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Diffstat (limited to 'docs/sqlglot/optimizer/qualify_columns.html')
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1 files changed, 222 insertions, 189 deletions
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-225,7 +225,7 @@ </span><span id="L-146"><a href="#L-146"><span class="linenos">146</span></a> </span><span id="L-147"><a href="#L-147"><span class="linenos">147</span></a> <span class="c1"># Source columns get priority over select aliases</span> </span><span id="L-148"><a href="#L-148"><span class="linenos">148</span></a> <span class="k">if</span> <span class="n">table</span><span class="p">:</span> -</span><span id="L-149"><a href="#L-149"><span class="linenos">149</span></a> <span class="n">node</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"table"</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="n">table</span><span class="p">))</span> +</span><span id="L-149"><a href="#L-149"><span class="linenos">149</span></a> <span class="n">node</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"table"</span><span class="p">,</span> <span class="n">table</span><span class="p">)</span> </span><span id="L-150"><a href="#L-150"><span class="linenos">150</span></a> <span class="k">return</span> <span class="n">node</span> </span><span id="L-151"><a href="#L-151"><span class="linenos">151</span></a> </span><span id="L-152"><a href="#L-152"><span class="linenos">152</span></a> <span class="n">selects</span> <span class="o">=</span> <span class="p">{</span><span class="n">s</span><span class="o">.</span><span class="n">alias_or_name</span><span class="p">:</span> <span class="n">s</span> <span class="k">for</span> <span class="n">s</span> <span class="ow">in</span> <span class="n">scope</span><span class="o">.</span><span class="n">selects</span><span class="p">}</span> @@ -291,7 +291,7 @@ </span><span id="L-212"><a href="#L-212"><span class="linenos">212</span></a> </span><span id="L-213"><a href="#L-213"><span class="linenos">213</span></a> <span class="c1"># column_table can be a '' because bigquery unnest has no table alias</span> </span><span id="L-214"><a href="#L-214"><span class="linenos">214</span></a> <span class="k">if</span> <span class="n">column_table</span><span class="p">:</span> -</span><span id="L-215"><a href="#L-215"><span class="linenos">215</span></a> <span class="n">column</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"table"</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="n">column_table</span><span class="p">))</span> +</span><span id="L-215"><a href="#L-215"><span class="linenos">215</span></a> <span class="n">column</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"table"</span><span class="p">,</span> <span class="n">column_table</span><span class="p">)</span> </span><span id="L-216"><a href="#L-216"><span class="linenos">216</span></a> </span><span id="L-217"><a href="#L-217"><span class="linenos">217</span></a> <span class="n">columns_missing_from_scope</span> <span class="o">=</span> <span class="p">[]</span> </span><span id="L-218"><a href="#L-218"><span class="linenos">218</span></a> <span class="c1"># Determine whether each reference in the order by clause is to a column or an alias.</span> @@ -318,7 +318,7 @@ </span><span id="L-239"><a href="#L-239"><span class="linenos">239</span></a> <span class="n">column_table</span> <span class="o">=</span> <span class="n">resolver</span><span class="o">.</span><span class="n">get_table</span><span class="p">(</span><span class="n">column</span><span class="o">.</span><span class="n">name</span><span class="p">)</span> </span><span id="L-240"><a href="#L-240"><span class="linenos">240</span></a> </span><span id="L-241"><a href="#L-241"><span class="linenos">241</span></a> <span class="k">if</span> <span class="n">column_table</span><span class="p">:</span> -</span><span id="L-242"><a href="#L-242"><span class="linenos">242</span></a> <span class="n">column</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"table"</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="n">column_table</span><span class="p">))</span> +</span><span id="L-242"><a href="#L-242"><span class="linenos">242</span></a> <span class="n">column</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"table"</span><span class="p">,</span> <span class="n">column_table</span><span class="p">)</span> </span><span id="L-243"><a href="#L-243"><span class="linenos">243</span></a> </span><span id="L-244"><a href="#L-244"><span class="linenos">244</span></a> </span><span id="L-245"><a href="#L-245"><span class="linenos">245</span></a><span class="k">def</span> <span class="nf">_expand_stars</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="n">resolver</span><span class="p">):</span> @@ -419,7 +419,7 @@ </span><span id="L-340"><a href="#L-340"><span class="linenos">340</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span> <span class="o">=</span> <span class="kc">None</span> </span><span id="L-341"><a href="#L-341"><span class="linenos">341</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> <span class="o">=</span> <span class="kc">None</span> </span><span id="L-342"><a href="#L-342"><span class="linenos">342</span></a> -</span><span id="L-343"><a href="#L-343"><span class="linenos">343</span></a> <span class="k">def</span> <span class="nf">get_table</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">column_name</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="nb">str</span><span class="p">]:</span> +</span><span id="L-343"><a href="#L-343"><span class="linenos">343</span></a> <span class="k">def</span> <span class="nf">get_table</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">column_name</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">Identifier</span><span class="p">]:</span> </span><span id="L-344"><a href="#L-344"><span class="linenos">344</span></a><span class="w"> </span><span class="sd">"""</span> </span><span id="L-345"><a href="#L-345"><span class="linenos">345</span></a><span class="sd"> Get the table for a column name.</span> </span><span id="L-346"><a href="#L-346"><span class="linenos">346</span></a> @@ -433,97 +433,108 @@ </span><span id="L-354"><a href="#L-354"><span class="linenos">354</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_get_all_source_columns</span><span class="p">()</span> </span><span id="L-355"><a href="#L-355"><span class="linenos">355</span></a> <span class="p">)</span> </span><span id="L-356"><a href="#L-356"><span class="linenos">356</span></a> -</span><span id="L-357"><a href="#L-357"><span class="linenos">357</span></a> <span class="n">table</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">column_name</span><span class="p">)</span> +</span><span id="L-357"><a href="#L-357"><span class="linenos">357</span></a> <span class="n">table_name</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">column_name</span><span class="p">)</span> </span><span id="L-358"><a href="#L-358"><span class="linenos">358</span></a> -</span><span id="L-359"><a href="#L-359"><span class="linenos">359</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">table</span><span class="p">:</span> +</span><span id="L-359"><a href="#L-359"><span class="linenos">359</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">table_name</span><span class="p">:</span> </span><span id="L-360"><a href="#L-360"><span class="linenos">360</span></a> <span class="n">sources_without_schema</span> <span class="o">=</span> <span class="nb">tuple</span><span class="p">(</span> </span><span id="L-361"><a href="#L-361"><span class="linenos">361</span></a> <span class="n">source</span> </span><span id="L-362"><a href="#L-362"><span class="linenos">362</span></a> <span class="k">for</span> <span class="n">source</span><span class="p">,</span> <span class="n">columns</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_all_source_columns</span><span class="p">()</span><span class="o">.</span><span class="n">items</span><span class="p">()</span> </span><span id="L-363"><a href="#L-363"><span class="linenos">363</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">columns</span> <span class="ow">or</span> <span class="s2">"*"</span> <span class="ow">in</span> <span class="n">columns</span> </span><span id="L-364"><a href="#L-364"><span class="linenos">364</span></a> <span class="p">)</span> </span><span id="L-365"><a href="#L-365"><span class="linenos">365</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">sources_without_schema</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span> -</span><span id="L-366"><a href="#L-366"><span class="linenos">366</span></a> <span class="k">return</span> <span class="n">sources_without_schema</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> +</span><span id="L-366"><a href="#L-366"><span class="linenos">366</span></a> <span class="n">table_name</span> <span class="o">=</span> <span class="n">sources_without_schema</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> </span><span id="L-367"><a href="#L-367"><span class="linenos">367</span></a> -</span><span id="L-368"><a href="#L-368"><span class="linenos">368</span></a> <span class="k">return</span> <span class="n">table</span> -</span><span id="L-369"><a href="#L-369"><span class="linenos">369</span></a> -</span><span id="L-370"><a href="#L-370"><span class="linenos">370</span></a> <span class="nd">@property</span> -</span><span id="L-371"><a href="#L-371"><span class="linenos">371</span></a> <span class="k">def</span> <span class="nf">all_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> -</span><span id="L-372"><a href="#L-372"><span class="linenos">372</span></a><span class="w"> </span><span class="sd">"""All available columns of all sources in this scope"""</span> -</span><span id="L-373"><a href="#L-373"><span class="linenos">373</span></a> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> -</span><span id="L-374"><a href="#L-374"><span class="linenos">374</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> <span class="o">=</span> <span class="p">{</span> -</span><span id="L-375"><a href="#L-375"><span class="linenos">375</span></a> <span class="n">column</span> <span class="k">for</span> <span class="n">columns</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_all_source_columns</span><span class="p">()</span><span class="o">.</span><span class="n">values</span><span class="p">()</span> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">columns</span> -</span><span id="L-376"><a href="#L-376"><span class="linenos">376</span></a> <span class="p">}</span> -</span><span id="L-377"><a href="#L-377"><span class="linenos">377</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> -</span><span id="L-378"><a href="#L-378"><span class="linenos">378</span></a> -</span><span id="L-379"><a href="#L-379"><span class="linenos">379</span></a> <span class="k">def</span> <span class="nf">get_source_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">only_visible</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span> -</span><span id="L-380"><a href="#L-380"><span class="linenos">380</span></a><span class="w"> </span><span class="sd">"""Resolve the source columns for a given source `name`"""</span> -</span><span id="L-381"><a href="#L-381"><span class="linenos">381</span></a> <span class="k">if</span> <span class="n">name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">:</span> -</span><span id="L-382"><a href="#L-382"><span class="linenos">382</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Unknown table: </span><span class="si">{</span><span class="n">name</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> -</span><span id="L-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="n">source</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">[</span><span class="n">name</span><span class="p">]</span> -</span><span id="L-385"><a href="#L-385"><span class="linenos">385</span></a> -</span><span id="L-386"><a href="#L-386"><span class="linenos">386</span></a> <span class="c1"># If referencing a table, return the columns from the schema</span> -</span><span id="L-387"><a href="#L-387"><span class="linenos">387</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span><span class="p">):</span> -</span><span id="L-388"><a href="#L-388"><span class="linenos">388</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">schema</span><span class="o">.</span><span class="n">column_names</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">only_visible</span><span class="p">)</span> +</span><span id="L-368"><a href="#L-368"><span class="linenos">368</span></a> <span class="k">if</span> <span class="n">table_name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="p">:</span> +</span><span id="L-369"><a href="#L-369"><span class="linenos">369</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="n">table_name</span><span class="p">)</span> +</span><span id="L-370"><a href="#L-370"><span class="linenos">370</span></a> +</span><span id="L-371"><a href="#L-371"><span class="linenos">371</span></a> <span class="n">node</span><span class="p">,</span> <span class="n">_</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">table_name</span><span class="p">)</span> +</span><span id="L-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">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Subqueryable</span><span class="p">):</span> +</span><span id="L-374"><a href="#L-374"><span class="linenos">374</span></a> <span class="k">while</span> <span class="n">node</span> <span class="ow">and</span> <span class="n">node</span><span class="o">.</span><span class="n">alias</span> <span class="o">!=</span> <span class="n">table_name</span><span class="p">:</span> +</span><span id="L-375"><a href="#L-375"><span class="linenos">375</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">node</span><span class="o">.</span><span class="n">parent</span> +</span><span id="L-376"><a href="#L-376"><span class="linenos">376</span></a> <span class="n">node_alias</span> <span class="o">=</span> <span class="n">node</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"alias"</span><span class="p">)</span> +</span><span id="L-377"><a href="#L-377"><span class="linenos">377</span></a> <span class="k">if</span> <span class="n">node_alias</span><span class="p">:</span> +</span><span id="L-378"><a href="#L-378"><span class="linenos">378</span></a> <span class="k">return</span> <span class="n">node_alias</span><span class="o">.</span><span class="n">this</span> +</span><span id="L-379"><a href="#L-379"><span class="linenos">379</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="n">table_name</span><span class="p">)</span> +</span><span id="L-380"><a href="#L-380"><span class="linenos">380</span></a> +</span><span id="L-381"><a href="#L-381"><span class="linenos">381</span></a> <span class="nd">@property</span> +</span><span id="L-382"><a href="#L-382"><span class="linenos">382</span></a> <span class="k">def</span> <span class="nf">all_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> +</span><span id="L-383"><a href="#L-383"><span class="linenos">383</span></a><span class="w"> </span><span class="sd">"""All available columns of all sources in this scope"""</span> +</span><span id="L-384"><a href="#L-384"><span class="linenos">384</span></a> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> +</span><span id="L-385"><a href="#L-385"><span class="linenos">385</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> <span class="o">=</span> <span class="p">{</span> +</span><span id="L-386"><a href="#L-386"><span class="linenos">386</span></a> <span class="n">column</span> <span class="k">for</span> <span class="n">columns</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_all_source_columns</span><span class="p">()</span><span class="o">.</span><span class="n">values</span><span class="p">()</span> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">columns</span> +</span><span id="L-387"><a href="#L-387"><span class="linenos">387</span></a> <span class="p">}</span> +</span><span id="L-388"><a href="#L-388"><span class="linenos">388</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> </span><span id="L-389"><a href="#L-389"><span class="linenos">389</span></a> -</span><span id="L-390"><a href="#L-390"><span class="linenos">390</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">Scope</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="o">.</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Values</span><span class="p">):</span> -</span><span id="L-391"><a href="#L-391"><span class="linenos">391</span></a> <span class="k">return</span> <span class="n">source</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">alias_column_names</span> -</span><span id="L-392"><a href="#L-392"><span class="linenos">392</span></a> -</span><span id="L-393"><a href="#L-393"><span class="linenos">393</span></a> <span class="c1"># Otherwise, if referencing another scope, return that scope's named selects</span> -</span><span id="L-394"><a href="#L-394"><span class="linenos">394</span></a> <span class="k">return</span> <span class="n">source</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">named_selects</span> -</span><span id="L-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 class="k">def</span> <span class="nf">_get_all_source_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> -</span><span id="L-397"><a href="#L-397"><span class="linenos">397</span></a> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> -</span><span id="L-398"><a href="#L-398"><span class="linenos">398</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span> <span class="o">=</span> <span class="p">{</span> -</span><span id="L-399"><a href="#L-399"><span class="linenos">399</span></a> <span class="n">k</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_source_columns</span><span class="p">(</span><span class="n">k</span><span class="p">)</span> -</span><span id="L-400"><a href="#L-400"><span class="linenos">400</span></a> <span class="k">for</span> <span class="n">k</span> <span class="ow">in</span> <span class="n">itertools</span><span class="o">.</span><span class="n">chain</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">lateral_sources</span><span class="p">)</span> -</span><span id="L-401"><a href="#L-401"><span class="linenos">401</span></a> <span class="p">}</span> -</span><span id="L-402"><a href="#L-402"><span class="linenos">402</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span> +</span><span id="L-390"><a href="#L-390"><span class="linenos">390</span></a> <span class="k">def</span> <span class="nf">get_source_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">only_visible</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span> +</span><span id="L-391"><a href="#L-391"><span class="linenos">391</span></a><span class="w"> </span><span class="sd">"""Resolve the source columns for a given source `name`"""</span> +</span><span id="L-392"><a href="#L-392"><span class="linenos">392</span></a> <span class="k">if</span> <span class="n">name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">:</span> +</span><span id="L-393"><a href="#L-393"><span class="linenos">393</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Unknown table: </span><span class="si">{</span><span class="n">name</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> +</span><span id="L-394"><a href="#L-394"><span class="linenos">394</span></a> +</span><span id="L-395"><a href="#L-395"><span class="linenos">395</span></a> <span class="n">source</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">[</span><span class="n">name</span><span class="p">]</span> +</span><span id="L-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="c1"># If referencing a table, return the columns from the schema</span> +</span><span id="L-398"><a href="#L-398"><span class="linenos">398</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span><span class="p">):</span> +</span><span id="L-399"><a href="#L-399"><span class="linenos">399</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">schema</span><span class="o">.</span><span class="n">column_names</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">only_visible</span><span class="p">)</span> +</span><span id="L-400"><a href="#L-400"><span class="linenos">400</span></a> +</span><span id="L-401"><a href="#L-401"><span class="linenos">401</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">Scope</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="o">.</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Values</span><span class="p">):</span> +</span><span id="L-402"><a href="#L-402"><span class="linenos">402</span></a> <span class="k">return</span> <span class="n">source</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">alias_column_names</span> </span><span id="L-403"><a href="#L-403"><span class="linenos">403</span></a> -</span><span id="L-404"><a href="#L-404"><span class="linenos">404</span></a> <span class="k">def</span> <span class="nf">_get_unambiguous_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">source_columns</span><span class="p">):</span> -</span><span id="L-405"><a href="#L-405"><span class="linenos">405</span></a><span class="w"> </span><span class="sd">"""</span> -</span><span id="L-406"><a href="#L-406"><span class="linenos">406</span></a><span class="sd"> Find all the unambiguous columns in sources.</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 class="sd"> Args:</span> -</span><span id="L-409"><a href="#L-409"><span class="linenos">409</span></a><span class="sd"> source_columns (dict): Mapping of names to source columns</span> -</span><span id="L-410"><a href="#L-410"><span class="linenos">410</span></a><span class="sd"> Returns:</span> -</span><span id="L-411"><a href="#L-411"><span class="linenos">411</span></a><span class="sd"> dict: Mapping of column name to source name</span> -</span><span id="L-412"><a href="#L-412"><span class="linenos">412</span></a><span class="sd"> """</span> -</span><span id="L-413"><a href="#L-413"><span class="linenos">413</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">source_columns</span><span class="p">:</span> -</span><span id="L-414"><a href="#L-414"><span class="linenos">414</span></a> <span class="k">return</span> <span class="p">{}</span> -</span><span id="L-415"><a href="#L-415"><span class="linenos">415</span></a> -</span><span id="L-416"><a href="#L-416"><span class="linenos">416</span></a> <span class="n">source_columns</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">source_columns</span><span class="o">.</span><span class="n">items</span><span class="p">())</span> -</span><span id="L-417"><a href="#L-417"><span class="linenos">417</span></a> -</span><span id="L-418"><a href="#L-418"><span class="linenos">418</span></a> <span class="n">first_table</span><span class="p">,</span> <span class="n">first_columns</span> <span class="o">=</span> <span class="n">source_columns</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> -</span><span id="L-419"><a href="#L-419"><span class="linenos">419</span></a> <span class="n">unambiguous_columns</span> <span class="o">=</span> <span class="p">{</span><span class="n">col</span><span class="p">:</span> <span class="n">first_table</span> <span class="k">for</span> <span class="n">col</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_find_unique_columns</span><span class="p">(</span><span class="n">first_columns</span><span class="p">)}</span> -</span><span id="L-420"><a href="#L-420"><span class="linenos">420</span></a> <span class="n">all_columns</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">unambiguous_columns</span><span class="p">)</span> -</span><span id="L-421"><a href="#L-421"><span class="linenos">421</span></a> -</span><span id="L-422"><a href="#L-422"><span class="linenos">422</span></a> <span class="k">for</span> <span class="n">table</span><span class="p">,</span> <span class="n">columns</span> <span class="ow">in</span> <span class="n">source_columns</span><span class="p">[</span><span class="mi">1</span><span class="p">:]:</span> -</span><span id="L-423"><a href="#L-423"><span class="linenos">423</span></a> <span class="n">unique</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_find_unique_columns</span><span class="p">(</span><span class="n">columns</span><span class="p">)</span> -</span><span id="L-424"><a href="#L-424"><span class="linenos">424</span></a> <span class="n">ambiguous</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">all_columns</span><span class="p">)</span><span class="o">.</span><span class="n">intersection</span><span class="p">(</span><span class="n">unique</span><span class="p">)</span> -</span><span id="L-425"><a href="#L-425"><span class="linenos">425</span></a> <span class="n">all_columns</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">columns</span><span class="p">)</span> -</span><span id="L-426"><a href="#L-426"><span class="linenos">426</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">ambiguous</span><span class="p">:</span> -</span><span id="L-427"><a href="#L-427"><span class="linenos">427</span></a> <span class="n">unambiguous_columns</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="n">column</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span> -</span><span id="L-428"><a href="#L-428"><span class="linenos">428</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">unique</span><span class="o">.</span><span class="n">difference</span><span class="p">(</span><span class="n">ambiguous</span><span class="p">):</span> -</span><span id="L-429"><a href="#L-429"><span class="linenos">429</span></a> <span class="n">unambiguous_columns</span><span class="p">[</span><span class="n">column</span><span class="p">]</span> <span class="o">=</span> <span class="n">table</span> -</span><span id="L-430"><a href="#L-430"><span class="linenos">430</span></a> -</span><span id="L-431"><a href="#L-431"><span class="linenos">431</span></a> <span class="k">return</span> <span class="n">unambiguous_columns</span> +</span><span id="L-404"><a href="#L-404"><span class="linenos">404</span></a> <span class="c1"># Otherwise, if referencing another scope, return that scope's named selects</span> +</span><span id="L-405"><a href="#L-405"><span class="linenos">405</span></a> <span class="k">return</span> <span class="n">source</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">named_selects</span> +</span><span id="L-406"><a href="#L-406"><span class="linenos">406</span></a> +</span><span id="L-407"><a href="#L-407"><span class="linenos">407</span></a> <span class="k">def</span> <span class="nf">_get_all_source_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> +</span><span id="L-408"><a href="#L-408"><span class="linenos">408</span></a> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> +</span><span id="L-409"><a href="#L-409"><span class="linenos">409</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span> <span class="o">=</span> <span class="p">{</span> +</span><span id="L-410"><a href="#L-410"><span class="linenos">410</span></a> <span class="n">k</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_source_columns</span><span class="p">(</span><span class="n">k</span><span class="p">)</span> +</span><span id="L-411"><a href="#L-411"><span class="linenos">411</span></a> <span class="k">for</span> <span class="n">k</span> <span class="ow">in</span> <span class="n">itertools</span><span class="o">.</span><span class="n">chain</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">lateral_sources</span><span class="p">)</span> +</span><span id="L-412"><a href="#L-412"><span class="linenos">412</span></a> <span class="p">}</span> +</span><span id="L-413"><a href="#L-413"><span class="linenos">413</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span> +</span><span id="L-414"><a href="#L-414"><span class="linenos">414</span></a> +</span><span id="L-415"><a href="#L-415"><span class="linenos">415</span></a> <span class="k">def</span> <span class="nf">_get_unambiguous_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">source_columns</span><span class="p">):</span> +</span><span id="L-416"><a href="#L-416"><span class="linenos">416</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="L-417"><a href="#L-417"><span class="linenos">417</span></a><span class="sd"> Find all the unambiguous columns in sources.</span> +</span><span id="L-418"><a href="#L-418"><span class="linenos">418</span></a> +</span><span id="L-419"><a href="#L-419"><span class="linenos">419</span></a><span class="sd"> Args:</span> +</span><span id="L-420"><a href="#L-420"><span class="linenos">420</span></a><span class="sd"> source_columns (dict): Mapping of names to source columns</span> +</span><span id="L-421"><a href="#L-421"><span class="linenos">421</span></a><span class="sd"> Returns:</span> +</span><span id="L-422"><a href="#L-422"><span class="linenos">422</span></a><span class="sd"> dict: Mapping of column name to source name</span> +</span><span id="L-423"><a href="#L-423"><span class="linenos">423</span></a><span class="sd"> """</span> +</span><span id="L-424"><a href="#L-424"><span class="linenos">424</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">source_columns</span><span class="p">:</span> +</span><span id="L-425"><a href="#L-425"><span class="linenos">425</span></a> <span class="k">return</span> <span class="p">{}</span> +</span><span id="L-426"><a href="#L-426"><span class="linenos">426</span></a> +</span><span id="L-427"><a href="#L-427"><span class="linenos">427</span></a> <span class="n">source_columns</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">source_columns</span><span class="o">.</span><span class="n">items</span><span class="p">())</span> +</span><span id="L-428"><a href="#L-428"><span class="linenos">428</span></a> +</span><span id="L-429"><a href="#L-429"><span class="linenos">429</span></a> <span class="n">first_table</span><span class="p">,</span> <span class="n">first_columns</span> <span class="o">=</span> <span class="n">source_columns</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> +</span><span id="L-430"><a href="#L-430"><span class="linenos">430</span></a> <span class="n">unambiguous_columns</span> <span class="o">=</span> <span class="p">{</span><span class="n">col</span><span class="p">:</span> <span class="n">first_table</span> <span class="k">for</span> <span class="n">col</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_find_unique_columns</span><span class="p">(</span><span class="n">first_columns</span><span class="p">)}</span> +</span><span id="L-431"><a href="#L-431"><span class="linenos">431</span></a> <span class="n">all_columns</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">unambiguous_columns</span><span class="p">)</span> </span><span id="L-432"><a href="#L-432"><span class="linenos">432</span></a> -</span><span id="L-433"><a href="#L-433"><span class="linenos">433</span></a> <span class="nd">@staticmethod</span> -</span><span id="L-434"><a href="#L-434"><span class="linenos">434</span></a> <span class="k">def</span> <span class="nf">_find_unique_columns</span><span class="p">(</span><span class="n">columns</span><span class="p">):</span> -</span><span id="L-435"><a href="#L-435"><span class="linenos">435</span></a><span class="w"> </span><span class="sd">"""</span> -</span><span id="L-436"><a href="#L-436"><span class="linenos">436</span></a><span class="sd"> Find the unique columns in a list of columns.</span> -</span><span id="L-437"><a href="#L-437"><span class="linenos">437</span></a> -</span><span id="L-438"><a href="#L-438"><span class="linenos">438</span></a><span class="sd"> Example:</span> -</span><span id="L-439"><a href="#L-439"><span class="linenos">439</span></a><span class="sd"> >>> sorted(Resolver._find_unique_columns(["a", "b", "b", "c"]))</span> -</span><span id="L-440"><a href="#L-440"><span class="linenos">440</span></a><span class="sd"> ['a', 'c']</span> +</span><span id="L-433"><a href="#L-433"><span class="linenos">433</span></a> <span class="k">for</span> <span class="n">table</span><span class="p">,</span> <span class="n">columns</span> <span class="ow">in</span> <span class="n">source_columns</span><span class="p">[</span><span class="mi">1</span><span class="p">:]:</span> +</span><span id="L-434"><a href="#L-434"><span class="linenos">434</span></a> <span class="n">unique</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_find_unique_columns</span><span class="p">(</span><span class="n">columns</span><span class="p">)</span> +</span><span id="L-435"><a href="#L-435"><span class="linenos">435</span></a> <span class="n">ambiguous</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">all_columns</span><span class="p">)</span><span class="o">.</span><span class="n">intersection</span><span class="p">(</span><span class="n">unique</span><span class="p">)</span> +</span><span id="L-436"><a href="#L-436"><span class="linenos">436</span></a> <span class="n">all_columns</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">columns</span><span class="p">)</span> +</span><span id="L-437"><a href="#L-437"><span class="linenos">437</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">ambiguous</span><span class="p">:</span> +</span><span id="L-438"><a href="#L-438"><span class="linenos">438</span></a> <span class="n">unambiguous_columns</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="n">column</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span> +</span><span id="L-439"><a href="#L-439"><span class="linenos">439</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">unique</span><span class="o">.</span><span class="n">difference</span><span class="p">(</span><span class="n">ambiguous</span><span class="p">):</span> +</span><span id="L-440"><a href="#L-440"><span class="linenos">440</span></a> <span class="n">unambiguous_columns</span><span class="p">[</span><span class="n">column</span><span class="p">]</span> <span class="o">=</span> <span class="n">table</span> </span><span id="L-441"><a href="#L-441"><span class="linenos">441</span></a> -</span><span id="L-442"><a href="#L-442"><span class="linenos">442</span></a><span class="sd"> This is necessary because duplicate column names are ambiguous.</span> -</span><span id="L-443"><a href="#L-443"><span class="linenos">443</span></a><span class="sd"> """</span> -</span><span id="L-444"><a href="#L-444"><span class="linenos">444</span></a> <span class="n">counts</span> <span class="o">=</span> <span class="p">{}</span> -</span><span id="L-445"><a href="#L-445"><span class="linenos">445</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">columns</span><span class="p">:</span> -</span><span id="L-446"><a href="#L-446"><span class="linenos">446</span></a> <span class="n">counts</span><span class="p">[</span><span class="n">column</span><span class="p">]</span> <span class="o">=</span> <span class="n">counts</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">column</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span> <span class="o">+</span> <span class="mi">1</span> -</span><span id="L-447"><a href="#L-447"><span class="linenos">447</span></a> <span class="k">return</span> <span class="p">{</span><span class="n">column</span> <span class="k">for</span> <span class="n">column</span><span class="p">,</span> <span class="n">count</span> <span class="ow">in</span> <span class="n">counts</span><span class="o">.</span><span class="n">items</span><span class="p">()</span> <span class="k">if</span> <span class="n">count</span> <span class="o">==</span> <span class="mi">1</span><span class="p">}</span> +</span><span id="L-442"><a href="#L-442"><span class="linenos">442</span></a> <span class="k">return</span> <span class="n">unambiguous_columns</span> +</span><span id="L-443"><a href="#L-443"><span class="linenos">443</span></a> +</span><span id="L-444"><a href="#L-444"><span class="linenos">444</span></a> <span class="nd">@staticmethod</span> +</span><span id="L-445"><a href="#L-445"><span class="linenos">445</span></a> <span class="k">def</span> <span class="nf">_find_unique_columns</span><span class="p">(</span><span class="n">columns</span><span class="p">):</span> +</span><span id="L-446"><a href="#L-446"><span class="linenos">446</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="L-447"><a href="#L-447"><span class="linenos">447</span></a><span class="sd"> Find the unique columns in a list of columns.</span> +</span><span id="L-448"><a href="#L-448"><span class="linenos">448</span></a> +</span><span id="L-449"><a href="#L-449"><span class="linenos">449</span></a><span class="sd"> Example:</span> +</span><span id="L-450"><a href="#L-450"><span class="linenos">450</span></a><span class="sd"> >>> sorted(Resolver._find_unique_columns(["a", "b", "b", "c"]))</span> +</span><span id="L-451"><a href="#L-451"><span class="linenos">451</span></a><span class="sd"> ['a', 'c']</span> +</span><span id="L-452"><a href="#L-452"><span class="linenos">452</span></a> +</span><span id="L-453"><a href="#L-453"><span class="linenos">453</span></a><span class="sd"> This is necessary because duplicate column names are ambiguous.</span> +</span><span id="L-454"><a href="#L-454"><span class="linenos">454</span></a><span class="sd"> """</span> +</span><span id="L-455"><a href="#L-455"><span class="linenos">455</span></a> <span class="n">counts</span> <span class="o">=</span> <span class="p">{}</span> +</span><span id="L-456"><a href="#L-456"><span class="linenos">456</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">columns</span><span class="p">:</span> +</span><span id="L-457"><a href="#L-457"><span class="linenos">457</span></a> <span class="n">counts</span><span class="p">[</span><span class="n">column</span><span class="p">]</span> <span class="o">=</span> <span class="n">counts</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">column</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span> <span class="o">+</span> <span class="mi">1</span> +</span><span id="L-458"><a href="#L-458"><span class="linenos">458</span></a> <span class="k">return</span> <span class="p">{</span><span class="n">column</span> <span class="k">for</span> <span class="n">column</span><span class="p">,</span> <span class="n">count</span> <span class="ow">in</span> <span class="n">counts</span><span class="o">.</span><span class="n">items</span><span class="p">()</span> <span class="k">if</span> <span class="n">count</span> <span class="o">==</span> <span class="mi">1</span><span class="p">}</span> </span></pre></div> @@ -661,7 +672,7 @@ </span><span id="Resolver-341"><a href="#Resolver-341"><span class="linenos">341</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span> <span class="o">=</span> <span class="kc">None</span> </span><span id="Resolver-342"><a href="#Resolver-342"><span class="linenos">342</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> <span class="o">=</span> <span class="kc">None</span> </span><span id="Resolver-343"><a href="#Resolver-343"><span class="linenos">343</span></a> -</span><span id="Resolver-344"><a href="#Resolver-344"><span class="linenos">344</span></a> <span class="k">def</span> <span class="nf">get_table</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">column_name</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="nb">str</span><span class="p">]:</span> +</span><span id="Resolver-344"><a href="#Resolver-344"><span class="linenos">344</span></a> <span class="k">def</span> <span class="nf">get_table</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">column_name</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">Identifier</span><span class="p">]:</span> </span><span id="Resolver-345"><a href="#Resolver-345"><span class="linenos">345</span></a><span class="w"> </span><span class="sd">"""</span> </span><span id="Resolver-346"><a href="#Resolver-346"><span class="linenos">346</span></a><span class="sd"> Get the table for a column name.</span> </span><span id="Resolver-347"><a href="#Resolver-347"><span class="linenos">347</span></a> @@ -675,97 +686,108 @@ </span><span id="Resolver-355"><a href="#Resolver-355"><span class="linenos">355</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_get_all_source_columns</span><span class="p">()</span> </span><span id="Resolver-356"><a href="#Resolver-356"><span class="linenos">356</span></a> <span class="p">)</span> </span><span id="Resolver-357"><a href="#Resolver-357"><span class="linenos">357</span></a> -</span><span id="Resolver-358"><a href="#Resolver-358"><span class="linenos">358</span></a> <span class="n">table</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">column_name</span><span class="p">)</span> +</span><span id="Resolver-358"><a href="#Resolver-358"><span class="linenos">358</span></a> <span class="n">table_name</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">column_name</span><span class="p">)</span> </span><span id="Resolver-359"><a href="#Resolver-359"><span class="linenos">359</span></a> -</span><span id="Resolver-360"><a href="#Resolver-360"><span class="linenos">360</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">table</span><span class="p">:</span> +</span><span id="Resolver-360"><a href="#Resolver-360"><span class="linenos">360</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">table_name</span><span class="p">:</span> </span><span id="Resolver-361"><a href="#Resolver-361"><span class="linenos">361</span></a> <span class="n">sources_without_schema</span> <span class="o">=</span> <span class="nb">tuple</span><span class="p">(</span> </span><span id="Resolver-362"><a href="#Resolver-362"><span class="linenos">362</span></a> <span class="n">source</span> </span><span id="Resolver-363"><a href="#Resolver-363"><span class="linenos">363</span></a> <span class="k">for</span> <span class="n">source</span><span class="p">,</span> <span class="n">columns</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_all_source_columns</span><span class="p">()</span><span class="o">.</span><span class="n">items</span><span class="p">()</span> </span><span id="Resolver-364"><a href="#Resolver-364"><span class="linenos">364</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">columns</span> <span class="ow">or</span> <span class="s2">"*"</span> <span class="ow">in</span> <span class="n">columns</span> </span><span id="Resolver-365"><a href="#Resolver-365"><span class="linenos">365</span></a> <span class="p">)</span> </span><span id="Resolver-366"><a href="#Resolver-366"><span class="linenos">366</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">sources_without_schema</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span> -</span><span id="Resolver-367"><a href="#Resolver-367"><span class="linenos">367</span></a> <span class="k">return</span> <span class="n">sources_without_schema</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> +</span><span id="Resolver-367"><a href="#Resolver-367"><span class="linenos">367</span></a> <span class="n">table_name</span> <span class="o">=</span> <span class="n">sources_without_schema</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> </span><span id="Resolver-368"><a href="#Resolver-368"><span class="linenos">368</span></a> -</span><span id="Resolver-369"><a href="#Resolver-369"><span class="linenos">369</span></a> <span class="k">return</span> <span class="n">table</span> -</span><span id="Resolver-370"><a href="#Resolver-370"><span class="linenos">370</span></a> -</span><span id="Resolver-371"><a href="#Resolver-371"><span class="linenos">371</span></a> <span class="nd">@property</span> -</span><span id="Resolver-372"><a href="#Resolver-372"><span class="linenos">372</span></a> <span class="k">def</span> <span class="nf">all_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> -</span><span id="Resolver-373"><a href="#Resolver-373"><span class="linenos">373</span></a><span class="w"> </span><span class="sd">"""All available columns of all sources in this scope"""</span> -</span><span id="Resolver-374"><a href="#Resolver-374"><span class="linenos">374</span></a> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> -</span><span id="Resolver-375"><a href="#Resolver-375"><span class="linenos">375</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> <span class="o">=</span> <span class="p">{</span> -</span><span id="Resolver-376"><a href="#Resolver-376"><span class="linenos">376</span></a> <span class="n">column</span> <span class="k">for</span> <span class="n">columns</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_all_source_columns</span><span class="p">()</span><span class="o">.</span><span class="n">values</span><span class="p">()</span> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">columns</span> -</span><span id="Resolver-377"><a href="#Resolver-377"><span class="linenos">377</span></a> <span class="p">}</span> -</span><span id="Resolver-378"><a href="#Resolver-378"><span class="linenos">378</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> -</span><span id="Resolver-379"><a href="#Resolver-379"><span class="linenos">379</span></a> -</span><span id="Resolver-380"><a href="#Resolver-380"><span class="linenos">380</span></a> <span class="k">def</span> <span class="nf">get_source_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">only_visible</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span> -</span><span id="Resolver-381"><a href="#Resolver-381"><span class="linenos">381</span></a><span class="w"> </span><span class="sd">"""Resolve the source columns for a given source `name`"""</span> -</span><span id="Resolver-382"><a href="#Resolver-382"><span class="linenos">382</span></a> <span class="k">if</span> <span class="n">name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">:</span> -</span><span id="Resolver-383"><a href="#Resolver-383"><span class="linenos">383</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Unknown table: </span><span class="si">{</span><span class="n">name</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> -</span><span id="Resolver-384"><a href="#Resolver-384"><span class="linenos">384</span></a> -</span><span id="Resolver-385"><a href="#Resolver-385"><span class="linenos">385</span></a> <span class="n">source</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">[</span><span class="n">name</span><span class="p">]</span> -</span><span id="Resolver-386"><a href="#Resolver-386"><span class="linenos">386</span></a> -</span><span id="Resolver-387"><a href="#Resolver-387"><span class="linenos">387</span></a> <span class="c1"># If referencing a table, return the columns from the schema</span> -</span><span id="Resolver-388"><a href="#Resolver-388"><span class="linenos">388</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span><span class="p">):</span> -</span><span id="Resolver-389"><a href="#Resolver-389"><span class="linenos">389</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">schema</span><span class="o">.</span><span class="n">column_names</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">only_visible</span><span class="p">)</span> +</span><span id="Resolver-369"><a href="#Resolver-369"><span class="linenos">369</span></a> <span class="k">if</span> <span class="n">table_name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="p">:</span> +</span><span id="Resolver-370"><a href="#Resolver-370"><span class="linenos">370</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="n">table_name</span><span class="p">)</span> +</span><span id="Resolver-371"><a href="#Resolver-371"><span class="linenos">371</span></a> +</span><span id="Resolver-372"><a href="#Resolver-372"><span class="linenos">372</span></a> <span class="n">node</span><span class="p">,</span> <span class="n">_</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">table_name</span><span class="p">)</span> +</span><span id="Resolver-373"><a href="#Resolver-373"><span class="linenos">373</span></a> +</span><span id="Resolver-374"><a href="#Resolver-374"><span class="linenos">374</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Subqueryable</span><span class="p">):</span> +</span><span id="Resolver-375"><a href="#Resolver-375"><span class="linenos">375</span></a> <span class="k">while</span> <span class="n">node</span> <span class="ow">and</span> <span class="n">node</span><span class="o">.</span><span class="n">alias</span> <span class="o">!=</span> <span class="n">table_name</span><span class="p">:</span> +</span><span id="Resolver-376"><a href="#Resolver-376"><span class="linenos">376</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">node</span><span class="o">.</span><span class="n">parent</span> +</span><span id="Resolver-377"><a href="#Resolver-377"><span class="linenos">377</span></a> <span class="n">node_alias</span> <span class="o">=</span> <span class="n">node</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"alias"</span><span class="p">)</span> +</span><span id="Resolver-378"><a href="#Resolver-378"><span class="linenos">378</span></a> <span class="k">if</span> <span class="n">node_alias</span><span class="p">:</span> +</span><span id="Resolver-379"><a href="#Resolver-379"><span class="linenos">379</span></a> <span class="k">return</span> <span class="n">node_alias</span><span class="o">.</span><span class="n">this</span> +</span><span id="Resolver-380"><a href="#Resolver-380"><span class="linenos">380</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="n">table_name</span><span class="p">)</span> +</span><span id="Resolver-381"><a href="#Resolver-381"><span class="linenos">381</span></a> +</span><span id="Resolver-382"><a href="#Resolver-382"><span class="linenos">382</span></a> <span class="nd">@property</span> +</span><span id="Resolver-383"><a href="#Resolver-383"><span class="linenos">383</span></a> <span class="k">def</span> <span class="nf">all_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> +</span><span id="Resolver-384"><a href="#Resolver-384"><span class="linenos">384</span></a><span class="w"> </span><span class="sd">"""All available columns of all sources in this scope"""</span> +</span><span id="Resolver-385"><a href="#Resolver-385"><span class="linenos">385</span></a> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> +</span><span id="Resolver-386"><a href="#Resolver-386"><span class="linenos">386</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> <span class="o">=</span> <span class="p">{</span> +</span><span id="Resolver-387"><a href="#Resolver-387"><span class="linenos">387</span></a> <span class="n">column</span> <span class="k">for</span> <span class="n">columns</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_all_source_columns</span><span class="p">()</span><span class="o">.</span><span class="n">values</span><span class="p">()</span> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">columns</span> +</span><span id="Resolver-388"><a href="#Resolver-388"><span class="linenos">388</span></a> <span class="p">}</span> +</span><span id="Resolver-389"><a href="#Resolver-389"><span class="linenos">389</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_all_columns</span> </span><span id="Resolver-390"><a href="#Resolver-390"><span class="linenos">390</span></a> -</span><span id="Resolver-391"><a href="#Resolver-391"><span class="linenos">391</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">Scope</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="o">.</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Values</span><span class="p">):</span> -</span><span id="Resolver-392"><a href="#Resolver-392"><span class="linenos">392</span></a> <span class="k">return</span> <span class="n">source</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">alias_column_names</span> -</span><span id="Resolver-393"><a href="#Resolver-393"><span class="linenos">393</span></a> -</span><span id="Resolver-394"><a href="#Resolver-394"><span class="linenos">394</span></a> <span class="c1"># Otherwise, if referencing another scope, return that scope's named selects</span> -</span><span id="Resolver-395"><a href="#Resolver-395"><span class="linenos">395</span></a> <span class="k">return</span> <span class="n">source</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">named_selects</span> -</span><span id="Resolver-396"><a href="#Resolver-396"><span class="linenos">396</span></a> -</span><span id="Resolver-397"><a href="#Resolver-397"><span class="linenos">397</span></a> <span class="k">def</span> <span class="nf">_get_all_source_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> -</span><span id="Resolver-398"><a href="#Resolver-398"><span class="linenos">398</span></a> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> -</span><span id="Resolver-399"><a href="#Resolver-399"><span class="linenos">399</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span> <span class="o">=</span> <span class="p">{</span> -</span><span id="Resolver-400"><a href="#Resolver-400"><span class="linenos">400</span></a> <span class="n">k</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_source_columns</span><span class="p">(</span><span class="n">k</span><span class="p">)</span> -</span><span id="Resolver-401"><a href="#Resolver-401"><span class="linenos">401</span></a> <span class="k">for</span> <span class="n">k</span> <span class="ow">in</span> <span class="n">itertools</span><span class="o">.</span><span class="n">chain</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">lateral_sources</span><span class="p">)</span> -</span><span id="Resolver-402"><a href="#Resolver-402"><span class="linenos">402</span></a> <span class="p">}</span> -</span><span id="Resolver-403"><a href="#Resolver-403"><span class="linenos">403</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span> +</span><span id="Resolver-391"><a href="#Resolver-391"><span class="linenos">391</span></a> <span class="k">def</span> <span class="nf">get_source_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">only_visible</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span> +</span><span id="Resolver-392"><a href="#Resolver-392"><span class="linenos">392</span></a><span class="w"> </span><span class="sd">"""Resolve the source columns for a given source `name`"""</span> +</span><span id="Resolver-393"><a href="#Resolver-393"><span class="linenos">393</span></a> <span class="k">if</span> <span class="n">name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">:</span> +</span><span id="Resolver-394"><a href="#Resolver-394"><span class="linenos">394</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Unknown table: </span><span class="si">{</span><span class="n">name</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> +</span><span id="Resolver-395"><a href="#Resolver-395"><span class="linenos">395</span></a> +</span><span id="Resolver-396"><a href="#Resolver-396"><span class="linenos">396</span></a> <span class="n">source</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">[</span><span class="n">name</span><span class="p">]</span> +</span><span id="Resolver-397"><a href="#Resolver-397"><span class="linenos">397</span></a> +</span><span id="Resolver-398"><a href="#Resolver-398"><span class="linenos">398</span></a> <span class="c1"># If referencing a table, return the columns from the schema</span> +</span><span id="Resolver-399"><a href="#Resolver-399"><span class="linenos">399</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span><span class="p">):</span> +</span><span id="Resolver-400"><a href="#Resolver-400"><span class="linenos">400</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">schema</span><span class="o">.</span><span class="n">column_names</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">only_visible</span><span class="p">)</span> +</span><span id="Resolver-401"><a href="#Resolver-401"><span class="linenos">401</span></a> +</span><span id="Resolver-402"><a href="#Resolver-402"><span class="linenos">402</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">Scope</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="o">.</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Values</span><span class="p">):</span> +</span><span id="Resolver-403"><a href="#Resolver-403"><span class="linenos">403</span></a> <span class="k">return</span> <span class="n">source</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">alias_column_names</span> </span><span id="Resolver-404"><a href="#Resolver-404"><span class="linenos">404</span></a> -</span><span id="Resolver-405"><a href="#Resolver-405"><span class="linenos">405</span></a> <span class="k">def</span> <span class="nf">_get_unambiguous_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">source_columns</span><span class="p">):</span> -</span><span id="Resolver-406"><a href="#Resolver-406"><span class="linenos">406</span></a><span class="w"> </span><span class="sd">"""</span> -</span><span id="Resolver-407"><a href="#Resolver-407"><span class="linenos">407</span></a><span class="sd"> Find all the unambiguous columns in sources.</span> -</span><span id="Resolver-408"><a href="#Resolver-408"><span class="linenos">408</span></a> -</span><span id="Resolver-409"><a href="#Resolver-409"><span class="linenos">409</span></a><span class="sd"> Args:</span> -</span><span id="Resolver-410"><a href="#Resolver-410"><span class="linenos">410</span></a><span class="sd"> source_columns (dict): Mapping of names to source columns</span> -</span><span id="Resolver-411"><a href="#Resolver-411"><span class="linenos">411</span></a><span class="sd"> Returns:</span> -</span><span id="Resolver-412"><a href="#Resolver-412"><span class="linenos">412</span></a><span class="sd"> dict: Mapping of column name to source name</span> -</span><span id="Resolver-413"><a href="#Resolver-413"><span class="linenos">413</span></a><span class="sd"> """</span> -</span><span id="Resolver-414"><a href="#Resolver-414"><span class="linenos">414</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">source_columns</span><span class="p">:</span> -</span><span id="Resolver-415"><a href="#Resolver-415"><span class="linenos">415</span></a> <span class="k">return</span> <span class="p">{}</span> -</span><span id="Resolver-416"><a href="#Resolver-416"><span class="linenos">416</span></a> -</span><span id="Resolver-417"><a href="#Resolver-417"><span class="linenos">417</span></a> <span class="n">source_columns</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">source_columns</span><span class="o">.</span><span class="n">items</span><span class="p">())</span> -</span><span id="Resolver-418"><a href="#Resolver-418"><span class="linenos">418</span></a> -</span><span id="Resolver-419"><a href="#Resolver-419"><span class="linenos">419</span></a> <span class="n">first_table</span><span class="p">,</span> <span class="n">first_columns</span> <span class="o">=</span> <span class="n">source_columns</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> -</span><span id="Resolver-420"><a href="#Resolver-420"><span class="linenos">420</span></a> <span class="n">unambiguous_columns</span> <span class="o">=</span> <span class="p">{</span><span class="n">col</span><span class="p">:</span> <span class="n">first_table</span> <span class="k">for</span> <span class="n">col</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_find_unique_columns</span><span class="p">(</span><span class="n">first_columns</span><span class="p">)}</span> -</span><span id="Resolver-421"><a href="#Resolver-421"><span class="linenos">421</span></a> <span class="n">all_columns</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">unambiguous_columns</span><span class="p">)</span> -</span><span id="Resolver-422"><a href="#Resolver-422"><span class="linenos">422</span></a> -</span><span id="Resolver-423"><a href="#Resolver-423"><span class="linenos">423</span></a> <span class="k">for</span> <span class="n">table</span><span class="p">,</span> <span class="n">columns</span> <span class="ow">in</span> <span class="n">source_columns</span><span class="p">[</span><span class="mi">1</span><span class="p">:]:</span> -</span><span id="Resolver-424"><a href="#Resolver-424"><span class="linenos">424</span></a> <span class="n">unique</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_find_unique_columns</span><span class="p">(</span><span class="n">columns</span><span class="p">)</span> -</span><span id="Resolver-425"><a href="#Resolver-425"><span class="linenos">425</span></a> <span class="n">ambiguous</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">all_columns</span><span class="p">)</span><span class="o">.</span><span class="n">intersection</span><span class="p">(</span><span class="n">unique</span><span class="p">)</span> -</span><span id="Resolver-426"><a href="#Resolver-426"><span class="linenos">426</span></a> <span class="n">all_columns</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">columns</span><span class="p">)</span> -</span><span id="Resolver-427"><a href="#Resolver-427"><span class="linenos">427</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">ambiguous</span><span class="p">:</span> -</span><span id="Resolver-428"><a href="#Resolver-428"><span class="linenos">428</span></a> <span class="n">unambiguous_columns</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="n">column</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span> -</span><span id="Resolver-429"><a href="#Resolver-429"><span class="linenos">429</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">unique</span><span class="o">.</span><span class="n">difference</span><span class="p">(</span><span class="n">ambiguous</span><span class="p">):</span> -</span><span id="Resolver-430"><a href="#Resolver-430"><span class="linenos">430</span></a> <span class="n">unambiguous_columns</span><span class="p">[</span><span class="n">column</span><span class="p">]</span> <span class="o">=</span> <span class="n">table</span> -</span><span id="Resolver-431"><a href="#Resolver-431"><span class="linenos">431</span></a> -</span><span id="Resolver-432"><a href="#Resolver-432"><span class="linenos">432</span></a> <span class="k">return</span> <span class="n">unambiguous_columns</span> +</span><span id="Resolver-405"><a href="#Resolver-405"><span class="linenos">405</span></a> <span class="c1"># Otherwise, if referencing another scope, return that scope's named selects</span> +</span><span id="Resolver-406"><a href="#Resolver-406"><span class="linenos">406</span></a> <span class="k">return</span> <span class="n">source</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">named_selects</span> +</span><span id="Resolver-407"><a href="#Resolver-407"><span class="linenos">407</span></a> +</span><span id="Resolver-408"><a href="#Resolver-408"><span class="linenos">408</span></a> <span class="k">def</span> <span class="nf">_get_all_source_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> +</span><span id="Resolver-409"><a href="#Resolver-409"><span class="linenos">409</span></a> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> +</span><span id="Resolver-410"><a href="#Resolver-410"><span class="linenos">410</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span> <span class="o">=</span> <span class="p">{</span> +</span><span id="Resolver-411"><a href="#Resolver-411"><span class="linenos">411</span></a> <span class="n">k</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_source_columns</span><span class="p">(</span><span class="n">k</span><span class="p">)</span> +</span><span id="Resolver-412"><a href="#Resolver-412"><span class="linenos">412</span></a> <span class="k">for</span> <span class="n">k</span> <span class="ow">in</span> <span class="n">itertools</span><span class="o">.</span><span class="n">chain</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">lateral_sources</span><span class="p">)</span> +</span><span id="Resolver-413"><a href="#Resolver-413"><span class="linenos">413</span></a> <span class="p">}</span> +</span><span id="Resolver-414"><a href="#Resolver-414"><span class="linenos">414</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_source_columns</span> +</span><span id="Resolver-415"><a href="#Resolver-415"><span class="linenos">415</span></a> +</span><span id="Resolver-416"><a href="#Resolver-416"><span class="linenos">416</span></a> <span class="k">def</span> <span class="nf">_get_unambiguous_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">source_columns</span><span class="p">):</span> +</span><span id="Resolver-417"><a href="#Resolver-417"><span class="linenos">417</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="Resolver-418"><a href="#Resolver-418"><span class="linenos">418</span></a><span class="sd"> Find all the unambiguous columns in sources.</span> +</span><span id="Resolver-419"><a href="#Resolver-419"><span class="linenos">419</span></a> +</span><span id="Resolver-420"><a href="#Resolver-420"><span class="linenos">420</span></a><span class="sd"> Args:</span> +</span><span id="Resolver-421"><a href="#Resolver-421"><span class="linenos">421</span></a><span class="sd"> source_columns (dict): Mapping of names to source columns</span> +</span><span id="Resolver-422"><a href="#Resolver-422"><span class="linenos">422</span></a><span class="sd"> Returns:</span> +</span><span id="Resolver-423"><a href="#Resolver-423"><span class="linenos">423</span></a><span class="sd"> dict: Mapping of column name to source name</span> +</span><span id="Resolver-424"><a href="#Resolver-424"><span class="linenos">424</span></a><span class="sd"> """</span> +</span><span id="Resolver-425"><a href="#Resolver-425"><span class="linenos">425</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">source_columns</span><span class="p">:</span> +</span><span id="Resolver-426"><a href="#Resolver-426"><span class="linenos">426</span></a> <span class="k">return</span> <span class="p">{}</span> +</span><span id="Resolver-427"><a href="#Resolver-427"><span class="linenos">427</span></a> +</span><span id="Resolver-428"><a href="#Resolver-428"><span class="linenos">428</span></a> <span class="n">source_columns</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">source_columns</span><span class="o">.</span><span class="n">items</span><span class="p">())</span> +</span><span id="Resolver-429"><a href="#Resolver-429"><span class="linenos">429</span></a> +</span><span id="Resolver-430"><a href="#Resolver-430"><span class="linenos">430</span></a> <span class="n">first_table</span><span class="p">,</span> <span class="n">first_columns</span> <span class="o">=</span> <span class="n">source_columns</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> +</span><span id="Resolver-431"><a href="#Resolver-431"><span class="linenos">431</span></a> <span class="n">unambiguous_columns</span> <span class="o">=</span> <span class="p">{</span><span class="n">col</span><span class="p">:</span> <span class="n">first_table</span> <span class="k">for</span> <span class="n">col</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_find_unique_columns</span><span class="p">(</span><span class="n">first_columns</span><span class="p">)}</span> +</span><span id="Resolver-432"><a href="#Resolver-432"><span class="linenos">432</span></a> <span class="n">all_columns</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">unambiguous_columns</span><span class="p">)</span> </span><span id="Resolver-433"><a href="#Resolver-433"><span class="linenos">433</span></a> -</span><span id="Resolver-434"><a href="#Resolver-434"><span class="linenos">434</span></a> <span class="nd">@staticmethod</span> -</span><span id="Resolver-435"><a href="#Resolver-435"><span class="linenos">435</span></a> <span class="k">def</span> <span class="nf">_find_unique_columns</span><span class="p">(</span><span class="n">columns</span><span class="p">):</span> -</span><span id="Resolver-436"><a href="#Resolver-436"><span class="linenos">436</span></a><span class="w"> </span><span class="sd">"""</span> -</span><span id="Resolver-437"><a href="#Resolver-437"><span class="linenos">437</span></a><span class="sd"> Find the unique columns in a list of columns.</span> -</span><span id="Resolver-438"><a href="#Resolver-438"><span class="linenos">438</span></a> -</span><span id="Resolver-439"><a href="#Resolver-439"><span class="linenos">439</span></a><span class="sd"> Example:</span> -</span><span id="Resolver-440"><a href="#Resolver-440"><span class="linenos">440</span></a><span class="sd"> >>> sorted(Resolver._find_unique_columns(["a", "b", "b", "c"]))</span> -</span><span id="Resolver-441"><a href="#Resolver-441"><span class="linenos">441</span></a><span class="sd"> ['a', 'c']</span> +</span><span id="Resolver-434"><a href="#Resolver-434"><span class="linenos">434</span></a> <span class="k">for</span> <span class="n">table</span><span class="p">,</span> <span class="n">columns</span> <span class="ow">in</span> <span class="n">source_columns</span><span class="p">[</span><span class="mi">1</span><span class="p">:]:</span> +</span><span id="Resolver-435"><a href="#Resolver-435"><span class="linenos">435</span></a> <span class="n">unique</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_find_unique_columns</span><span class="p">(</span><span class="n">columns</span><span class="p">)</span> +</span><span id="Resolver-436"><a href="#Resolver-436"><span class="linenos">436</span></a> <span class="n">ambiguous</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">all_columns</span><span class="p">)</span><span class="o">.</span><span class="n">intersection</span><span class="p">(</span><span class="n">unique</span><span class="p">)</span> +</span><span id="Resolver-437"><a href="#Resolver-437"><span class="linenos">437</span></a> <span class="n">all_columns</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">columns</span><span class="p">)</span> +</span><span id="Resolver-438"><a href="#Resolver-438"><span class="linenos">438</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">ambiguous</span><span class="p">:</span> +</span><span id="Resolver-439"><a href="#Resolver-439"><span class="linenos">439</span></a> <span class="n">unambiguous_columns</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="n">column</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span> +</span><span id="Resolver-440"><a href="#Resolver-440"><span class="linenos">440</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">unique</span><span class="o">.</span><span class="n">difference</span><span class="p">(</span><span class="n">ambiguous</span><span class="p">):</span> +</span><span id="Resolver-441"><a href="#Resolver-441"><span class="linenos">441</span></a> <span class="n">unambiguous_columns</span><span class="p">[</span><span class="n">column</span><span class="p">]</span> <span class="o">=</span> <span class="n">table</span> </span><span id="Resolver-442"><a href="#Resolver-442"><span class="linenos">442</span></a> -</span><span id="Resolver-443"><a href="#Resolver-443"><span class="linenos">443</span></a><span class="sd"> This is necessary because duplicate column names are ambiguous.</span> -</span><span id="Resolver-444"><a href="#Resolver-444"><span class="linenos">444</span></a><span class="sd"> """</span> -</span><span id="Resolver-445"><a href="#Resolver-445"><span class="linenos">445</span></a> <span class="n">counts</span> <span class="o">=</span> <span class="p">{}</span> -</span><span id="Resolver-446"><a href="#Resolver-446"><span class="linenos">446</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">columns</span><span class="p">:</span> -</span><span id="Resolver-447"><a href="#Resolver-447"><span class="linenos">447</span></a> <span class="n">counts</span><span class="p">[</span><span class="n">column</span><span class="p">]</span> <span class="o">=</span> <span class="n">counts</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">column</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span> <span class="o">+</span> <span class="mi">1</span> -</span><span id="Resolver-448"><a href="#Resolver-448"><span class="linenos">448</span></a> <span class="k">return</span> <span class="p">{</span><span class="n">column</span> <span class="k">for</span> <span class="n">column</span><span class="p">,</span> <span class="n">count</span> <span class="ow">in</span> <span class="n">counts</span><span class="o">.</span><span class="n">items</span><span class="p">()</span> <span class="k">if</span> <span class="n">count</span> <span class="o">==</span> <span class="mi">1</span><span class="p">}</span> +</span><span id="Resolver-443"><a href="#Resolver-443"><span class="linenos">443</span></a> <span class="k">return</span> <span class="n">unambiguous_columns</span> +</span><span id="Resolver-444"><a href="#Resolver-444"><span class="linenos">444</span></a> +</span><span id="Resolver-445"><a href="#Resolver-445"><span class="linenos">445</span></a> <span class="nd">@staticmethod</span> +</span><span id="Resolver-446"><a href="#Resolver-446"><span class="linenos">446</span></a> <span class="k">def</span> <span class="nf">_find_unique_columns</span><span class="p">(</span><span class="n">columns</span><span class="p">):</span> +</span><span id="Resolver-447"><a href="#Resolver-447"><span class="linenos">447</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="Resolver-448"><a href="#Resolver-448"><span class="linenos">448</span></a><span class="sd"> Find the unique columns in a list of columns.</span> +</span><span id="Resolver-449"><a href="#Resolver-449"><span class="linenos">449</span></a> +</span><span id="Resolver-450"><a href="#Resolver-450"><span class="linenos">450</span></a><span class="sd"> Example:</span> +</span><span id="Resolver-451"><a href="#Resolver-451"><span class="linenos">451</span></a><span class="sd"> >>> sorted(Resolver._find_unique_columns(["a", "b", "b", "c"]))</span> +</span><span id="Resolver-452"><a href="#Resolver-452"><span class="linenos">452</span></a><span class="sd"> ['a', 'c']</span> +</span><span id="Resolver-453"><a href="#Resolver-453"><span class="linenos">453</span></a> +</span><span id="Resolver-454"><a href="#Resolver-454"><span class="linenos">454</span></a><span class="sd"> This is necessary because duplicate column names are ambiguous.</span> +</span><span id="Resolver-455"><a href="#Resolver-455"><span class="linenos">455</span></a><span class="sd"> """</span> +</span><span id="Resolver-456"><a href="#Resolver-456"><span class="linenos">456</span></a> <span class="n">counts</span> <span class="o">=</span> <span class="p">{}</span> +</span><span id="Resolver-457"><a href="#Resolver-457"><span class="linenos">457</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">columns</span><span class="p">:</span> +</span><span id="Resolver-458"><a href="#Resolver-458"><span class="linenos">458</span></a> <span class="n">counts</span><span class="p">[</span><span class="n">column</span><span class="p">]</span> <span class="o">=</span> <span class="n">counts</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">column</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span> <span class="o">+</span> <span class="mi">1</span> +</span><span id="Resolver-459"><a href="#Resolver-459"><span class="linenos">459</span></a> <span class="k">return</span> <span class="p">{</span><span class="n">column</span> <span class="k">for</span> <span class="n">column</span><span class="p">,</span> <span class="n">count</span> <span class="ow">in</span> <span class="n">counts</span><span class="o">.</span><span class="n">items</span><span class="p">()</span> <span class="k">if</span> <span class="n">count</span> <span class="o">==</span> <span class="mi">1</span><span class="p">}</span> </span></pre></div> @@ -802,13 +824,13 @@ <div class="attr function"> <span class="def">def</span> - <span class="name">get_table</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">column_name</span><span class="p">:</span> <span class="nb">str</span></span><span class="return-annotation">) -> <span class="n">Optional</span><span class="p">[</span><span class="nb">str</span><span class="p">]</span>:</span></span> + <span class="name">get_table</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">column_name</span><span class="p">:</span> <span class="nb">str</span></span><span class="return-annotation">) -> <span class="n">Optional</span><span class="p">[</span><span class="n"><a href="../expressions.html#Identifier">sqlglot.expressions.Identifier</a></span><span class="p">]</span>:</span></span> <label class="view-source-button" for="Resolver.get_table-view-source"><span>View Source</span></label> </div> <a class="headerlink" href="#Resolver.get_table"></a> - <div class="pdoc-code codehilite"><pre><span></span><span id="Resolver.get_table-344"><a href="#Resolver.get_table-344"><span class="linenos">344</span></a> <span class="k">def</span> <span class="nf">get_table</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">column_name</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="nb">str</span><span class="p">]:</span> + <div class="pdoc-code codehilite"><pre><span></span><span id="Resolver.get_table-344"><a href="#Resolver.get_table-344"><span class="linenos">344</span></a> <span class="k">def</span> <span class="nf">get_table</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">column_name</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">Identifier</span><span class="p">]:</span> </span><span id="Resolver.get_table-345"><a href="#Resolver.get_table-345"><span class="linenos">345</span></a><span class="w"> </span><span class="sd">"""</span> </span><span id="Resolver.get_table-346"><a href="#Resolver.get_table-346"><span class="linenos">346</span></a><span class="sd"> Get the table for a column name.</span> </span><span id="Resolver.get_table-347"><a href="#Resolver.get_table-347"><span class="linenos">347</span></a> @@ -822,18 +844,29 @@ </span><span id="Resolver.get_table-355"><a href="#Resolver.get_table-355"><span class="linenos">355</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_get_all_source_columns</span><span class="p">()</span> </span><span id="Resolver.get_table-356"><a href="#Resolver.get_table-356"><span class="linenos">356</span></a> <span class="p">)</span> </span><span id="Resolver.get_table-357"><a href="#Resolver.get_table-357"><span class="linenos">357</span></a> -</span><span id="Resolver.get_table-358"><a href="#Resolver.get_table-358"><span class="linenos">358</span></a> <span class="n">table</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">column_name</span><span class="p">)</span> +</span><span id="Resolver.get_table-358"><a href="#Resolver.get_table-358"><span class="linenos">358</span></a> <span class="n">table_name</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_unambiguous_columns</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">column_name</span><span class="p">)</span> </span><span id="Resolver.get_table-359"><a href="#Resolver.get_table-359"><span class="linenos">359</span></a> -</span><span id="Resolver.get_table-360"><a href="#Resolver.get_table-360"><span class="linenos">360</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">table</span><span class="p">:</span> +</span><span id="Resolver.get_table-360"><a href="#Resolver.get_table-360"><span class="linenos">360</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">table_name</span><span class="p">:</span> </span><span id="Resolver.get_table-361"><a href="#Resolver.get_table-361"><span class="linenos">361</span></a> <span class="n">sources_without_schema</span> <span class="o">=</span> <span class="nb">tuple</span><span class="p">(</span> </span><span id="Resolver.get_table-362"><a href="#Resolver.get_table-362"><span class="linenos">362</span></a> <span class="n">source</span> </span><span id="Resolver.get_table-363"><a href="#Resolver.get_table-363"><span class="linenos">363</span></a> <span class="k">for</span> <span class="n">source</span><span class="p">,</span> <span class="n">columns</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_all_source_columns</span><span class="p">()</span><span class="o">.</span><span class="n">items</span><span class="p">()</span> </span><span id="Resolver.get_table-364"><a href="#Resolver.get_table-364"><span class="linenos">364</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">columns</span> <span class="ow">or</span> <span class="s2">"*"</span> <span class="ow">in</span> <span class="n">columns</span> </span><span id="Resolver.get_table-365"><a href="#Resolver.get_table-365"><span class="linenos">365</span></a> <span class="p">)</span> </span><span id="Resolver.get_table-366"><a href="#Resolver.get_table-366"><span class="linenos">366</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">sources_without_schema</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span> -</span><span id="Resolver.get_table-367"><a href="#Resolver.get_table-367"><span class="linenos">367</span></a> <span class="k">return</span> <span class="n">sources_without_schema</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> +</span><span id="Resolver.get_table-367"><a href="#Resolver.get_table-367"><span class="linenos">367</span></a> <span class="n">table_name</span> <span class="o">=</span> <span class="n">sources_without_schema</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> </span><span id="Resolver.get_table-368"><a href="#Resolver.get_table-368"><span class="linenos">368</span></a> -</span><span id="Resolver.get_table-369"><a href="#Resolver.get_table-369"><span class="linenos">369</span></a> <span class="k">return</span> <span class="n">table</span> +</span><span id="Resolver.get_table-369"><a href="#Resolver.get_table-369"><span class="linenos">369</span></a> <span class="k">if</span> <span class="n">table_name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="p">:</span> +</span><span id="Resolver.get_table-370"><a href="#Resolver.get_table-370"><span class="linenos">370</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="n">table_name</span><span class="p">)</span> +</span><span id="Resolver.get_table-371"><a href="#Resolver.get_table-371"><span class="linenos">371</span></a> +</span><span id="Resolver.get_table-372"><a href="#Resolver.get_table-372"><span class="linenos">372</span></a> <span class="n">node</span><span class="p">,</span> <span class="n">_</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">table_name</span><span class="p">)</span> +</span><span id="Resolver.get_table-373"><a href="#Resolver.get_table-373"><span class="linenos">373</span></a> +</span><span id="Resolver.get_table-374"><a href="#Resolver.get_table-374"><span class="linenos">374</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Subqueryable</span><span class="p">):</span> +</span><span id="Resolver.get_table-375"><a href="#Resolver.get_table-375"><span class="linenos">375</span></a> <span class="k">while</span> <span class="n">node</span> <span class="ow">and</span> <span class="n">node</span><span class="o">.</span><span class="n">alias</span> <span class="o">!=</span> <span class="n">table_name</span><span class="p">:</span> +</span><span id="Resolver.get_table-376"><a href="#Resolver.get_table-376"><span class="linenos">376</span></a> <span class="n">node</span> <span class="o">=</span> <span class="n">node</span><span class="o">.</span><span class="n">parent</span> +</span><span id="Resolver.get_table-377"><a href="#Resolver.get_table-377"><span class="linenos">377</span></a> <span class="n">node_alias</span> <span class="o">=</span> <span class="n">node</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"alias"</span><span class="p">)</span> +</span><span id="Resolver.get_table-378"><a href="#Resolver.get_table-378"><span class="linenos">378</span></a> <span class="k">if</span> <span class="n">node_alias</span><span class="p">:</span> +</span><span id="Resolver.get_table-379"><a href="#Resolver.get_table-379"><span class="linenos">379</span></a> <span class="k">return</span> <span class="n">node_alias</span><span class="o">.</span><span class="n">this</span> +</span><span id="Resolver.get_table-380"><a href="#Resolver.get_table-380"><span class="linenos">380</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="n">table_name</span><span class="p">)</span> </span></pre></div> @@ -878,22 +911,22 @@ </div> <a class="headerlink" href="#Resolver.get_source_columns"></a> - <div class="pdoc-code codehilite"><pre><span></span><span id="Resolver.get_source_columns-380"><a href="#Resolver.get_source_columns-380"><span class="linenos">380</span></a> <span class="k">def</span> <span class="nf">get_source_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">only_visible</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span> -</span><span id="Resolver.get_source_columns-381"><a href="#Resolver.get_source_columns-381"><span class="linenos">381</span></a><span class="w"> </span><span class="sd">"""Resolve the source columns for a given source `name`"""</span> -</span><span id="Resolver.get_source_columns-382"><a href="#Resolver.get_source_columns-382"><span class="linenos">382</span></a> <span class="k">if</span> <span class="n">name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">:</span> -</span><span id="Resolver.get_source_columns-383"><a href="#Resolver.get_source_columns-383"><span class="linenos">383</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Unknown table: </span><span class="si">{</span><span class="n">name</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> -</span><span id="Resolver.get_source_columns-384"><a href="#Resolver.get_source_columns-384"><span class="linenos">384</span></a> -</span><span id="Resolver.get_source_columns-385"><a href="#Resolver.get_source_columns-385"><span class="linenos">385</span></a> <span class="n">source</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">[</span><span class="n">name</span><span class="p">]</span> -</span><span id="Resolver.get_source_columns-386"><a href="#Resolver.get_source_columns-386"><span class="linenos">386</span></a> -</span><span id="Resolver.get_source_columns-387"><a href="#Resolver.get_source_columns-387"><span class="linenos">387</span></a> <span class="c1"># If referencing a table, return the columns from the schema</span> -</span><span id="Resolver.get_source_columns-388"><a href="#Resolver.get_source_columns-388"><span class="linenos">388</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span><span class="p">):</span> -</span><span id="Resolver.get_source_columns-389"><a href="#Resolver.get_source_columns-389"><span class="linenos">389</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">schema</span><span class="o">.</span><span class="n">column_names</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">only_visible</span><span class="p">)</span> -</span><span id="Resolver.get_source_columns-390"><a href="#Resolver.get_source_columns-390"><span class="linenos">390</span></a> -</span><span id="Resolver.get_source_columns-391"><a href="#Resolver.get_source_columns-391"><span class="linenos">391</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">Scope</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="o">.</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Values</span><span class="p">):</span> -</span><span id="Resolver.get_source_columns-392"><a href="#Resolver.get_source_columns-392"><span class="linenos">392</span></a> <span class="k">return</span> <span class="n">source</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">alias_column_names</span> -</span><span id="Resolver.get_source_columns-393"><a href="#Resolver.get_source_columns-393"><span class="linenos">393</span></a> -</span><span id="Resolver.get_source_columns-394"><a href="#Resolver.get_source_columns-394"><span class="linenos">394</span></a> <span class="c1"># Otherwise, if referencing another scope, return that scope's named selects</span> -</span><span id="Resolver.get_source_columns-395"><a href="#Resolver.get_source_columns-395"><span class="linenos">395</span></a> <span class="k">return</span> <span class="n">source</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">named_selects</span> + <div class="pdoc-code codehilite"><pre><span></span><span id="Resolver.get_source_columns-391"><a href="#Resolver.get_source_columns-391"><span class="linenos">391</span></a> <span class="k">def</span> <span class="nf">get_source_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">only_visible</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span> +</span><span id="Resolver.get_source_columns-392"><a href="#Resolver.get_source_columns-392"><span class="linenos">392</span></a><span class="w"> </span><span class="sd">"""Resolve the source columns for a given source `name`"""</span> +</span><span id="Resolver.get_source_columns-393"><a href="#Resolver.get_source_columns-393"><span class="linenos">393</span></a> <span class="k">if</span> <span class="n">name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">:</span> +</span><span id="Resolver.get_source_columns-394"><a href="#Resolver.get_source_columns-394"><span class="linenos">394</span></a> <span class="k">raise</span> <span class="n">OptimizeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Unknown table: </span><span class="si">{</span><span class="n">name</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> +</span><span id="Resolver.get_source_columns-395"><a href="#Resolver.get_source_columns-395"><span class="linenos">395</span></a> +</span><span id="Resolver.get_source_columns-396"><a href="#Resolver.get_source_columns-396"><span class="linenos">396</span></a> <span class="n">source</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">scope</span><span class="o">.</span><span class="n">sources</span><span class="p">[</span><span class="n">name</span><span class="p">]</span> +</span><span id="Resolver.get_source_columns-397"><a href="#Resolver.get_source_columns-397"><span class="linenos">397</span></a> +</span><span id="Resolver.get_source_columns-398"><a href="#Resolver.get_source_columns-398"><span class="linenos">398</span></a> <span class="c1"># If referencing a table, return the columns from the schema</span> +</span><span id="Resolver.get_source_columns-399"><a href="#Resolver.get_source_columns-399"><span class="linenos">399</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span><span class="p">):</span> +</span><span id="Resolver.get_source_columns-400"><a href="#Resolver.get_source_columns-400"><span class="linenos">400</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">schema</span><span class="o">.</span><span class="n">column_names</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">only_visible</span><span class="p">)</span> +</span><span id="Resolver.get_source_columns-401"><a href="#Resolver.get_source_columns-401"><span class="linenos">401</span></a> +</span><span id="Resolver.get_source_columns-402"><a href="#Resolver.get_source_columns-402"><span class="linenos">402</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">Scope</span><span class="p">)</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">source</span><span class="o">.</span><span class="n">expression</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Values</span><span class="p">):</span> +</span><span id="Resolver.get_source_columns-403"><a href="#Resolver.get_source_columns-403"><span class="linenos">403</span></a> <span class="k">return</span> <span class="n">source</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">alias_column_names</span> +</span><span id="Resolver.get_source_columns-404"><a href="#Resolver.get_source_columns-404"><span class="linenos">404</span></a> +</span><span id="Resolver.get_source_columns-405"><a href="#Resolver.get_source_columns-405"><span class="linenos">405</span></a> <span class="c1"># Otherwise, if referencing another scope, return that scope's named selects</span> +</span><span id="Resolver.get_source_columns-406"><a href="#Resolver.get_source_columns-406"><span class="linenos">406</span></a> <span class="k">return</span> <span class="n">source</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">named_selects</span> </span></pre></div> @@ -1023,7 +1056,7 @@ if (doc.annotation) heading += `<span class="annotation">${doc.annotation}</span>`; if (doc.default_value) - heading += `<span class="default_value">${doc.default_value}</span>`; + heading += `<span class="default_value"> = ${doc.default_value}</span>`; break; default: heading = `<span class="name">${doc.fullname}</span>`; |