="n">right</span><span class="o">.</span><span class="n">rows</span><span class="p">)))</span> +</span><span id="L-358"><a href="#L-358"><span class="linenos">358</span></a> <span class="k">elif</span> <span class="nb">issubclass</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">op</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Union</span><span class="p">)</span> <span class="ow">and</span> <span class="n">step</span><span class="o">.</span><span class="n">distinct</span><span class="p">:</span> +</span><span id="L-359"><a href="#L-359"><span class="linenos">359</span></a> <span class="n">sink</span><span class="o">.</span><span class="n">rows</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="nb">set</span><span class="p">(</span><span class="n">left</span><span class="o">.</span><span class="n">rows</span><span class="p">)</span><span class="o">.</span><span class="n">union</span><span class="p">(</span><span class="nb">set</span><span class="p">(</span><span class="n">right</span><span class="o">.</span><span class="n">rows</span><span class="p">)))</span> +</span><span id="L-360"><a href="#L-360"><span class="linenos">360</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="L-361"><a href="#L-361"><span class="linenos">361</span></a> <span class="n">sink</span><span class="o">.</span><span class="n">rows</span> <span class="o">=</span> <span class="n">left</span><span class="o">.</span><span class="n">rows</span> <span class="o">+</span> <span class="n">right</span><span class="o">.</span><span class="n">rows</span> +</span><span id="L-362"><a href="#L-362"><span class="linenos">362</span></a> +</span><span id="L-363"><a href="#L-363"><span class="linenos">363</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">({</span><span class="n">step</span><span class="o">.</span><span class="n">name</span><span class="p">:</span> <span class="n">sink</span><span class="p">})</span> +</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><span id="L-366"><a href="#L-366"><span class="linenos">366</span></a><span class="k">def</span> <span class="nf">_ordered_py</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">expression</span><span class="p">):</span> +</span><span id="L-367"><a href="#L-367"><span class="linenos">367</span></a> <span class="n">this</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="s2">"this"</span><span class="p">)</span> +</span><span id="L-368"><a href="#L-368"><span class="linenos">368</span></a> <span class="n">desc</span> <span class="o">=</span> <span class="s2">"True"</span> <span class="k">if</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">"desc"</span><span class="p">)</span> <span class="k">else</span> <span class="s2">"False"</span> +</span><span id="L-369"><a href="#L-369"><span class="linenos">369</span></a> <span class="n">nulls_first</span> <span class="o">=</span> <span class="s2">"True"</span> <span class="k">if</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">"nulls_first"</span><span class="p">)</span> <span class="k">else</span> <span class="s2">"False"</span> +</span><span id="L-370"><a href="#L-370"><span class="linenos">370</span></a> <span class="k">return</span> <span class="sa">f</span><span class="s2">"ORDERED(</span><span class="si">{</span><span class="n">this</span><span class="si">}</span><span class="s2">, </span><span class="si">{</span><span class="n">desc</span><span class="si">}</span><span class="s2">, </span><span class="si">{</span><span class="n">nulls_first</span><span class="si">}</span><span class="s2">)"</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><span id="L-373"><a href="#L-373"><span class="linenos">373</span></a><span class="k">def</span> <span class="nf">_rename</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">):</span> +</span><span id="L-374"><a href="#L-374"><span class="linenos">374</span></a> <span class="k">try</span><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="s2">"expressions"</span> <span class="ow">in</span> <span class="n">e</span><span class="o">.</span><span class="n">args</span><span class="p">:</span> +</span><span id="L-376"><a href="#L-376"><span class="linenos">376</span></a> <span class="n">this</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">"this"</span><span class="p">)</span> +</span><span id="L-377"><a href="#L-377"><span class="linenos">377</span></a> <span class="n">this</span> <span class="o">=</span> <span class="sa">f</span><span class="s2">"</span><span class="si">{</span><span class="n">this</span><span class="si">}</span><span class="s2">, "</span> <span class="k">if</span> <span class="n">this</span> <span class="k">else</span> <span class="s2">""</span> +</span><span id="L-378"><a href="#L-378"><span class="linenos">378</span></a> <span class="k">return</span> <span class="sa">f</span><span class="s2">"</span><span class="si">{</span><span class="n">e</span><span class="o">.</span><span class="n">key</span><span class="o">.</span><span class="n">upper</span><span class="p">()</span><span class="si">}</span><span class="s2">(</span><span class="si">{</span><span class="n">this</span><span class="si">}{</span><span class="bp">self</span><span class="o">.</span><span class="n">expressions</span><span class="p">(</span><span class="n">e</span><span class="p">)</span><span class="si">}</span><span class="s2">)"</span> +</span><span id="L-379"><a href="#L-379"><span class="linenos">379</span></a> <span class="k">return</span> <span class="sa">f</span><span class="s2">"</span><span class="si">{</span><span class="n">e</span><span class="o">.</span><span class="n">key</span><span class="o">.</span><span class="n">upper</span><span class="p">()</span><span class="si">}</span><span class="s2">(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">format_args</span><span class="p">(</span><span class="o">*</span><span class="n">e</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">values</span><span class="p">())</span><span class="si">}</span><span class="s2">)"</span> +</span><span id="L-380"><a href="#L-380"><span class="linenos">380</span></a> <span class="k">except</span> <span class="ne">Exception</span> <span class="k">as</span> <span class="n">ex</span><span class="p">:</span> +</span><span id="L-381"><a href="#L-381"><span class="linenos">381</span></a> <span class="k">raise</span> <span class="ne">Exception</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Could not rename </span><span class="si">{</span><span class="nb">repr</span><span class="p">(</span><span class="n">e</span><span class="p">)</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> <span class="kn">from</span> <span class="nn">ex</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><span id="L-384"><a href="#L-384"><span class="linenos">384</span></a><span class="k">def</span> <span class="nf">_case_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">expression</span><span class="p">):</span> +</span><span id="L-385"><a href="#L-385"><span class="linenos">385</span></a> <span class="n">this</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="s2">"this"</span><span class="p">)</span> +</span><span id="L-386"><a href="#L-386"><span class="linenos">386</span></a> <span class="n">chain</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="s2">"default"</span><span class="p">)</span> <span class="ow">or</span> <span class="s2">"None"</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">for</span> <span class="n">e</span> <span class="ow">in</span> <span class="nb">reversed</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">"ifs"</span><span class="p">]):</span> +</span><span id="L-389"><a href="#L-389"><span class="linenos">389</span></a> <span class="n">true</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">"true"</span><span class="p">)</span> +</span><span id="L-390"><a href="#L-390"><span class="linenos">390</span></a> <span class="n">condition</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">"this"</span><span class="p">)</span> +</span><span id="L-391"><a href="#L-391"><span class="linenos">391</span></a> <span class="n">condition</span> <span class="o">=</span> <span class="sa">f</span><span class="s2">"</span><span class="si">{</span><span class="n">this</span><span class="si">}</span><span class="s2"> = (</span><span class="si">{</span><span class="n">condition</span><span class="si">}</span><span class="s2">)"</span> <span class="k">if</span> <span class="n">this</span> <span class="k">else</span> <span class="n">condition</span> +</span><span id="L-392"><a href="#L-392"><span class="linenos">392</span></a> <span class="n">chain</span> <span class="o">=</span> <span class="sa">f</span><span class="s2">"</span><span class="si">{</span><span class="n">true</span><span class="si">}</span><span class="s2"> if </span><span class="si">{</span><span class="n">condition</span><span class="si">}</span><span class="s2"> else (</span><span class="si">{</span><span class="n">chain</span><span class="si">}</span><span class="s2">)"</span> +</span><span id="L-393"><a href="#L-393"><span class="linenos">393</span></a> +</span><span id="L-394"><a href="#L-394"><span class="linenos">394</span></a> <span class="k">return</span> <span class="n">chain</span> +</span><span id="L-395"><a href="#L-395"><span class="linenos">395</span></a> +</span><span id="L-396"><a href="#L-396"><span class="linenos">396</span></a> +</span><span id="L-397"><a href="#L-397"><span class="linenos">397</span></a><span class="k">def</span> <span class="nf">_lambda_sql</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Lambda</span><span class="p">)</span> <span class="o">-></span> <span class="nb">str</span><span class="p">:</span> +</span><span id="L-398"><a href="#L-398"><span class="linenos">398</span></a> <span class="n">names</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="o">.</span><span class="n">lower</span><span class="p">()</span> <span class="k">for</span> <span class="n">e</span> <span class="ow">in</span> <span class="n">e</span><span class="o">.</span><span class="n">expressions</span><span class="p">}</span> +</span><span id="L-399"><a href="#L-399"><span class="linenos">399</span></a> +</span><span id="L-400"><a href="#L-400"><span class="linenos">400</span></a> <span class="n">e</span> <span class="o">=</span> <span class="n">e</span><span class="o">.</span><span class="n">transform</span><span class="p">(</span> +</span><span id="L-401"><a href="#L-401"><span class="linenos">401</span></a> <span class="k">lambda</span> <span class="n">n</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Var</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">n</span><span class="o">.</span><span class="n">name</span><span class="p">)</span> +</span><span id="L-402"><a href="#L-402"><span class="linenos">402</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">n</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Identifier</span><span class="p">)</span> <span class="ow">and</span> <span class="n">n</span><span class="o">.</span><span class="n">name</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span> <span class="ow">in</span> <span class="n">names</span> +</span><span id="L-403"><a href="#L-403"><span class="linenos">403</span></a> <span class="k">else</span> <span class="n">n</span> +</span><span id="L-404"><a href="#L-404"><span class="linenos">404</span></a> <span class="p">)</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="k">return</span> <span class="sa">f</span><span class="s2">"lambda </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">expressions</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="n">flat</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span><span class="si">}</span><span class="s2">: </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">'this'</span><span class="p">)</span><span class="si">}</span><span class="s2">"</span> +</span><span id="L-407"><a href="#L-407"><span class="linenos">407</span></a> +</span><span id="L-408"><a href="#L-408"><span class="linenos">408</span></a> +</span><span id="L-409"><a href="#L-409"><span class="linenos">409</span></a><span class="k">class</span> <span class="nc">Python</span><span class="p">(</span><span class="n">Dialect</span><span class="p">):</span> +</span><span id="L-410"><a href="#L-410"><span class="linenos">410</span></a> <span class="k">class</span> <span class="nc">Tokenizer</span><span class="p">(</span><span class="n">tokens</span><span class="o">.</span><span class="n">Tokenizer</span><span class="p">):</span> +</span><span id="L-411"><a href="#L-411"><span class="linenos">411</span></a> <span class="n">STRING_ESCAPES</span> <span class="o">=</span> <span class="p">[</span><span class="s2">"</span><span class="se">\\</span><span class="s2">"</span><span class="p">]</span> +</span><span id="L-412"><a href="#L-412"><span class="linenos">412</span></a> +</span><span id="L-413"><a href="#L-413"><span class="linenos">413</span></a> <span class="k">class</span> <span class="nc">Generator</span><span class="p">(</span><span class="n">generator</span><span class="o">.</span><span class="n">Generator</span><span class="p">):</span> +</span><span id="L-414"><a href="#L-414"><span class="linenos">414</span></a> <span class="n">TRANSFORMS</span> <span class="o">=</span> <span class="p">{</span> +</span><span id="L-415"><a href="#L-415"><span class="linenos">415</span></a> <span class="o">**</span><span class="p">{</span><span class="n">klass</span><span class="p">:</span> <span class="n">_rename</span> <span class="k">for</span> <span class="n">klass</span> <span class="ow">in</span> <span class="n">subclasses</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="vm">__name__</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Binary</span><span class="p">)},</span> +</span><span id="L-416"><a href="#L-416"><span class="linenos">416</span></a> <span class="o">**</span><span class="p">{</span><span class="n">klass</span><span class="p">:</span> <span class="n">_rename</span> <span class="k">for</span> <span class="n">klass</span> <span class="ow">in</span> <span class="n">exp</span><span class="o">.</span><span class="n">ALL_FUNCTIONS</span><span class="p">},</span> +</span><span id="L-417"><a href="#L-417"><span class="linenos">417</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Case</span><span class="p">:</span> <span class="n">_case_sql</span><span class="p">,</span> +</span><span id="L-418"><a href="#L-418"><span class="linenos">418</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Alias</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">),</span> +</span><span id="L-419"><a href="#L-419"><span class="linenos">419</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Array</span><span class="p">:</span> <span class="n">inline_array_sql</span><span class="p">,</span> +</span><span id="L-420"><a href="#L-420"><span class="linenos">420</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">"and"</span><span class="p">),</span> +</span><span id="L-421"><a href="#L-421"><span class="linenos">421</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Between</span><span class="p">:</span> <span class="n">_rename</span><span class="p">,</span> +</span><span id="L-422"><a href="#L-422"><span class="linenos">422</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Boolean</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="s2">"True"</span> <span class="k">if</span> <span class="n">e</span><span class="o">.</span><span class="n">this</span> <span class="k">else</span> <span class="s2">"False"</span><span class="p">,</span> +</span><span id="L-423"><a href="#L-423"><span class="linenos">423</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Cast</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">"CAST(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">)</span><span class="si">}</span><span class="s2">, exp.DataType.Type.</span><span class="si">{</span><span class="n">e</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s1">'to'</span><span class="p">]</span><span class="si">}</span><span class="s2">)"</span><span class="p">,</span> +</span><span id="L-424"><a href="#L-424"><span class="linenos">424</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">"scope[</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">'table'</span><span class="p">)</span><span class="w"> </span><span class="ow">or</span><span class="w"> </span><span class="kc">None</span><span class="si">}</span><span class="s2">][</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">)</span><span class="si">}</span><span class="s2">]"</span><span class="p">,</span> +</span><span id="L-425"><a href="#L-425"><span class="linenos">425</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Distinct</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">"set(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">'this'</span><span class="p">)</span><span class="si">}</span><span class="s2">)"</span><span class="p">,</span> +</span><span id="L-426"><a href="#L-426"><span class="linenos">426</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Extract</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">"EXTRACT('</span><span class="si">{</span><span class="n">e</span><span class="o">.</span><span class="n">name</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span><span class="si">}</span><span class="s2">', </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">'expression'</span><span class="p">)</span><span class="si">}</span><span class="s2">)"</span><span class="p">,</span> +</span><span id="L-427"><a href="#L-427"><span class="linenos">427</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">In</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">"</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">'this'</span><span class="p">)</span><span class="si">}</span><span class="s2"> in (</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">expressions</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="n">flat</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span><span class="si">}</span><span class="s2">)"</span><span class="p">,</span> +</span><span id="L-428"><a href="#L-428"><span class="linenos">428</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Is</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">"is"</span><span class="p">),</span> +</span><span id="L-429"><a href="#L-429"><span class="linenos">429</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Lambda</span><span class="p">:</span> <span class="n">_lambda_sql</span><span class="p">,</span> +</span><span id="L-430"><a href="#L-430"><span class="linenos">430</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">"not </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">)</span><span class="si">}</span><span class="s2">"</span><span class="p">,</span> +</span><span id="L-431"><a href="#L-431"><span class="linenos">431</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Null</span><span class="p">:</span> <span class="k">lambda</span> <span class="o">*</span><span class="n">_</span><span class="p">:</span> <span class="s2">"None"</span><span class="p">,</span> +</span><span id="L-432"><a href="#L-432"><span class="linenos">432</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Or</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">"or"</span><span class="p">),</span> +</span><span id="L-433"><a href="#L-433"><span class="linenos">433</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Ordered</span><span class="p">:</span> <span class="n">_ordered_py</span><span class="p">,</span> +</span><span id="L-434"><a href="#L-434"><span class="linenos">434</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Star</span><span class="p">:</span> <span class="k">lambda</span> <span class="o">*</span><span class="n">_</span><span class="p">:</span> <span class="s2">"1"</span><span class="p">,</span> +</span><span id="L-435"><a href="#L-435"><span class="linenos">435</span></a> <span class="p">}</span> +</span></pre></div> + + + </section> + <section id="PythonExecutor"> + <input id="PythonExecutor-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr class"> + + <span class="def">class</span> + <span class="name">PythonExecutor</span>: + + <label class="view-source-button" for="PythonExecutor-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#PythonExecutor"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="PythonExecutor-16"><a href="#PythonExecutor-16"><span class="linenos"> 16</span></a><span class="k">class</span> <span class="nc">PythonExecutor</span><span class="p">:</span> +</span><span id="PythonExecutor-17"><a href="#PythonExecutor-17"><span class="linenos"> 17</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">env</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">tables</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span> +</span><span id="PythonExecutor-18"><a href="#PythonExecutor-18"><span class="linenos"> 18</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">generator</span> <span class="o">=</span> <span class="n">Python</span><span class="p">()</span><span class="o">.</span><span class="n">generator</span><span class="p">(</span><span class="n">identify</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span> <span class="n">comments</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span> +</span><span id="PythonExecutor-19"><a href="#PythonExecutor-19"><span class="linenos"> 19</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">env</span> <span class="o">=</span> <span class="p">{</span><span class="o">**</span><span class="n">ENV</span><span class="p">,</span> <span class="o">**</span><span class="p">(</span><span class="n">env</span> <span class="ow">or</span> <span class="p">{})}</span> +</span><span id="PythonExecutor-20"><a href="#PythonExecutor-20"><span class="linenos"> 20</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">tables</span> <span class="o">=</span> <span class="n">tables</span> <span class="ow">or</span> <span class="p">{}</span> +</span><span id="PythonExecutor-21"><a href="#PythonExecutor-21"><span class="linenos"> 21</span></a> +</span><span id="PythonExecutor-22"><a href="#PythonExecutor-22"><span class="linenos"> 22</span></a> <span class="k">def</span> <span class="nf">execute</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">plan</span><span class="p">):</span> +</span><span id="PythonExecutor-23"><a href="#PythonExecutor-23"><span class="linenos"> 23</span></a> <span class="n">running</span> <span class="o">=</span> <span class="nb">set</span><span class="p">()</span> +</span><span id="PythonExecutor-24"><a href="#PythonExecutor-24"><span class="linenos"> 24</span></a> <span class="n">finished</span> <span class="o">=</span> <span class="nb">set</span><span class="p">()</span> +</span><span id="PythonExecutor-25"><a href="#PythonExecutor-25"><span class="linenos"> 25</span></a> <span class="n">queue</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">plan</span><span class="o">.</span><span class="n">leaves</span><span class="p">)</span> +</span><span id="PythonExecutor-26"><a href="#PythonExecutor-26"><span class="linenos"> 26</span></a> <span class="n">contexts</span> <span class="o">=</span> <span class="p">{}</span> +</span><span id="PythonExecutor-27"><a href="#PythonExecutor-27"><span class="linenos"> 27</span></a> +</span><span id="PythonExecutor-28"><a href="#PythonExecutor-28"><span class="linenos"> 28</span></a> <span class="k">while</span> <span class="n">queue</span><span class="p">:</span> +</span><span id="PythonExecutor-29"><a href="#PythonExecutor-29"><span class="linenos"> 29</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">queue</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span> +</span><span id="PythonExecutor-30"><a href="#PythonExecutor-30"><span class="linenos"> 30</span></a> <span class="k">try</span><span class="p">:</span> +</span><span id="PythonExecutor-31"><a href="#PythonExecutor-31"><span class="linenos"> 31</span></a> <span class="n">context</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">(</span> +</span><span id="PythonExecutor-32"><a href="#PythonExecutor-32"><span class="linenos"> 32</span></a> <span class="p">{</span> +</span><span id="PythonExecutor-33"><a href="#PythonExecutor-33"><span class="linenos"> 33</span></a> <span class="n">name</span><span class="p">:</span> <span class="n">table</span> +</span><span id="PythonExecutor-34"><a href="#PythonExecutor-34"><span class="linenos"> 34</span></a> <span class="k">for</span> <span class="n">dep</span> <span class="ow">in</span> <span class="n">node</span><span class="o">.</span><span class="n">dependencies</span> +</span><span id="PythonExecutor-35"><a href="#PythonExecutor-35"><span class="linenos"> 35</span></a> <span class="k">for</span> <span class="n">name</span><span class="p">,</span> <span class="n">table</span> <span class="ow">in</span> <span class="n">contexts</span><span class="p">[</span><span class="n">dep</span><span class="p">]</span><span class="o">.</span><span class="n">tables</span><span class="o">.</span><span class="n">items</span><span class="p">()</span> +</span><span id="PythonExecutor-36"><a href="#PythonExecutor-36"><span class="linenos"> 36</span></a> <span class="p">}</span> +</span><span id="PythonExecutor-37"><a href="#PythonExecutor-37"><span class="linenos"> 37</span></a> <span class="p">)</span> +</span><span id="PythonExecutor-38"><a href="#PythonExecutor-38"><span class="linenos"> 38</span></a> <span class="n">running</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> +</span><span id="PythonExecutor-39"><a href="#PythonExecutor-39"><span class="linenos"> 39</span></a> +</span><span id="PythonExecutor-40"><a href="#PythonExecutor-40"><span class="linenos"> 40</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">planner</span><span class="o">.</span><span class="n">Scan</span><span class="p">):</span> +</span><span id="PythonExecutor-41"><a href="#PythonExecutor-41"><span class="linenos"> 41</span></a> <span class="n">contexts</span><span class="p">[</span><span class="n">node</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">scan</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">context</span><span class="p">)</span> +</span><span id="PythonExecutor-42"><a href="#PythonExecutor-42"><span class="linenos"> 42</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">planner</span><span class="o">.</span><span class="n">Aggregate</span><span class="p">):</span> +</span><span id="PythonExecutor-43"><a href="#PythonExecutor-43"><span class="linenos"> 43</span></a> <span class="n">contexts</span><span class="p">[</span><span class="n">node</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">aggregate</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">context</span><span class="p">)</span> +</span><span id="PythonExecutor-44"><a href="#PythonExecutor-44"><span class="linenos"> 44</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">planner</span><span class="o">.</span><span class="n">Join</span><span class="p">):</span> +</span><span id="PythonExecutor-45"><a href="#PythonExecutor-45"><span class="linenos"> 45</span></a> <span class="n">contexts</span><span class="p">[</span><span class="n">node</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">context</span><span class="p">)</span> +</span><span id="PythonExecutor-46"><a href="#PythonExecutor-46"><span class="linenos"> 46</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">planner</span><span class="o">.</span><span class="n">Sort</span><span class="p">):</span> +</span><span id="PythonExecutor-47"><a href="#PythonExecutor-47"><span class="linenos"> 47</span></a> <span class="n">contexts</span><span class="p">[</span><span class="n">node</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">sort</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">context</span><span class="p">)</span> +</span><span id="PythonExecutor-48"><a href="#PythonExecutor-48"><span class="linenos"> 48</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">planner</span><span class="o">.</span><span class="n">SetOperation</span><span class="p">):</span> +</span><span id="PythonExecutor-49"><a href="#PythonExecutor-49"><span class="linenos"> 49</span></a> <span class="n">contexts</span><span class="p">[</span><span class="n">node</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">set_operation</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">context</span><span class="p">)</span> +</span><span id="PythonExecutor-50"><a href="#PythonExecutor-50"><span class="linenos"> 50</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="PythonExecutor-51"><a href="#PythonExecutor-51"><span class="linenos"> 51</span></a> <span class="k">raise</span> <span class="ne">NotImplementedError</span> +</span><span id="PythonExecutor-52"><a href="#PythonExecutor-52"><span class="linenos"> 52</span></a> +</span><span id="PythonExecutor-53"><a href="#PythonExecutor-53"><span class="linenos"> 53</span></a> <span class="n">running</span><span class="o">.</span><span class="n">remove</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> +</span><span id="PythonExecutor-54"><a href="#PythonExecutor-54"><span class="linenos"> 54</span></a> <span class="n">finished</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> +</span><span id="PythonExecutor-55"><a href="#PythonExecutor-55"><span class="linenos"> 55</span></a> +</span><span id="PythonExecutor-56"><a href="#PythonExecutor-56"><span class="linenos"> 56</span></a> <span class="k">for</span> <span class="n">dep</span> <span class="ow">in</span> <span class="n">node</span><span class="o">.</span><span class="n">dependents</span><span class="p">:</span> +</span><span id="PythonExecutor-57"><a href="#PythonExecutor-57"><span class="linenos"> 57</span></a> <span class="k">if</span> <span class="n">dep</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">running</span> <span class="ow">and</span> <span class="nb">all</span><span class="p">(</span><span class="n">d</span> <span class="ow">in</span> <span class="n">contexts</span> <span class="k">for</span> <span class="n">d</span> <span class="ow">in</span> <span class="n">dep</span><span class="o">.</span><span class="n">dependencies</span><span class="p">):</span> +</span><span id="PythonExecutor-58"><a href="#PythonExecutor-58"><span class="linenos"> 58</span></a> <span class="n">queue</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">dep</span><span class="p">)</span> +</span><span id="PythonExecutor-59"><a href="#PythonExecutor-59"><span class="linenos"> 59</span></a> +</span><span id="PythonExecutor-60"><a href="#PythonExecutor-60"><span class="linenos"> 60</span></a> <span class="k">for</span> <span class="n">dep</span> <span class="ow">in</span> <span class="n">node</span><span class="o">.</span><span class="n">dependencies</span><span class="p">:</span> +</span><span id="PythonExecutor-61"><a href="#PythonExecutor-61"><span class="linenos"> 61</span></a> <span class="k">if</span> <span class="nb">all</span><span class="p">(</span><span class="n">d</span> <span class="ow">in</span> <span class="n">finished</span> <span class="k">for</span> <span class="n">d</span> <span class="ow">in</span> <span class="n">dep</span><span class="o">.</span><span class="n">dependents</span><span class="p">):</span> +</span><span id="PythonExecutor-62"><a href="#PythonExecutor-62"><span class="linenos"> 62</span></a> <span class="n">contexts</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="n">dep</span><span class="p">)</span> +</span><span id="PythonExecutor-63"><a href="#PythonExecutor-63"><span class="linenos"> 63</span></a> <span class="k">except</span> <span class="ne">Exception</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span> +</span><span id="PythonExecutor-64"><a href="#PythonExecutor-64"><span class="linenos"> 64</span></a> <span class="k">raise</span> <span class="n">ExecuteError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Step '</span><span class="si">{</span><span class="n">node</span><span class="o">.</span><span class="n">id</span><span class="si">}</span><span class="s2">' failed: </span><span class="si">{</span><span class="n">e</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> <span class="kn">from</span> <span class="nn">e</span> +</span><span id="PythonExecutor-65"><a href="#PythonExecutor-65"><span class="linenos"> 65</span></a> +</span><span id="PythonExecutor-66"><a href="#PythonExecutor-66"><span class="linenos"> 66</span></a> <span class="n">root</span> <span class="o">=</span> <span class="n">plan</span><span class="o">.</span><span class="n">root</span> +</span><span id="PythonExecutor-67"><a href="#PythonExecutor-67"><span class="linenos"> 67</span></a> <span class="k">return</span> <span class="n">contexts</span><span class="p">[</span><span class="n">root</span><span class="p">]</span><span class="o">.</span><span class="n">tables</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="PythonExecutor-68"><a href="#PythonExecutor-68"><span class="linenos"> 68</span></a> +</span><span id="PythonExecutor-69"><a href="#PythonExecutor-69"><span class="linenos"> 69</span></a> <span class="k">def</span> <span class="nf">generate</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">expression</span><span class="p">):</span> +</span><span id="PythonExecutor-70"><a href="#PythonExecutor-70"><span class="linenos"> 70</span></a><span class="w"> </span><span class="sd">"""Convert a SQL expression into literal Python code and compile it into bytecode."""</span> +</span><span id="PythonExecutor-71"><a href="#PythonExecutor-71"><span class="linenos"> 71</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">expression</span><span class="p">:</span> +</span><span id="PythonExecutor-72"><a href="#PythonExecutor-72"><span class="linenos"> 72</span></a> <span class="k">return</span> <span class="kc">None</span> +</span><span id="PythonExecutor-73"><a href="#PythonExecutor-73"><span class="linenos"> 73</span></a> +</span><span id="PythonExecutor-74"><a href="#PythonExecutor-74"><span class="linenos"> 74</span></a> <span class="n">sql</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generator</span><span class="o">.</span><span class="n">generate</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span> +</span><span id="PythonExecutor-75"><a href="#PythonExecutor-75"><span class="linenos"> 75</span></a> <span class="k">return</span> <span class="nb">compile</span><span class="p">(</span><span class="n">sql</span><span class="p">,</span> <span class="n">sql</span><span class="p">,</span> <span class="s2">"eval"</span><span class="p">,</span> <span class="n">optimize</span><span class="o">=</span><span class="mi">2</span><span class="p">)</span> +</span><span id="PythonExecutor-76"><a href="#PythonExecutor-76"><span class="linenos"> 76</span></a> +</span><span id="PythonExecutor-77"><a href="#PythonExecutor-77"><span class="linenos"> 77</span></a> <span class="k">def</span> <span class="nf">generate_tuple</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">expressions</span><span class="p">):</span> +</span><span id="PythonExecutor-78"><a href="#PythonExecutor-78"><span class="linenos"> 78</span></a><span class="w"> </span><span class="sd">"""Convert an array of SQL expressions into tuple of Python byte code."""</span> +</span><span id="PythonExecutor-79"><a href="#PythonExecutor-79"><span class="linenos"> 79</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">expressions</span><span class="p">:</span> +</span><span id="PythonExecutor-80"><a href="#PythonExecutor-80"><span class="linenos"> 80</span></a> <span class="k">return</span> <span class="nb">tuple</span><span class="p">()</span> +</span><span id="PythonExecutor-81"><a href="#PythonExecutor-81"><span class="linenos"> 81</span></a> <span class="k">return</span> <span class="nb">tuple</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">generate</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span> <span class="k">for</span> <span class="n">expression</span> <span class="ow">in</span> <span class="n">expressions</span><span class="p">)</span> +</span><span id="PythonExecutor-82"><a href="#PythonExecutor-82"><span class="linenos"> 82</span></a> +</span><span id="PythonExecutor-83"><a href="#PythonExecutor-83"><span class="linenos"> 83</span></a> <span class="k">def</span> <span class="nf">context</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">tables</span><span class="p">):</span> +</span><span id="PythonExecutor-84"><a href="#PythonExecutor-84"><span class="linenos"> 84</span></a> <span class="k">return</span> <span class="n">Context</span><span class="p">(</span><span class="n">tables</span><span class="p">,</span> <span class="n">env</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">env</span><span class="p">)</span> +</span><span id="PythonExecutor-85"><a href="#PythonExecutor-85"><span class="linenos"> 85</span></a> +</span><span id="PythonExecutor-86"><a href="#PythonExecutor-86"><span class="linenos"> 86</span></a> <span class="k">def</span> <span class="nf">table</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">expressions</span><span class="p">):</span> +</span><span id="PythonExecutor-87"><a href="#PythonExecutor-87"><span class="linenos"> 87</span></a> <span class="k">return</span> <span class="n">Table</span><span class="p">(</span> +</span><span id="PythonExecutor-88"><a href="#PythonExecutor-88"><span class="linenos"> 88</span></a> <span class="n">expression</span><span class="o">.</span><span class="n">alias_or_name</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="k">else</span> <span class="n">expression</span> +</span><span id="PythonExecutor-89"><a href="#PythonExecutor-89"><span class="linenos"> 89</span></a> <span class="k">for</span> <span class="n">expression</span> <span class="ow">in</span> <span class="n">expressions</span> +</span><span id="PythonExecutor-90"><a href="#PythonExecutor-90"><span class="linenos"> 90</span></a> <span class="p">)</span> +</span><span id="PythonExecutor-91"><a href="#PythonExecutor-91"><span class="linenos"> 91</span></a> +</span><span id="PythonExecutor-92"><a href="#PythonExecutor-92"><span class="linenos"> 92</span></a> <span class="k">def</span> <span class="nf">scan</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">step</span><span class="p">,</span> <span class="n">context</span><span class="p">):</span> +</span><span id="PythonExecutor-93"><a href="#PythonExecutor-93"><span class="linenos"> 93</span></a> <span class="n">source</span> <span class="o">=</span> <span class="n">step</span><span class="o">.</span><span class="n">source</span> +</span><span id="PythonExecutor-94"><a href="#PythonExecutor-94"><span class="linenos"> 94</span></a> +</span><span id="PythonExecutor-95"><a href="#PythonExecutor-95"><span class="linenos"> 95</span></a> <span class="k">if</span> <span class="n">source</span> <span class="ow">and</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">Expression</span><span class="p">):</span> +</span><span id="PythonExecutor-96"><a href="#PythonExecutor-96"><span class="linenos"> 96</span></a> <span class="n">source</span> <span class="o">=</span> <span class="n">source</span><span class="o">.</span><span class="n">name</span> <span class="ow">or</span> <span class="n">source</span><span class="o">.</span><span class="n">alias</span> +</span><span id="PythonExecutor-97"><a href="#PythonExecutor-97"><span class="linenos"> 97</span></a> +</span><span id="PythonExecutor-98"><a href="#PythonExecutor-98"><span class="linenos"> 98</span></a> <span class="n">condition</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generate</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">condition</span><span class="p">)</span> +</span><span id="PythonExecutor-99"><a href="#PythonExecutor-99"><span class="linenos"> 99</span></a> <span class="n">projections</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generate_tuple</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">projections</span><span class="p">)</span> +</span><span id="PythonExecutor-100"><a href="#PythonExecutor-100"><span class="linenos">100</span></a> +</span><span id="PythonExecutor-101"><a href="#PythonExecutor-101"><span class="linenos">101</span></a> <span class="k">if</span> <span class="n">source</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> +</span><span id="PythonExecutor-102"><a href="#PythonExecutor-102"><span class="linenos">102</span></a> <span class="n">context</span><span class="p">,</span> <span class="n">table_iter</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">static</span><span class="p">()</span> +</span><span id="PythonExecutor-103"><a href="#PythonExecutor-103"><span class="linenos">103</span></a> <span class="k">elif</span> <span class="n">source</span> <span class="ow">in</span> <span class="n">context</span><span class="p">:</span> +</span><span id="PythonExecutor-104"><a href="#PythonExecutor-104"><span class="linenos">104</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">projections</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">condition</span><span class="p">:</span> +</span><span id="PythonExecutor-105"><a href="#PythonExecutor-105"><span class="linenos">105</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">({</span><span class="n">step</span><span class="o">.</span><span class="n">name</span><span class="p">:</span> <span class="n">context</span><span class="o">.</span><span class="n">tables</span><span class="p">[</span><span class="n">source</span><span class="p">]})</span> +</span><span id="PythonExecutor-106"><a href="#PythonExecutor-106"><span class="linenos">106</span></a> <span class="n">table_iter</span> <span class="o">=</span> <span class="n">context</span><span class="o">.</span><span class="n">table_iter</span><span class="p">(</span><span class="n">source</span><span class="p">)</span> +</span><span id="PythonExecutor-107"><a href="#PythonExecutor-107"><span class="linenos">107</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">step</span><span class="o">.</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 class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">source</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">ReadCSV</span><span class="p">):</span> +</span><span id="PythonExecutor-108"><a href="#PythonExecutor-108"><span class="linenos">108</span></a> <span class="n">table_iter</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">scan_csv</span><span class="p">(</span><span class="n">step</span><span class="p">)</span> +</span><span id="PythonExecutor-109"><a href="#PythonExecutor-109"><span class="linenos">109</span></a> <span class="n">context</span> <span class="o">=</span> <span class="nb">next</span><span class="p">(</span><span class="n">table_iter</span><span class="p">)</span> +</span><span id="PythonExecutor-110"><a href="#PythonExecutor-110"><span class="linenos">110</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="PythonExecutor-111"><a href="#PythonExecutor-111"><span class="linenos">111</span></a> <span class="n">context</span><span class="p">,</span> <span class="n">table_iter</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">scan_table</span><span class="p">(</span><span class="n">step</span><span class="p">)</span> +</span><span id="PythonExecutor-112"><a href="#PythonExecutor-112"><span class="linenos">112</span></a> +</span><span id="PythonExecutor-113"><a href="#PythonExecutor-113"><span class="linenos">113</span></a> <span class="k">if</span> <span class="n">projections</span><span class="p">:</span> +</span><span id="PythonExecutor-114"><a href="#PythonExecutor-114"><span class="linenos">114</span></a> <span class="n">sink</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">table</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">projections</span><span class="p">)</span> +</span><span id="PythonExecutor-115"><a href="#PythonExecutor-115"><span class="linenos">115</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="PythonExecutor-116"><a href="#PythonExecutor-116"><span class="linenos">116</span></a> <span class="n">sink</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">table</span><span class="p">(</span><span class="n">context</span><span class="o">.</span><span class="n">columns</span><span class="p">)</span> +</span><span id="PythonExecutor-117"><a href="#PythonExecutor-117"><span class="linenos">117</span></a> +</span><span id="PythonExecutor-118"><a href="#PythonExecutor-118"><span class="linenos">118</span></a> <span class="k">for</span> <span class="n">reader</span> <span class="ow">in</span> <span class="n">table_iter</span><span class="p">:</span> +</span><span id="PythonExecutor-119"><a href="#PythonExecutor-119"><span class="linenos">119</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">sink</span><span class="p">)</span> <span class="o">>=</span> <span class="n">step</span><span class="o">.</span><span class="n">limit</span><span class="p">:</span> +</span><span id="PythonExecutor-120"><a href="#PythonExecutor-120"><span class="linenos">120</span></a> <span class="k">break</span> +</span><span id="PythonExecutor-121"><a href="#PythonExecutor-121"><span class="linenos">121</span></a> +</span><span id="PythonExecutor-122"><a href="#PythonExecutor-122"><span class="linenos">122</span></a> <span class="k">if</span> <span class="n">condition</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">context</span><span class="o">.</span><span class="n">eval</span><span class="p">(</span><span class="n">condition</span><span class="p">):</span> +</span><span id="PythonExecutor-123"><a href="#PythonExecutor-123"><span class="linenos">123</span></a> <span class="k">continue</span> +</span><span id="PythonExecutor-124"><a href="#PythonExecutor-124"><span class="linenos">124</span></a> +</span><span id="PythonExecutor-125"><a href="#PythonExecutor-125"><span class="linenos">125</span></a> <span class="k">if</span> <span class="n">projections</span><span class="p">:</span> +</span><span id="PythonExecutor-126"><a href="#PythonExecutor-126"><span class="linenos">126</span></a> <span class="n">sink</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">context</span><span class="o">.</span><span class="n">eval_tuple</span><span class="p">(</span><span class="n">projections</span><span class="p">))</span> +</span><span id="PythonExecutor-127"><a href="#PythonExecutor-127"><span class="linenos">127</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="PythonExecutor-128"><a href="#PythonExecutor-128"><span class="linenos">128</span></a> <span class="n">sink</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">reader</span><span class="o">.</span><span class="n">row</span><span class="p">)</span> +</span><span id="PythonExecutor-129"><a href="#PythonExecutor-129"><span class="linenos">129</span></a> +</span><span id="PythonExecutor-130"><a href="#PythonExecutor-130"><span class="linenos">130</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">({</span><span class="n">step</span><span class="o">.</span><span class="n">name</span><span class="p">:</span> <span class="n">sink</span><span class="p">})</span> +</span><span id="PythonExecutor-131"><a href="#PythonExecutor-131"><span class="linenos">131</span></a> +</span><span id="PythonExecutor-132"><a href="#PythonExecutor-132"><span class="linenos">132</span></a> <span class="k">def</span> <span class="nf">static</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> +</span><span id="PythonExecutor-133"><a href="#PythonExecutor-133"><span class="linenos">133</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">({}),</span> <span class="p">[</span><span class="n">RowReader</span><span class="p">(())]</span> +</span><span id="PythonExecutor-134"><a href="#PythonExecutor-134"><span class="linenos">134</span></a> +</span><span id="PythonExecutor-135"><a href="#PythonExecutor-135"><span class="linenos">135</span></a> <span class="k">def</span> <span class="nf">scan_table</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">step</span><span class="p">):</span> +</span><span id="PythonExecutor-136"><a href="#PythonExecutor-136"><span class="linenos">136</span></a> <span class="n">table</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">tables</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">source</span><span class="p">)</span> +</span><span id="PythonExecutor-137"><a href="#PythonExecutor-137"><span class="linenos">137</span></a> <span class="n">context</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">({</span><span class="n">step</span><span class="o">.</span><span class="n">source</span><span class="o">.</span><span class="n">alias_or_name</span><span class="p">:</span> <span class="n">table</span><span class="p">})</span> +</span><span id="PythonExecutor-138"><a href="#PythonExecutor-138"><span class="linenos">138</span></a> <span class="k">return</span> <span class="n">context</span><span class="p">,</span> <span class="nb">iter</span><span class="p">(</span><span class="n">table</span><span class="p">)</span> +</span><span id="PythonExecutor-139"><a href="#PythonExecutor-139"><span class="linenos">139</span></a> +</span><span id="PythonExecutor-140"><a href="#PythonExecutor-140"><span class="linenos">140</span></a> <span class="k">def</span> <span class="nf">scan_csv</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">step</span><span class="p">):</span> +</span><span id="PythonExecutor-141"><a href="#PythonExecutor-141"><span class="linenos">141</span></a> <span class="n">alias</span> <span class="o">=</span> <span class="n">step</span><span class="o">.</span><span class="n">source</span><span class="o">.</span><span class="n">alias</span> +</span><span id="PythonExecutor-142"><a href="#PythonExecutor-142"><span class="linenos">142</span></a> <span class="n">source</span> <span class="o">=</span> <span class="n">step</span><span class="o">.</span><span class="n">source</span><span class="o">.</span><span class="n">this</span> +</span><span id="PythonExecutor-143"><a href="#PythonExecutor-143"><span class="linenos">143</span></a> +</span><span id="PythonExecutor-144"><a href="#PythonExecutor-144"><span class="linenos">144</span></a> <span class="k">with</span> <span class="n">csv_reader</span><span class="p">(</span><span class="n">source</span><span class="p">)</span> <span class="k">as</span> <span class="n">reader</span><span class="p">:</span> +</span><span id="PythonExecutor-145"><a href="#PythonExecutor-145"><span class="linenos">145</span></a> <span class="n">columns</span> <span class="o">=</span> <span class="nb">next</span><span class="p">(</span><span class="n">reader</span><span class="p">)</span> +</span><span id="PythonExecutor-146"><a href="#PythonExecutor-146"><span class="linenos">146</span></a> <span class="n">table</span> <span class="o">=</span> <span class="n">Table</span><span class="p">(</span><span class="n">columns</span><span class="p">)</span> +</span><span id="PythonExecutor-147"><a href="#PythonExecutor-147"><span class="linenos">147</span></a> <span class="n">context</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">({</span><span class="n">alias</span><span class="p">:</span> <span class="n">table</span><span class="p">})</span> +</span><span id="PythonExecutor-148"><a href="#PythonExecutor-148"><span class="linenos">148</span></a> <span class="k">yield</span> <span class="n">context</span> +</span><span id="PythonExecutor-149"><a href="#PythonExecutor-149"><span class="linenos">149</span></a> <span class="n">types</span> <span class="o">=</span> <span class="p">[]</span> +</span><span id="PythonExecutor-150"><a href="#PythonExecutor-150"><span class="linenos">150</span></a> +</span><span id="PythonExecutor-151"><a href="#PythonExecutor-151"><span class="linenos">151</span></a> <span class="k">for</span> <span class="n">row</span> <span class="ow">in</span> <span class="n">reader</span><span class="p">:</span> +</span><span id="PythonExecutor-152"><a href="#PythonExecutor-152"><span class="linenos">152</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">types</span><span class="p">:</span> +</span><span id="PythonExecutor-153"><a href="#PythonExecutor-153"><span class="linenos">153</span></a> <span class="k">for</span> <span class="n">v</span> <span class="ow">in</span> <span class="n">row</span><span class="p">:</span> +</span><span id="PythonExecutor-154"><a href="#PythonExecutor-154"><span class="linenos">154</span></a> <span class="k">try</span><span class="p">:</span> +</span><span id="PythonExecutor-155"><a href="#PythonExecutor-155"><span class="linenos">155</span></a> <span class="n">types</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="nb">type</span><span class="p">(</span><span class="n">ast</span><span class="o">.</span><span class="n">literal_eval</span><span class="p">(</span><span class="n">v</span><span class="p">)))</span> +</span><span id="PythonExecutor-156"><a href="#PythonExecutor-156"><span class="linenos">156</span></a> <span class="k">except</span> <span class="p">(</span><span class="ne">ValueError</span><span class="p">,</span> <span class="ne">SyntaxError</span><span class="p">):</span> +</span><span id="PythonExecutor-157"><a href="#PythonExecutor-157"><span class="linenos">157</span></a> <span class="n">types</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="nb">str</span><span class="p">)</span> +</span><span id="PythonExecutor-158"><a href="#PythonExecutor-158"><span class="linenos">158</span></a> <span class="n">context</span><span class="o">.</span><span class="n">set_row</span><span class="p">(</span><span class="nb">tuple</span><span class="p">(</span><span class="n">t</span><span class="p">(</span><span class="n">v</span><span class="p">)</span> <span class="k">for</span> <span class="n">t</span><span class="p">,</span> <span class="n">v</span> <span class="ow">in</span> <span class="nb">zip</span><span class="p">(</span><span class="n">types</span><span class="p">,</span> <span class="n">row</span><span class="p">)))</span> +</span><span id="PythonExecutor-159"><a href="#PythonExecutor-159"><span class="linenos">159</span></a> <span class="k">yield</span> <span class="n">context</span><span class="o">.</span><span class="n">table</span><span class="o">.</span><span class="n">reader</span> +</span><span id="PythonExecutor-160"><a href="#PythonExecutor-160"><span class="linenos">160</span></a> +</span><span id="PythonExecutor-161"><a href="#PythonExecutor-161"><span class="linenos">161</span></a> <span class="k">def</span> <span class="nf">join</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">step</span><span class="p">,</span> <span class="n">context</span><span class="p">):</span> +</span><span id="PythonExecutor-162"><a href="#PythonExecutor-162"><span class="linenos">162</span></a> <span class="n">source</span> <span class="o">=</span> <span class="n">step</span><span class="o">.</span><span class="n">name</span> +</span><span id="PythonExecutor-163"><a href="#PythonExecutor-163"><span class="linenos">163</span></a> +</span><span id="PythonExecutor-164"><a href="#PythonExecutor-164"><span class="linenos">164</span></a> <span class="n">source_table</span> <span class="o">=</span> <span class="n">context</span><span class="o">.</span><span class="n">tables</span><span class="p">[</span><span class="n">source</span><span class="p">]</span> +</span><span id="PythonExecutor-165"><a href="#PythonExecutor-165"><span class="linenos">165</span></a> <span class="n">source_context</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">({</span><span class="n">source</span><span class="p">:</span> <span class="n">source_table</span><span class="p">})</span> +</span><span id="PythonExecutor-166"><a href="#PythonExecutor-166"><span class="linenos">166</span></a> <span class="n">column_ranges</span> <span class="o">=</span> <span class="p">{</span><span class="n">source</span><span class="p">:</span> <span class="nb">range</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="nb">len</span><span class="p">(</span><span class="n">source_table</span><span class="o">.</span><span class="n">columns</span><span class="p">))}</span> +</span><span id="PythonExecutor-167"><a href="#PythonExecutor-167"><span class="linenos">167</span></a> +</span><span id="PythonExecutor-168"><a href="#PythonExecutor-168"><span class="linenos">168</span></a> <span class="k">for</span> <span class="n">name</span><span class="p">,</span> <span class="n">join</span> <span class="ow">in</span> <span class="n">step</span><span class="o">.</span><span class="n">joins</span><span class="o">.</span><span class="n">items</span><span class="p">():</span> +</span><span id="PythonExecutor-169"><a href="#PythonExecutor-169"><span class="linenos">169</span></a> <span class="n">table</span> <span class="o">=</span> <span class="n">context</span><span class="o">.</span><span class="n">tables</span><span class="p">[</span><span class="n">name</span><span class="p">]</span> +</span><span id="PythonExecutor-170"><a href="#PythonExecutor-170"><span class="linenos">170</span></a> <span class="n">start</span> <span class="o">=</span> <span class="nb">max</span><span class="p">(</span><span class="n">r</span><span class="o">.</span><span class="n">stop</span> <span class="k">for</span> <span class="n">r</span> <span class="ow">in</span> <span class="n">column_ranges</span><span class="o">.</span><span class="n">values</span><span class="p">())</span> +</span><span id="PythonExecutor-171"><a href="#PythonExecutor-171"><span class="linenos">171</span></a> <span class="n">column_ranges</span><span class="p">[</span><span class="n">name</span><span class="p">]</span> <span class="o">=</span> <span class="nb">range</span><span class="p">(</span><span class="n">start</span><span class="p">,</span> <span class="nb">len</span><span class="p">(</span><span class="n">table</span><span class="o">.</span><span class="n">columns</span><span class="p">)</span> <span class="o">+</span> <span class="n">start</span><span class="p">)</span> +</span><span id="PythonExecutor-172"><a href="#PythonExecutor-172"><span class="linenos">172</span></a> <span class="n">join_context</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</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="PythonExecutor-173"><a href="#PythonExecutor-173"><span class="linenos">173</span></a> +</span><span id="PythonExecutor-174"><a href="#PythonExecutor-174"><span class="linenos">174</span></a> <span class="k">if</span> <span class="n">join</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"source_key"</span><span class="p">):</span> +</span><span id="PythonExecutor-175"><a href="#PythonExecutor-175"><span class="linenos">175</span></a> <span class="n">table</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">hash_join</span><span class="p">(</span><span class="n">join</span><span class="p">,</span> <span class="n">source_context</span><span class="p">,</span> <span class="n">join_context</span><span class="p">)</span> +</span><span id="PythonExecutor-176"><a href="#PythonExecutor-176"><span class="linenos">176</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="PythonExecutor-177"><a href="#PythonExecutor-177"><span class="linenos">177</span></a> <span class="n">table</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">nested_loop_join</span><span class="p">(</span><span class="n">join</span><span class="p">,</span> <span class="n">source_context</span><span class="p">,</span> <span class="n">join_context</span><span class="p">)</span> +</span><span id="PythonExecutor-178"><a href="#PythonExecutor-178"><span class="linenos">178</span></a> +</span><span id="PythonExecutor-179"><a href="#PythonExecutor-179"><span class="linenos">179</span></a> <span class="n">source_context</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">(</span> +</span><span id="PythonExecutor-180"><a href="#PythonExecutor-180"><span class="linenos">180</span></a> <span class="p">{</span> +</span><span id="PythonExecutor-181"><a href="#PythonExecutor-181"><span class="linenos">181</span></a> <span class="n">name</span><span class="p">:</span> <span class="n">Table</span><span class="p">(</span><span class="n">table</span><span class="o">.</span><span class="n">columns</span><span class="p">,</span> <span class="n">table</span><span class="o">.</span><span class="n">rows</span><span class="p">,</span> <span class="n">column_range</span><span class="p">)</span> +</span><span id="PythonExecutor-182"><a href="#PythonExecutor-182"><span class="linenos">182</span></a> <span class="k">for</span> <span class="n">name</span><span class="p">,</span> <span class="n">column_range</span> <span class="ow">in</span> <span class="n">column_ranges</span><span class="o">.</span><span class="n">items</span><span class="p">()</span> +</span><span id="PythonExecutor-183"><a href="#PythonExecutor-183"><span class="linenos">183</span></a> <span class="p">}</span> +</span><span id="PythonExecutor-184"><a href="#PythonExecutor-184"><span class="linenos">184</span></a> <span class="p">)</span> +</span><span id="PythonExecutor-185"><a href="#PythonExecutor-185"><span class="linenos">185</span></a> <span class="n">condition</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generate</span><span class="p">(</span><span class="n">join</span><span class="p">[</span><span class="s2">"condition"</span><span class="p">])</span> +</span><span id="PythonExecutor-186"><a href="#PythonExecutor-186"><span class="linenos">186</span></a> <span class="k">if</span> <span class="n">condition</span><span class="p">:</span> +</span><span id="PythonExecutor-187"><a href="#PythonExecutor-187"><span class="linenos">187</span></a> <span class="n">source_context</span><span class="o">.</span><span class="n">filter</span><span class="p">(</span><span class="n">condition</span><span class="p">)</span> +</span><span id="PythonExecutor-188"><a href="#PythonExecutor-188"><span class="linenos">188</span></a> +</span><span id="PythonExecutor-189"><a href="#PythonExecutor-189"><span class="linenos">189</span></a> <span class="n">condition</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generate</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">condition</span><span class="p">)</span> +</span><span id="PythonExecutor-190"><a href="#PythonExecutor-190"><span class="linenos">190</span></a> <span class="n">projections</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generate_tuple</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">projections</span><span class="p">)</span> +</span><span id="PythonExecutor-191"><a href="#PythonExecutor-191"><span class="linenos">191</span></a> +</span><span id="PythonExecutor-192"><a href="#PythonExecutor-192"><span class="linenos">192</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">condition</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">projections</span><span class="p">:</span> +</span><span id="PythonExecutor-193"><a href="#PythonExecutor-193"><span class="linenos">193</span></a> <span class="k">return</span> <span class="n">source_context</span> +</span><span id="PythonExecutor-194"><a href="#PythonExecutor-194"><span class="linenos">194</span></a> +</span><span id="PythonExecutor-195"><a href="#PythonExecutor-195"><span class="linenos">195</span></a> <span class="n">sink</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">table</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">projections</span> <span class="k">if</span> <span class="n">projections</span> <span class="k">else</span> <span class="n">source_context</span><span class="o">.</span><span class="n">columns</span><span class="p">)</span> +</span><span id="PythonExecutor-196"><a href="#PythonExecutor-196"><span class="linenos">196</span></a> +</span><span id="PythonExecutor-197"><a href="#PythonExecutor-197"><span class="linenos">197</span></a> <span class="k">for</span> <span class="n">reader</span><span class="p">,</span> <span class="n">ctx</span> <span class="ow">in</span> <span class="n">source_context</span><span class="p">:</span> +</span><span id="PythonExecutor-198"><a href="#PythonExecutor-198"><span class="linenos">198</span></a> <span class="k">if</span> <span class="n">condition</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">ctx</span><span class="o">.</span><span class="n">eval</span><span class="p">(</span><span class="n">condition</span><span class="p">):</span> +</span><span id="PythonExecutor-199"><a href="#PythonExecutor-199"><span class="linenos">199</span></a> <span class="k">continue</span> +</span><span id="PythonExecutor-200"><a href="#PythonExecutor-200"><span class="linenos">200</span></a> +</span><span id="PythonExecutor-201"><a href="#PythonExecutor-201"><span class="linenos">201</span></a> <span class="k">if</span> <span class="n">projections</span><span class="p">:</span> +</span><span id="PythonExecutor-202"><a href="#PythonExecutor-202"><span class="linenos">202</span></a> <span class="n">sink</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">ctx</span><span class="o">.</span><span class="n">eval_tuple</span><span class="p">(</span><span class="n">projections</span><span class="p">))</span> +</span><span id="PythonExecutor-203"><a href="#PythonExecutor-203"><span class="linenos">203</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="PythonExecutor-204"><a href="#PythonExecutor-204"><span class="linenos">204</span></a> <span class="n">sink</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">reader</span><span class="o">.</span><span class="n">row</span><span class="p">)</span> +</span><span id="PythonExecutor-205"><a href="#PythonExecutor-205"><span class="linenos">205</span></a> +</span><span id="PythonExecutor-206"><a href="#PythonExecutor-206"><span class="linenos">206</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">sink</span><span class="p">)</span> <span class="o">>=</span> <span class="n">step</span><span class="o">.</span><span class="n">limit</span><span class="p">:</span> +</span><span id="PythonExecutor-207"><a href="#PythonExecutor-207"><span class="linenos">207</span></a> <span class="k">break</span> +</span><span id="PythonExecutor-208"><a href="#PythonExecutor-208"><span class="linenos">208</span></a> +</span><span id="PythonExecutor-209"><a href="#PythonExecutor-209"><span class="linenos">209</span></a> <span class="k">if</span> <span class="n">projections</span><span class="p">:</span> +</span><span id="PythonExecutor-210"><a href="#PythonExecutor-210"><span class="linenos">210</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">({</span><span class="n">step</span><span class="o">.</span><span class="n">name</span><span class="p">:</span> <span class="n">sink</span><span class="p">})</span> +</span><span id="PythonExecutor-211"><a href="#PythonExecutor-211"><span class="linenos">211</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="PythonExecutor-212"><a href="#PythonExecutor-212"><span class="linenos">212</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">(</span> +</span><span id="PythonExecutor-213"><a href="#PythonExecutor-213"><span class="linenos">213</span></a> <span class="p">{</span> +</span><span id="PythonExecutor-214"><a href="#PythonExecutor-214"><span class="linenos">214</span></a> <span class="n">name</span><span class="p">:</span> <span class="n">Table</span><span class="p">(</span><span class="n">table</span><span class="o">.</span><span class="n">columns</span><span class="p">,</span> <span class="n">sink</span><span class="o">.</span><span class="n">rows</span><span class="p">,</span> <span class="n">table</span><span class="o">.</span><span class="n">column_range</span><span class="p">)</span> +</span><span id="PythonExecutor-215"><a href="#PythonExecutor-215"><span class="linenos">215</span></a> <span class="k">for</span> <span class="n">name</span><span class="p">,</span> <span class="n">table</span> <span class="ow">in</span> <span class="n">source_context</span><span class="o">.</span><span class="n">tables</span><span class="o">.</span><span class="n">items</span><span class="p">()</span> +</span><span id="PythonExecutor-216"><a href="#PythonExecutor-216"><span class="linenos">216</span></a> <span class="p">}</span> +</span><span id="PythonExecutor-217"><a href="#PythonExecutor-217"><span class="linenos">217</span></a> <span class="p">)</span> +</span><span id="PythonExecutor-218"><a href="#PythonExecutor-218"><span class="linenos">218</span></a> +</span><span id="PythonExecutor-219"><a href="#PythonExecutor-219"><span class="linenos">219</span></a> <span class="k">def</span> <span class="nf">nested_loop_join</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">_join</span><span class="p">,</span> <span class="n">source_context</span><span class="p">,</span> <span class="n">join_context</span><span class="p">):</span> +</span><span id="PythonExecutor-220"><a href="#PythonExecutor-220"><span class="linenos">220</span></a> <span class="n">table</span> <span class="o">=</span> <span class="n">Table</span><span class="p">(</span><span class="n">source_context</span><span class="o">.</span><span class="n">columns</span> <span class="o">+</span> <span class="n">join_context</span><span class="o">.</span><span class="n">columns</span><span class="p">)</span> +</span><span id="PythonExecutor-221"><a href="#PythonExecutor-221"><span class="linenos">221</span></a> +</span><span id="PythonExecutor-222"><a href="#PythonExecutor-222"><span class="linenos">222</span></a> <span class="k">for</span> <span class="n">reader_a</span><span class="p">,</span> <span class="n">_</span> <span class="ow">in</span> <span class="n">source_context</span><span class="p">:</span> +</span><span id="PythonExecutor-223"><a href="#PythonExecutor-223"><span class="linenos">223</span></a> <span class="k">for</span> <span class="n">reader_b</span><span class="p">,</span> <span class="n">_</span> <span class="ow">in</span> <span class="n">join_context</span><span class="p">:</span> +</span><span id="PythonExecutor-224"><a href="#PythonExecutor-224"><span class="linenos">224</span></a> <span class="n">table</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">reader_a</span><span class="o">.</span><span class="n">row</span> <span class="o">+</span> <span class="n">reader_b</span><span class="o">.</span><span class="n">row</span><span class="p">)</span> +</span><span id="PythonExecutor-225"><a href="#PythonExecutor-225"><span class="linenos">225</span></a> +</span><span id="PythonExecutor-226"><a href="#PythonExecutor-226"><span class="linenos">226</span></a> <span class="k">return</span> <span class="n">table</span> +</span><span id="PythonExecutor-227"><a href="#PythonExecutor-227"><span class="linenos">227</span></a> +</span><span id="PythonExecutor-228"><a href="#PythonExecutor-228"><span class="linenos">228</span></a> <span class="k">def</span> <span class="nf">hash_join</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">join</span><span class="p">,</span> <span class="n">source_context</span><span class="p">,</span> <span class="n">join_context</span><span class="p">):</span> +</span><span id="PythonExecutor-229"><a href="#PythonExecutor-229"><span class="linenos">229</span></a> <span class="n">source_key</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generate_tuple</span><span class="p">(</span><span class="n">join</span><span class="p">[</span><span class="s2">"source_key"</span><span class="p">])</span> +</span><span id="PythonExecutor-230"><a href="#PythonExecutor-230"><span class="linenos">230</span></a> <span class="n">join_key</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generate_tuple</span><span class="p">(</span><span class="n">join</span><span class="p">[</span><span class="s2">"join_key"</span><span class="p">])</span> +</span><span id="PythonExecutor-231"><a href="#PythonExecutor-231"><span class="linenos">231</span></a> <span class="n">left</span> <span class="o">=</span> <span class="n">join</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"side"</span><span class="p">)</span> <span class="o">==</span> <span class="s2">"LEFT"</span> +</span><span id="PythonExecutor-232"><a href="#PythonExecutor-232"><span class="linenos">232</span></a> <span class="n">right</span> <span class="o">=</span> <span class="n">join</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"side"</span><span class="p">)</span> <span class="o">==</span> <span class="s2">"RIGHT"</span> +</span><span id="PythonExecutor-233"><a href="#PythonExecutor-233"><span class="linenos">233</span></a> +</span><span id="PythonExecutor-234"><a href="#PythonExecutor-234"><span class="linenos">234</span></a> <span class="n">results</span> <span class="o">=</span> <span class="n">collections</span><span class="o">.</span><span class="n">defaultdict</span><span class="p">(</span><span class="k">lambda</span><span class="p">:</span> <span class="p">([],</span> <span class="p">[]))</span> +</span><span id="PythonExecutor-235"><a href="#PythonExecutor-235"><span class="linenos">235</span></a> +</span><span id="PythonExecutor-236"><a href="#PythonExecutor-236"><span class="linenos">236</span></a> <span class="k">for</span> <span class="n">reader</span><span class="p">,</span> <span class="n">ctx</span> <span class="ow">in</span> <span class="n">source_context</span><span class="p">:</span> +</span><span id="PythonExecutor-237"><a href="#PythonExecutor-237"><span class="linenos">237</span></a> <span class="n">results</span><span class="p">[</span><span class="n">ctx</span><span class="o">.</span><span class="n">eval_tuple</span><span class="p">(</span><span class="n">source_key</span><span class="p">)][</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">reader</span><span class="o">.</span><span class="n">row</span><span class="p">)</span> +</span><span id="PythonExecutor-238"><a href="#PythonExecutor-238"><span class="linenos">238</span></a> <span class="k">for</span> <span class="n">reader</span><span class="p">,</span> <span class="n">ctx</span> <span class="ow">in</span> <span class="n">join_context</span><span class="p">:</span> +</span><span id="PythonExecutor-239"><a href="#PythonExecutor-239"><span class="linenos">239</span></a> <span class="n">results</span><span class="p">[</span><span class="n">ctx</span><span class="o">.</span><span class="n">eval_tuple</span><span class="p">(</span><span class="n">join_key</span><span class="p">)][</span><span class="mi">1</span><span class="p">]</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">reader</span><span class="o">.</span><span class="n">row</span><span class="p">)</span> +</span><span id="PythonExecutor-240"><a href="#PythonExecutor-240"><span class="linenos">240</span></a> +</span><span id="PythonExecutor-241"><a href="#PythonExecutor-241"><span class="linenos">241</span></a> <span class="n">table</span> <span class="o">=</span> <span class="n">Table</span><span class="p">(</span><span class="n">source_context</span><span class="o">.</span><span class="n">columns</span> <span class="o">+</span> <span class="n">join_context</span><span class="o">.</span><span class="n">columns</span><span class="p">)</span> +</span><span id="PythonExecutor-242"><a href="#PythonExecutor-242"><span class="linenos">242</span></a> <span class="n">nulls</span> <span class="o">=</span> <span class="p">[(</span><span class="kc">None</span><span class="p">,)</span> <span class="o">*</span> <span class="nb">len</span><span class="p">(</span><span class="n">join_context</span><span class="o">.</span><span class="n">columns</span> <span class="k">if</span> <span class="n">left</span> <span class="k">else</span> <span class="n">source_context</span><span class="o">.</span><span class="n">columns</span><span class="p">)]</span> +</span><span id="PythonExecutor-243"><a href="#PythonExecutor-243"><span class="linenos">243</span></a> +</span><span id="PythonExecutor-244"><a href="#PythonExecutor-244"><span class="linenos">244</span></a> <span class="k">for</span> <span class="n">a_group</span><span class="p">,</span> <span class="n">b_group</span> <span class="ow">in</span> <span class="n">results</span><span class="o">.</span><span class="n">values</span><span class="p">():</span> +</span><span id="PythonExecutor-245"><a href="#PythonExecutor-245"><span class="linenos">245</span></a> <span class="k">if</span> <span class="n">left</span><span class="p">:</span> +</span><span id="PythonExecutor-246"><a href="#PythonExecutor-246"><span class="linenos">246</span></a> <span class="n">b_group</span> <span class="o">=</span> <span class="n">b_group</span> <span class="ow">or</span> <span class="n">nulls</span> +</span><span id="PythonExecutor-247"><a href="#PythonExecutor-247"><span class="linenos">247</span></a> <span class="k">elif</span> <span class="n">right</span><span class="p">:</span> +</span><span id="PythonExecutor-248"><a href="#PythonExecutor-248"><span class="linenos">248</span></a> <span class="n">a_group</span> <span class="o">=</span> <span class="n">a_group</span> <span class="ow">or</span> <span class="n">nulls</span> +</span><span id="PythonExecutor-249"><a href="#PythonExecutor-249"><span class="linenos">249</span></a> +</span><span id="PythonExecutor-250"><a href="#PythonExecutor-250"><span class="linenos">250</span></a> <span class="k">for</span> <span class="n">a_row</span><span class="p">,</span> <span class="n">b_row</span> <span class="ow">in</span> <span class="n">itertools</span><span class="o">.</span><span class="n">product</span><span class="p">(</span><span class="n">a_group</span><span class="p">,</span> <span class="n">b_group</span><span class="p">):</span> +</span><span id="PythonExecutor-251"><a href="#PythonExecutor-251"><span class="linenos">251</span></a> <span class="n">table</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">a_row</span> <span class="o">+</span> <span class="n">b_row</span><span class="p">)</span> +</span><span id="PythonExecutor-252"><a href="#PythonExecutor-252"><span class="linenos">252</span></a> +</span><span id="PythonExecutor-253"><a href="#PythonExecutor-253"><span class="linenos">253</span></a> <span class="k">return</span> <span class="n">table</span> +</span><span id="PythonExecutor-254"><a href="#PythonExecutor-254"><span class="linenos">254</span></a> +</span><span id="PythonExecutor-255"><a href="#PythonExecutor-255"><span class="linenos">255</span></a> <span class="k">def</span> <span class="nf">aggregate</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">step</span><span class="p">,</span> <span class="n">context</span><span class="p">):</span> +</span><span id="PythonExecutor-256"><a href="#PythonExecutor-256"><span class="linenos">256</span></a> <span class="n">group_by</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generate_tuple</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">group</span><span class="o">.</span><span class="n">values</span><span class="p">())</span> +</span><span id="PythonExecutor-257"><a href="#PythonExecutor-257"><span class="linenos">257</span></a> <span class="n">aggregations</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generate_tuple</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">aggregations</span><span class="p">)</span> +</span><span id="PythonExecutor-258"><a href="#PythonExecutor-258"><span class="linenos">258</span></a> <span class="n">operands</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generate_tuple</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">operands</span><span class="p">)</span> +</span><span id="PythonExecutor-259"><a href="#PythonExecutor-259"><span class="linenos">259</span></a> +</span><span id="PythonExecutor-260"><a href="#PythonExecutor-260"><span class="linenos">260</span></a> <span class="k">if</span> <span class="n">operands</span><span class="p">:</span> +</span><span id="PythonExecutor-261"><a href="#PythonExecutor-261"><span class="linenos">261</span></a> <span class="n">operand_table</span> <span class="o">=</span> <span class="n">Table</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">table</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">operands</span><span class="p">)</span><span class="o">.</span><span class="n">columns</span><span class="p">)</span> +</span><span id="PythonExecutor-262"><a href="#PythonExecutor-262"><span class="linenos">262</span></a> +</span><span id="PythonExecutor-263"><a href="#PythonExecutor-263"><span class="linenos">263</span></a> <span class="k">for</span> <span class="n">reader</span><span class="p">,</span> <span class="n">ctx</span> <span class="ow">in</span> <span class="n">context</span><span class="p">:</span> +</span><span id="PythonExecutor-264"><a href="#PythonExecutor-264"><span class="linenos">264</span></a> <span class="n">operand_table</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">ctx</span><span class="o">.</span><span class="n">eval_tuple</span><span class="p">(</span><span class="n">operands</span><span class="p">))</span> +</span><span id="PythonExecutor-265"><a href="#PythonExecutor-265"><span class="linenos">265</span></a> +</span><span id="PythonExecutor-266"><a href="#PythonExecutor-266"><span class="linenos">266</span></a> <span class="k">for</span> <span class="n">i</span><span class="p">,</span> <span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">)</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="nb">zip</span><span class="p">(</span><span class="n">context</span><span class="o">.</span><span class="n">table</span><span class="o">.</span><span class="n">rows</span><span class="p">,</span> <span class="n">operand_table</span><span class="o">.</span><span class="n">rows</span><span class="p">)):</span> +</span><span id="PythonExecutor-267"><a href="#PythonExecutor-267"><span class="linenos">267</span></a> <span class="n">context</span><span class="o">.</span><span class="n">table</span><span class="o">.</span><span class="n">rows</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">=</span> <span class="n">a</span> <span class="o">+</span> <span class="n">b</span> +</span><span id="PythonExecutor-268"><a href="#PythonExecutor-268"><span class="linenos">268</span></a> +</span><span id="PythonExecutor-269"><a href="#PythonExecutor-269"><span class="linenos">269</span></a> <span class="n">width</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="n">context</span><span class="o">.</span><span class="n">columns</span><span class="p">)</span> +</span><span id="PythonExecutor-270"><a href="#PythonExecutor-270"><span class="linenos">270</span></a> <span class="n">context</span><span class="o">.</span><span class="n">add_columns</span><span class="p">(</span><span class="o">*</span><span class="n">operand_table</span><span class="o">.</span><span class="n">columns</span><span class="p">)</span> +</span><span id="PythonExecutor-271"><a href="#PythonExecutor-271"><span class="linenos">271</span></a> +</span><span id="PythonExecutor-272"><a href="#PythonExecutor-272"><span class="linenos">272</span></a> <span class="n">operand_table</span> <span class="o">=</span> <span class="n">Table</span><span class="p">(</span> +</span><span id="PythonExecutor-273"><a href="#PythonExecutor-273"><span class="linenos">273</span></a> <span class="n">context</span><span class="o">.</span><span class="n">columns</span><span class="p">,</span> +</span><span id="PythonExecutor-274"><a href="#PythonExecutor-274"><span class="linenos">274</span></a> <span class="n">context</span><span class="o">.</span><span class="n">table</span><span class="o">.</span><span class="n">rows</span><span class="p">,</span> +</span><span id="PythonExecutor-275"><a href="#PythonExecutor-275"><span class="linenos">275</span></a> <span class="nb">range</span><span class="p">(</span><span class="n">width</span><span class="p">,</span> <span class="n">width</span> <span class="o">+</span> <span class="nb">len</span><span class="p">(</span><span class="n">operand_table</span><span class="o">.</span><span class="n">columns</span><span class="p">)),</span> +</span><span id="PythonExecutor-276"><a href="#PythonExecutor-276"><span class="linenos">276</span></a> <span class="p">)</span> +</span><span id="PythonExecutor-277"><a href="#PythonExecutor-277"><span class="linenos">277</span></a> +</span><span id="PythonExecutor-278"><a href="#PythonExecutor-278"><span class="linenos">278</span></a> <span class="n">context</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">(</span> +</span><span id="PythonExecutor-279"><a href="#PythonExecutor-279"><span class="linenos">279</span></a> <span class="p">{</span> +</span><span id="PythonExecutor-280"><a href="#PythonExecutor-280"><span class="linenos">280</span></a> <span class="kc">None</span><span class="p">:</span> <span class="n">operand_table</span><span class="p">,</span> +</span><span id="PythonExecutor-281"><a href="#PythonExecutor-281"><span class="linenos">281</span></a> <span class="o">**</span><span class="n">context</span><span class="o">.</span><span class="n">tables</span><span class="p">,</span> +</span><span id="PythonExecutor-282"><a href="#PythonExecutor-282"><span class="linenos">282</span></a> <span class="p">}</span> +</span><span id="PythonExecutor-283"><a href="#PythonExecutor-283"><span class="linenos">283</span></a> <span class="p">)</span> +</span><span id="PythonExecutor-284"><a href="#PythonExecutor-284"><span class="linenos">284</span></a> +</span><span id="PythonExecutor-285"><a href="#PythonExecutor-285"><span class="linenos">285</span></a> <span class="n">context</span><span class="o">.</span><span class="n">sort</span><span class="p">(</span><span class="n">group_by</span><span class="p">)</span> +</span><span id="PythonExecutor-286"><a href="#PythonExecutor-286"><span class="linenos">286</span></a> +</span><span id="PythonExecutor-287"><a href="#PythonExecutor-287"><span class="linenos">287</span></a> <span class="n">group</span> <span class="o">=</span> <span class="kc">None</span> +</span><span id="PythonExecutor-288"><a href="#PythonExecutor-288"><span class="linenos">288</span></a> <span class="n">start</span> <span class="o">=</span> <span class="mi">0</span> +</span><span id="PythonExecutor-289"><a href="#PythonExecutor-289"><span class="linenos">289</span></a> <span class="n">end</span> <span class="o">=</span> <span class="mi">1</span> +</span><span id="PythonExecutor-290"><a href="#PythonExecutor-290"><span class="linenos">290</span></a> <span class="n">length</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="n">context</span><span class="o">.</span><span class="n">table</span><span class="p">)</span> +</span><span id="PythonExecutor-291"><a href="#PythonExecutor-291"><span class="linenos">291</span></a> <span class="n">table</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">table</span><span class="p">(</span><span class="nb">list</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">group</span><span class="p">)</span> <span class="o">+</span> <span class="n">step</span><span class="o">.</span><span class="n">aggregations</span><span class="p">)</span> +</span><span id="PythonExecutor-292"><a href="#PythonExecutor-292"><span class="linenos">292</span></a> <span class="n">condition</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generate</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">condition</span><span class="p">)</span> +</span><span id="PythonExecutor-293"><a href="#PythonExecutor-293"><span class="linenos">293</span></a> +</span><span id="PythonExecutor-294"><a href="#PythonExecutor-294"><span class="linenos">294</span></a> <span class="k">def</span> <span class="nf">add_row</span><span class="p">():</span> +</span><span id="PythonExecutor-295"><a href="#PythonExecutor-295"><span class="linenos">295</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">condition</span> <span class="ow">or</span> <span class="n">context</span><span class="o">.</span><span class="n">eval</span><span class="p">(</span><span class="n">condition</span><span class="p">):</span> +</span><span id="PythonExecutor-296"><a href="#PythonExecutor-296"><span class="linenos">296</span></a> <span class="n">table</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">group</span> <span class="o">+</span> <span class="n">context</span><span class="o">.</span><span class="n">eval_tuple</span><span class="p">(</span><span class="n">aggregations</span><span class="p">))</span> +</span><span id="PythonExecutor-297"><a href="#PythonExecutor-297"><span class="linenos">297</span></a> +</span><span id="PythonExecutor-298"><a href="#PythonExecutor-298"><span class="linenos">298</span></a> <span class="k">if</span> <span class="n">length</span><span class="p">:</span> +</span><span id="PythonExecutor-299"><a href="#PythonExecutor-299"><span class="linenos">299</span></a> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">length</span><span class="p">):</span> +</span><span id="PythonExecutor-300"><a href="#PythonExecutor-300"><span class="linenos">300</span></a> <span class="n">context</span><span class="o">.</span><span class="n">set_index</span><span class="p">(</span><span class="n">i</span><span class="p">)</span> +</span><span id="PythonExecutor-301"><a href="#PythonExecutor-301"><span class="linenos">301</span></a> <span class="n">key</span> <span class="o">=</span> <span class="n">context</span><span class="o">.</span><span class="n">eval_tuple</span><span class="p">(</span><span class="n">group_by</span><span class="p">)</span> +</span><span id="PythonExecutor-302"><a href="#PythonExecutor-302"><span class="linenos">302</span></a> <span class="n">group</span> <span class="o">=</span> <span class="n">key</span> <span class="k">if</span> <span class="n">group</span> <span class="ow">is</span> <span class="kc">None</span> <span class="k">else</span> <span class="n">group</span> +</span><span id="PythonExecutor-303"><a href="#PythonExecutor-303"><span class="linenos">303</span></a> <span class="n">end</span> <span class="o">+=</span> <span class="mi">1</span> +</span><span id="PythonExecutor-304"><a href="#PythonExecutor-304"><span class="linenos">304</span></a> <span class="k">if</span> <span class="n">key</span> <span class="o">!=</span> <span class="n">group</span><span class="p">:</span> +</span><span id="PythonExecutor-305"><a href="#PythonExecutor-305"><span class="linenos">305</span></a> <span class="n">context</span><span class="o">.</span><span class="n">set_range</span><span class="p">(</span><span class="n">start</span><span class="p">,</span> <span class="n">end</span> <span class="o">-</span> <span class="mi">2</span><span class="p">)</span> +</span><span id="PythonExecutor-306"><a href="#PythonExecutor-306"><span class="linenos">306</span></a> <span class="n">add_row</span><span class="p">()</span> +</span><span id="PythonExecutor-307"><a href="#PythonExecutor-307"><span class="linenos">307</span></a> <span class="n">group</span> <span class="o">=</span> <span class="n">key</span> +</span><span id="PythonExecutor-308"><a href="#PythonExecutor-308"><span class="linenos">308</span></a> <span class="n">start</span> <span class="o">=</span> <span class="n">end</span> <span class="o">-</span> <span class="mi">2</span> +</span><span id="PythonExecutor-309"><a href="#PythonExecutor-309"><span class="linenos">309</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">table</span><span class="o">.</span><span class="n">rows</span><span class="p">)</span> <span class="o">>=</span> <span class="n">step</span><span class="o">.</span><span class="n">limit</span><span class="p">:</span> +</span><span id="PythonExecutor-310"><a href="#PythonExecutor-310"><span class="linenos">310</span></a> <span class="k">break</span> +</span><span id="PythonExecutor-311"><a href="#PythonExecutor-311"><span class="linenos">311</span></a> <span class="k">if</span> <span class="n">i</span> <span class="o">==</span> <span class="n">length</span> <span class="o">-</span> <span class="mi">1</span><span class="p">:</span> +</span><span id="PythonExecutor-312"><a href="#PythonExecutor-312"><span class="linenos">312</span></a> <span class="n">context</span><span class="o">.</span><span class="n">set_range</span><span class="p">(</span><span class="n">start</span><span class="p">,</span> <span class="n">end</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)</span> +</span><span id="PythonExecutor-313"><a href="#PythonExecutor-313"><span class="linenos">313</span></a> <span class="n">add_row</span><span class="p">()</span> +</span><span id="PythonExecutor-314"><a href="#PythonExecutor-314"><span class="linenos">314</span></a> <span class="k">elif</span> <span class="n">step</span><span class="o">.</span><span class="n">limit</span> <span class="o">></span> <span class="mi">0</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">group_by</span><span class="p">:</span> +</span><span id="PythonExecutor-315"><a href="#PythonExecutor-315"><span class="linenos">315</span></a> <span class="n">context</span><span class="o">.</span><span class="n">set_range</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span> +</span><span id="PythonExecutor-316"><a href="#PythonExecutor-316"><span class="linenos">316</span></a> <span class="n">table</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">context</span><span class="o">.</span><span class="n">eval_tuple</span><span class="p">(</span><span class="n">aggregations</span><span class="p">))</span> +</span><span id="PythonExecutor-317"><a href="#PythonExecutor-317"><span class="linenos">317</span></a> +</span><span id="PythonExecutor-318"><a href="#PythonExecutor-318"><span class="linenos">318</span></a> <span class="n">context</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">({</span><span class="n">step</span><span class="o">.</span><span class="n">name</span><span class="p">:</span> <span class="n">table</span><span class="p">,</span> <span class="o">**</span><span class="p">{</span><span class="n">name</span><span class="p">:</span> <span class="n">table</span> <span class="k">for</span> <span class="n">name</span> <span class="ow">in</span> <span class="n">context</span><span class="o">.</span><span class="n">tables</span><span class="p">}})</span> +</span><span id="PythonExecutor-319"><a href="#PythonExecutor-319"><span class="linenos">319</span></a> +</span><span id="PythonExecutor-320"><a href="#PythonExecutor-320"><span class="linenos">320</span></a> <span class="k">if</span> <span class="n">step</span><span class="o">.</span><span class="n">projections</span><span class="p">:</span> +</span><span id="PythonExecutor-321"><a href="#PythonExecutor-321"><span class="linenos">321</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">scan</span><span class="p">(</span><span class="n">step</span><span class="p">,</span> <span class="n">context</span><span class="p">)</span> +</span><span id="PythonExecutor-322"><a href="#PythonExecutor-322"><span class="linenos">322</span></a> <span class="k">return</span> <span class="n">context</span> +</span><span id="PythonExecutor-323"><a href="#PythonExecutor-323"><span class="linenos">323</span></a> +</span><span id="PythonExecutor-324"><a href="#PythonExecutor-324"><span class="linenos">324</span></a> <span class="k">def</span> <span class="nf">sort</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">step</span><span class="p">,</span> <span class="n">context</span><span class="p">):</span> +</span><span id="PythonExecutor-325"><a href="#PythonExecutor-325"><span class="linenos">325</span></a> <span class="n">projections</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generate_tuple</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">projections</span><span class="p">)</span> +</span><span id="PythonExecutor-326"><a href="#PythonExecutor-326"><span class="linenos">326</span></a> <span class="n">projection_columns</span> <span class="o">=</span> <span class="p">[</span><span class="n">p</span><span class="o">.</span><span class="n">alias_or_name</span> <span class="k">for</span> <span class="n">p</span> <span class="ow">in</span> <span class="n">step</span><span class="o">.</span><span class="n">projections</span><span class="p">]</span> +</span><span id="PythonExecutor-327"><a href="#PythonExecutor-327"><span class="linenos">327</span></a> <span class="n">all_columns</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">context</span><span class="o">.</span><span class="n">columns</span><span class="p">)</span> <span class="o">+</span> <span class="n">projection_columns</span> +</span><span id="PythonExecutor-328"><a href="#PythonExecutor-328"><span class="linenos">328</span></a> <span class="n">sink</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">table</span><span class="p">(</span><span class="n">all_columns</span><span class="p">)</span> +</span><span id="PythonExecutor-329"><a href="#PythonExecutor-329"><span class="linenos">329</span></a> <span class="k">for</span> <span class="n">reader</span><span class="p">,</span> <span class="n">ctx</span> <span class="ow">in</span> <span class="n">context</span><span class="p">:</span> +</span><span id="PythonExecutor-330"><a href="#PythonExecutor-330"><span class="linenos">330</span></a> <span class="n">sink</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">reader</span><span class="o">.</span><span class="n">row</span> <span class="o">+</span> <span class="n">ctx</span><span class="o">.</span><span class="n">eval_tuple</span><span class="p">(</span><span class="n">projections</span><span class="p">))</span> +</span><span id="PythonExecutor-331"><a href="#PythonExecutor-331"><span class="linenos">331</span></a> +</span><span id="PythonExecutor-332"><a href="#PythonExecutor-332"><span class="linenos">332</span></a> <span class="n">sort_ctx</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">(</span> +</span><span id="PythonExecutor-333"><a href="#PythonExecutor-333"><span class="linenos">333</span></a> <span class="p">{</span> +</span><span id="PythonExecutor-334"><a href="#PythonExecutor-334"><span class="linenos">334</span></a> <span class="kc">None</span><span class="p">:</span> <span class="n">sink</span><span class="p">,</span> +</span><span id="PythonExecutor-335"><a href="#PythonExecutor-335"><span class="linenos">335</span></a> <span class="o">**</span><span class="p">{</span><span class="n">table</span><span class="p">:</span> <span class="n">sink</span> <span class="k">for</span> <span class="n">table</span> <span class="ow">in</span> <span class="n">context</span><span class="o">.</span><span class="n">tables</span><span class="p">},</span> +</span><span id="PythonExecutor-336"><a href="#PythonExecutor-336"><span class="linenos">336</span></a> <span class="p">}</span> +</span><span id="PythonExecutor-337"><a href="#PythonExecutor-337"><span class="linenos">337</span></a> <span class="p">)</span> +</span><span id="PythonExecutor-338"><a href="#PythonExecutor-338"><span class="linenos">338</span></a> <span class="n">sort_ctx</span><span class="o">.</span><span class="n">sort</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">generate_tuple</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">key</span><span class="p">))</span> +</span><span id="PythonExecutor-339"><a href="#PythonExecutor-339"><span class="linenos">339</span></a> +</span><span id="PythonExecutor-340"><a href="#PythonExecutor-340"><span class="linenos">340</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">math</span><span class="o">.</span><span class="n">isinf</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">limit</span><span class="p">):</span> +</span><span id="PythonExecutor-341"><a href="#PythonExecutor-341"><span class="linenos">341</span></a> <span class="n">sort_ctx</span><span class="o">.</span><span class="n">table</span><span class="o">.</span><span class="n">rows</span> <span class="o">=</span> <span class="n">sort_ctx</span><span class="o">.</span><span class="n">table</span><span class="o">.</span><span class="n">rows</span><span class="p">[</span><span class="mi">0</span> <span class="p">:</span> <span class="n">step</span><span class="o">.</span><span class="n">limit</span><span class="p">]</span> +</span><span id="PythonExecutor-342"><a href="#PythonExecutor-342"><span class="linenos">342</span></a> +</span><span id="PythonExecutor-343"><a href="#PythonExecutor-343"><span class="linenos">343</span></a> <span class="n">output</span> <span class="o">=</span> <span class="n">Table</span><span class="p">(</span> +</span><span id="PythonExecutor-344"><a href="#PythonExecutor-344"><span class="linenos">344</span></a> <span class="n">projection_columns</span><span class="p">,</span> +</span><span id="PythonExecutor-345"><a href="#PythonExecutor-345"><span class="linenos">345</span></a> <span class="n">rows</span><span class="o">=</span><span class="p">[</span><span class="n">r</span><span class="p">[</span><span class="nb">len</span><span class="p">(</span><span class="n">context</span><span class="o">.</span><span class="n">columns</span><span class="p">)</span> <span class="p">:</span> <span class="nb">len</span><span class="p">(</span><span class="n">all_columns</span><span class="p">)]</span> <span class="k">for</span> <span class="n">r</span> <span class="ow">in</span> <span class="n">sort_ctx</span><span class="o">.</span><span class="n">table</span><span class="o">.</span><span class="n">rows</span><span class="p">],</span> +</span><span id="PythonExecutor-346"><a href="#PythonExecutor-346"><span class="linenos">346</span></a> <span class="p">)</span> +</span><span id="PythonExecutor-347"><a href="#PythonExecutor-347"><span class="linenos">347</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">({</span><span class="n">step</span><span class="o">.</span><span class="n">name</span><span class="p">:</span> <span class="n">output</span><span class="p">})</span> +</span><span id="PythonExecutor-348"><a href="#PythonExecutor-348"><span class="linenos">348</span></a> +</span><span id="PythonExecutor-349"><a href="#PythonExecutor-349"><span class="linenos">349</span></a> <span class="k">def</span> <span class="nf">set_operation</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">step</span><span class="p">,</span> <span class="n">context</span><span class="p">):</span> +</span><span id="PythonExecutor-350"><a href="#PythonExecutor-350"><span class="linenos">350</span></a> <span class="n">left</span> <span class="o">=</span> <span class="n">context</span><span class="o">.</span><span class="n">tables</span><span class="p">[</span><span class="n">step</span><span class="o">.</span><span class="n">left</span><span class="p">]</span> +</span><span id="PythonExecutor-351"><a href="#PythonExecutor-351"><span class="linenos">351</span></a> <span class="n">right</span> <span class="o">=</span> <span class="n">context</span><span class="o">.</span><span class="n">tables</span><span class="p">[</span><span class="n">step</span><span class="o">.</span><span class="n">right</span><span class="p">]</span> +</span><span id="PythonExecutor-352"><a href="#PythonExecutor-352"><span class="linenos">352</span></a> +</span><span id="PythonExecutor-353"><a href="#PythonExecutor-353"><span class="linenos">353</span></a> <span class="n">sink</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">table</span><span class="p">(</span><span class="n">left</span><span class="o">.</span><span class="n">columns</span><span class="p">)</span> +</span><span id="PythonExecutor-354"><a href="#PythonExecutor-354"><span class="linenos">354</span></a> +</span><span id="PythonExecutor-355"><a href="#PythonExecutor-355"><span class="linenos">355</span></a> <span class="k">if</span> <span class="nb">issubclass</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">op</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Intersect</span><span class="p">):</span> +</span><span id="PythonExecutor-356"><a href="#PythonExecutor-356"><span class="linenos">356</span></a> <span class="n">sink</span><span class="o">.</span><span class="n">rows</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="nb">set</span><span class="p">(</span><span class="n">left</span><span class="o">.</span><span class="n">rows</span><span class="p">)</span><span class="o">.</span><span class="n">intersection</span><span class="p">(</span><span class="nb">set</span><span class="p">(</span><span class="n">right</span><span class="o">.</span><span class="n">rows</span><span class="p">)))</span> +</span><span id="PythonExecutor-357"><a href="#PythonExecutor-357"><span class="linenos">357</span></a> <span class="k">elif</span> <span class="nb">issubclass</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">op</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Except</span><span class="p">):</span> +</span><span id="PythonExecutor-358"><a href="#PythonExecutor-358"><span class="linenos">358</span></a> <span class="n">sink</span><span class="o">.</span><span class="n">rows</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="nb">set</span><span class="p">(</span><span class="n">left</span><span class="o">.</span><span class="n">rows</span><span class="p">)</span><span class="o">.</span><span class="n">difference</span><span class="p">(</span><span class="nb">set</span><span class="p">(</span><span class="n">right</span><span class="o">.</span><span class="n">rows</span><span class="p">)))</span> +</span><span id="PythonExecutor-359"><a href="#PythonExecutor-359"><span class="linenos">359</span></a> <span class="k">elif</span> <span class="nb">issubclass</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">op</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Union</span><span class="p">)</span> <span class="ow">and</span> <span class="n">step</span><span class="o">.</span><span class="n">distinct</span><span class="p">:</span> +</span><span id="PythonExecutor-360"><a href="#PythonExecutor-360"><span class="linenos">360</span></a> <span class="n">sink</span><span class="o">.</span><span class="n">rows</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="nb">set</span><span class="p">(</span><span class="n">left</span><span class="o">.</span><span class="n">rows</span><span class="p">)</span><span class="o">.</span><span class="n">union</span><span class="p">(</span><span class="nb">set</span><span class="p">(</span><span class="n">right</span><span class="o">.</span><span class="n">rows</span><span class="p">)))</span> +</span><span id="PythonExecutor-361"><a href="#PythonExecutor-361"><span class="linenos">361</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="PythonExecutor-362"><a href="#PythonExecutor-362"><span class="linenos">362</span></a> <span class="n">sink</span><span class="o">.</span><span class="n">rows</span> <span class="o">=</span> <span class="n">left</span><span class="o">.</span><span class="n">rows</span> <span class="o">+</span> <span class="n">right</span><span class="o">.</span><span class="n">rows</span> +</span><span id="PythonExecutor-363"><a href="#PythonExecutor-363"><span class="linenos">363</span></a> +</span><span id="PythonExecutor-364"><a href="#PythonExecutor-364"><span class="linenos">364</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">({</span><span class="n">step</span><span class="o">.</span><span class="n">name</span><span class="p">:</span> <span class="n">sink</span><span class="p">})</span> +</span></pre></div> + + + + + <div id="PythonExecutor.__init__" class="classattr"> + <input id="PythonExecutor.__init__-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr function"> + + <span class="name">PythonExecutor</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">env</span><span class="o">=</span><span class="kc">None</span>, </span><span class="param"><span class="n">tables</span><span class="o">=</span><span class="kc">None</span></span>)</span> + + <label class="view-source-button" for="PythonExecutor.__init__-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#PythonExecutor.__init__"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="PythonExecutor.__init__-17"><a href="#PythonExecutor.__init__-17"><span class="linenos">17</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">env</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">tables</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span> +</span><span id="PythonExecutor.__init__-18"><a href="#PythonExecutor.__init__-18"><span class="linenos">18</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">generator</span> <span class="o">=</span> <span class="n">Python</span><span class="p">()</span><span class="o">.</span><span class="n">generator</span><span class="p">(</span><span class="n">identify</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span> <span class="n">comments</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span> +</span><span id="PythonExecutor.__init__-19"><a href="#PythonExecutor.__init__-19"><span class="linenos">19</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">env</span> <span class="o">=</span> <span class="p">{</span><span class="o">**</span><span class="n">ENV</span><span class="p">,</span> <span class="o">**</span><span class="p">(</span><span class="n">env</span> <span class="ow">or</span> <span class="p">{})}</span> +</span><span id="PythonExecutor.__init__-20"><a href="#PythonExecutor.__init__-20"><span class="linenos">20</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">tables</span> <span class="o">=</span> <span class="n">tables</span> <span class="ow">or</span> <span class="p">{}</span> +</span></pre></div> + + + + + </div> + <div id="PythonExecutor.execute" class="classattr"> + <input id="PythonExecutor.execute-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr function"> + + <span class="def">def</span> + <span class="name">execute</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">plan</span></span><span class="return-annotation">):</span></span> + + <label class="view-source-button" for="PythonExecutor.execute-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#PythonExecutor.execute"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="PythonExecutor.execute-22"><a href="#PythonExecutor.execute-22"><span class="linenos">22</span></a> <span class="k">def</span> <span class="nf">execute</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">plan</span><span class="p">):</span> +</span><span id="PythonExecutor.execute-23"><a href="#PythonExecutor.execute-23"><span class="linenos">23</span></a> <span class="n">running</span> <span class="o">=</span> <span class="nb">set</span><span class="p">()</span> +</span><span id="PythonExecutor.execute-24"><a href="#PythonExecutor.execute-24"><span class="linenos">24</span></a> <span class="n">finished</span> <span class="o">=</span> <span class="nb">set</span><span class="p">()</span> +</span><span id="PythonExecutor.execute-25"><a href="#PythonExecutor.execute-25"><span class="linenos">25</span></a> <span class="n">queue</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">plan</span><span class="o">.</span><span class="n">leaves</span><span class="p">)</span> +</span><span id="PythonExecutor.execute-26"><a href="#PythonExecutor.execute-26"><span class="linenos">26</span></a> <span class="n">contexts</span> <span class="o">=</span> <span class="p">{}</span> +</span><span id="PythonExecutor.execute-27"><a href="#PythonExecutor.execute-27"><span class="linenos">27</span></a> +</span><span id="PythonExecutor.execute-28"><a href="#PythonExecutor.execute-28"><span class="linenos">28</span></a> <span class="k">while</span> <span class="n">queue</span><span class="p">:</span> +</span><span id="PythonExecutor.execute-29"><a href="#PythonExecutor.execute-29"><span class="linenos">29</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">queue</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span> +</span><span id="PythonExecutor.execute-30"><a href="#PythonExecutor.execute-30"><span class="linenos">30</span></a> <span class="k">try</span><span class="p">:</span> +</span><span id="PythonExecutor.execute-31"><a href="#PythonExecutor.execute-31"><span class="linenos">31</span></a> <span class="n">context</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">(</span> +</span><span id="PythonExecutor.execute-32"><a href="#PythonExecutor.execute-32"><span class="linenos">32</span></a> <span class="p">{</span> +</span><span id="PythonExecutor.execute-33"><a href="#PythonExecutor.execute-33"><span class="linenos">33</span></a> <span class="n">name</span><span class="p">:</span> <span class="n">table</span> +</span><span id="PythonExecutor.execute-34"><a href="#PythonExecutor.execute-34"><span class="linenos">34</span></a> <span class="k">for</span> <span class="n">dep</span> <span class="ow">in</span> <span class="n">node</span><span class="o">.</span><span class="n">dependencies</span> +</span><span id="PythonExecutor.execute-35"><a href="#PythonExecutor.execute-35"><span class="linenos">35</span></a> <span class="k">for</span> <span class="n">name</span><span class="p">,</span> <span class="n">table</span> <span class="ow">in</span> <span class="n">contexts</span><span class="p">[</span><span class="n">dep</span><span class="p">]</span><span class="o">.</span><span class="n">tables</span><span class="o">.</span><span class="n">items</span><span class="p">()</span> +</span><span id="PythonExecutor.execute-36"><a href="#PythonExecutor.execute-36"><span class="linenos">36</span></a> <span class="p">}</span> +</span><span id="PythonExecutor.execute-37"><a href="#PythonExecutor.execute-37"><span class="linenos">37</span></a> <span class="p">)</span> +</span><span id="PythonExecutor.execute-38"><a href="#PythonExecutor.execute-38"><span class="linenos">38</span></a> <span class="n">running</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> +</span><span id="PythonExecutor.execute-39"><a href="#PythonExecutor.execute-39"><span class="linenos">39</span></a> +</span><span id="PythonExecutor.execute-40"><a href="#PythonExecutor.execute-40"><span class="linenos">40</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">planner</span><span class="o">.</span><span class="n">Scan</span><span class="p">):</span> +</span><span id="PythonExecutor.execute-41"><a href="#PythonExecutor.execute-41"><span class="linenos">41</span></a> <span class="n">contexts</span><span class="p">[</span><span class="n">node</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">scan</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">context</span><span class="p">)</span> +</span><span id="PythonExecutor.execute-42"><a href="#PythonExecutor.execute-42"><span class="linenos">42</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">planner</span><span class="o">.</span><span class="n">Aggregate</span><span class="p">):</span> +</span><span id="PythonExecutor.execute-43"><a href="#PythonExecutor.execute-43"><span class="linenos">43</span></a> <span class="n">contexts</span><span class="p">[</span><span class="n">node</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">aggregate</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">context</span><span class="p">)</span> +</span><span id="PythonExecutor.execute-44"><a href="#PythonExecutor.execute-44"><span class="linenos">44</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">planner</span><span class="o">.</span><span class="n">Join</span><span class="p">):</span> +</span><span id="PythonExecutor.execute-45"><a href="#PythonExecutor.execute-45"><span class="linenos">45</span></a> <span class="n">contexts</span><span class="p">[</span><span class="n">node</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">context</span><span class="p">)</span> +</span><span id="PythonExecutor.execute-46"><a href="#PythonExecutor.execute-46"><span class="linenos">46</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">planner</span><span class="o">.</span><span class="n">Sort</span><span class="p">):</span> +</span><span id="PythonExecutor.execute-47"><a href="#PythonExecutor.execute-47"><span class="linenos">47</span></a> <span class="n">contexts</span><span class="p">[</span><span class="n">node</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">sort</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">context</span><span class="p">)</span> +</span><span id="PythonExecutor.execute-48"><a href="#PythonExecutor.execute-48"><span class="linenos">48</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">planner</span><span class="o">.</span><span class="n">SetOperation</span><span class="p">):</span> +</span><span id="PythonExecutor.execute-49"><a href="#PythonExecutor.execute-49"><span class="linenos">49</span></a> <span class="n">contexts</span><span class="p">[</span><span class="n">node</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">set_operation</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">context</span><span class="p">)</span> +</span><span id="PythonExecutor.execute-50"><a href="#PythonExecutor.execute-50"><span class="linenos">50</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="PythonExecutor.execute-51"><a href="#PythonExecutor.execute-51"><span class="linenos">51</span></a> <span class="k">raise</span> <span class="ne">NotImplementedError</span> +</span><span id="PythonExecutor.execute-52"><a href="#PythonExecutor.execute-52"><span class="linenos">52</span></a> +</span><span id="PythonExecutor.execute-53"><a href="#PythonExecutor.execute-53"><span class="linenos">53</span></a> <span class="n">running</span><span class="o">.</span><span class="n">remove</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> +</span><span id="PythonExecutor.execute-54"><a href="#PythonExecutor.execute-54"><span class="linenos">54</span></a> <span class="n">finished</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">node</span><span class="p">)</span> +</span><span id="PythonExecutor.execute-55"><a href="#PythonExecutor.execute-55"><span class="linenos">55</span></a> +</span><span id="PythonExecutor.execute-56"><a href="#PythonExecutor.execute-56"><span class="linenos">56</span></a> <span class="k">for</span> <span class="n">dep</span> <span class="ow">in</span> <span class="n">node</span><span class="o">.</span><span class="n">dependents</span><span class="p">:</span> +</span><span id="PythonExecutor.execute-57"><a href="#PythonExecutor.execute-57"><span class="linenos">57</span></a> <span class="k">if</span> <span class="n">dep</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">running</span> <span class="ow">and</span> <span class="nb">all</span><span class="p">(</span><span class="n">d</span> <span class="ow">in</span> <span class="n">contexts</span> <span class="k">for</span> <span class="n">d</span> <span class="ow">in</span> <span class="n">dep</span><span class="o">.</span><span class="n">dependencies</span><span class="p">):</span> +</span><span id="PythonExecutor.execute-58"><a href="#PythonExecutor.execute-58"><span class="linenos">58</span></a> <span class="n">queue</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">dep</span><span class="p">)</span> +</span><span id="PythonExecutor.execute-59"><a href="#PythonExecutor.execute-59"><span class="linenos">59</span></a> +</span><span id="PythonExecutor.execute-60"><a href="#PythonExecutor.execute-60"><span class="linenos">60</span></a> <span class="k">for</span> <span class="n">dep</span> <span class="ow">in</span> <span class="n">node</span><span class="o">.</span><span class="n">dependencies</span><span class="p">:</span> +</span><span id="PythonExecutor.execute-61"><a href="#PythonExecutor.execute-61"><span class="linenos">61</span></a> <span class="k">if</span> <span class="nb">all</span><span class="p">(</span><span class="n">d</span> <span class="ow">in</span> <span class="n">finished</span> <span class="k">for</span> <span class="n">d</span> <span class="ow">in</span> <span class="n">dep</span><span class="o">.</span><span class="n">dependents</span><span class="p">):</span> +</span><span id="PythonExecutor.execute-62"><a href="#PythonExecutor.execute-62"><span class="linenos">62</span></a> <span class="n">contexts</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="n">dep</span><span class="p">)</span> +</span><span id="PythonExecutor.execute-63"><a href="#PythonExecutor.execute-63"><span class="linenos">63</span></a> <span class="k">except</span> <span class="ne">Exception</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span> +</span><span id="PythonExecutor.execute-64"><a href="#PythonExecutor.execute-64"><span class="linenos">64</span></a> <span class="k">raise</span> <span class="n">ExecuteError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Step '</span><span class="si">{</span><span class="n">node</span><span class="o">.</span><span class="n">id</span><span class="si">}</span><span class="s2">' failed: </span><span class="si">{</span><span class="n">e</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> <span class="kn">from</span> <span class="nn">e</span> +</span><span id="PythonExecutor.execute-65"><a href="#PythonExecutor.execute-65"><span class="linenos">65</span></a> +</span><span id="PythonExecutor.execute-66"><a href="#PythonExecutor.execute-66"><span class="linenos">66</span></a> <span class="n">root</span> <span class="o">=</span> <span class="n">plan</span><span class="o">.</span><span class="n">root</span> +</span><span id="PythonExecutor.execute-67"><a href="#PythonExecutor.execute-67"><span class="linenos">67</span></a> <span class="k">return</span> <span class="n">contexts</span><span class="p">[</span><span class="n">root</span><span class="p">]</span><span class="o">.</span><span class="n">tables</span><span class="p">[</span><span class="n">root</span><span class="o">.</span><span class="n">name</span><span class="p">]</span> +</span></pre></div> + + + + + </div> + <div id="PythonExecutor.generate" class="classattr"> + <input id="PythonExecutor.generate-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr function"> + + <span class="def">def</span> + <span class="name">generate</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">expression</span></span><span class="return-annotation">):</span></span> + + <label class="view-source-button" for="PythonExecutor.generate-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#PythonExecutor.generate"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="PythonExecutor.generate-69"><a href="#PythonExecutor.generate-69"><span class="linenos">69</span></a> <span class="k">def</span> <span class="nf">generate</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">expression</span><span class="p">):</span> +</span><span id="PythonExecutor.generate-70"><a href="#PythonExecutor.generate-70"><span class="linenos">70</span></a><span class="w"> </span><span class="sd">"""Convert a SQL expression into literal Python code and compile it into bytecode."""</span> +</span><span id="PythonExecutor.generate-71"><a href="#PythonExecutor.generate-71"><span class="linenos">71</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">expression</span><span class="p">:</span> +</span><span id="PythonExecutor.generate-72"><a href="#PythonExecutor.generate-72"><span class="linenos">72</span></a> <span class="k">return</span> <span class="kc">None</span> +</span><span id="PythonExecutor.generate-73"><a href="#PythonExecutor.generate-73"><span class="linenos">73</span></a> +</span><span id="PythonExecutor.generate-74"><a href="#PythonExecutor.generate-74"><span class="linenos">74</span></a> <span class="n">sql</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generator</span><span class="o">.</span><span class="n">generate</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span> +</span><span id="PythonExecutor.generate-75"><a href="#PythonExecutor.generate-75"><span class="linenos">75</span></a> <span class="k">return</span> <span class="nb">compile</span><span class="p">(</span><span class="n">sql</span><span class="p">,</span> <span class="n">sql</span><span class="p">,</span> <span class="s2">"eval"</span><span class="p">,</span> <span class="n">optimize</span><span class="o">=</span><span class="mi">2</span><span class="p">)</span> +</span></pre></div> + + + <div class="docstring"><p>Convert a SQL expression into literal Python code and compile it into bytecode.</p> +</div> + + + </div> + <div id="PythonExecutor.generate_tuple" class="classattr"> + <input id="PythonExecutor.generate_tuple-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr function"> + + <span class="def">def</span> + <span class="name">generate_tuple</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">expressions</span></span><span class="return-annotation">):</span></span> + + <label class="view-source-button" for="PythonExecutor.generate_tuple-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#PythonExecutor.generate_tuple"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="PythonExecutor.generate_tuple-77"><a href="#PythonExecutor.generate_tuple-77"><span class="linenos">77</span></a> <span class="k">def</span> <span class="nf">generate_tuple</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">expressions</span><span class="p">):</span> +</span><span id="PythonExecutor.generate_tuple-78"><a href="#PythonExecutor.generate_tuple-78"><span class="linenos">78</span></a><span class="w"> </span><span class="sd">"""Convert an array of SQL expressions into tuple of Python byte code."""</span> +</span><span id="PythonExecutor.generate_tuple-79"><a href="#PythonExecutor.generate_tuple-79"><span class="linenos">79</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">expressions</span><span class="p">:</span> +</span><span id="PythonExecutor.generate_tuple-80"><a href="#PythonExecutor.generate_tuple-80"><span class="linenos">80</span></a> <span class="k">return</span> <span class="nb">tuple</span><span class="p">()</span> +</span><span id="PythonExecutor.generate_tuple-81"><a href="#PythonExecutor.generate_tuple-81"><span class="linenos">81</span></a> <span class="k">return</span> <span class="nb">tuple</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">generate</span><span class="p">(</span><span class="n">expression</span><span class="p">)</span> <span class="k">for</span> <span class="n">expression</span> <span class="ow">in</span> <span class="n">expressions</span><span class="p">)</span> +</span></pre></div> + + + <div class="docstring"><p>Convert an array of SQL expressions into tuple of Python byte code.</p> +</div> + + + </div> + <div id="PythonExecutor.context" class="classattr"> + <input id="PythonExecutor.context-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr function"> + + <span class="def">def</span> + <span class="name">context</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">tables</span></span><span class="return-annotation">):</span></span> + + <label class="view-source-button" for="PythonExecutor.context-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#PythonExecutor.context"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="PythonExecutor.context-83"><a href="#PythonExecutor.context-83"><span class="linenos">83</span></a> <span class="k">def</span> <span class="nf">context</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">tables</span><span class="p">):</span> +</span><span id="PythonExecutor.context-84"><a href="#PythonExecutor.context-84"><span class="linenos">84</span></a> <span class="k">return</span> <span class="n">Context</span><span class="p">(</span><span class="n">tables</span><span class="p">,</span> <span class="n">env</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">env</span><span class="p">)</span> +</span></pre></div> + + + + + </div> + <div id="PythonExecutor.table" class="classattr"> + <input id="PythonExecutor.table-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr function"> + + <span class="def">def</span> + <span class="name">table</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">expressions</span></span><span class="return-annotation">):</span></span> + + <label class="view-source-button" for="PythonExecutor.table-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#PythonExecutor.table"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="PythonExecutor.table-86"><a href="#PythonExecutor.table-86"><span class="linenos">86</span></a> <span class="k">def</span> <span class="nf">table</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">expressions</span><span class="p">):</span> +</span><span id="PythonExecutor.table-87"><a href="#PythonExecutor.table-87"><span class="linenos">87</span></a> <span class="k">return</span> <span class="n">Table</span><span class="p">(</span> +</span><span id="PythonExecutor.table-88"><a href="#PythonExecutor.table-88"><span class="linenos">88</span></a> <span class="n">expression</span><span class="o">.</span><span class="n">alias_or_name</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">)</span> <span class="k">else</span> <span class="n">expression</span> +</span><span id="PythonExecutor.table-89"><a href="#PythonExecutor.table-89"><span class="linenos">89</span></a> <span class="k">for</span> <span class="n">expression</span> <span class="ow">in</span> <span class="n">expressions</span> +</span><span id="PythonExecutor.table-90"><a href="#PythonExecutor.table-90"><span class="linenos">90</span></a> <span class="p">)</span> +</span></pre></div> + + + + + </div> + <div id="PythonExecutor.scan" class="classattr"> + <input id="PythonExecutor.scan-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr function"> + + <span class="def">def</span> + <span class="name">scan</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">step</span>, </span><span class="param"><span class="n">context</span></span><span class="return-annotation">):</span></span> + + <label class="view-source-button" for="PythonExecutor.scan-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#PythonExecutor.scan"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="PythonExecutor.scan-92"><a href="#PythonExecutor.scan-92"><span class="linenos"> 92</span></a> <span class="k">def</span> <span class="nf">scan</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">step</span><span class="p">,</span> <span class="n">context</span><span class="p">):</span> +</span><span id="PythonExecutor.scan-93"><a href="#PythonExecutor.scan-93"><span class="linenos"> 93</span></a> <span class="n">source</span> <span class="o">=</span> <span class="n">step</span><span class="o">.</span><span class="n">source</span> +</span><span id="PythonExecutor.scan-94"><a href="#PythonExecutor.scan-94"><span class="linenos"> 94</span></a> +</span><span id="PythonExecutor.scan-95"><a href="#PythonExecutor.scan-95"><span class="linenos"> 95</span></a> <span class="k">if</span> <span class="n">source</span> <span class="ow">and</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">Expression</span><span class="p">):</span> +</span><span id="PythonExecutor.scan-96"><a href="#PythonExecutor.scan-96"><span class="linenos"> 96</span></a> <span class="n">source</span> <span class="o">=</span> <span class="n">source</span><span class="o">.</span><span class="n">name</span> <span class="ow">or</span> <span class="n">source</span><span class="o">.</span><span class="n">alias</span> +</span><span id="PythonExecutor.scan-97"><a href="#PythonExecutor.scan-97"><span class="linenos"> 97</span></a> +</span><span id="PythonExecutor.scan-98"><a href="#PythonExecutor.scan-98"><span class="linenos"> 98</span></a> <span class="n">condition</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generate</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">condition</span><span class="p">)</span> +</span><span id="PythonExecutor.scan-99"><a href="#PythonExecutor.scan-99"><span class="linenos"> 99</span></a> <span class="n">projections</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generate_tuple</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">projections</span><span class="p">)</span> +</span><span id="PythonExecutor.scan-100"><a href="#PythonExecutor.scan-100"><span class="linenos">100</span></a> +</span><span id="PythonExecutor.scan-101"><a href="#PythonExecutor.scan-101"><span class="linenos">101</span></a> <span class="k">if</span> <span class="n">source</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> +</span><span id="PythonExecutor.scan-102"><a href="#PythonExecutor.scan-102"><span class="linenos">102</span></a> <span class="n">context</span><span class="p">,</span> <span class="n">table_iter</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">static</span><span class="p">()</span> +</span><span id="PythonExecutor.scan-103"><a href="#PythonExecutor.scan-103"><span class="linenos">103</span></a> <span class="k">elif</span> <span class="n">source</span> <span class="ow">in</span> <span class="n">context</span><span class="p">:</span> +</span><span id="PythonExecutor.scan-104"><a href="#PythonExecutor.scan-104"><span class="linenos">104</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">projections</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">condition</span><span class="p">:</span> +</span><span id="PythonExecutor.scan-105"><a href="#PythonExecutor.scan-105"><span class="linenos">105</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">({</span><span class="n">step</span><span class="o">.</span><span class="n">name</span><span class="p">:</span> <span class="n">context</span><span class="o">.</span><span class="n">tables</span><span class="p">[</span><span class="n">source</span><span class="p">]})</span> +</span><span id="PythonExecutor.scan-106"><a href="#PythonExecutor.scan-106"><span class="linenos">106</span></a> <span class="n">table_iter</span> <span class="o">=</span> <span class="n">context</span><span class="o">.</span><span class="n">table_iter</span><span class="p">(</span><span class="n">source</span><span class="p">)</span> +</span><span id="PythonExecutor.scan-107"><a href="#PythonExecutor.scan-107"><span class="linenos">107</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">step</span><span class="o">.</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 class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">source</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">ReadCSV</span><span class="p">):</span> +</span><span id="PythonExecutor.scan-108"><a href="#PythonExecutor.scan-108"><span class="linenos">108</span></a> <span class="n">table_iter</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">scan_csv</span><span class="p">(</span><span class="n">step</span><span class="p">)</span> +</span><span id="PythonExecutor.scan-109"><a href="#PythonExecutor.scan-109"><span class="linenos">109</span></a> <span class="n">context</span> <span class="o">=</span> <span class="nb">next</span><span class="p">(</span><span class="n">table_iter</span><span class="p">)</span> +</span><span id="PythonExecutor.scan-110"><a href="#PythonExecutor.scan-110"><span class="linenos">110</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="PythonExecutor.scan-111"><a href="#PythonExecutor.scan-111"><span class="linenos">111</span></a> <span class="n">context</span><span class="p">,</span> <span class="n">table_iter</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">scan_table</span><span class="p">(</span><span class="n">step</span><span class="p">)</span> +</span><span id="PythonExecutor.scan-112"><a href="#PythonExecutor.scan-112"><span class="linenos">112</span></a> +</span><span id="PythonExecutor.scan-113"><a href="#PythonExecutor.scan-113"><span class="linenos">113</span></a> <span class="k">if</span> <span class="n">projections</span><span class="p">:</span> +</span><span id="PythonExecutor.scan-114"><a href="#PythonExecutor.scan-114"><span class="linenos">114</span></a> <span class="n">sink</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">table</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">projections</span><span class="p">)</span> +</span><span id="PythonExecutor.scan-115"><a href="#PythonExecutor.scan-115"><span class="linenos">115</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="PythonExecutor.scan-116"><a href="#PythonExecutor.scan-116"><span class="linenos">116</span></a> <span class="n">sink</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">table</span><span class="p">(</span><span class="n">context</span><span class="o">.</span><span class="n">columns</span><span class="p">)</span> +</span><span id="PythonExecutor.scan-117"><a href="#PythonExecutor.scan-117"><span class="linenos">117</span></a> +</span><span id="PythonExecutor.scan-118"><a href="#PythonExecutor.scan-118"><span class="linenos">118</span></a> <span class="k">for</span> <span class="n">reader</span> <span class="ow">in</span> <span class="n">table_iter</span><span class="p">:</span> +</span><span id="PythonExecutor.scan-119"><a href="#PythonExecutor.scan-119"><span class="linenos">119</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">sink</span><span class="p">)</span> <span class="o">>=</span> <span class="n">step</span><span class="o">.</span><span class="n">limit</span><span class="p">:</span> +</span><span id="PythonExecutor.scan-120"><a href="#PythonExecutor.scan-120"><span class="linenos">120</span></a> <span class="k">break</span> +</span><span id="PythonExecutor.scan-121"><a href="#PythonExecutor.scan-121"><span class="linenos">121</span></a> +</span><span id="PythonExecutor.scan-122"><a href="#PythonExecutor.scan-122"><span class="linenos">122</span></a> <span class="k">if</span> <span class="n">condition</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">context</span><span class="o">.</span><span class="n">eval</span><span class="p">(</span><span class="n">condition</span><span class="p">):</span> +</span><span id="PythonExecutor.scan-123"><a href="#PythonExecutor.scan-123"><span class="linenos">123</span></a> <span class="k">continue</span> +</span><span id="PythonExecutor.scan-124"><a href="#PythonExecutor.scan-124"><span class="linenos">124</span></a> +</span><span id="PythonExecutor.scan-125"><a href="#PythonExecutor.scan-125"><span class="linenos">125</span></a> <span class="k">if</span> <span class="n">projections</span><span class="p">:</span> +</span><span id="PythonExecutor.scan-126"><a href="#PythonExecutor.scan-126"><span class="linenos">126</span></a> <span class="n">sink</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">context</span><span class="o">.</span><span class="n">eval_tuple</span><span class="p">(</span><span class="n">projections</span><span class="p">))</span> +</span><span id="PythonExecutor.scan-127"><a href="#PythonExecutor.scan-127"><span class="linenos">127</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="PythonExecutor.scan-128"><a href="#PythonExecutor.scan-128"><span class="linenos">128</span></a> <span class="n">sink</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">reader</span><span class="o">.</span><span class="n">row</span><span class="p">)</span> +</span><span id="PythonExecutor.scan-129"><a href="#PythonExecutor.scan-129"><span class="linenos">129</span></a> +</span><span id="PythonExecutor.scan-130"><a href="#PythonExecutor.scan-130"><span class="linenos">130</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">({</span><span class="n">step</span><span class="o">.</span><span class="n">name</span><span class="p">:</span> <span class="n">sink</span><span class="p">})</span> +</span></pre></div> + + + + + </div> + <div id="PythonExecutor.static" class="classattr"> + <input id="PythonExecutor.static-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr function"> + + <span class="def">def</span> + <span class="name">static</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span></span><span class="return-annotation">):</span></span> + + <label class="view-source-button" for="PythonExecutor.static-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#PythonExecutor.static"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="PythonExecutor.static-132"><a href="#PythonExecutor.static-132"><span class="linenos">132</span></a> <span class="k">def</span> <span class="nf">static</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> +</span><span id="PythonExecutor.static-133"><a href="#PythonExecutor.static-133"><span class="linenos">133</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">({}),</span> <span class="p">[</span><span class="n">RowReader</span><span class="p">(())]</span> +</span></pre></div> + + + + + </div> + <div id="PythonExecutor.scan_table" class="classattr"> + <input id="PythonExecutor.scan_table-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr function"> + + <span class="def">def</span> + <span class="name">scan_table</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">step</span></span><span class="return-annotation">):</span></span> + + <label class="view-source-button" for="PythonExecutor.scan_table-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#PythonExecutor.scan_table"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="PythonExecutor.scan_table-135"><a href="#PythonExecutor.scan_table-135"><span class="linenos">135</span></a> <span class="k">def</span> <span class="nf">scan_table</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">step</span><span class="p">):</span> +</span><span id="PythonExecutor.scan_table-136"><a href="#PythonExecutor.scan_table-136"><span class="linenos">136</span></a> <span class="n">table</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">tables</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">source</span><span class="p">)</span> +</span><span id="PythonExecutor.scan_table-137"><a href="#PythonExecutor.scan_table-137"><span class="linenos">137</span></a> <span class="n">context</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">({</span><span class="n">step</span><span class="o">.</span><span class="n">source</span><span class="o">.</span><span class="n">alias_or_name</span><span class="p">:</span> <span class="n">table</span><span class="p">})</span> +</span><span id="PythonExecutor.scan_table-138"><a href="#PythonExecutor.scan_table-138"><span class="linenos">138</span></a> <span class="k">return</span> <span class="n">context</span><span class="p">,</span> <span class="nb">iter</span><span class="p">(</span><span class="n">table</span><span class="p">)</span> +</span></pre></div> + + + + + </div> + <div id="PythonExecutor.scan_csv" class="classattr"> + <input id="PythonExecutor.scan_csv-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr function"> + + <span class="def">def</span> + <span class="name">scan_csv</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">step</span></span><span class="return-annotation">):</span></span> + + <label class="view-source-button" for="PythonExecutor.scan_csv-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#PythonExecutor.scan_csv"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="PythonExecutor.scan_csv-140"><a href="#PythonExecutor.scan_csv-140"><span class="linenos">140</span></a> <span class="k">def</span> <span class="nf">scan_csv</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">step</span><span class="p">):</span> +</span><span id="PythonExecutor.scan_csv-141"><a href="#PythonExecutor.scan_csv-141"><span class="linenos">141</span></a> <span class="n">alias</span> <span class="o">=</span> <span class="n">step</span><span class="o">.</span><span class="n">source</span><span class="o">.</span><span class="n">alias</span> +</span><span id="PythonExecutor.scan_csv-142"><a href="#PythonExecutor.scan_csv-142"><span class="linenos">142</span></a> <span class="n">source</span> <span class="o">=</span> <span class="n">step</span><span class="o">.</span><span class="n">source</span><span class="o">.</span><span class="n">this</span> +</span><span id="PythonExecutor.scan_csv-143"><a href="#PythonExecutor.scan_csv-143"><span class="linenos">143</span></a> +</span><span id="PythonExecutor.scan_csv-144"><a href="#PythonExecutor.scan_csv-144"><span class="linenos">144</span></a> <span class="k">with</span> <span class="n">csv_reader</span><span class="p">(</span><span class="n">source</span><span class="p">)</span> <span class="k">as</span> <span class="n">reader</span><span class="p">:</span> +</span><span id="PythonExecutor.scan_csv-145"><a href="#PythonExecutor.scan_csv-145"><span class="linenos">145</span></a> <span class="n">columns</span> <span class="o">=</span> <span class="nb">next</span><span class="p">(</span><span class="n">reader</span><span class="p">)</span> +</span><span id="PythonExecutor.scan_csv-146"><a href="#PythonExecutor.scan_csv-146"><span class="linenos">146</span></a> <span class="n">table</span> <span class="o">=</span> <span class="n">Table</span><span class="p">(</span><span class="n">columns</span><span class="p">)</span> +</span><span id="PythonExecutor.scan_csv-147"><a href="#PythonExecutor.scan_csv-147"><span class="linenos">147</span></a> <span class="n">context</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">({</span><span class="n">alias</span><span class="p">:</span> <span class="n">table</span><span class="p">})</span> +</span><span id="PythonExecutor.scan_csv-148"><a href="#PythonExecutor.scan_csv-148"><span class="linenos">148</span></a> <span class="k">yield</span> <span class="n">context</span> +</span><span id="PythonExecutor.scan_csv-149"><a href="#PythonExecutor.scan_csv-149"><span class="linenos">149</span></a> <span class="n">types</span> <span class="o">=</span> <span class="p">[]</span> +</span><span id="PythonExecutor.scan_csv-150"><a href="#PythonExecutor.scan_csv-150"><span class="linenos">150</span></a> +</span><span id="PythonExecutor.scan_csv-151"><a href="#PythonExecutor.scan_csv-151"><span class="linenos">151</span></a> <span class="k">for</span> <span class="n">row</span> <span class="ow">in</span> <span class="n">reader</span><span class="p">:</span> +</span><span id="PythonExecutor.scan_csv-152"><a href="#PythonExecutor.scan_csv-152"><span class="linenos">152</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">types</span><span class="p">:</span> +</span><span id="PythonExecutor.scan_csv-153"><a href="#PythonExecutor.scan_csv-153"><span class="linenos">153</span></a> <span class="k">for</span> <span class="n">v</span> <span class="ow">in</span> <span class="n">row</span><span class="p">:</span> +</span><span id="PythonExecutor.scan_csv-154"><a href="#PythonExecutor.scan_csv-154"><span class="linenos">154</span></a> <span class="k">try</span><span class="p">:</span> +</span><span id="PythonExecutor.scan_csv-155"><a href="#PythonExecutor.scan_csv-155"><span class="linenos">155</span></a> <span class="n">types</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="nb">type</span><span class="p">(</span><span class="n">ast</span><span class="o">.</span><span class="n">literal_eval</span><span class="p">(</span><span class="n">v</span><span class="p">)))</span> +</span><span id="PythonExecutor.scan_csv-156"><a href="#PythonExecutor.scan_csv-156"><span class="linenos">156</span></a> <span class="k">except</span> <span class="p">(</span><span class="ne">ValueError</span><span class="p">,</span> <span class="ne">SyntaxError</span><span class="p">):</span> +</span><span id="PythonExecutor.scan_csv-157"><a href="#PythonExecutor.scan_csv-157"><span class="linenos">157</span></a> <span class="n">types</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="nb">str</span><span class="p">)</span> +</span><span id="PythonExecutor.scan_csv-158"><a href="#PythonExecutor.scan_csv-158"><span class="linenos">158</span></a> <span class="n">context</span><span class="o">.</span><span class="n">set_row</span><span class="p">(</span><span class="nb">tuple</span><span class="p">(</span><span class="n">t</span><span class="p">(</span><span class="n">v</span><span class="p">)</span> <span class="k">for</span> <span class="n">t</span><span class="p">,</span> <span class="n">v</span> <span class="ow">in</span> <span class="nb">zip</span><span class="p">(</span><span class="n">types</span><span class="p">,</span> <span class="n">row</span><span class="p">)))</span> +</span><span id="PythonExecutor.scan_csv-159"><a href="#PythonExecutor.scan_csv-159"><span class="linenos">159</span></a> <span class="k">yield</span> <span class="n">context</span><span class="o">.</span><span class="n">table</span><span class="o">.</span><span class="n">reader</span> +</span></pre></div> + + + + + </div> + <div id="PythonExecutor.join" class="classattr"> + <input id="PythonExecutor.join-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr function"> + + <span class="def">def</span> + <span class="name">join</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">step</span>, </span><span class="param"><span class="n">context</span></span><span class="return-annotation">):</span></span> + + <label class="view-source-button" for="PythonExecutor.join-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#PythonExecutor.join"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="PythonExecutor.join-161"><a href="#PythonExecutor.join-161"><span class="linenos">161</span></a> <span class="k">def</span> <span class="nf">join</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">step</span><span class="p">,</span> <span class="n">context</span><span class="p">):</span> +</span><span id="PythonExecutor.join-162"><a href="#PythonExecutor.join-162"><span class="linenos">162</span></a> <span class="n">source</span> <span class="o">=</span> <span class="n">step</span><span class="o">.</span><span class="n">name</span> +</span><span id="PythonExecutor.join-163"><a href="#PythonExecutor.join-163"><span class="linenos">163</span></a> +</span><span id="PythonExecutor.join-164"><a href="#PythonExecutor.join-164"><span class="linenos">164</span></a> <span class="n">source_table</span> <span class="o">=</span> <span class="n">context</span><span class="o">.</span><span class="n">tables</span><span class="p">[</span><span class="n">source</span><span class="p">]</span> +</span><span id="PythonExecutor.join-165"><a href="#PythonExecutor.join-165"><span class="linenos">165</span></a> <span class="n">source_context</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">({</span><span class="n">source</span><span class="p">:</span> <span class="n">source_table</span><span class="p">})</span> +</span><span id="PythonExecutor.join-166"><a href="#PythonExecutor.join-166"><span class="linenos">166</span></a> <span class="n">column_ranges</span> <span class="o">=</span> <span class="p">{</span><span class="n">source</span><span class="p">:</span> <span class="nb">range</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="nb">len</span><span class="p">(</span><span class="n">source_table</span><span class="o">.</span><span class="n">columns</span><span class="p">))}</span> +</span><span id="PythonExecutor.join-167"><a href="#PythonExecutor.join-167"><span class="linenos">167</span></a> +</span><span id="PythonExecutor.join-168"><a href="#PythonExecutor.join-168"><span class="linenos">168</span></a> <span class="k">for</span> <span class="n">name</span><span class="p">,</span> <span class="n">join</span> <span class="ow">in</span> <span class="n">step</span><span class="o">.</span><span class="n">joins</span><span class="o">.</span><span class="n">items</span><span class="p">():</span> +</span><span id="PythonExecutor.join-169"><a href="#PythonExecutor.join-169"><span class="linenos">169</span></a> <span class="n">table</span> <span class="o">=</span> <span class="n">context</span><span class="o">.</span><span class="n">tables</span><span class="p">[</span><span class="n">name</span><span class="p">]</span> +</span><span id="PythonExecutor.join-170"><a href="#PythonExecutor.join-170"><span class="linenos">170</span></a> <span class="n">start</span> <span class="o">=</span> <span class="nb">max</span><span class="p">(</span><span class="n">r</span><span class="o">.</span><span class="n">stop</span> <span class="k">for</span> <span class="n">r</span> <span class="ow">in</span> <span class="n">column_ranges</span><span class="o">.</span><span class="n">values</span><span class="p">())</span> +</span><span id="PythonExecutor.join-171"><a href="#PythonExecutor.join-171"><span class="linenos">171</span></a> <span class="n">column_ranges</span><span class="p">[</span><span class="n">name</span><span class="p">]</span> <span class="o">=</span> <span class="nb">range</span><span class="p">(</span><span class="n">start</span><span class="p">,</span> <span class="nb">len</span><span class="p">(</span><span class="n">table</span><span class="o">.</span><span class="n">columns</span><span class="p">)</span> <span class="o">+</span> <span class="n">start</span><span class="p">)</span> +</span><span id="PythonExecutor.join-172"><a href="#PythonExecutor.join-172"><span class="linenos">172</span></a> <span class="n">join_context</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</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="PythonExecutor.join-173"><a href="#PythonExecutor.join-173"><span class="linenos">173</span></a> +</span><span id="PythonExecutor.join-174"><a href="#PythonExecutor.join-174"><span class="linenos">174</span></a> <span class="k">if</span> <span class="n">join</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"source_key"</span><span class="p">):</span> +</span><span id="PythonExecutor.join-175"><a href="#PythonExecutor.join-175"><span class="linenos">175</span></a> <span class="n">table</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">hash_join</span><span class="p">(</span><span class="n">join</span><span class="p">,</span> <span class="n">source_context</span><span class="p">,</span> <span class="n">join_context</span><span class="p">)</span> +</span><span id="PythonExecutor.join-176"><a href="#PythonExecutor.join-176"><span class="linenos">176</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="PythonExecutor.join-177"><a href="#PythonExecutor.join-177"><span class="linenos">177</span></a> <span class="n">table</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">nested_loop_join</span><span class="p">(</span><span class="n">join</span><span class="p">,</span> <span class="n">source_context</span><span class="p">,</span> <span class="n">join_context</span><span class="p">)</span> +</span><span id="PythonExecutor.join-178"><a href="#PythonExecutor.join-178"><span class="linenos">178</span></a> +</span><span id="PythonExecutor.join-179"><a href="#PythonExecutor.join-179"><span class="linenos">179</span></a> <span class="n">source_context</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">(</span> +</span><span id="PythonExecutor.join-180"><a href="#PythonExecutor.join-180"><span class="linenos">180</span></a> <span class="p">{</span> +</span><span id="PythonExecutor.join-181"><a href="#PythonExecutor.join-181"><span class="linenos">181</span></a> <span class="n">name</span><span class="p">:</span> <span class="n">Table</span><span class="p">(</span><span class="n">table</span><span class="o">.</span><span class="n">columns</span><span class="p">,</span> <span class="n">table</span><span class="o">.</span><span class="n">rows</span><span class="p">,</span> <span class="n">column_range</span><span class="p">)</span> +</span><span id="PythonExecutor.join-182"><a href="#PythonExecutor.join-182"><span class="linenos">182</span></a> <span class="k">for</span> <span class="n">name</span><span class="p">,</span> <span class="n">column_range</span> <span class="ow">in</span> <span class="n">column_ranges</span><span class="o">.</span><span class="n">items</span><span class="p">()</span> +</span><span id="PythonExecutor.join-183"><a href="#PythonExecutor.join-183"><span class="linenos">183</span></a> <span class="p">}</span> +</span><span id="PythonExecutor.join-184"><a href="#PythonExecutor.join-184"><span class="linenos">184</span></a> <span class="p">)</span> +</span><span id="PythonExecutor.join-185"><a href="#PythonExecutor.join-185"><span class="linenos">185</span></a> <span class="n">condition</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generate</span><span class="p">(</span><span class="n">join</span><span class="p">[</span><span class="s2">"condition"</span><span class="p">])</span> +</span><span id="PythonExecutor.join-186"><a href="#PythonExecutor.join-186"><span class="linenos">186</span></a> <span class="k">if</span> <span class="n">condition</span><span class="p">:</span> +</span><span id="PythonExecutor.join-187"><a href="#PythonExecutor.join-187"><span class="linenos">187</span></a> <span class="n">source_context</span><span class="o">.</span><span class="n">filter</span><span class="p">(</span><span class="n">condition</span><span class="p">)</span> +</span><span id="PythonExecutor.join-188"><a href="#PythonExecutor.join-188"><span class="linenos">188</span></a> +</span><span id="PythonExecutor.join-189"><a href="#PythonExecutor.join-189"><span class="linenos">189</span></a> <span class="n">condition</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generate</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">condition</span><span class="p">)</span> +</span><span id="PythonExecutor.join-190"><a href="#PythonExecutor.join-190"><span class="linenos">190</span></a> <span class="n">projections</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generate_tuple</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">projections</span><span class="p">)</span> +</span><span id="PythonExecutor.join-191"><a href="#PythonExecutor.join-191"><span class="linenos">191</span></a> +</span><span id="PythonExecutor.join-192"><a href="#PythonExecutor.join-192"><span class="linenos">192</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">condition</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">projections</span><span class="p">:</span> +</span><span id="PythonExecutor.join-193"><a href="#PythonExecutor.join-193"><span class="linenos">193</span></a> <span class="k">return</span> <span class="n">source_context</span> +</span><span id="PythonExecutor.join-194"><a href="#PythonExecutor.join-194"><span class="linenos">194</span></a> +</span><span id="PythonExecutor.join-195"><a href="#PythonExecutor.join-195"><span class="linenos">195</span></a> <span class="n">sink</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">table</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">projections</span> <span class="k">if</span> <span class="n">projections</span> <span class="k">else</span> <span class="n">source_context</span><span class="o">.</span><span class="n">columns</span><span class="p">)</span> +</span><span id="PythonExecutor.join-196"><a href="#PythonExecutor.join-196"><span class="linenos">196</span></a> +</span><span id="PythonExecutor.join-197"><a href="#PythonExecutor.join-197"><span class="linenos">197</span></a> <span class="k">for</span> <span class="n">reader</span><span class="p">,</span> <span class="n">ctx</span> <span class="ow">in</span> <span class="n">source_context</span><span class="p">:</span> +</span><span id="PythonExecutor.join-198"><a href="#PythonExecutor.join-198"><span class="linenos">198</span></a> <span class="k">if</span> <span class="n">condition</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">ctx</span><span class="o">.</span><span class="n">eval</span><span class="p">(</span><span class="n">condition</span><span class="p">):</span> +</span><span id="PythonExecutor.join-199"><a href="#PythonExecutor.join-199"><span class="linenos">199</span></a> <span class="k">continue</span> +</span><span id="PythonExecutor.join-200"><a href="#PythonExecutor.join-200"><span class="linenos">200</span></a> +</span><span id="PythonExecutor.join-201"><a href="#PythonExecutor.join-201"><span class="linenos">201</span></a> <span class="k">if</span> <span class="n">projections</span><span class="p">:</span> +</span><span id="PythonExecutor.join-202"><a href="#PythonExecutor.join-202"><span class="linenos">202</span></a> <span class="n">sink</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">ctx</span><span class="o">.</span><span class="n">eval_tuple</span><span class="p">(</span><span class="n">projections</span><span class="p">))</span> +</span><span id="PythonExecutor.join-203"><a href="#PythonExecutor.join-203"><span class="linenos">203</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="PythonExecutor.join-204"><a href="#PythonExecutor.join-204"><span class="linenos">204</span></a> <span class="n">sink</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">reader</span><span class="o">.</span><span class="n">row</span><span class="p">)</span> +</span><span id="PythonExecutor.join-205"><a href="#PythonExecutor.join-205"><span class="linenos">205</span></a> +</span><span id="PythonExecutor.join-206"><a href="#PythonExecutor.join-206"><span class="linenos">206</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">sink</span><span class="p">)</span> <span class="o">>=</span> <span class="n">step</span><span class="o">.</span><span class="n">limit</span><span class="p">:</span> +</span><span id="PythonExecutor.join-207"><a href="#PythonExecutor.join-207"><span class="linenos">207</span></a> <span class="k">break</span> +</span><span id="PythonExecutor.join-208"><a href="#PythonExecutor.join-208"><span class="linenos">208</span></a> +</span><span id="PythonExecutor.join-209"><a href="#PythonExecutor.join-209"><span class="linenos">209</span></a> <span class="k">if</span> <span class="n">projections</span><span class="p">:</span> +</span><span id="PythonExecutor.join-210"><a href="#PythonExecutor.join-210"><span class="linenos">210</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">({</span><span class="n">step</span><span class="o">.</span><span class="n">name</span><span class="p">:</span> <span class="n">sink</span><span class="p">})</span> +</span><span id="PythonExecutor.join-211"><a href="#PythonExecutor.join-211"><span class="linenos">211</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="PythonExecutor.join-212"><a href="#PythonExecutor.join-212"><span class="linenos">212</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">(</span> +</span><span id="PythonExecutor.join-213"><a href="#PythonExecutor.join-213"><span class="linenos">213</span></a> <span class="p">{</span> +</span><span id="PythonExecutor.join-214"><a href="#PythonExecutor.join-214"><span class="linenos">214</span></a> <span class="n">name</span><span class="p">:</span> <span class="n">Table</span><span class="p">(</span><span class="n">table</span><span class="o">.</span><span class="n">columns</span><span class="p">,</span> <span class="n">sink</span><span class="o">.</span><span class="n">rows</span><span class="p">,</span> <span class="n">table</span><span class="o">.</span><span class="n">column_range</span><span class="p">)</span> +</span><span id="PythonExecutor.join-215"><a href="#PythonExecutor.join-215"><span class="linenos">215</span></a> <span class="k">for</span> <span class="n">name</span><span class="p">,</span> <span class="n">table</span> <span class="ow">in</span> <span class="n">source_context</span><span class="o">.</span><span class="n">tables</span><span class="o">.</span><span class="n">items</span><span class="p">()</span> +</span><span id="PythonExecutor.join-216"><a href="#PythonExecutor.join-216"><span class="linenos">216</span></a> <span class="p">}</span> +</span><span id="PythonExecutor.join-217"><a href="#PythonExecutor.join-217"><span class="linenos">217</span></a> <span class="p">)</span> +</span></pre></div> + + + + + </div> + <div id="PythonExecutor.nested_loop_join" class="classattr"> + <input id="PythonExecutor.nested_loop_join-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr function"> + + <span class="def">def</span> + <span class="name">nested_loop_join</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">_join</span>, </span><span class="param"><span class="n">source_context</span>, </span><span class="param"><span class="n">join_context</span></span><span class="return-annotation">):</span></span> + + <label class="view-source-button" for="PythonExecutor.nested_loop_join-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#PythonExecutor.nested_loop_join"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="PythonExecutor.nested_loop_join-219"><a href="#PythonExecutor.nested_loop_join-219"><span class="linenos">219</span></a> <span class="k">def</span> <span class="nf">nested_loop_join</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">_join</span><span class="p">,</span> <span class="n">source_context</span><span class="p">,</span> <span class="n">join_context</span><span class="p">):</span> +</span><span id="PythonExecutor.nested_loop_join-220"><a href="#PythonExecutor.nested_loop_join-220"><span class="linenos">220</span></a> <span class="n">table</span> <span class="o">=</span> <span class="n">Table</span><span class="p">(</span><span class="n">source_context</span><span class="o">.</span><span class="n">columns</span> <span class="o">+</span> <span class="n">join_context</span><span class="o">.</span><span class="n">columns</span><span class="p">)</span> +</span><span id="PythonExecutor.nested_loop_join-221"><a href="#PythonExecutor.nested_loop_join-221"><span class="linenos">221</span></a> +</span><span id="PythonExecutor.nested_loop_join-222"><a href="#PythonExecutor.nested_loop_join-222"><span class="linenos">222</span></a> <span class="k">for</span> <span class="n">reader_a</span><span class="p">,</span> <span class="n">_</span> <span class="ow">in</span> <span class="n">source_context</span><span class="p">:</span> +</span><span id="PythonExecutor.nested_loop_join-223"><a href="#PythonExecutor.nested_loop_join-223"><span class="linenos">223</span></a> <span class="k">for</span> <span class="n">reader_b</span><span class="p">,</span> <span class="n">_</span> <span class="ow">in</span> <span class="n">join_context</span><span class="p">:</span> +</span><span id="PythonExecutor.nested_loop_join-224"><a href="#PythonExecutor.nested_loop_join-224"><span class="linenos">224</span></a> <span class="n">table</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">reader_a</span><span class="o">.</span><span class="n">row</span> <span class="o">+</span> <span class="n">reader_b</span><span class="o">.</span><span class="n">row</span><span class="p">)</span> +</span><span id="PythonExecutor.nested_loop_join-225"><a href="#PythonExecutor.nested_loop_join-225"><span class="linenos">225</span></a> +</span><span id="PythonExecutor.nested_loop_join-226"><a href="#PythonExecutor.nested_loop_join-226"><span class="linenos">226</span></a> <span class="k">return</span> <span class="n">table</span> +</span></pre></div> + + + + + </div> + <div id="PythonExecutor.hash_join" class="classattr"> + <input id="PythonExecutor.hash_join-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr function"> + + <span class="def">def</span> + <span class="name">hash_join</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">join</span>, </span><span class="param"><span class="n">source_context</span>, </span><span class="param"><span class="n">join_context</span></span><span class="return-annotation">):</span></span> + + <label class="view-source-button" for="PythonExecutor.hash_join-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#PythonExecutor.hash_join"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="PythonExecutor.hash_join-228"><a href="#PythonExecutor.hash_join-228"><span class="linenos">228</span></a> <span class="k">def</span> <span class="nf">hash_join</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">join</span><span class="p">,</span> <span class="n">source_context</span><span class="p">,</span> <span class="n">join_context</span><span class="p">):</span> +</span><span id="PythonExecutor.hash_join-229"><a href="#PythonExecutor.hash_join-229"><span class="linenos">229</span></a> <span class="n">source_key</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generate_tuple</span><span class="p">(</span><span class="n">join</span><span class="p">[</span><span class="s2">"source_key"</span><span class="p">])</span> +</span><span id="PythonExecutor.hash_join-230"><a href="#PythonExecutor.hash_join-230"><span class="linenos">230</span></a> <span class="n">join_key</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generate_tuple</span><span class="p">(</span><span class="n">join</span><span class="p">[</span><span class="s2">"join_key"</span><span class="p">])</span> +</span><span id="PythonExecutor.hash_join-231"><a href="#PythonExecutor.hash_join-231"><span class="linenos">231</span></a> <span class="n">left</span> <span class="o">=</span> <span class="n">join</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"side"</span><span class="p">)</span> <span class="o">==</span> <span class="s2">"LEFT"</span> +</span><span id="PythonExecutor.hash_join-232"><a href="#PythonExecutor.hash_join-232"><span class="linenos">232</span></a> <span class="n">right</span> <span class="o">=</span> <span class="n">join</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"side"</span><span class="p">)</span> <span class="o">==</span> <span class="s2">"RIGHT"</span> +</span><span id="PythonExecutor.hash_join-233"><a href="#PythonExecutor.hash_join-233"><span class="linenos">233</span></a> +</span><span id="PythonExecutor.hash_join-234"><a href="#PythonExecutor.hash_join-234"><span class="linenos">234</span></a> <span class="n">results</span> <span class="o">=</span> <span class="n">collections</span><span class="o">.</span><span class="n">defaultdict</span><span class="p">(</span><span class="k">lambda</span><span class="p">:</span> <span class="p">([],</span> <span class="p">[]))</span> +</span><span id="PythonExecutor.hash_join-235"><a href="#PythonExecutor.hash_join-235"><span class="linenos">235</span></a> +</span><span id="PythonExecutor.hash_join-236"><a href="#PythonExecutor.hash_join-236"><span class="linenos">236</span></a> <span class="k">for</span> <span class="n">reader</span><span class="p">,</span> <span class="n">ctx</span> <span class="ow">in</span> <span class="n">source_context</span><span class="p">:</span> +</span><span id="PythonExecutor.hash_join-237"><a href="#PythonExecutor.hash_join-237"><span class="linenos">237</span></a> <span class="n">results</span><span class="p">[</span><span class="n">ctx</span><span class="o">.</span><span class="n">eval_tuple</span><span class="p">(</span><span class="n">source_key</span><span class="p">)][</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">reader</span><span class="o">.</span><span class="n">row</span><span class="p">)</span> +</span><span id="PythonExecutor.hash_join-238"><a href="#PythonExecutor.hash_join-238"><span class="linenos">238</span></a> <span class="k">for</span> <span class="n">reader</span><span class="p">,</span> <span class="n">ctx</span> <span class="ow">in</span> <span class="n">join_context</span><span class="p">:</span> +</span><span id="PythonExecutor.hash_join-239"><a href="#PythonExecutor.hash_join-239"><span class="linenos">239</span></a> <span class="n">results</span><span class="p">[</span><span class="n">ctx</span><span class="o">.</span><span class="n">eval_tuple</span><span class="p">(</span><span class="n">join_key</span><span class="p">)][</span><span class="mi">1</span><span class="p">]</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">reader</span><span class="o">.</span><span class="n">row</span><span class="p">)</span> +</span><span id="PythonExecutor.hash_join-240"><a href="#PythonExecutor.hash_join-240"><span class="linenos">240</span></a> +</span><span id="PythonExecutor.hash_join-241"><a href="#PythonExecutor.hash_join-241"><span class="linenos">241</span></a> <span class="n">table</span> <span class="o">=</span> <span class="n">Table</span><span class="p">(</span><span class="n">source_context</span><span class="o">.</span><span class="n">columns</span> <span class="o">+</span> <span class="n">join_context</span><span class="o">.</span><span class="n">columns</span><span class="p">)</span> +</span><span id="PythonExecutor.hash_join-242"><a href="#PythonExecutor.hash_join-242"><span class="linenos">242</span></a> <span class="n">nulls</span> <span class="o">=</span> <span class="p">[(</span><span class="kc">None</span><span class="p">,)</span> <span class="o">*</span> <span class="nb">len</span><span class="p">(</span><span class="n">join_context</span><span class="o">.</span><span class="n">columns</span> <span class="k">if</span> <span class="n">left</span> <span class="k">else</span> <span class="n">source_context</span><span class="o">.</span><span class="n">columns</span><span class="p">)]</span> +</span><span id="PythonExecutor.hash_join-243"><a href="#PythonExecutor.hash_join-243"><span class="linenos">243</span></a> +</span><span id="PythonExecutor.hash_join-244"><a href="#PythonExecutor.hash_join-244"><span class="linenos">244</span></a> <span class="k">for</span> <span class="n">a_group</span><span class="p">,</span> <span class="n">b_group</span> <span class="ow">in</span> <span class="n">results</span><span class="o">.</span><span class="n">values</span><span class="p">():</span> +</span><span id="PythonExecutor.hash_join-245"><a href="#PythonExecutor.hash_join-245"><span class="linenos">245</span></a> <span class="k">if</span> <span class="n">left</span><span class="p">:</span> +</span><span id="PythonExecutor.hash_join-246"><a href="#PythonExecutor.hash_join-246"><span class="linenos">246</span></a> <span class="n">b_group</span> <span class="o">=</span> <span class="n">b_group</span> <span class="ow">or</span> <span class="n">nulls</span> +</span><span id="PythonExecutor.hash_join-247"><a href="#PythonExecutor.hash_join-247"><span class="linenos">247</span></a> <span class="k">elif</span> <span class="n">right</span><span class="p">:</span> +</span><span id="PythonExecutor.hash_join-248"><a href="#PythonExecutor.hash_join-248"><span class="linenos">248</span></a> <span class="n">a_group</span> <span class="o">=</span> <span class="n">a_group</span> <span class="ow">or</span> <span class="n">nulls</span> +</span><span id="PythonExecutor.hash_join-249"><a href="#PythonExecutor.hash_join-249"><span class="linenos">249</span></a> +</span><span id="PythonExecutor.hash_join-250"><a href="#PythonExecutor.hash_join-250"><span class="linenos">250</span></a> <span class="k">for</span> <span class="n">a_row</span><span class="p">,</span> <span class="n">b_row</span> <span class="ow">in</span> <span class="n">itertools</span><span class="o">.</span><span class="n">product</span><span class="p">(</span><span class="n">a_group</span><span class="p">,</span> <span class="n">b_group</span><span class="p">):</span> +</span><span id="PythonExecutor.hash_join-251"><a href="#PythonExecutor.hash_join-251"><span class="linenos">251</span></a> <span class="n">table</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">a_row</span> <span class="o">+</span> <span class="n">b_row</span><span class="p">)</span> +</span><span id="PythonExecutor.hash_join-252"><a href="#PythonExecutor.hash_join-252"><span class="linenos">252</span></a> +</span><span id="PythonExecutor.hash_join-253"><a href="#PythonExecutor.hash_join-253"><span class="linenos">253</span></a> <span class="k">return</span> <span class="n">table</span> +</span></pre></div> + + + + + </div> + <div id="PythonExecutor.aggregate" class="classattr"> + <input id="PythonExecutor.aggregate-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr function"> + + <span class="def">def</span> + <span class="name">aggregate</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">step</span>, </span><span class="param"><span class="n">context</span></span><span class="return-annotation">):</span></span> + + <label class="view-source-button" for="PythonExecutor.aggregate-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#PythonExecutor.aggregate"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="PythonExecutor.aggregate-255"><a href="#PythonExecutor.aggregate-255"><span class="linenos">255</span></a> <span class="k">def</span> <span class="nf">aggregate</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">step</span><span class="p">,</span> <span class="n">context</span><span class="p">):</span> +</span><span id="PythonExecutor.aggregate-256"><a href="#PythonExecutor.aggregate-256"><span class="linenos">256</span></a> <span class="n">group_by</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generate_tuple</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">group</span><span class="o">.</span><span class="n">values</span><span class="p">())</span> +</span><span id="PythonExecutor.aggregate-257"><a href="#PythonExecutor.aggregate-257"><span class="linenos">257</span></a> <span class="n">aggregations</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generate_tuple</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">aggregations</span><span class="p">)</span> +</span><span id="PythonExecutor.aggregate-258"><a href="#PythonExecutor.aggregate-258"><span class="linenos">258</span></a> <span class="n">operands</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generate_tuple</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">operands</span><span class="p">)</span> +</span><span id="PythonExecutor.aggregate-259"><a href="#PythonExecutor.aggregate-259"><span class="linenos">259</span></a> +</span><span id="PythonExecutor.aggregate-260"><a href="#PythonExecutor.aggregate-260"><span class="linenos">260</span></a> <span class="k">if</span> <span class="n">operands</span><span class="p">:</span> +</span><span id="PythonExecutor.aggregate-261"><a href="#PythonExecutor.aggregate-261"><span class="linenos">261</span></a> <span class="n">operand_table</span> <span class="o">=</span> <span class="n">Table</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">table</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">operands</span><span class="p">)</span><span class="o">.</span><span class="n">columns</span><span class="p">)</span> +</span><span id="PythonExecutor.aggregate-262"><a href="#PythonExecutor.aggregate-262"><span class="linenos">262</span></a> +</span><span id="PythonExecutor.aggregate-263"><a href="#PythonExecutor.aggregate-263"><span class="linenos">263</span></a> <span class="k">for</span> <span class="n">reader</span><span class="p">,</span> <span class="n">ctx</span> <span class="ow">in</span> <span class="n">context</span><span class="p">:</span> +</span><span id="PythonExecutor.aggregate-264"><a href="#PythonExecutor.aggregate-264"><span class="linenos">264</span></a> <span class="n">operand_table</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">ctx</span><span class="o">.</span><span class="n">eval_tuple</span><span class="p">(</span><span class="n">operands</span><span class="p">))</span> +</span><span id="PythonExecutor.aggregate-265"><a href="#PythonExecutor.aggregate-265"><span class="linenos">265</span></a> +</span><span id="PythonExecutor.aggregate-266"><a href="#PythonExecutor.aggregate-266"><span class="linenos">266</span></a> <span class="k">for</span> <span class="n">i</span><span class="p">,</span> <span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">)</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="nb">zip</span><span class="p">(</span><span class="n">context</span><span class="o">.</span><span class="n">table</span><span class="o">.</span><span class="n">rows</span><span class="p">,</span> <span class="n">operand_table</span><span class="o">.</span><span class="n">rows</span><span class="p">)):</span> +</span><span id="PythonExecutor.aggregate-267"><a href="#PythonExecutor.aggregate-267"><span class="linenos">267</span></a> <span class="n">context</span><span class="o">.</span><span class="n">table</span><span class="o">.</span><span class="n">rows</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">=</span> <span class="n">a</span> <span class="o">+</span> <span class="n">b</span> +</span><span id="PythonExecutor.aggregate-268"><a href="#PythonExecutor.aggregate-268"><span class="linenos">268</span></a> +</span><span id="PythonExecutor.aggregate-269"><a href="#PythonExecutor.aggregate-269"><span class="linenos">269</span></a> <span class="n">width</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="n">context</span><span class="o">.</span><span class="n">columns</span><span class="p">)</span> +</span><span id="PythonExecutor.aggregate-270"><a href="#PythonExecutor.aggregate-270"><span class="linenos">270</span></a> <span class="n">context</span><span class="o">.</span><span class="n">add_columns</span><span class="p">(</span><span class="o">*</span><span class="n">operand_table</span><span class="o">.</span><span class="n">columns</span><span class="p">)</span> +</span><span id="PythonExecutor.aggregate-271"><a href="#PythonExecutor.aggregate-271"><span class="linenos">271</span></a> +</span><span id="PythonExecutor.aggregate-272"><a href="#PythonExecutor.aggregate-272"><span class="linenos">272</span></a> <span class="n">operand_table</span> <span class="o">=</span> <span class="n">Table</span><span class="p">(</span> +</span><span id="PythonExecutor.aggregate-273"><a href="#PythonExecutor.aggregate-273"><span class="linenos">273</span></a> <span class="n">context</span><span class="o">.</span><span class="n">columns</span><span class="p">,</span> +</span><span id="PythonExecutor.aggregate-274"><a href="#PythonExecutor.aggregate-274"><span class="linenos">274</span></a> <span class="n">context</span><span class="o">.</span><span class="n">table</span><span class="o">.</span><span class="n">rows</span><span class="p">,</span> +</span><span id="PythonExecutor.aggregate-275"><a href="#PythonExecutor.aggregate-275"><span class="linenos">275</span></a> <span class="nb">range</span><span class="p">(</span><span class="n">width</span><span class="p">,</span> <span class="n">width</span> <span class="o">+</span> <span class="nb">len</span><span class="p">(</span><span class="n">operand_table</span><span class="o">.</span><span class="n">columns</span><span class="p">)),</span> +</span><span id="PythonExecutor.aggregate-276"><a href="#PythonExecutor.aggregate-276"><span class="linenos">276</span></a> <span class="p">)</span> +</span><span id="PythonExecutor.aggregate-277"><a href="#PythonExecutor.aggregate-277"><span class="linenos">277</span></a> +</span><span id="PythonExecutor.aggregate-278"><a href="#PythonExecutor.aggregate-278"><span class="linenos">278</span></a> <span class="n">context</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">(</span> +</span><span id="PythonExecutor.aggregate-279"><a href="#PythonExecutor.aggregate-279"><span class="linenos">279</span></a> <span class="p">{</span> +</span><span id="PythonExecutor.aggregate-280"><a href="#PythonExecutor.aggregate-280"><span class="linenos">280</span></a> <span class="kc">None</span><span class="p">:</span> <span class="n">operand_table</span><span class="p">,</span> +</span><span id="PythonExecutor.aggregate-281"><a href="#PythonExecutor.aggregate-281"><span class="linenos">281</span></a> <span class="o">**</span><span class="n">context</span><span class="o">.</span><span class="n">tables</span><span class="p">,</span> +</span><span id="PythonExecutor.aggregate-282"><a href="#PythonExecutor.aggregate-282"><span class="linenos">282</span></a> <span class="p">}</span> +</span><span id="PythonExecutor.aggregate-283"><a href="#PythonExecutor.aggregate-283"><span class="linenos">283</span></a> <span class="p">)</span> +</span><span id="PythonExecutor.aggregate-284"><a href="#PythonExecutor.aggregate-284"><span class="linenos">284</span></a> +</span><span id="PythonExecutor.aggregate-285"><a href="#PythonExecutor.aggregate-285"><span class="linenos">285</span></a> <span class="n">context</span><span class="o">.</span><span class="n">sort</span><span class="p">(</span><span class="n">group_by</span><span class="p">)</span> +</span><span id="PythonExecutor.aggregate-286"><a href="#PythonExecutor.aggregate-286"><span class="linenos">286</span></a> +</span><span id="PythonExecutor.aggregate-287"><a href="#PythonExecutor.aggregate-287"><span class="linenos">287</span></a> <span class="n">group</span> <span class="o">=</span> <span class="kc">None</span> +</span><span id="PythonExecutor.aggregate-288"><a href="#PythonExecutor.aggregate-288"><span class="linenos">288</span></a> <span class="n">start</span> <span class="o">=</span> <span class="mi">0</span> +</span><span id="PythonExecutor.aggregate-289"><a href="#PythonExecutor.aggregate-289"><span class="linenos">289</span></a> <span class="n">end</span> <span class="o">=</span> <span class="mi">1</span> +</span><span id="PythonExecutor.aggregate-290"><a href="#PythonExecutor.aggregate-290"><span class="linenos">290</span></a> <span class="n">length</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="n">context</span><span class="o">.</span><span class="n">table</span><span class="p">)</span> +</span><span id="PythonExecutor.aggregate-291"><a href="#PythonExecutor.aggregate-291"><span class="linenos">291</span></a> <span class="n">table</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">table</span><span class="p">(</span><span class="nb">list</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">group</span><span class="p">)</span> <span class="o">+</span> <span class="n">step</span><span class="o">.</span><span class="n">aggregations</span><span class="p">)</span> +</span><span id="PythonExecutor.aggregate-292"><a href="#PythonExecutor.aggregate-292"><span class="linenos">292</span></a> <span class="n">condition</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generate</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">condition</span><span class="p">)</span> +</span><span id="PythonExecutor.aggregate-293"><a href="#PythonExecutor.aggregate-293"><span class="linenos">293</span></a> +</span><span id="PythonExecutor.aggregate-294"><a href="#PythonExecutor.aggregate-294"><span class="linenos">294</span></a> <span class="k">def</span> <span class="nf">add_row</span><span class="p">():</span> +</span><span id="PythonExecutor.aggregate-295"><a href="#PythonExecutor.aggregate-295"><span class="linenos">295</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">condition</span> <span class="ow">or</span> <span class="n">context</span><span class="o">.</span><span class="n">eval</span><span class="p">(</span><span class="n">condition</span><span class="p">):</span> +</span><span id="PythonExecutor.aggregate-296"><a href="#PythonExecutor.aggregate-296"><span class="linenos">296</span></a> <span class="n">table</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">group</span> <span class="o">+</span> <span class="n">context</span><span class="o">.</span><span class="n">eval_tuple</span><span class="p">(</span><span class="n">aggregations</span><span class="p">))</span> +</span><span id="PythonExecutor.aggregate-297"><a href="#PythonExecutor.aggregate-297"><span class="linenos">297</span></a> +</span><span id="PythonExecutor.aggregate-298"><a href="#PythonExecutor.aggregate-298"><span class="linenos">298</span></a> <span class="k">if</span> <span class="n">length</span><span class="p">:</span> +</span><span id="PythonExecutor.aggregate-299"><a href="#PythonExecutor.aggregate-299"><span class="linenos">299</span></a> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">length</span><span class="p">):</span> +</span><span id="PythonExecutor.aggregate-300"><a href="#PythonExecutor.aggregate-300"><span class="linenos">300</span></a> <span class="n">context</span><span class="o">.</span><span class="n">set_index</span><span class="p">(</span><span class="n">i</span><span class="p">)</span> +</span><span id="PythonExecutor.aggregate-301"><a href="#PythonExecutor.aggregate-301"><span class="linenos">301</span></a> <span class="n">key</span> <span class="o">=</span> <span class="n">context</span><span class="o">.</span><span class="n">eval_tuple</span><span class="p">(</span><span class="n">group_by</span><span class="p">)</span> +</span><span id="PythonExecutor.aggregate-302"><a href="#PythonExecutor.aggregate-302"><span class="linenos">302</span></a> <span class="n">group</span> <span class="o">=</span> <span class="n">key</span> <span class="k">if</span> <span class="n">group</span> <span class="ow">is</span> <span class="kc">None</span> <span class="k">else</span> <span class="n">group</span> +</span><span id="PythonExecutor.aggregate-303"><a href="#PythonExecutor.aggregate-303"><span class="linenos">303</span></a> <span class="n">end</span> <span class="o">+=</span> <span class="mi">1</span> +</span><span id="PythonExecutor.aggregate-304"><a href="#PythonExecutor.aggregate-304"><span class="linenos">304</span></a> <span class="k">if</span> <span class="n">key</span> <span class="o">!=</span> <span class="n">group</span><span class="p">:</span> +</span><span id="PythonExecutor.aggregate-305"><a href="#PythonExecutor.aggregate-305"><span class="linenos">305</span></a> <span class="n">context</span><span class="o">.</span><span class="n">set_range</span><span class="p">(</span><span class="n">start</span><span class="p">,</span> <span class="n">end</span> <span class="o">-</span> <span class="mi">2</span><span class="p">)</span> +</span><span id="PythonExecutor.aggregate-306"><a href="#PythonExecutor.aggregate-306"><span class="linenos">306</span></a> <span class="n">add_row</span><span class="p">()</span> +</span><span id="PythonExecutor.aggregate-307"><a href="#PythonExecutor.aggregate-307"><span class="linenos">307</span></a> <span class="n">group</span> <span class="o">=</span> <span class="n">key</span> +</span><span id="PythonExecutor.aggregate-308"><a href="#PythonExecutor.aggregate-308"><span class="linenos">308</span></a> <span class="n">start</span> <span class="o">=</span> <span class="n">end</span> <span class="o">-</span> <span class="mi">2</span> +</span><span id="PythonExecutor.aggregate-309"><a href="#PythonExecutor.aggregate-309"><span class="linenos">309</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">table</span><span class="o">.</span><span class="n">rows</span><span class="p">)</span> <span class="o">>=</span> <span class="n">step</span><span class="o">.</span><span class="n">limit</span><span class="p">:</span> +</span><span id="PythonExecutor.aggregate-310"><a href="#PythonExecutor.aggregate-310"><span class="linenos">310</span></a> <span class="k">break</span> +</span><span id="PythonExecutor.aggregate-311"><a href="#PythonExecutor.aggregate-311"><span class="linenos">311</span></a> <span class="k">if</span> <span class="n">i</span> <span class="o">==</span> <span class="n">length</span> <span class="o">-</span> <span class="mi">1</span><span class="p">:</span> +</span><span id="PythonExecutor.aggregate-312"><a href="#PythonExecutor.aggregate-312"><span class="linenos">312</span></a> <span class="n">context</span><span class="o">.</span><span class="n">set_range</span><span class="p">(</span><span class="n">start</span><span class="p">,</span> <span class="n">end</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)</span> +</span><span id="PythonExecutor.aggregate-313"><a href="#PythonExecutor.aggregate-313"><span class="linenos">313</span></a> <span class="n">add_row</span><span class="p">()</span> +</span><span id="PythonExecutor.aggregate-314"><a href="#PythonExecutor.aggregate-314"><span class="linenos">314</span></a> <span class="k">elif</span> <span class="n">step</span><span class="o">.</span><span class="n">limit</span> <span class="o">></span> <span class="mi">0</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">group_by</span><span class="p">:</span> +</span><span id="PythonExecutor.aggregate-315"><a href="#PythonExecutor.aggregate-315"><span class="linenos">315</span></a> <span class="n">context</span><span class="o">.</span><span class="n">set_range</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span> +</span><span id="PythonExecutor.aggregate-316"><a href="#PythonExecutor.aggregate-316"><span class="linenos">316</span></a> <span class="n">table</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">context</span><span class="o">.</span><span class="n">eval_tuple</span><span class="p">(</span><span class="n">aggregations</span><span class="p">))</span> +</span><span id="PythonExecutor.aggregate-317"><a href="#PythonExecutor.aggregate-317"><span class="linenos">317</span></a> +</span><span id="PythonExecutor.aggregate-318"><a href="#PythonExecutor.aggregate-318"><span class="linenos">318</span></a> <span class="n">context</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">({</span><span class="n">step</span><span class="o">.</span><span class="n">name</span><span class="p">:</span> <span class="n">table</span><span class="p">,</span> <span class="o">**</span><span class="p">{</span><span class="n">name</span><span class="p">:</span> <span class="n">table</span> <span class="k">for</span> <span class="n">name</span> <span class="ow">in</span> <span class="n">context</span><span class="o">.</span><span class="n">tables</span><span class="p">}})</span> +</span><span id="PythonExecutor.aggregate-319"><a href="#PythonExecutor.aggregate-319"><span class="linenos">319</span></a> +</span><span id="PythonExecutor.aggregate-320"><a href="#PythonExecutor.aggregate-320"><span class="linenos">320</span></a> <span class="k">if</span> <span class="n">step</span><span class="o">.</span><span class="n">projections</span><span class="p">:</span> +</span><span id="PythonExecutor.aggregate-321"><a href="#PythonExecutor.aggregate-321"><span class="linenos">321</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">scan</span><span class="p">(</span><span class="n">step</span><span class="p">,</span> <span class="n">context</span><span class="p">)</span> +</span><span id="PythonExecutor.aggregate-322"><a href="#PythonExecutor.aggregate-322"><span class="linenos">322</span></a> <span class="k">return</span> <span class="n">context</span> +</span></pre></div> + + + + + </div> + <div id="PythonExecutor.sort" class="classattr"> + <input id="PythonExecutor.sort-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr function"> + + <span class="def">def</span> + <span class="name">sort</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">step</span>, </span><span class="param"><span class="n">context</span></span><span class="return-annotation">):</span></span> + + <label class="view-source-button" for="PythonExecutor.sort-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#PythonExecutor.sort"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="PythonExecutor.sort-324"><a href="#PythonExecutor.sort-324"><span class="linenos">324</span></a> <span class="k">def</span> <span class="nf">sort</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">step</span><span class="p">,</span> <span class="n">context</span><span class="p">):</span> +</span><span id="PythonExecutor.sort-325"><a href="#PythonExecutor.sort-325"><span class="linenos">325</span></a> <span class="n">projections</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generate_tuple</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">projections</span><span class="p">)</span> +</span><span id="PythonExecutor.sort-326"><a href="#PythonExecutor.sort-326"><span class="linenos">326</span></a> <span class="n">projection_columns</span> <span class="o">=</span> <span class="p">[</span><span class="n">p</span><span class="o">.</span><span class="n">alias_or_name</span> <span class="k">for</span> <span class="n">p</span> <span class="ow">in</span> <span class="n">step</span><span class="o">.</span><span class="n">projections</span><span class="p">]</span> +</span><span id="PythonExecutor.sort-327"><a href="#PythonExecutor.sort-327"><span class="linenos">327</span></a> <span class="n">all_columns</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">context</span><span class="o">.</span><span class="n">columns</span><span class="p">)</span> <span class="o">+</span> <span class="n">projection_columns</span> +</span><span id="PythonExecutor.sort-328"><a href="#PythonExecutor.sort-328"><span class="linenos">328</span></a> <span class="n">sink</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">table</span><span class="p">(</span><span class="n">all_columns</span><span class="p">)</span> +</span><span id="PythonExecutor.sort-329"><a href="#PythonExecutor.sort-329"><span class="linenos">329</span></a> <span class="k">for</span> <span class="n">reader</span><span class="p">,</span> <span class="n">ctx</span> <span class="ow">in</span> <span class="n">context</span><span class="p">:</span> +</span><span id="PythonExecutor.sort-330"><a href="#PythonExecutor.sort-330"><span class="linenos">330</span></a> <span class="n">sink</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">reader</span><span class="o">.</span><span class="n">row</span> <span class="o">+</span> <span class="n">ctx</span><span class="o">.</span><span class="n">eval_tuple</span><span class="p">(</span><span class="n">projections</span><span class="p">))</span> +</span><span id="PythonExecutor.sort-331"><a href="#PythonExecutor.sort-331"><span class="linenos">331</span></a> +</span><span id="PythonExecutor.sort-332"><a href="#PythonExecutor.sort-332"><span class="linenos">332</span></a> <span class="n">sort_ctx</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">(</span> +</span><span id="PythonExecutor.sort-333"><a href="#PythonExecutor.sort-333"><span class="linenos">333</span></a> <span class="p">{</span> +</span><span id="PythonExecutor.sort-334"><a href="#PythonExecutor.sort-334"><span class="linenos">334</span></a> <span class="kc">None</span><span class="p">:</span> <span class="n">sink</span><span class="p">,</span> +</span><span id="PythonExecutor.sort-335"><a href="#PythonExecutor.sort-335"><span class="linenos">335</span></a> <span class="o">**</span><span class="p">{</span><span class="n">table</span><span class="p">:</span> <span class="n">sink</span> <span class="k">for</span> <span class="n">table</span> <span class="ow">in</span> <span class="n">context</span><span class="o">.</span><span class="n">tables</span><span class="p">},</span> +</span><span id="PythonExecutor.sort-336"><a href="#PythonExecutor.sort-336"><span class="linenos">336</span></a> <span class="p">}</span> +</span><span id="PythonExecutor.sort-337"><a href="#PythonExecutor.sort-337"><span class="linenos">337</span></a> <span class="p">)</span> +</span><span id="PythonExecutor.sort-338"><a href="#PythonExecutor.sort-338"><span class="linenos">338</span></a> <span class="n">sort_ctx</span><span class="o">.</span><span class="n">sort</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">generate_tuple</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">key</span><span class="p">))</span> +</span><span id="PythonExecutor.sort-339"><a href="#PythonExecutor.sort-339"><span class="linenos">339</span></a> +</span><span id="PythonExecutor.sort-340"><a href="#PythonExecutor.sort-340"><span class="linenos">340</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">math</span><span class="o">.</span><span class="n">isinf</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">limit</span><span class="p">):</span> +</span><span id="PythonExecutor.sort-341"><a href="#PythonExecutor.sort-341"><span class="linenos">341</span></a> <span class="n">sort_ctx</span><span class="o">.</span><span class="n">table</span><span class="o">.</span><span class="n">rows</span> <span class="o">=</span> <span class="n">sort_ctx</span><span class="o">.</span><span class="n">table</span><span class="o">.</span><span class="n">rows</span><span class="p">[</span><span class="mi">0</span> <span class="p">:</span> <span class="n">step</span><span class="o">.</span><span class="n">limit</span><span class="p">]</span> +</span><span id="PythonExecutor.sort-342"><a href="#PythonExecutor.sort-342"><span class="linenos">342</span></a> +</span><span id="PythonExecutor.sort-343"><a href="#PythonExecutor.sort-343"><span class="linenos">343</span></a> <span class="n">output</span> <span class="o">=</span> <span class="n">Table</span><span class="p">(</span> +</span><span id="PythonExecutor.sort-344"><a href="#PythonExecutor.sort-344"><span class="linenos">344</span></a> <span class="n">projection_columns</span><span class="p">,</span> +</span><span id="PythonExecutor.sort-345"><a href="#PythonExecutor.sort-345"><span class="linenos">345</span></a> <span class="n">rows</span><span class="o">=</span><span class="p">[</span><span class="n">r</span><span class="p">[</span><span class="nb">len</span><span class="p">(</span><span class="n">context</span><span class="o">.</span><span class="n">columns</span><span class="p">)</span> <span class="p">:</span> <span class="nb">len</span><span class="p">(</span><span class="n">all_columns</span><span class="p">)]</span> <span class="k">for</span> <span class="n">r</span> <span class="ow">in</span> <span class="n">sort_ctx</span><span class="o">.</span><span class="n">table</span><span class="o">.</span><span class="n">rows</span><span class="p">],</span> +</span><span id="PythonExecutor.sort-346"><a href="#PythonExecutor.sort-346"><span class="linenos">346</span></a> <span class="p">)</span> +</span><span id="PythonExecutor.sort-347"><a href="#PythonExecutor.sort-347"><span class="linenos">347</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">({</span><span class="n">step</span><span class="o">.</span><span class="n">name</span><span class="p">:</span> <span class="n">output</span><span class="p">})</span> +</span></pre></div> + + + + + </div> + <div id="PythonExecutor.set_operation" class="classattr"> + <input id="PythonExecutor.set_operation-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr function"> + + <span class="def">def</span> + <span class="name">set_operation</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">step</span>, </span><span class="param"><span class="n">context</span></span><span class="return-annotation">):</span></span> + + <label class="view-source-button" for="PythonExecutor.set_operation-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#PythonExecutor.set_operation"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="PythonExecutor.set_operation-349"><a href="#PythonExecutor.set_operation-349"><span class="linenos">349</span></a> <span class="k">def</span> <span class="nf">set_operation</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">step</span><span class="p">,</span> <span class="n">context</span><span class="p">):</span> +</span><span id="PythonExecutor.set_operation-350"><a href="#PythonExecutor.set_operation-350"><span class="linenos">350</span></a> <span class="n">left</span> <span class="o">=</span> <span class="n">context</span><span class="o">.</span><span class="n">tables</span><span class="p">[</span><span class="n">step</span><span class="o">.</span><span class="n">left</span><span class="p">]</span> +</span><span id="PythonExecutor.set_operation-351"><a href="#PythonExecutor.set_operation-351"><span class="linenos">351</span></a> <span class="n">right</span> <span class="o">=</span> <span class="n">context</span><span class="o">.</span><span class="n">tables</span><span class="p">[</span><span class="n">step</span><span class="o">.</span><span class="n">right</span><span class="p">]</span> +</span><span id="PythonExecutor.set_operation-352"><a href="#PythonExecutor.set_operation-352"><span class="linenos">352</span></a> +</span><span id="PythonExecutor.set_operation-353"><a href="#PythonExecutor.set_operation-353"><span class="linenos">353</span></a> <span class="n">sink</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">table</span><span class="p">(</span><span class="n">left</span><span class="o">.</span><span class="n">columns</span><span class="p">)</span> +</span><span id="PythonExecutor.set_operation-354"><a href="#PythonExecutor.set_operation-354"><span class="linenos">354</span></a> +</span><span id="PythonExecutor.set_operation-355"><a href="#PythonExecutor.set_operation-355"><span class="linenos">355</span></a> <span class="k">if</span> <span class="nb">issubclass</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">op</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Intersect</span><span class="p">):</span> +</span><span id="PythonExecutor.set_operation-356"><a href="#PythonExecutor.set_operation-356"><span class="linenos">356</span></a> <span class="n">sink</span><span class="o">.</span><span class="n">rows</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="nb">set</span><span class="p">(</span><span class="n">left</span><span class="o">.</span><span class="n">rows</span><span class="p">)</span><span class="o">.</span><span class="n">intersection</span><span class="p">(</span><span class="nb">set</span><span class="p">(</span><span class="n">right</span><span class="o">.</span><span class="n">rows</span><span class="p">)))</span> +</span><span id="PythonExecutor.set_operation-357"><a href="#PythonExecutor.set_operation-357"><span class="linenos">357</span></a> <span class="k">elif</span> <span class="nb">issubclass</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">op</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Except</span><span class="p">):</span> +</span><span id="PythonExecutor.set_operation-358"><a href="#PythonExecutor.set_operation-358"><span class="linenos">358</span></a> <span class="n">sink</span><span class="o">.</span><span class="n">rows</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="nb">set</span><span class="p">(</span><span class="n">left</span><span class="o">.</span><span class="n">rows</span><span class="p">)</span><span class="o">.</span><span class="n">difference</span><span class="p">(</span><span class="nb">set</span><span class="p">(</span><span class="n">right</span><span class="o">.</span><span class="n">rows</span><span class="p">)))</span> +</span><span id="PythonExecutor.set_operation-359"><a href="#PythonExecutor.set_operation-359"><span class="linenos">359</span></a> <span class="k">elif</span> <span class="nb">issubclass</span><span class="p">(</span><span class="n">step</span><span class="o">.</span><span class="n">op</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Union</span><span class="p">)</span> <span class="ow">and</span> <span class="n">step</span><span class="o">.</span><span class="n">distinct</span><span class="p">:</span> +</span><span id="PythonExecutor.set_operation-360"><a href="#PythonExecutor.set_operation-360"><span class="linenos">360</span></a> <span class="n">sink</span><span class="o">.</span><span class="n">rows</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="nb">set</span><span class="p">(</span><span class="n">left</span><span class="o">.</span><span class="n">rows</span><span class="p">)</span><span class="o">.</span><span class="n">union</span><span class="p">(</span><span class="nb">set</span><span class="p">(</span><span class="n">right</span><span class="o">.</span><span class="n">rows</span><span class="p">)))</span> +</span><span id="PythonExecutor.set_operation-361"><a href="#PythonExecutor.set_operation-361"><span class="linenos">361</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="PythonExecutor.set_operation-362"><a href="#PythonExecutor.set_operation-362"><span class="linenos">362</span></a> <span class="n">sink</span><span class="o">.</span><span class="n">rows</span> <span class="o">=</span> <span class="n">left</span><span class="o">.</span><span class="n">rows</span> <span class="o">+</span> <span class="n">right</span><span class="o">.</span><span class="n">rows</span> +</span><span id="PythonExecutor.set_operation-363"><a href="#PythonExecutor.set_operation-363"><span class="linenos">363</span></a> +</span><span id="PythonExecutor.set_operation-364"><a href="#PythonExecutor.set_operation-364"><span class="linenos">364</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">context</span><span class="p">({</span><span class="n">step</span><span class="o">.</span><span class="n">name</span><span class="p">:</span> <span class="n">sink</span><span class="p">})</span> +</span></pre></div> + + + + + </div> + </section> + <section id="Python"> + <input id="Python-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr class"> + + <span class="def">class</span> + <span class="name">Python</span><wbr>(<span class="base"><a href="../dialects/dialect.html#Dialect">sqlglot.dialects.dialect.Dialect</a></span>): + + <label class="view-source-button" for="Python-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#Python"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="Python-410"><a href="#Python-410"><span class="linenos">410</span></a><span class="k">class</span> <span class="nc">Python</span><span class="p">(</span><span class="n">Dialect</span><span class="p">):</span> +</span><span id="Python-411"><a href="#Python-411"><span class="linenos">411</span></a> <span class="k">class</span> <span class="nc">Tokenizer</span><span class="p">(</span><span class="n">tokens</span><span class="o">.</span><span class="n">Tokenizer</span><span class="p">):</span> +</span><span id="Python-412"><a href="#Python-412"><span class="linenos">412</span></a> <span class="n">STRING_ESCAPES</span> <span class="o">=</span> <span class="p">[</span><span class="s2">"</span><span class="se">\\</span><span class="s2">"</span><span class="p">]</span> +</span><span id="Python-413"><a href="#Python-413"><span class="linenos">413</span></a> +</span><span id="Python-414"><a href="#Python-414"><span class="linenos">414</span></a> <span class="k">class</span> <span class="nc">Generator</span><span class="p">(</span><span class="n">generator</span><span class="o">.</span><span class="n">Generator</span><span class="p">):</span> +</span><span id="Python-415"><a href="#Python-415"><span class="linenos">415</span></a> <span class="n">TRANSFORMS</span> <span class="o">=</span> <span class="p">{</span> +</span><span id="Python-416"><a href="#Python-416"><span class="linenos">416</span></a> <span class="o">**</span><span class="p">{</span><span class="n">klass</span><span class="p">:</span> <span class="n">_rename</span> <span class="k">for</span> <span class="n">klass</span> <span class="ow">in</span> <span class="n">subclasses</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="vm">__name__</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Binary</span><span class="p">)},</span> +</span><span id="Python-417"><a href="#Python-417"><span class="linenos">417</span></a> <span class="o">**</span><span class="p">{</span><span class="n">klass</span><span class="p">:</span> <span class="n">_rename</span> <span class="k">for</span> <span class="n">klass</span> <span class="ow">in</span> <span class="n">exp</span><span class="o">.</span><span class="n">ALL_FUNCTIONS</span><span class="p">},</span> +</span><span id="Python-418"><a href="#Python-418"><span class="linenos">418</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Case</span><span class="p">:</span> <span class="n">_case_sql</span><span class="p">,</span> +</span><span id="Python-419"><a href="#Python-419"><span class="linenos">419</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Alias</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">),</span> +</span><span id="Python-420"><a href="#Python-420"><span class="linenos">420</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Array</span><span class="p">:</span> <span class="n">inline_array_sql</span><span class="p">,</span> +</span><span id="Python-421"><a href="#Python-421"><span class="linenos">421</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">"and"</span><span class="p">),</span> +</span><span id="Python-422"><a href="#Python-422"><span class="linenos">422</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Between</span><span class="p">:</span> <span class="n">_rename</span><span class="p">,</span> +</span><span id="Python-423"><a href="#Python-423"><span class="linenos">423</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Boolean</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="s2">"True"</span> <span class="k">if</span> <span class="n">e</span><span class="o">.</span><span class="n">this</span> <span class="k">else</span> <span class="s2">"False"</span><span class="p">,</span> +</span><span id="Python-424"><a href="#Python-424"><span class="linenos">424</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Cast</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">"CAST(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">)</span><span class="si">}</span><span class="s2">, exp.DataType.Type.</span><span class="si">{</span><span class="n">e</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s1">'to'</span><span class="p">]</span><span class="si">}</span><span class="s2">)"</span><span class="p">,</span> +</span><span id="Python-425"><a href="#Python-425"><span class="linenos">425</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">"scope[</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">'table'</span><span class="p">)</span><span class="w"> </span><span class="ow">or</span><span class="w"> </span><span class="kc">None</span><span class="si">}</span><span class="s2">][</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">)</span><span class="si">}</span><span class="s2">]"</span><span class="p">,</span> +</span><span id="Python-426"><a href="#Python-426"><span class="linenos">426</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Distinct</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">"set(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">'this'</span><span class="p">)</span><span class="si">}</span><span class="s2">)"</span><span class="p">,</span> +</span><span id="Python-427"><a href="#Python-427"><span class="linenos">427</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Extract</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">"EXTRACT('</span><span class="si">{</span><span class="n">e</span><span class="o">.</span><span class="n">name</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span><span class="si">}</span><span class="s2">', </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">'expression'</span><span class="p">)</span><span class="si">}</span><span class="s2">)"</span><span class="p">,</span> +</span><span id="Python-428"><a href="#Python-428"><span class="linenos">428</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">In</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">"</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">'this'</span><span class="p">)</span><span class="si">}</span><span class="s2"> in (</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">expressions</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="n">flat</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span><span class="si">}</span><span class="s2">)"</span><span class="p">,</span> +</span><span id="Python-429"><a href="#Python-429"><span class="linenos">429</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Is</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">"is"</span><span class="p">),</span> +</span><span id="Python-430"><a href="#Python-430"><span class="linenos">430</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Lambda</span><span class="p">:</span> <span class="n">_lambda_sql</span><span class="p">,</span> +</span><span id="Python-431"><a href="#Python-431"><span class="linenos">431</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">"not </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">)</span><span class="si">}</span><span class="s2">"</span><span class="p">,</span> +</span><span id="Python-432"><a href="#Python-432"><span class="linenos">432</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Null</span><span class="p">:</span> <span class="k">lambda</span> <span class="o">*</span><span class="n">_</span><span class="p">:</span> <span class="s2">"None"</span><span class="p">,</span> +</span><span id="Python-433"><a href="#Python-433"><span class="linenos">433</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Or</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">"or"</span><span class="p">),</span> +</span><span id="Python-434"><a href="#Python-434"><span class="linenos">434</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Ordered</span><span class="p">:</span> <span class="n">_ordered_py</span><span class="p">,</span> +</span><span id="Python-435"><a href="#Python-435"><span class="linenos">435</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Star</span><span class="p">:</span> <span class="k">lambda</span> <span class="o">*</span><span class="n">_</span><span class="p">:</span> <span class="s2">"1"</span><span class="p">,</span> +</span><span id="Python-436"><a href="#Python-436"><span class="linenos">436</span></a> <span class="p">}</span> +</span></pre></div> + + + + + <div id="Python.__init__" class="classattr"> + <div class="attr function"> + + <span class="name">Python</span><span class="signature pdoc-code condensed">()</span> + + + </div> + <a class="headerlink" href="#Python.__init__"></a> + + + + </div> + <div class="inherited"> + <h5>Inherited Members</h5> + <dl> + <div><dt><a href="../dialects/dialect.html#Dialect">sqlglot.dialects.dialect.Dialect</a></dt> + <dd id="Python.get_or_raise" class="function"><a href="../dialects/dialect.html#Dialect.get_or_raise">get_or_raise</a></dd> + <dd id="Python.format_time" class="function"><a href="../dialects/dialect.html#Dialect.format_time">format_time</a></dd> + <dd id="Python.parse" class="function"><a href="../dialects/dialect.html#Dialect.parse">parse</a></dd> + <dd id="Python.parse_into" class="function"><a href="../dialects/dialect.html#Dialect.parse_into">parse_into</a></dd> + <dd id="Python.generate" class="function"><a href="../dialects/dialect.html#Dialect.generate">generate</a></dd> + <dd id="Python.transpile" class="function"><a href="../dialects/dialect.html#Dialect.transpile">transpile</a></dd> + <dd id="Python.parser" class="function"><a href="../dialects/dialect.html#Dialect.parser">parser</a></dd> + <dd id="Python.generator" class="function"><a href="../dialects/dialect.html#Dialect.generator">generator</a></dd> + + </div> + </dl> + </div> + </section> + <section id="Python.Tokenizer"> + <input id="Python.Tokenizer-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr class"> + + <span class="def">class</span> + <span class="name">Python.Tokenizer</span><wbr>(<span class="base"><a href="../tokens.html#Tokenizer">sqlglot.tokens.Tokenizer</a></span>): + + <label class="view-source-button" for="Python.Tokenizer-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#Python.Tokenizer"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="Python.Tokenizer-411"><a href="#Python.Tokenizer-411"><span class="linenos">411</span></a> <span class="k">class</span> <span class="nc">Tokenizer</span><span class="p">(</span><span class="n">tokens</span><span class="o">.</span><span class="n">Tokenizer</span><span class="p">):</span> +</span><span id="Python.Tokenizer-412"><a href="#Python.Tokenizer-412"><span class="linenos">412</span></a> <span class="n">STRING_ESCAPES</span> <span class="o">=</span> <span class="p">[</span><span class="s2">"</span><span class="se">\\</span><span class="s2">"</span><span class="p">]</span> +</span></pre></div> + + + + + <div class="inherited"> + <h5>Inherited Members</h5> + <dl> + <div><dt><a href="../tokens.html#Tokenizer">sqlglot.tokens.Tokenizer</a></dt> + <dd id="Python.Tokenizer.__init__" class="function"><a href="../tokens.html#Tokenizer.__init__">Tokenizer</a></dd> + <dd id="Python.Tokenizer.reset" class="function"><a href="../tokens.html#Tokenizer.reset">reset</a></dd> + <dd id="Python.Tokenizer.tokenize" class="function"><a href="../tokens.html#Tokenizer.tokenize">tokenize</a></dd> + + </div> + </dl> + </div> + </section> + <section id="Python.Generator"> + <input id="Python.Generator-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr class"> + + <span class="def">class</span> + <span class="name">Python.Generator</span><wbr>(<span class="base"><a href="../generator.html#Generator">sqlglot.generator.Generator</a></span>): + + <label class="view-source-button" for="Python.Generator-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#Python.Generator"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="Python.Generator-414"><a href="#Python.Generator-414"><span class="linenos">414</span></a> <span class="k">class</span> <span class="nc">Generator</span><span class="p">(</span><span class="n">generator</span><span class="o">.</span><span class="n">Generator</span><span class="p">):</span> +</span><span id="Python.Generator-415"><a href="#Python.Generator-415"><span class="linenos">415</span></a> <span class="n">TRANSFORMS</span> <span class="o">=</span> <span class="p">{</span> +</span><span id="Python.Generator-416"><a href="#Python.Generator-416"><span class="linenos">416</span></a> <span class="o">**</span><span class="p">{</span><span class="n">klass</span><span class="p">:</span> <span class="n">_rename</span> <span class="k">for</span> <span class="n">klass</span> <span class="ow">in</span> <span class="n">subclasses</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="vm">__name__</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Binary</span><span class="p">)},</span> +</span><span id="Python.Generator-417"><a href="#Python.Generator-417"><span class="linenos">417</span></a> <span class="o">**</span><span class="p">{</span><span class="n">klass</span><span class="p">:</span> <span class="n">_rename</span> <span class="k">for</span> <span class="n">klass</span> <span class="ow">in</span> <span class="n">exp</span><span class="o">.</span><span class="n">ALL_FUNCTIONS</span><span class="p">},</span> +</span><span id="Python.Generator-418"><a href="#Python.Generator-418"><span class="linenos">418</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Case</span><span class="p">:</span> <span class="n">_case_sql</span><span class="p">,</span> +</span><span id="Python.Generator-419"><a href="#Python.Generator-419"><span class="linenos">419</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Alias</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">),</span> +</span><span id="Python.Generator-420"><a href="#Python.Generator-420"><span class="linenos">420</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Array</span><span class="p">:</span> <span class="n">inline_array_sql</span><span class="p">,</span> +</span><span id="Python.Generator-421"><a href="#Python.Generator-421"><span class="linenos">421</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">And</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">"and"</span><span class="p">),</span> +</span><span id="Python.Generator-422"><a href="#Python.Generator-422"><span class="linenos">422</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Between</span><span class="p">:</span> <span class="n">_rename</span><span class="p">,</span> +</span><span id="Python.Generator-423"><a href="#Python.Generator-423"><span class="linenos">423</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Boolean</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="s2">"True"</span> <span class="k">if</span> <span class="n">e</span><span class="o">.</span><span class="n">this</span> <span class="k">else</span> <span class="s2">"False"</span><span class="p">,</span> +</span><span id="Python.Generator-424"><a href="#Python.Generator-424"><span class="linenos">424</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Cast</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">"CAST(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">)</span><span class="si">}</span><span class="s2">, exp.DataType.Type.</span><span class="si">{</span><span class="n">e</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s1">'to'</span><span class="p">]</span><span class="si">}</span><span class="s2">)"</span><span class="p">,</span> +</span><span id="Python.Generator-425"><a href="#Python.Generator-425"><span class="linenos">425</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">"scope[</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">'table'</span><span class="p">)</span><span class="w"> </span><span class="ow">or</span><span class="w"> </span><span class="kc">None</span><span class="si">}</span><span class="s2">][</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">)</span><span class="si">}</span><span class="s2">]"</span><span class="p">,</span> +</span><span id="Python.Generator-426"><a href="#Python.Generator-426"><span class="linenos">426</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Distinct</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">"set(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">'this'</span><span class="p">)</span><span class="si">}</span><span class="s2">)"</span><span class="p">,</span> +</span><span id="Python.Generator-427"><a href="#Python.Generator-427"><span class="linenos">427</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Extract</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">"EXTRACT('</span><span class="si">{</span><span class="n">e</span><span class="o">.</span><span class="n">name</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span><span class="si">}</span><span class="s2">', </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">'expression'</span><span class="p">)</span><span class="si">}</span><span class="s2">)"</span><span class="p">,</span> +</span><span id="Python.Generator-428"><a href="#Python.Generator-428"><span class="linenos">428</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">In</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">"</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="s1">'this'</span><span class="p">)</span><span class="si">}</span><span class="s2"> in (</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">expressions</span><span class="p">(</span><span class="n">e</span><span class="p">,</span><span class="w"> </span><span class="n">flat</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span><span class="si">}</span><span class="s2">)"</span><span class="p">,</span> +</span><span id="Python.Generator-429"><a href="#Python.Generator-429"><span class="linenos">429</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Is</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">"is"</span><span class="p">),</span> +</span><span id="Python.Generator-430"><a href="#Python.Generator-430"><span class="linenos">430</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Lambda</span><span class="p">:</span> <span class="n">_lambda_sql</span><span class="p">,</span> +</span><span id="Python.Generator-431"><a href="#Python.Generator-431"><span class="linenos">431</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Not</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="sa">f</span><span class="s2">"not </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sql</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">this</span><span class="p">)</span><span class="si">}</span><span class="s2">"</span><span class="p">,</span> +</span><span id="Python.Generator-432"><a href="#Python.Generator-432"><span class="linenos">432</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Null</span><span class="p">:</span> <span class="k">lambda</span> <span class="o">*</span><span class="n">_</span><span class="p">:</span> <span class="s2">"None"</span><span class="p">,</span> +</span><span id="Python.Generator-433"><a href="#Python.Generator-433"><span class="linenos">433</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Or</span><span class="p">:</span> <span class="k">lambda</span> <span class="bp">self</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">binary</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="s2">"or"</span><span class="p">),</span> +</span><span id="Python.Generator-434"><a href="#Python.Generator-434"><span class="linenos">434</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Ordered</span><span class="p">:</span> <span class="n">_ordered_py</span><span class="p">,</span> +</span><span id="Python.Generator-435"><a href="#Python.Generator-435"><span class="linenos">435</span></a> <span class="n">exp</span><span class="o">.</span><span class="n">Star</span><span class="p">:</span> <span class="k">lambda</span> <span class="o">*</span><span class="n">_</span><span class="p">:</span> <span class="s2">"1"</span><span class="p">,</span> +</span><span id="Python.Generator-436"><a href="#Python.Generator-436"><span class="linenos">436</span></a> <span class="p">}</span> +</span></pre></div> + + + <div class="docstring"><p>Generator interprets the given syntax tree and produces a SQL string as an output.</p> + +<h6 id="arguments">Arguments:</h6> + +<ul> +<li><strong>time_mapping (dict):</strong> the dictionary of custom time mappings in which the key +represents a python time format and the output the target time format</li> +<li><strong>time_trie (trie):</strong> a trie of the time_mapping keys</li> +<li><strong>pretty (bool):</strong> if set to True the returned string will be formatted. Default: False.</li> +<li><strong>quote_start (str):</strong> specifies which starting character to use to delimit quotes. Default: '.</li> +<li><strong>quote_end (str):</strong> specifies which ending character to use to delimit quotes. Default: '.</li> +<li><strong>identifier_start (str):</strong> specifies which starting character to use to delimit identifiers. Default: ".</li> +<li><strong>identifier_end (str):</strong> specifies which ending character to use to delimit identifiers. Default: ".</li> +<li><strong>identify (bool):</strong> if set to True all identifiers will be delimited by the corresponding +character.</li> +<li><strong>normalize (bool):</strong> if set to True all identifiers will lower cased</li> +<li><strong>string_escape (str):</strong> specifies a string escape character. Default: '.</li> +<li><strong>identifier_escape (str):</strong> specifies an identifier escape character. Default: ".</li> +<li><strong>pad (int):</strong> determines padding in a formatted string. Default: 2.</li> +<li><strong>indent (int):</strong> determines the size of indentation in a formatted string. Default: 4.</li> +<li><strong>unnest_column_only (bool):</strong> if true unnest table aliases are considered only as column aliases</li> +<li><strong>normalize_functions (str):</strong> normalize function names, "upper", "lower", or None +Default: "upper"</li> +<li><strong>alias_post_tablesample (bool):</strong> if the table alias comes after tablesample +Default: False</li> +<li><strong>unsupported_level (ErrorLevel):</strong> determines the generator's behavior when it encounters +unsupported expressions. Default ErrorLevel.WARN.</li> +<li><strong>null_ordering (str):</strong> Indicates the default null ordering method to use if not explicitly set. +Options are "nulls_are_small", "nulls_are_large", "nulls_are_last". +Default: "nulls_are_small"</li> +<li><strong>max_unsupported (int):</strong> Maximum number of unsupported messages to include in a raised UnsupportedError. +This is only relevant if unsupported_level is ErrorLevel.RAISE. +Default: 3</li> +<li><strong>leading_comma (bool):</strong> if the the comma is leading or trailing in select statements +Default: False</li> +<li><strong>max_text_width:</strong> The max number of characters in a segment before creating new lines in pretty mode. +The default is on the smaller end because the length only represents a segment and not the true +line length. +Default: 80</li> +<li><strong>comments:</strong> Whether or not to preserve comments in the output SQL code. +Default: True</li> +</ul> +</div> + + + <div class="inherited"> + <h5>Inherited Members</h5> + <dl> + <div><dt><a href="../generator.html#Generator">sqlglot.generator.Generator</a></dt> + <dd id="Python.Generator.__init__" class="function"><a href="../generator.html#Generator.__init__">Generator</a></dd> + <dd id="Python.Generator.generate" class="function"><a href="../generator.html#Generator.generate">generate</a></dd> + <dd id="Python.Generator.unsupported" class="function"><a href="../generator.html#Generator.unsupported">unsupported</a></dd> + <dd id="Python.Generator.sep" class="function"><a href="../generator.html#Generator.sep">sep</a></dd> + <dd id="Python.Generator.seg" class="function"><a href="../generator.html#Generator.seg">seg</a></dd> + <dd id="Python.Generator.pad_comment" class="function"><a href="../generator.html#Generator.pad_comment">pad_comment</a></dd> + <dd id="Python.Generator.maybe_comment" class="function"><a href="../generator.html#Generator.maybe_comment">maybe_comment</a></dd> + <dd id="Python.Generator.wrap" class="function"><a href="../generator.html#Generator.wrap">wrap</a></dd> + <dd id="Python.Generator.no_identify" class="function"><a href="../generator.html#Generator.no_identify">no_identify</a></dd> + <dd id="Python.Generator.normalize_func" class="function"><a href="../generator.html#Generator.normalize_func">normalize_func</a></dd> + <dd id="Python.Generator.indent" class="function"><a href="../generator.html#Generator.indent">indent</a></dd> + <dd id="Python.Generator.sql" class="function"><a href="../generator.html#Generator.sql">sql</a></dd> + <dd id="Python.Generator.uncache_sql" class="function"><a href="../generator.html#Generator.uncache_sql">uncache_sql</a></dd> + <dd id="Python.Generator.cache_sql" class="function"><a href="../generator.html#Generator.cache_sql">cache_sql</a></dd> + <dd id="Python.Generator.characterset_sql" class="function"><a href="../generator.html#Generator.characterset_sql">characterset_sql</a></dd> + <dd id="Python.Generator.column_sql" class="function"><a href="../generator.html#Generator.column_sql">column_sql</a></dd> + <dd id="Python.Generator.columndef_sql" class="function"><a href="../generator.html#Generator.columndef_sql">columndef_sql</a></dd> + <dd id="Python.Generator.columnconstraint_sql" class="function"><a href="../generator.html#Generator.columnconstraint_sql">columnconstraint_sql</a></dd> + <dd id="Python.Generator.autoincrementcolumnconstraint_sql" class="function"><a href="../generator.html#Generator.autoincrementcolumnconstraint_sql">autoincrementcolumnconstraint_sql</a></dd> + <dd id="Python.Generator.checkcolumnconstraint_sql" class="function"><a href="../generator.html#Generator.checkcolumnconstraint_sql">checkcolumnconstraint_sql</a></dd> + <dd id="Python.Generator.commentcolumnconstraint_sql" class="function"><a href="../generator.html#Generator.commentcolumnconstraint_sql">commentcolumnconstraint_sql</a></dd> + <dd id="Python.Generator.collatecolumnconstraint_sql" class="function"><a href="../generator.html#Generator.collatecolumnconstraint_sql">collatecolumnconstraint_sql</a></dd> + <dd id="Python.Generator.encodecolumnconstraint_sql" class="function"><a href="../generator.html#Generator.encodecolumnconstraint_sql">encodecolumnconstraint_sql</a></dd> + <dd id="Python.Generator.defaultcolumnconstraint_sql" class="function"><a href="../generator.html#Generator.defaultcolumnconstraint_sql">defaultcolumnconstraint_sql</a></dd> + <dd id="Python.Generator.generatedasidentitycolumnconstraint_sql" class="function"><a href="../generator.html#Generator.generatedasidentitycolumnconstraint_sql">generatedasidentitycolumnconstraint_sql</a></dd> + <dd id="Python.Generator.notnullcolumnconstraint_sql" class="function"><a href="../generator.html#Generator.notnullcolumnconstraint_sql">notnullcolumnconstraint_sql</a></dd> + <dd id="Python.Generator.primarykeycolumnconstraint_sql" class="function"><a href="../generator.html#Generator.primarykeycolumnconstraint_sql">primarykeycolumnconstraint_sql</a></dd> + <dd id="Python.Generator.uniquecolumnconstraint_sql" class="function"><a href="../generator.html#Generator.uniquecolumnconstraint_sql">uniquecolumnconstraint_sql</a></dd> + <dd id="Python.Generator.create_sql" class="function"><a href="../generator.html#Generator.create_sql">create_sql</a></dd> + <dd id="Python.Generator.describe_sql" class="function"><a href="../generator.html#Generator.describe_sql">describe_sql</a></dd> + <dd id="Python.Generator.prepend_ctes" class="function"><a href="../generator.html#Generator.prepend_ctes">prepend_ctes</a></dd> + <dd id="Python.Generator.with_sql" class="function"><a href="../generator.html#Generator.with_sql">with_sql</a></dd> + <dd id="Python.Generator.cte_sql" class="function"><a href="../generator.html#Generator.cte_sql">cte_sql</a></dd> + <dd id="Python.Generator.tablealias_sql" class="function"><a href="../generator.html#Generator.tablealias_sql">tablealias_sql</a></dd> + <dd id="Python.Generator.bitstring_sql" class="function"><a href="../generator.html#Generator.bitstring_sql">bitstring_sql</a></dd> + <dd id="Python.Generator.hexstring_sql" class="function"><a href="../generator.html#Generator.hexstring_sql">hexstring_sql</a></dd> + <dd id="Python.Generator.datatype_sql" class="function"><a href="../generator.html#Generator.datatype_sql">datatype_sql</a></dd> + <dd id="Python.Generator.directory_sql" class="function"><a href="../generator.html#Generator.directory_sql">directory_sql</a></dd> + <dd id="Python.Generator.delete_sql" class="function"><a href="../generator.html#Generator.delete_sql">delete_sql</a></dd> + <dd id="Python.Generator.drop_sql" class="function"><a href="../generator.html#Generator.drop_sql">drop_sql</a></dd> + <dd id="Python.Generator.except_sql" class="function"><a href="../generator.html#Generator.except_sql">except_sql</a></dd> + <dd id="Python.Generator.except_op" class="function"><a href="../generator.html#Generator.except_op">except_op</a></dd> + <dd id="Python.Generator.fetch_sql" class="function"><a href="../generator.html#Generator.fetch_sql">fetch_sql</a></dd> + <dd id="Python.Generator.filter_sql" class="function"><a href="../generator.html#Generator.filter_sql">filter_sql</a></dd> + <dd id="Python.Generator.hint_sql" class="function"><a href="../generator.html#Generator.hint_sql">hint_sql</a></dd> + <dd id="Python.Generator.index_sql" class="function"><a href="../generator.html#Generator.index_sql">index_sql</a></dd> + <dd id="Python.Generator.identifier_sql" class="function"><a href="../generator.html#Generator.identifier_sql">identifier_sql</a></dd> + <dd id="Python.Generator.national_sql" class="function"><a href="../generator.html#Generator.national_sql">national_sql</a></dd> + <dd id="Python.Generator.partition_sql" class="function"><a href="../generator.html#Generator.partition_sql">partition_sql</a></dd> + <dd id="Python.Generator.properties_sql" class="function"><a href="../generator.html#Generator.properties_sql">properties_sql</a></dd> + <dd id="Python.Generator.root_properties" class="function"><a href="../generator.html#Generator.root_properties">root_properties</a></dd> + <dd id="Python.Generator.properties" class="function"><a href="../generator.html#Generator.properties">properties</a></dd> + <dd id="Python.Generator.with_properties" class="function"><a href="../generator.html#Generator.with_properties">with_properties</a></dd> + <dd id="Python.Generator.locate_properties" class="function"><a href="../generator.html#Generator.locate_properties">locate_properties</a></dd> + <dd id="Python.Generator.property_sql" class="function"><a href="../generator.html#Generator.property_sql">property_sql</a></dd> + <dd id="Python.Generator.likeproperty_sql" class="function"><a href="../generator.html#Generator.likeproperty_sql">likeproperty_sql</a></dd> + <dd id="Python.Generator.fallbackproperty_sql" class="function"><a href="../generator.html#Generator.fallbackproperty_sql">fallbackproperty_sql</a></dd> + <dd id="Python.Generator.journalproperty_sql" class="function"><a href="../generator.html#Generator.journalproperty_sql">journalproperty_sql</a></dd> + <dd id="Python.Generator.freespaceproperty_sql" class="function"><a href="../generator.html#Generator.freespaceproperty_sql">freespaceproperty_sql</a></dd> + <dd id="Python.Generator.afterjournalproperty_sql" class="function"><a href="../generator.html#Generator.afterjournalproperty_sql">afterjournalproperty_sql</a></dd> + <dd id="Python.Generator.checksumproperty_sql" class="function"><a href="../generator.html#Generator.checksumproperty_sql">checksumproperty_sql</a></dd> + <dd id="Python.Generator.mergeblockratioproperty_sql" class="function"><a href="../generator.html#Generator.mergeblockratioproperty_sql">mergeblockratioproperty_sql</a></dd> + <dd id="Python.Generator.datablocksizeproperty_sql" class="function"><a href="../generator.html#Generator.datablocksizeproperty_sql">datablocksizeproperty_sql</a></dd> + <dd id="Python.Generator.blockcompressionproperty_sql" class="function"><a href="../generator.html#Generator.blockcompressionproperty_sql">blockcompressionproperty_sql</a></dd> + <dd id="Python.Generator.isolatedloadingproperty_sql" class="function"><a href="../generator.html#Generator.isolatedloadingproperty_sql">isolatedloadingproperty_sql</a></dd> + <dd id="Python.Generator.insert_sql" class="function"><a href="../generator.html#Generator.insert_sql">insert_sql</a></dd> + <dd id="Python.Generator.intersect_sql" class="function"><a href="../generator.html#Generator.intersect_sql">intersect_sql</a></dd> + <dd id="Python.Generator.intersect_op" class="function"><a href="../generator.html#Generator.intersect_op">intersect_op</a></dd> + <dd id="Python.Generator.introducer_sql" class="function"><a href="../generator.html#Generator.introducer_sql">introducer_sql</a></dd> + <dd id="Python.Generator.pseudotype_sql" class="function"><a href="../generator.html#Generator.pseudotype_sql">pseudotype_sql</a></dd> + <dd id="Python.Generator.rowformatdelimitedproperty_sql" class="function"><a href="../generator.html#Generator.rowformatdelimitedproperty_sql">rowformatdelimitedproperty_sql</a></dd> + <dd id="Python.Generator.table_sql" class="function"><a href="../generator.html#Generator.table_sql">table_sql</a></dd> + <dd id="Python.Generator.tablesample_sql" class="function"><a href="../generator.html#Generator.tablesample_sql">tablesample_sql</a></dd> + <dd id="Python.Generator.pivot_sql" class="function"><a href="../generator.html#Generator.pivot_sql">pivot_sql</a></dd> + <dd id="Python.Generator.tuple_sql" class="function"><a href="../generator.html#Generator.tuple_sql">tuple_sql</a></dd> + <dd id="Python.Generator.update_sql" class="function"><a href="../generator.html#Generator.update_sql">update_sql</a></dd> + <dd id="Python.Generator.values_sql" class="function"><a href="../generator.html#Generator.values_sql">values_sql</a></dd> + <dd id="Python.Generator.var_sql" class="function"><a href="../generator.html#Generator.var_sql">var_sql</a></dd> + <dd id="Python.Generator.into_sql" class="function"><a href="../generator.html#Generator.into_sql">into_sql</a></dd> + <dd id="Python.Generator.from_sql" class="function"><a href="../generator.html#Generator.from_sql">from_sql</a></dd> + <dd id="Python.Generator.group_sql" class="function"><a href="../generator.html#Generator.group_sql">group_sql</a></dd> + <dd id="Python.Generator.having_sql" class="function"><a href="../generator.html#Generator.having_sql">having_sql</a></dd> + <dd id="Python.Generator.join_sql" class="function"><a href="../generator.html#Generator.join_sql">join_sql</a></dd> + <dd id="Python.Generator.lambda_sql" class="function"><a href="../generator.html#Generator.lambda_sql">lambda_sql</a></dd> + <dd id="Python.Generator.lateral_sql" class="function"><a href="../generator.html#Generator.lateral_sql">lateral_sql</a></dd> + <dd id="Python.Generator.limit_sql" class="function"><a href="../generator.html#Generator.limit_sql">limit_sql</a></dd> + <dd id="Python.Generator.offset_sql" class="function"><a href="../generator.html#Generator.offset_sql">offset_sql</a></dd> + <dd id="Python.Generator.lock_sql" class="function"><a href="../generator.html#Generator.lock_sql">lock_sql</a></dd> + <dd id="Python.Generator.literal_sql" class="function"><a href="../generator.html#Generator.literal_sql">literal_sql</a></dd> + <dd id="Python.Generator.loaddata_sql" class="function"><a href="../generator.html#Generator.loaddata_sql">loaddata_sql</a></dd> + <dd id="Python.Generator.null_sql" class="function"><a href="../generator.html#Generator.null_sql">null_sql</a></dd> + <dd id="Python.Generator.boolean_sql" class="function"><a href="../generator.html#Generator.boolean_sql">boolean_sql</a></dd> + <dd id="Python.Generator.order_sql" class="function"><a href="../generator.html#Generator.order_sql">order_sql</a></dd> + <dd id="Python.Generator.cluster_sql" class="function"><a href="../generator.html#Generator.cluster_sql">cluster_sql</a></dd> + <dd id="Python.Generator.distribute_sql" class="function"><a href="../generator.html#Generator.distribute_sql">distribute_sql</a></dd> + <dd id="Python.Generator.sort_sql" class="function"><a href="../generator.html#Generator.sort_sql">sort_sql</a></dd> + <dd id="Python.Generator.ordered_sql" class="function"><a href="../generator.html#Generator.ordered_sql">ordered_sql</a></dd> + <dd id="Python.Generator.matchrecognize_sql" class="function"><a href="../generator.html#Generator.matchrecognize_sql">matchrecognize_sql</a></dd> + <dd id="Python.Generator.query_modifiers" class="function"><a href="../generator.html#Generator.query_modifiers">query_modifiers</a></dd> + <dd id="Python.Generator.select_sql" class="function"><a href="../generator.html#Generator.select_sql">select_sql</a></dd> + <dd id="Python.Generator.schema_sql" class="function"><a href="../generator.html#Generator.schema_sql">schema_sql</a></dd> + <dd id="Python.Generator.star_sql" class="function"><a href="../generator.html#Generator.star_sql">star_sql</a></dd> + <dd id="Python.Generator.structkwarg_sql" class="function"><a href="../generator.html#Generator.structkwarg_sql">structkwarg_sql</a></dd> + <dd id="Python.Generator.parameter_sql" class="function"><a href="../generator.html#Generator.parameter_sql">parameter_sql</a></dd> + <dd id="Python.Generator.sessionparameter_sql" class="function"><a href="../generator.html#Generator.sessionparameter_sql">sessionparameter_sql</a></dd> + <dd id="Python.Generator.placeholder_sql" class="function"><a href="../generator.html#Generator.placeholder_sql">placeholder_sql</a></dd> + <dd id="Python.Generator.subquery_sql" class="function"><a href="../generator.html#Generator.subquery_sql">subquery_sql</a></dd> + <dd id="Python.Generator.qualify_sql" class="function"><a href="../generator.html#Generator.qualify_sql">qualify_sql</a></dd> + <dd id="Python.Generator.union_sql" class="function"><a href="../generator.html#Generator.union_sql">union_sql</a></dd> + <dd id="Python.Generator.union_op" class="function"><a href="../generator.html#Generator.union_op">union_op</a></dd> + <dd id="Python.Generator.unnest_sql" class="function"><a href="../generator.html#Generator.unnest_sql">unnest_sql</a></dd> + <dd id="Python.Generator.where_sql" class="function"><a href="../generator.html#Generator.where_sql">where_sql</a></dd> + <dd id="Python.Generator.window_sql" class="function"><a href="../generator.html#Generator.window_sql">window_sql</a></dd> + <dd id="Python.Generator.partition_by_sql" class="function"><a href="../generator.html#Generator.partition_by_sql">partition_by_sql</a></dd> + <dd id="Python.Generator.window_spec_sql" class="function"><a href="../generator.html#Generator.window_spec_sql">window_spec_sql</a></dd> + <dd id="Python.Generator.withingroup_sql" class="function"><a href="../generator.html#Generator.withingroup_sql">withingroup_sql</a></dd> + <dd id="Python.Generator.between_sql" class="function"><a href="../generator.html#Generator.between_sql">between_sql</a></dd> + <dd id="Python.Generator.bracket_sql" class="function"><a href="../generator.html#Generator.bracket_sql">bracket_sql</a></dd> + <dd id="Python.Generator.all_sql" class="function"><a href="../generator.html#Generator.all_sql">all_sql</a></dd> + <dd id="Python.Generator.any_sql" class="function"><a href="../generator.html#Generator.any_sql">any_sql</a></dd> + <dd id="Python.Generator.exists_sql" class="function"><a href="../generator.html#Generator.exists_sql">exists_sql</a></dd> + <dd id="Python.Generator.case_sql" class="function"><a href="../generator.html#Generator.case_sql">case_sql</a></dd> + <dd id="Python.Generator.constraint_sql" class="function"><a href="../generator.html#Generator.constraint_sql">constraint_sql</a></dd> + <dd id="Python.Generator.extract_sql" class="function"><a href="../generator.html#Generator.extract_sql">extract_sql</a></dd> + <dd id="Python.Generator.trim_sql" class="function"><a href="../generator.html#Generator.trim_sql">trim_sql</a></dd> + <dd id="Python.Generator.concat_sql" class="function"><a href="../generator.html#Generator.concat_sql">concat_sql</a></dd> + <dd id="Python.Generator.check_sql" class="function"><a href="../generator.html#Generator.check_sql">check_sql</a></dd> + <dd id="Python.Generator.foreignkey_sql" class="function"><a href="../generator.html#Generator.foreignkey_sql">foreignkey_sql</a></dd> + <dd id="Python.Generator.primarykey_sql" class="function"><a href="../generator.html#Generator.primarykey_sql">primarykey_sql</a></dd> + <dd id="Python.Generator.unique_sql" class="function"><a href="../generator.html#Generator.unique_sql">unique_sql</a></dd> + <dd id="Python.Generator.if_sql" class="function"><a href="../generator.html#Generator.if_sql">if_sql</a></dd> + <dd id="Python.Generator.in_sql" class="function"><a href="../generator.html#Generator.in_sql">in_sql</a></dd> + <dd id="Python.Generator.in_unnest_op" class="function"><a href="../generator.html#Generator.in_unnest_op">in_unnest_op</a></dd> + <dd id="Python.Generator.interval_sql" class="function"><a href="../generator.html#Generator.interval_sql">interval_sql</a></dd> + <dd id="Python.Generator.return_sql" class="function"><a href="../generator.html#Generator.return_sql">return_sql</a></dd> + <dd id="Python.Generator.reference_sql" class="function"><a href="../generator.html#Generator.reference_sql">reference_sql</a></dd> + <dd id="Python.Generator.anonymous_sql" class="function"><a href="../generator.html#Generator.anonymous_sql">anonymous_sql</a></dd> + <dd id="Python.Generator.paren_sql" class="function"><a href="../generator.html#Generator.paren_sql">paren_sql</a></dd> + <dd id="Python.Generator.neg_sql" class="function"><a href="../generator.html#Generator.neg_sql">neg_sql</a></dd> + <dd id="Python.Generator.not_sql" class="function"><a href="../generator.html#Generator.not_sql">not_sql</a></dd> + <dd id="Python.Generator.alias_sql" class="function"><a href="../generator.html#Generator.alias_sql">alias_sql</a></dd> + <dd id="Python.Generator.aliases_sql" class="function"><a href="../generator.html#Generator.aliases_sql">aliases_sql</a></dd> + <dd id="Python.Generator.attimezone_sql" class="function"><a href="../generator.html#Generator.attimezone_sql">attimezone_sql</a></dd> + <dd id="Python.Generator.add_sql" class="function"><a href="../generator.html#Generator.add_sql">add_sql</a></dd> + <dd id="Python.Generator.and_sql" class="function"><a href="../generator.html#Generator.and_sql">and_sql</a></dd> + <dd id="Python.Generator.connector_sql" class="function"><a href="../generator.html#Generator.connector_sql">connector_sql</a></dd> + <dd id="Python.Generator.bitwiseand_sql" class="function"><a href="../generator.html#Generator.bitwiseand_sql">bitwiseand_sql</a></dd> + <dd id="Python.Generator.bitwiseleftshift_sql" class="function"><a href="../generator.html#Generator.bitwiseleftshift_sql">bitwiseleftshift_sql</a></dd> + <dd id="Python.Generator.bitwisenot_sql" class="function"><a href="../generator.html#Generator.bitwisenot_sql">bitwisenot_sql</a></dd> + <dd id="Python.Generator.bitwiseor_sql" class="function"><a href="../generator.html#Generator.bitwiseor_sql">bitwiseor_sql</a></dd> + <dd id="Python.Generator.bitwiserightshift_sql" class="function"><a href="../generator.html#Generator.bitwiserightshift_sql">bitwiserightshift_sql</a></dd> + <dd id="Python.Generator.bitwisexor_sql" class="function"><a 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id="Python.Generator.glob_sql" class="function"><a href="../generator.html#Generator.glob_sql">glob_sql</a></dd> + <dd id="Python.Generator.gt_sql" class="function"><a href="../generator.html#Generator.gt_sql">gt_sql</a></dd> + <dd id="Python.Generator.gte_sql" class="function"><a href="../generator.html#Generator.gte_sql">gte_sql</a></dd> + <dd id="Python.Generator.ilike_sql" class="function"><a href="../generator.html#Generator.ilike_sql">ilike_sql</a></dd> + <dd id="Python.Generator.is_sql" class="function"><a href="../generator.html#Generator.is_sql">is_sql</a></dd> + <dd id="Python.Generator.like_sql" class="function"><a href="../generator.html#Generator.like_sql">like_sql</a></dd> + <dd id="Python.Generator.similarto_sql" class="function"><a href="../generator.html#Generator.similarto_sql">similarto_sql</a></dd> + <dd id="Python.Generator.lt_sql" class="function"><a href="../generator.html#Generator.lt_sql">lt_sql</a></dd> + <dd id="Python.Generator.lte_sql" class="function"><a 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class="function"><a href="../generator.html#Generator.expressions">expressions</a></dd> + <dd id="Python.Generator.op_expressions" class="function"><a href="../generator.html#Generator.op_expressions">op_expressions</a></dd> + <dd id="Python.Generator.naked_property" class="function"><a href="../generator.html#Generator.naked_property">naked_property</a></dd> + <dd id="Python.Generator.set_operation" class="function"><a href="../generator.html#Generator.set_operation">set_operation</a></dd> + <dd id="Python.Generator.tag_sql" class="function"><a href="../generator.html#Generator.tag_sql">tag_sql</a></dd> + <dd id="Python.Generator.token_sql" class="function"><a href="../generator.html#Generator.token_sql">token_sql</a></dd> + <dd id="Python.Generator.userdefinedfunction_sql" class="function"><a href="../generator.html#Generator.userdefinedfunction_sql">userdefinedfunction_sql</a></dd> + <dd id="Python.Generator.userdefinedfunctionkwarg_sql" class="function"><a 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