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diff --git a/docs/sqlglot/optimizer/merge_subqueries.html b/docs/sqlglot/optimizer/merge_subqueries.html index f946b23..d28a8a8 100644 --- a/docs/sqlglot/optimizer/merge_subqueries.html +++ b/docs/sqlglot/optimizer/merge_subqueries.html @@ -246,228 +246,230 @@ </span><span id="L-176"><a href="#L-176"><span class="linenos">176</span></a> </span><span id="L-177"><a href="#L-177"><span class="linenos">177</span></a> <span class="k">return</span> <span class="p">(</span> </span><span id="L-178"><a href="#L-178"><span class="linenos">178</span></a> <span class="nb">isinstance</span><span class="p">(</span><span class="n">outer_scope</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">Select</span><span class="p">)</span> -</span><span id="L-179"><a href="#L-179"><span class="linenos">179</span></a> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">inner_select</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Select</span><span class="p">)</span> -</span><span id="L-180"><a href="#L-180"><span class="linenos">180</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="nb">any</span><span class="p">(</span><span class="n">inner_select</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">arg</span><span class="p">)</span> <span class="k">for</span> <span class="n">arg</span> <span class="ow">in</span> <span class="n">UNMERGABLE_ARGS</span><span class="p">)</span> -</span><span id="L-181"><a href="#L-181"><span class="linenos">181</span></a> <span class="ow">and</span> <span class="n">inner_select</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"from"</span><span class="p">)</span> -</span><span id="L-182"><a href="#L-182"><span class="linenos">182</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="n">outer_scope</span><span class="o">.</span><span class="n">pivots</span> -</span><span id="L-183"><a href="#L-183"><span class="linenos">183</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="nb">any</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">AggFunc</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Select</span><span class="p">)</span> <span class="k">for</span> <span class="n">e</span> <span class="ow">in</span> <span class="n">inner_select</span><span class="o">.</span><span class="n">expressions</span><span class="p">)</span> -</span><span id="L-184"><a href="#L-184"><span class="linenos">184</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="p">(</span><span class="n">leave_tables_isolated</span> <span class="ow">and</span> <span class="nb">len</span><span class="p">(</span><span class="n">outer_scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="p">)</span> <span class="o">></span> <span class="mi">1</span><span class="p">)</span> -</span><span id="L-185"><a href="#L-185"><span class="linenos">185</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="p">(</span> -</span><span id="L-186"><a href="#L-186"><span class="linenos">186</span></a> <span class="nb">isinstance</span><span class="p">(</span><span class="n">from_or_join</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Join</span><span class="p">)</span> -</span><span id="L-187"><a href="#L-187"><span class="linenos">187</span></a> <span class="ow">and</span> <span class="n">inner_select</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"where"</span><span class="p">)</span> -</span><span id="L-188"><a href="#L-188"><span class="linenos">188</span></a> <span class="ow">and</span> <span class="n">from_or_join</span><span class="o">.</span><span class="n">side</span> <span class="ow">in</span> <span class="p">{</span><span class="s2">"FULL"</span><span class="p">,</span> <span class="s2">"LEFT"</span><span class="p">,</span> <span class="s2">"RIGHT"</span><span class="p">}</span> -</span><span id="L-189"><a href="#L-189"><span class="linenos">189</span></a> <span class="p">)</span> -</span><span id="L-190"><a href="#L-190"><span class="linenos">190</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="p">(</span> -</span><span id="L-191"><a href="#L-191"><span class="linenos">191</span></a> <span class="nb">isinstance</span><span class="p">(</span><span class="n">from_or_join</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">From</span><span class="p">)</span> -</span><span id="L-192"><a href="#L-192"><span class="linenos">192</span></a> <span class="ow">and</span> <span class="n">inner_select</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"where"</span><span class="p">)</span> -</span><span id="L-193"><a href="#L-193"><span class="linenos">193</span></a> <span class="ow">and</span> <span class="nb">any</span><span class="p">(</span> -</span><span id="L-194"><a href="#L-194"><span class="linenos">194</span></a> <span class="n">j</span><span class="o">.</span><span class="n">side</span> <span class="ow">in</span> <span class="p">{</span><span class="s2">"FULL"</span><span class="p">,</span> <span class="s2">"RIGHT"</span><span class="p">}</span> <span class="k">for</span> <span class="n">j</span> <span class="ow">in</span> <span class="n">outer_scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"joins"</span><span class="p">,</span> <span class="p">[])</span> -</span><span id="L-195"><a href="#L-195"><span class="linenos">195</span></a> <span class="p">)</span> -</span><span id="L-196"><a href="#L-196"><span class="linenos">196</span></a> <span class="p">)</span> -</span><span id="L-197"><a href="#L-197"><span class="linenos">197</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="n">_outer_select_joins_on_inner_select_join</span><span class="p">()</span> -</span><span id="L-198"><a href="#L-198"><span class="linenos">198</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="n">_is_a_window_expression_in_unmergable_operation</span><span class="p">()</span> -</span><span id="L-199"><a href="#L-199"><span class="linenos">199</span></a> <span class="p">)</span> -</span><span id="L-200"><a href="#L-200"><span class="linenos">200</span></a> +</span><span id="L-179"><a href="#L-179"><span class="linenos">179</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="n">outer_scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">is_star</span> +</span><span id="L-180"><a href="#L-180"><span class="linenos">180</span></a> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">inner_select</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Select</span><span class="p">)</span> +</span><span id="L-181"><a href="#L-181"><span class="linenos">181</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="nb">any</span><span class="p">(</span><span class="n">inner_select</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">arg</span><span class="p">)</span> <span class="k">for</span> <span class="n">arg</span> <span class="ow">in</span> <span class="n">UNMERGABLE_ARGS</span><span class="p">)</span> +</span><span id="L-182"><a href="#L-182"><span class="linenos">182</span></a> <span class="ow">and</span> <span class="n">inner_select</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"from"</span><span class="p">)</span> +</span><span id="L-183"><a href="#L-183"><span class="linenos">183</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="n">outer_scope</span><span class="o">.</span><span class="n">pivots</span> +</span><span id="L-184"><a href="#L-184"><span class="linenos">184</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="nb">any</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">AggFunc</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Select</span><span class="p">)</span> <span class="k">for</span> <span class="n">e</span> <span class="ow">in</span> <span class="n">inner_select</span><span class="o">.</span><span class="n">expressions</span><span class="p">)</span> +</span><span id="L-185"><a href="#L-185"><span class="linenos">185</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="p">(</span><span class="n">leave_tables_isolated</span> <span class="ow">and</span> <span class="nb">len</span><span class="p">(</span><span class="n">outer_scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="p">)</span> <span class="o">></span> <span class="mi">1</span><span class="p">)</span> +</span><span id="L-186"><a href="#L-186"><span class="linenos">186</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="p">(</span> +</span><span id="L-187"><a href="#L-187"><span class="linenos">187</span></a> <span class="nb">isinstance</span><span class="p">(</span><span class="n">from_or_join</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Join</span><span class="p">)</span> +</span><span id="L-188"><a href="#L-188"><span class="linenos">188</span></a> <span class="ow">and</span> <span class="n">inner_select</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"where"</span><span class="p">)</span> +</span><span id="L-189"><a href="#L-189"><span class="linenos">189</span></a> <span class="ow">and</span> <span class="n">from_or_join</span><span class="o">.</span><span class="n">side</span> <span class="ow">in</span> <span class="p">{</span><span class="s2">"FULL"</span><span class="p">,</span> <span class="s2">"LEFT"</span><span class="p">,</span> <span class="s2">"RIGHT"</span><span class="p">}</span> +</span><span id="L-190"><a href="#L-190"><span class="linenos">190</span></a> <span class="p">)</span> +</span><span id="L-191"><a href="#L-191"><span class="linenos">191</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="p">(</span> +</span><span id="L-192"><a href="#L-192"><span class="linenos">192</span></a> <span class="nb">isinstance</span><span class="p">(</span><span class="n">from_or_join</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">From</span><span class="p">)</span> +</span><span id="L-193"><a href="#L-193"><span class="linenos">193</span></a> <span class="ow">and</span> <span class="n">inner_select</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"where"</span><span class="p">)</span> +</span><span id="L-194"><a href="#L-194"><span class="linenos">194</span></a> <span class="ow">and</span> <span class="nb">any</span><span class="p">(</span> +</span><span id="L-195"><a href="#L-195"><span class="linenos">195</span></a> <span class="n">j</span><span class="o">.</span><span class="n">side</span> <span class="ow">in</span> <span class="p">{</span><span class="s2">"FULL"</span><span class="p">,</span> <span class="s2">"RIGHT"</span><span class="p">}</span> <span class="k">for</span> <span class="n">j</span> <span class="ow">in</span> <span class="n">outer_scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"joins"</span><span class="p">,</span> <span class="p">[])</span> +</span><span id="L-196"><a href="#L-196"><span class="linenos">196</span></a> <span class="p">)</span> +</span><span id="L-197"><a href="#L-197"><span class="linenos">197</span></a> <span class="p">)</span> +</span><span id="L-198"><a href="#L-198"><span class="linenos">198</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="n">_outer_select_joins_on_inner_select_join</span><span class="p">()</span> +</span><span id="L-199"><a href="#L-199"><span class="linenos">199</span></a> <span class="ow">and</span> <span class="ow">not</span> <span class="n">_is_a_window_expression_in_unmergable_operation</span><span class="p">()</span> +</span><span id="L-200"><a href="#L-200"><span class="linenos">200</span></a> <span class="p">)</span> </span><span id="L-201"><a href="#L-201"><span class="linenos">201</span></a> -</span><span id="L-202"><a href="#L-202"><span class="linenos">202</span></a><span class="k">def</span> <span class="nf">_rename_inner_sources</span><span class="p">(</span><span class="n">outer_scope</span><span class="p">,</span> <span class="n">inner_scope</span><span class="p">,</span> <span class="n">alias</span><span class="p">):</span> -</span><span id="L-203"><a href="#L-203"><span class="linenos">203</span></a><span class="w"> </span><span class="sd">"""</span> -</span><span id="L-204"><a href="#L-204"><span class="linenos">204</span></a><span class="sd"> Renames any sources in the inner query that conflict with names in the outer query.</span> -</span><span id="L-205"><a href="#L-205"><span class="linenos">205</span></a> -</span><span id="L-206"><a href="#L-206"><span class="linenos">206</span></a><span class="sd"> Args:</span> -</span><span id="L-207"><a href="#L-207"><span class="linenos">207</span></a><span class="sd"> outer_scope (sqlglot.optimizer.scope.Scope)</span> -</span><span id="L-208"><a href="#L-208"><span class="linenos">208</span></a><span class="sd"> inner_scope (sqlglot.optimizer.scope.Scope)</span> -</span><span id="L-209"><a href="#L-209"><span class="linenos">209</span></a><span class="sd"> alias (str)</span> -</span><span id="L-210"><a href="#L-210"><span class="linenos">210</span></a><span class="sd"> """</span> -</span><span id="L-211"><a href="#L-211"><span class="linenos">211</span></a> <span class="n">taken</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">outer_scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="p">)</span> -</span><span id="L-212"><a href="#L-212"><span class="linenos">212</span></a> <span class="n">conflicts</span> <span class="o">=</span> <span class="n">taken</span><span class="o">.</span><span class="n">intersection</span><span class="p">(</span><span class="nb">set</span><span class="p">(</span><span class="n">inner_scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="p">))</span> -</span><span id="L-213"><a href="#L-213"><span class="linenos">213</span></a> <span class="n">conflicts</span> <span class="o">-=</span> <span class="p">{</span><span class="n">alias</span><span class="p">}</span> -</span><span id="L-214"><a href="#L-214"><span class="linenos">214</span></a> -</span><span id="L-215"><a href="#L-215"><span class="linenos">215</span></a> <span class="k">for</span> <span class="n">conflict</span> <span class="ow">in</span> <span class="n">conflicts</span><span class="p">:</span> -</span><span id="L-216"><a href="#L-216"><span class="linenos">216</span></a> <span class="n">new_name</span> <span class="o">=</span> <span class="n">find_new_name</span><span class="p">(</span><span class="n">taken</span><span class="p">,</span> <span class="n">conflict</span><span class="p">)</span> -</span><span id="L-217"><a href="#L-217"><span class="linenos">217</span></a> -</span><span id="L-218"><a href="#L-218"><span class="linenos">218</span></a> <span class="n">source</span><span class="p">,</span> <span class="n">_</span> <span class="o">=</span> <span class="n">inner_scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="p">[</span><span class="n">conflict</span><span class="p">]</span> -</span><span id="L-219"><a href="#L-219"><span class="linenos">219</span></a> <span class="n">new_alias</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="n">new_name</span><span class="p">)</span> -</span><span id="L-220"><a href="#L-220"><span class="linenos">220</span></a> -</span><span id="L-221"><a href="#L-221"><span class="linenos">221</span></a> <span class="k">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">Subquery</span><span class="p">):</span> -</span><span id="L-222"><a href="#L-222"><span class="linenos">222</span></a> <span class="n">source</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"alias"</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">TableAlias</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">new_alias</span><span class="p">))</span> -</span><span id="L-223"><a href="#L-223"><span class="linenos">223</span></a> <span class="k">elif</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 class="ow">and</span> <span class="n">source</span><span class="o">.</span><span class="n">alias</span><span class="p">:</span> -</span><span id="L-224"><a href="#L-224"><span class="linenos">224</span></a> <span class="n">source</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"alias"</span><span class="p">,</span> <span class="n">new_alias</span><span class="p">)</span> -</span><span id="L-225"><a href="#L-225"><span class="linenos">225</span></a> <span class="k">elif</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-226"><a href="#L-226"><span class="linenos">226</span></a> <span class="n">source</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">alias_</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">new_alias</span><span class="p">))</span> -</span><span id="L-227"><a href="#L-227"><span class="linenos">227</span></a> -</span><span id="L-228"><a href="#L-228"><span class="linenos">228</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">inner_scope</span><span class="o">.</span><span class="n">source_columns</span><span class="p">(</span><span class="n">conflict</span><span class="p">):</span> -</span><span id="L-229"><a href="#L-229"><span class="linenos">229</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">new_name</span><span class="p">))</span> -</span><span id="L-230"><a href="#L-230"><span class="linenos">230</span></a> -</span><span id="L-231"><a href="#L-231"><span class="linenos">231</span></a> <span class="n">inner_scope</span><span class="o">.</span><span class="n">rename_source</span><span class="p">(</span><span class="n">conflict</span><span class="p">,</span> <span class="n">new_name</span><span class="p">)</span> -</span><span id="L-232"><a href="#L-232"><span class="linenos">232</span></a> +</span><span id="L-202"><a href="#L-202"><span class="linenos">202</span></a> +</span><span id="L-203"><a href="#L-203"><span class="linenos">203</span></a><span class="k">def</span> <span class="nf">_rename_inner_sources</span><span class="p">(</span><span class="n">outer_scope</span><span class="p">,</span> <span class="n">inner_scope</span><span class="p">,</span> <span class="n">alias</span><span class="p">):</span> +</span><span id="L-204"><a href="#L-204"><span class="linenos">204</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="L-205"><a href="#L-205"><span class="linenos">205</span></a><span class="sd"> Renames any sources in the inner query that conflict with names in the outer query.</span> +</span><span id="L-206"><a href="#L-206"><span class="linenos">206</span></a> +</span><span id="L-207"><a href="#L-207"><span class="linenos">207</span></a><span class="sd"> Args:</span> +</span><span id="L-208"><a href="#L-208"><span class="linenos">208</span></a><span class="sd"> outer_scope (sqlglot.optimizer.scope.Scope)</span> +</span><span id="L-209"><a href="#L-209"><span class="linenos">209</span></a><span class="sd"> inner_scope (sqlglot.optimizer.scope.Scope)</span> +</span><span id="L-210"><a href="#L-210"><span class="linenos">210</span></a><span class="sd"> alias (str)</span> +</span><span id="L-211"><a href="#L-211"><span class="linenos">211</span></a><span class="sd"> """</span> +</span><span id="L-212"><a href="#L-212"><span class="linenos">212</span></a> <span class="n">taken</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">outer_scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="p">)</span> +</span><span id="L-213"><a href="#L-213"><span class="linenos">213</span></a> <span class="n">conflicts</span> <span class="o">=</span> <span class="n">taken</span><span class="o">.</span><span class="n">intersection</span><span class="p">(</span><span class="nb">set</span><span class="p">(</span><span class="n">inner_scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="p">))</span> +</span><span id="L-214"><a href="#L-214"><span class="linenos">214</span></a> <span class="n">conflicts</span> <span class="o">-=</span> <span class="p">{</span><span class="n">alias</span><span class="p">}</span> +</span><span id="L-215"><a href="#L-215"><span class="linenos">215</span></a> +</span><span id="L-216"><a href="#L-216"><span class="linenos">216</span></a> <span class="k">for</span> <span class="n">conflict</span> <span class="ow">in</span> <span class="n">conflicts</span><span class="p">:</span> +</span><span id="L-217"><a href="#L-217"><span class="linenos">217</span></a> <span class="n">new_name</span> <span class="o">=</span> <span class="n">find_new_name</span><span class="p">(</span><span class="n">taken</span><span class="p">,</span> <span class="n">conflict</span><span class="p">)</span> +</span><span id="L-218"><a href="#L-218"><span class="linenos">218</span></a> +</span><span id="L-219"><a href="#L-219"><span class="linenos">219</span></a> <span class="n">source</span><span class="p">,</span> <span class="n">_</span> <span class="o">=</span> <span class="n">inner_scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="p">[</span><span class="n">conflict</span><span class="p">]</span> +</span><span id="L-220"><a href="#L-220"><span class="linenos">220</span></a> <span class="n">new_alias</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="n">new_name</span><span class="p">)</span> +</span><span id="L-221"><a href="#L-221"><span class="linenos">221</span></a> +</span><span id="L-222"><a href="#L-222"><span class="linenos">222</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">Subquery</span><span class="p">):</span> +</span><span id="L-223"><a href="#L-223"><span class="linenos">223</span></a> <span class="n">source</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"alias"</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">TableAlias</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">new_alias</span><span class="p">))</span> +</span><span id="L-224"><a href="#L-224"><span class="linenos">224</span></a> <span class="k">elif</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 class="ow">and</span> <span class="n">source</span><span class="o">.</span><span class="n">alias</span><span class="p">:</span> +</span><span id="L-225"><a href="#L-225"><span class="linenos">225</span></a> <span class="n">source</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"alias"</span><span class="p">,</span> <span class="n">new_alias</span><span class="p">)</span> +</span><span id="L-226"><a href="#L-226"><span class="linenos">226</span></a> <span class="k">elif</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-227"><a href="#L-227"><span class="linenos">227</span></a> <span class="n">source</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">alias_</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">new_alias</span><span class="p">))</span> +</span><span id="L-228"><a href="#L-228"><span class="linenos">228</span></a> +</span><span id="L-229"><a href="#L-229"><span class="linenos">229</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">inner_scope</span><span class="o">.</span><span class="n">source_columns</span><span class="p">(</span><span class="n">conflict</span><span class="p">):</span> +</span><span id="L-230"><a href="#L-230"><span class="linenos">230</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">new_name</span><span class="p">))</span> +</span><span id="L-231"><a href="#L-231"><span class="linenos">231</span></a> +</span><span id="L-232"><a href="#L-232"><span class="linenos">232</span></a> <span class="n">inner_scope</span><span class="o">.</span><span class="n">rename_source</span><span class="p">(</span><span class="n">conflict</span><span class="p">,</span> <span class="n">new_name</span><span class="p">)</span> </span><span id="L-233"><a href="#L-233"><span class="linenos">233</span></a> -</span><span id="L-234"><a href="#L-234"><span class="linenos">234</span></a><span class="k">def</span> <span class="nf">_merge_from</span><span class="p">(</span><span class="n">outer_scope</span><span class="p">,</span> <span class="n">inner_scope</span><span class="p">,</span> <span class="n">node_to_replace</span><span class="p">,</span> <span class="n">alias</span><span class="p">):</span> -</span><span id="L-235"><a href="#L-235"><span class="linenos">235</span></a><span class="w"> </span><span class="sd">"""</span> -</span><span id="L-236"><a href="#L-236"><span class="linenos">236</span></a><span class="sd"> Merge FROM clause of inner query into outer query.</span> -</span><span id="L-237"><a href="#L-237"><span class="linenos">237</span></a> -</span><span id="L-238"><a href="#L-238"><span class="linenos">238</span></a><span class="sd"> Args:</span> -</span><span id="L-239"><a href="#L-239"><span class="linenos">239</span></a><span class="sd"> outer_scope (sqlglot.optimizer.scope.Scope)</span> -</span><span id="L-240"><a href="#L-240"><span class="linenos">240</span></a><span class="sd"> inner_scope (sqlglot.optimizer.scope.Scope)</span> -</span><span id="L-241"><a href="#L-241"><span class="linenos">241</span></a><span class="sd"> node_to_replace (exp.Subquery|exp.Table)</span> -</span><span id="L-242"><a href="#L-242"><span class="linenos">242</span></a><span class="sd"> alias (str)</span> -</span><span id="L-243"><a href="#L-243"><span class="linenos">243</span></a><span class="sd"> """</span> -</span><span id="L-244"><a href="#L-244"><span class="linenos">244</span></a> <span class="n">new_subquery</span> <span class="o">=</span> <span class="n">inner_scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">"from"</span><span class="p">]</span><span class="o">.</span><span class="n">this</span> -</span><span id="L-245"><a href="#L-245"><span class="linenos">245</span></a> <span class="n">node_to_replace</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">new_subquery</span><span class="p">)</span> -</span><span id="L-246"><a href="#L-246"><span class="linenos">246</span></a> <span class="k">for</span> <span class="n">join_hint</span> <span class="ow">in</span> <span class="n">outer_scope</span><span class="o">.</span><span class="n">join_hints</span><span class="p">:</span> -</span><span id="L-247"><a href="#L-247"><span class="linenos">247</span></a> <span class="n">tables</span> <span class="o">=</span> <span class="n">join_hint</span><span class="o">.</span><span class="n">find_all</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Table</span><span class="p">)</span> -</span><span id="L-248"><a href="#L-248"><span class="linenos">248</span></a> <span class="k">for</span> <span class="n">table</span> <span class="ow">in</span> <span class="n">tables</span><span class="p">:</span> -</span><span id="L-249"><a href="#L-249"><span class="linenos">249</span></a> <span class="k">if</span> <span class="n">table</span><span class="o">.</span><span class="n">alias_or_name</span> <span class="o">==</span> <span class="n">node_to_replace</span><span class="o">.</span><span class="n">alias_or_name</span><span class="p">:</span> -</span><span id="L-250"><a href="#L-250"><span class="linenos">250</span></a> <span class="n">table</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"this"</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">new_subquery</span><span class="o">.</span><span class="n">alias_or_name</span><span class="p">))</span> -</span><span id="L-251"><a href="#L-251"><span class="linenos">251</span></a> <span class="n">outer_scope</span><span class="o">.</span><span class="n">remove_source</span><span class="p">(</span><span class="n">alias</span><span class="p">)</span> -</span><span id="L-252"><a href="#L-252"><span class="linenos">252</span></a> <span class="n">outer_scope</span><span class="o">.</span><span class="n">add_source</span><span class="p">(</span> -</span><span id="L-253"><a href="#L-253"><span class="linenos">253</span></a> <span class="n">new_subquery</span><span class="o">.</span><span class="n">alias_or_name</span><span class="p">,</span> <span class="n">inner_scope</span><span class="o">.</span><span class="n">sources</span><span class="p">[</span><span class="n">new_subquery</span><span class="o">.</span><span class="n">alias_or_name</span><span class="p">]</span> -</span><span id="L-254"><a href="#L-254"><span class="linenos">254</span></a> <span class="p">)</span> -</span><span id="L-255"><a href="#L-255"><span class="linenos">255</span></a> -</span><span id="L-256"><a href="#L-256"><span class="linenos">256</span></a> -</span><span id="L-257"><a href="#L-257"><span class="linenos">257</span></a><span class="k">def</span> <span class="nf">_merge_joins</span><span class="p">(</span><span class="n">outer_scope</span><span class="p">,</span> <span class="n">inner_scope</span><span class="p">,</span> <span class="n">from_or_join</span><span class="p">):</span> -</span><span id="L-258"><a href="#L-258"><span class="linenos">258</span></a><span class="w"> </span><span class="sd">"""</span> -</span><span id="L-259"><a href="#L-259"><span class="linenos">259</span></a><span class="sd"> Merge JOIN clauses of inner query into outer query.</span> -</span><span id="L-260"><a href="#L-260"><span class="linenos">260</span></a> -</span><span id="L-261"><a href="#L-261"><span class="linenos">261</span></a><span class="sd"> Args:</span> -</span><span id="L-262"><a href="#L-262"><span class="linenos">262</span></a><span class="sd"> outer_scope (sqlglot.optimizer.scope.Scope)</span> -</span><span id="L-263"><a href="#L-263"><span class="linenos">263</span></a><span class="sd"> inner_scope (sqlglot.optimizer.scope.Scope)</span> -</span><span id="L-264"><a href="#L-264"><span class="linenos">264</span></a><span class="sd"> from_or_join (exp.From|exp.Join)</span> -</span><span id="L-265"><a href="#L-265"><span class="linenos">265</span></a><span class="sd"> """</span> -</span><span id="L-266"><a href="#L-266"><span class="linenos">266</span></a> -</span><span id="L-267"><a href="#L-267"><span class="linenos">267</span></a> <span class="n">new_joins</span> <span class="o">=</span> <span class="p">[]</span> +</span><span id="L-234"><a href="#L-234"><span class="linenos">234</span></a> +</span><span id="L-235"><a href="#L-235"><span class="linenos">235</span></a><span class="k">def</span> <span class="nf">_merge_from</span><span class="p">(</span><span class="n">outer_scope</span><span class="p">,</span> <span class="n">inner_scope</span><span class="p">,</span> <span class="n">node_to_replace</span><span class="p">,</span> <span class="n">alias</span><span class="p">):</span> +</span><span id="L-236"><a href="#L-236"><span class="linenos">236</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="L-237"><a href="#L-237"><span class="linenos">237</span></a><span class="sd"> Merge FROM clause of inner query into outer query.</span> +</span><span id="L-238"><a href="#L-238"><span class="linenos">238</span></a> +</span><span id="L-239"><a href="#L-239"><span class="linenos">239</span></a><span class="sd"> Args:</span> +</span><span id="L-240"><a href="#L-240"><span class="linenos">240</span></a><span class="sd"> outer_scope (sqlglot.optimizer.scope.Scope)</span> +</span><span id="L-241"><a href="#L-241"><span class="linenos">241</span></a><span class="sd"> inner_scope (sqlglot.optimizer.scope.Scope)</span> +</span><span id="L-242"><a href="#L-242"><span class="linenos">242</span></a><span class="sd"> node_to_replace (exp.Subquery|exp.Table)</span> +</span><span id="L-243"><a href="#L-243"><span class="linenos">243</span></a><span class="sd"> alias (str)</span> +</span><span id="L-244"><a href="#L-244"><span class="linenos">244</span></a><span class="sd"> """</span> +</span><span id="L-245"><a href="#L-245"><span class="linenos">245</span></a> <span class="n">new_subquery</span> <span class="o">=</span> <span class="n">inner_scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">"from"</span><span class="p">]</span><span class="o">.</span><span class="n">this</span> +</span><span id="L-246"><a href="#L-246"><span class="linenos">246</span></a> <span class="n">new_subquery</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"joins"</span><span class="p">,</span> <span class="n">node_to_replace</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">"joins"</span><span class="p">))</span> +</span><span id="L-247"><a href="#L-247"><span class="linenos">247</span></a> <span class="n">node_to_replace</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">new_subquery</span><span class="p">)</span> +</span><span id="L-248"><a href="#L-248"><span class="linenos">248</span></a> <span class="k">for</span> <span class="n">join_hint</span> <span class="ow">in</span> <span class="n">outer_scope</span><span class="o">.</span><span class="n">join_hints</span><span class="p">:</span> +</span><span id="L-249"><a href="#L-249"><span class="linenos">249</span></a> <span class="n">tables</span> <span class="o">=</span> <span class="n">join_hint</span><span class="o">.</span><span class="n">find_all</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Table</span><span class="p">)</span> +</span><span id="L-250"><a href="#L-250"><span class="linenos">250</span></a> <span class="k">for</span> <span class="n">table</span> <span class="ow">in</span> <span class="n">tables</span><span class="p">:</span> +</span><span id="L-251"><a href="#L-251"><span class="linenos">251</span></a> <span class="k">if</span> <span class="n">table</span><span class="o">.</span><span class="n">alias_or_name</span> <span class="o">==</span> <span class="n">node_to_replace</span><span class="o">.</span><span class="n">alias_or_name</span><span class="p">:</span> +</span><span id="L-252"><a href="#L-252"><span class="linenos">252</span></a> <span class="n">table</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"this"</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="n">new_subquery</span><span class="o">.</span><span class="n">alias_or_name</span><span class="p">))</span> +</span><span id="L-253"><a href="#L-253"><span class="linenos">253</span></a> <span class="n">outer_scope</span><span class="o">.</span><span class="n">remove_source</span><span class="p">(</span><span class="n">alias</span><span class="p">)</span> +</span><span id="L-254"><a href="#L-254"><span class="linenos">254</span></a> <span class="n">outer_scope</span><span class="o">.</span><span class="n">add_source</span><span class="p">(</span> +</span><span id="L-255"><a href="#L-255"><span class="linenos">255</span></a> <span class="n">new_subquery</span><span class="o">.</span><span class="n">alias_or_name</span><span class="p">,</span> <span class="n">inner_scope</span><span class="o">.</span><span class="n">sources</span><span class="p">[</span><span class="n">new_subquery</span><span class="o">.</span><span class="n">alias_or_name</span><span class="p">]</span> +</span><span id="L-256"><a href="#L-256"><span class="linenos">256</span></a> <span class="p">)</span> +</span><span id="L-257"><a href="#L-257"><span class="linenos">257</span></a> +</span><span id="L-258"><a href="#L-258"><span class="linenos">258</span></a> +</span><span id="L-259"><a href="#L-259"><span class="linenos">259</span></a><span class="k">def</span> <span class="nf">_merge_joins</span><span class="p">(</span><span class="n">outer_scope</span><span class="p">,</span> <span class="n">inner_scope</span><span class="p">,</span> <span class="n">from_or_join</span><span class="p">):</span> +</span><span id="L-260"><a href="#L-260"><span class="linenos">260</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="L-261"><a href="#L-261"><span class="linenos">261</span></a><span class="sd"> Merge JOIN clauses of inner query into outer query.</span> +</span><span id="L-262"><a href="#L-262"><span class="linenos">262</span></a> +</span><span id="L-263"><a href="#L-263"><span class="linenos">263</span></a><span class="sd"> Args:</span> +</span><span id="L-264"><a href="#L-264"><span class="linenos">264</span></a><span class="sd"> outer_scope (sqlglot.optimizer.scope.Scope)</span> +</span><span id="L-265"><a href="#L-265"><span class="linenos">265</span></a><span class="sd"> inner_scope (sqlglot.optimizer.scope.Scope)</span> +</span><span id="L-266"><a href="#L-266"><span class="linenos">266</span></a><span class="sd"> from_or_join (exp.From|exp.Join)</span> +</span><span id="L-267"><a href="#L-267"><span class="linenos">267</span></a><span class="sd"> """</span> </span><span id="L-268"><a href="#L-268"><span class="linenos">268</span></a> -</span><span id="L-269"><a href="#L-269"><span class="linenos">269</span></a> <span class="n">joins</span> <span class="o">=</span> <span class="n">inner_scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"joins"</span><span class="p">)</span> <span class="ow">or</span> <span class="p">[]</span> -</span><span id="L-270"><a href="#L-270"><span class="linenos">270</span></a> <span class="k">for</span> <span class="n">join</span> <span class="ow">in</span> <span class="n">joins</span><span class="p">:</span> -</span><span id="L-271"><a href="#L-271"><span class="linenos">271</span></a> <span class="n">new_joins</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">join</span><span class="p">)</span> -</span><span id="L-272"><a href="#L-272"><span class="linenos">272</span></a> <span class="n">outer_scope</span><span class="o">.</span><span class="n">add_source</span><span class="p">(</span><span class="n">join</span><span class="o">.</span><span class="n">alias_or_name</span><span class="p">,</span> <span class="n">inner_scope</span><span class="o">.</span><span class="n">sources</span><span class="p">[</span><span class="n">join</span><span class="o">.</span><span class="n">alias_or_name</span><span class="p">])</span> -</span><span id="L-273"><a href="#L-273"><span class="linenos">273</span></a> -</span><span id="L-274"><a href="#L-274"><span class="linenos">274</span></a> <span class="k">if</span> <span class="n">new_joins</span><span class="p">:</span> -</span><span id="L-275"><a href="#L-275"><span class="linenos">275</span></a> <span class="n">outer_joins</span> <span class="o">=</span> <span class="n">outer_scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"joins"</span><span class="p">,</span> <span class="p">[])</span> -</span><span id="L-276"><a href="#L-276"><span class="linenos">276</span></a> -</span><span id="L-277"><a href="#L-277"><span class="linenos">277</span></a> <span class="c1"># Maintain the join order</span> -</span><span id="L-278"><a href="#L-278"><span class="linenos">278</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">from_or_join</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">From</span><span class="p">):</span> -</span><span id="L-279"><a href="#L-279"><span class="linenos">279</span></a> <span class="n">position</span> <span class="o">=</span> <span class="mi">0</span> -</span><span id="L-280"><a href="#L-280"><span class="linenos">280</span></a> <span class="k">else</span><span class="p">:</span> -</span><span id="L-281"><a href="#L-281"><span class="linenos">281</span></a> <span class="n">position</span> <span class="o">=</span> <span class="n">outer_joins</span><span class="o">.</span><span class="n">index</span><span class="p">(</span><span class="n">from_or_join</span><span class="p">)</span> <span class="o">+</span> <span class="mi">1</span> -</span><span id="L-282"><a href="#L-282"><span class="linenos">282</span></a> <span class="n">outer_joins</span><span class="p">[</span><span class="n">position</span><span class="p">:</span><span class="n">position</span><span class="p">]</span> <span class="o">=</span> <span class="n">new_joins</span> -</span><span id="L-283"><a href="#L-283"><span class="linenos">283</span></a> -</span><span id="L-284"><a href="#L-284"><span class="linenos">284</span></a> <span class="n">outer_scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"joins"</span><span class="p">,</span> <span class="n">outer_joins</span><span class="p">)</span> +</span><span id="L-269"><a href="#L-269"><span class="linenos">269</span></a> <span class="n">new_joins</span> <span class="o">=</span> <span class="p">[]</span> +</span><span id="L-270"><a href="#L-270"><span class="linenos">270</span></a> +</span><span id="L-271"><a href="#L-271"><span class="linenos">271</span></a> <span class="n">joins</span> <span class="o">=</span> <span class="n">inner_scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"joins"</span><span class="p">)</span> <span class="ow">or</span> <span class="p">[]</span> +</span><span id="L-272"><a href="#L-272"><span class="linenos">272</span></a> <span class="k">for</span> <span class="n">join</span> <span class="ow">in</span> <span class="n">joins</span><span class="p">:</span> +</span><span id="L-273"><a href="#L-273"><span class="linenos">273</span></a> <span class="n">new_joins</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">join</span><span class="p">)</span> +</span><span id="L-274"><a href="#L-274"><span class="linenos">274</span></a> <span class="n">outer_scope</span><span class="o">.</span><span class="n">add_source</span><span class="p">(</span><span class="n">join</span><span class="o">.</span><span class="n">alias_or_name</span><span class="p">,</span> <span class="n">inner_scope</span><span class="o">.</span><span class="n">sources</span><span class="p">[</span><span class="n">join</span><span class="o">.</span><span class="n">alias_or_name</span><span class="p">])</span> +</span><span id="L-275"><a href="#L-275"><span class="linenos">275</span></a> +</span><span id="L-276"><a href="#L-276"><span class="linenos">276</span></a> <span class="k">if</span> <span class="n">new_joins</span><span class="p">:</span> +</span><span id="L-277"><a href="#L-277"><span class="linenos">277</span></a> <span class="n">outer_joins</span> <span class="o">=</span> <span class="n">outer_scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"joins"</span><span class="p">,</span> <span class="p">[])</span> +</span><span id="L-278"><a href="#L-278"><span class="linenos">278</span></a> +</span><span id="L-279"><a href="#L-279"><span class="linenos">279</span></a> <span class="c1"># Maintain the join order</span> +</span><span id="L-280"><a href="#L-280"><span class="linenos">280</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">from_or_join</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">From</span><span class="p">):</span> +</span><span id="L-281"><a href="#L-281"><span class="linenos">281</span></a> <span class="n">position</span> <span class="o">=</span> <span class="mi">0</span> +</span><span id="L-282"><a href="#L-282"><span class="linenos">282</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="L-283"><a href="#L-283"><span class="linenos">283</span></a> <span class="n">position</span> <span class="o">=</span> <span class="n">outer_joins</span><span class="o">.</span><span class="n">index</span><span class="p">(</span><span class="n">from_or_join</span><span class="p">)</span> <span class="o">+</span> <span class="mi">1</span> +</span><span id="L-284"><a href="#L-284"><span class="linenos">284</span></a> <span class="n">outer_joins</span><span class="p">[</span><span class="n">position</span><span class="p">:</span><span class="n">position</span><span class="p">]</span> <span class="o">=</span> <span class="n">new_joins</span> </span><span id="L-285"><a href="#L-285"><span class="linenos">285</span></a> -</span><span id="L-286"><a href="#L-286"><span class="linenos">286</span></a> -</span><span id="L-287"><a href="#L-287"><span class="linenos">287</span></a><span class="k">def</span> <span class="nf">_merge_expressions</span><span class="p">(</span><span class="n">outer_scope</span><span class="p">,</span> <span class="n">inner_scope</span><span class="p">,</span> <span class="n">alias</span><span class="p">):</span> -</span><span id="L-288"><a href="#L-288"><span class="linenos">288</span></a><span class="w"> </span><span class="sd">"""</span> -</span><span id="L-289"><a href="#L-289"><span class="linenos">289</span></a><span class="sd"> Merge projections of inner query into outer query.</span> -</span><span id="L-290"><a href="#L-290"><span class="linenos">290</span></a> -</span><span id="L-291"><a href="#L-291"><span class="linenos">291</span></a><span class="sd"> Args:</span> -</span><span id="L-292"><a href="#L-292"><span class="linenos">292</span></a><span class="sd"> outer_scope (sqlglot.optimizer.scope.Scope)</span> -</span><span id="L-293"><a href="#L-293"><span class="linenos">293</span></a><span class="sd"> inner_scope (sqlglot.optimizer.scope.Scope)</span> -</span><span id="L-294"><a href="#L-294"><span class="linenos">294</span></a><span class="sd"> alias (str)</span> -</span><span id="L-295"><a href="#L-295"><span class="linenos">295</span></a><span class="sd"> """</span> -</span><span id="L-296"><a href="#L-296"><span class="linenos">296</span></a> <span class="c1"># Collect all columns that reference the alias of the inner query</span> -</span><span id="L-297"><a href="#L-297"><span class="linenos">297</span></a> <span class="n">outer_columns</span> <span class="o">=</span> <span class="n">defaultdict</span><span class="p">(</span><span class="nb">list</span><span class="p">)</span> -</span><span id="L-298"><a href="#L-298"><span class="linenos">298</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">outer_scope</span><span class="o">.</span><span class="n">columns</span><span class="p">:</span> -</span><span id="L-299"><a href="#L-299"><span class="linenos">299</span></a> <span class="k">if</span> <span class="n">column</span><span class="o">.</span><span class="n">table</span> <span class="o">==</span> <span class="n">alias</span><span class="p">:</span> -</span><span id="L-300"><a href="#L-300"><span class="linenos">300</span></a> <span class="n">outer_columns</span><span class="p">[</span><span class="n">column</span><span class="o">.</span><span class="n">name</span><span class="p">]</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">column</span><span class="p">)</span> -</span><span id="L-301"><a href="#L-301"><span class="linenos">301</span></a> -</span><span id="L-302"><a href="#L-302"><span class="linenos">302</span></a> <span class="c1"># Replace columns with the projection expression in the inner query</span> -</span><span id="L-303"><a href="#L-303"><span class="linenos">303</span></a> <span class="k">for</span> <span class="n">expression</span> <span class="ow">in</span> <span class="n">inner_scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">expressions</span><span class="p">:</span> -</span><span id="L-304"><a href="#L-304"><span class="linenos">304</span></a> <span class="n">projection_name</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">alias_or_name</span> -</span><span id="L-305"><a href="#L-305"><span class="linenos">305</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">projection_name</span><span class="p">:</span> -</span><span id="L-306"><a href="#L-306"><span class="linenos">306</span></a> <span class="k">continue</span> -</span><span id="L-307"><a href="#L-307"><span class="linenos">307</span></a> <span class="n">columns_to_replace</span> <span class="o">=</span> <span class="n">outer_columns</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">projection_name</span><span class="p">,</span> <span class="p">[])</span> -</span><span id="L-308"><a href="#L-308"><span class="linenos">308</span></a> -</span><span id="L-309"><a href="#L-309"><span class="linenos">309</span></a> <span class="n">expression</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">unalias</span><span class="p">()</span> -</span><span id="L-310"><a href="#L-310"><span class="linenos">310</span></a> <span class="n">must_wrap_expression</span> <span class="o">=</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">SAFE_TO_REPLACE_UNWRAPPED</span><span class="p">)</span> -</span><span id="L-311"><a href="#L-311"><span class="linenos">311</span></a> -</span><span id="L-312"><a href="#L-312"><span class="linenos">312</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">columns_to_replace</span><span class="p">:</span> -</span><span id="L-313"><a href="#L-313"><span class="linenos">313</span></a> <span class="c1"># Ensures we don't alter the intended operator precedence if there's additional</span> -</span><span id="L-314"><a href="#L-314"><span class="linenos">314</span></a> <span class="c1"># context surrounding the outer expression (i.e. it's not a simple projection).</span> -</span><span id="L-315"><a href="#L-315"><span class="linenos">315</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">column</span><span class="o">.</span><span class="n">parent</span><span class="p">,</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Unary</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Binary</span><span class="p">))</span> <span class="ow">and</span> <span class="n">must_wrap_expression</span><span class="p">:</span> -</span><span id="L-316"><a href="#L-316"><span class="linenos">316</span></a> <span class="n">expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">paren</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span> -</span><span id="L-317"><a href="#L-317"><span class="linenos">317</span></a> -</span><span id="L-318"><a href="#L-318"><span class="linenos">318</span></a> <span class="n">column</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">copy</span><span class="p">())</span> +</span><span id="L-286"><a href="#L-286"><span class="linenos">286</span></a> <span class="n">outer_scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"joins"</span><span class="p">,</span> <span class="n">outer_joins</span><span class="p">)</span> +</span><span id="L-287"><a href="#L-287"><span class="linenos">287</span></a> +</span><span id="L-288"><a href="#L-288"><span class="linenos">288</span></a> +</span><span id="L-289"><a href="#L-289"><span class="linenos">289</span></a><span class="k">def</span> <span class="nf">_merge_expressions</span><span class="p">(</span><span class="n">outer_scope</span><span class="p">,</span> <span class="n">inner_scope</span><span class="p">,</span> <span class="n">alias</span><span class="p">):</span> +</span><span id="L-290"><a href="#L-290"><span class="linenos">290</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="L-291"><a href="#L-291"><span class="linenos">291</span></a><span class="sd"> Merge projections of inner query into outer query.</span> +</span><span id="L-292"><a href="#L-292"><span class="linenos">292</span></a> +</span><span id="L-293"><a href="#L-293"><span class="linenos">293</span></a><span class="sd"> Args:</span> +</span><span id="L-294"><a href="#L-294"><span class="linenos">294</span></a><span class="sd"> outer_scope (sqlglot.optimizer.scope.Scope)</span> +</span><span id="L-295"><a href="#L-295"><span class="linenos">295</span></a><span class="sd"> inner_scope (sqlglot.optimizer.scope.Scope)</span> +</span><span id="L-296"><a href="#L-296"><span class="linenos">296</span></a><span class="sd"> alias (str)</span> +</span><span id="L-297"><a href="#L-297"><span class="linenos">297</span></a><span class="sd"> """</span> +</span><span id="L-298"><a href="#L-298"><span class="linenos">298</span></a> <span class="c1"># Collect all columns that reference the alias of the inner query</span> +</span><span id="L-299"><a href="#L-299"><span class="linenos">299</span></a> <span class="n">outer_columns</span> <span class="o">=</span> <span class="n">defaultdict</span><span class="p">(</span><span class="nb">list</span><span class="p">)</span> +</span><span id="L-300"><a href="#L-300"><span class="linenos">300</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">outer_scope</span><span class="o">.</span><span class="n">columns</span><span class="p">:</span> +</span><span id="L-301"><a href="#L-301"><span class="linenos">301</span></a> <span class="k">if</span> <span class="n">column</span><span class="o">.</span><span class="n">table</span> <span class="o">==</span> <span class="n">alias</span><span class="p">:</span> +</span><span id="L-302"><a href="#L-302"><span class="linenos">302</span></a> <span class="n">outer_columns</span><span class="p">[</span><span class="n">column</span><span class="o">.</span><span class="n">name</span><span class="p">]</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">column</span><span class="p">)</span> +</span><span id="L-303"><a href="#L-303"><span class="linenos">303</span></a> +</span><span id="L-304"><a href="#L-304"><span class="linenos">304</span></a> <span class="c1"># Replace columns with the projection expression in the inner query</span> +</span><span id="L-305"><a href="#L-305"><span class="linenos">305</span></a> <span class="k">for</span> <span class="n">expression</span> <span class="ow">in</span> <span class="n">inner_scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">expressions</span><span class="p">:</span> +</span><span id="L-306"><a href="#L-306"><span class="linenos">306</span></a> <span class="n">projection_name</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">alias_or_name</span> +</span><span id="L-307"><a href="#L-307"><span class="linenos">307</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">projection_name</span><span class="p">:</span> +</span><span id="L-308"><a href="#L-308"><span class="linenos">308</span></a> <span class="k">continue</span> +</span><span id="L-309"><a href="#L-309"><span class="linenos">309</span></a> <span class="n">columns_to_replace</span> <span class="o">=</span> <span class="n">outer_columns</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">projection_name</span><span class="p">,</span> <span class="p">[])</span> +</span><span id="L-310"><a href="#L-310"><span class="linenos">310</span></a> +</span><span id="L-311"><a href="#L-311"><span class="linenos">311</span></a> <span class="n">expression</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">unalias</span><span class="p">()</span> +</span><span id="L-312"><a href="#L-312"><span class="linenos">312</span></a> <span class="n">must_wrap_expression</span> <span class="o">=</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">SAFE_TO_REPLACE_UNWRAPPED</span><span class="p">)</span> +</span><span id="L-313"><a href="#L-313"><span class="linenos">313</span></a> +</span><span id="L-314"><a href="#L-314"><span class="linenos">314</span></a> <span class="k">for</span> <span class="n">column</span> <span class="ow">in</span> <span class="n">columns_to_replace</span><span class="p">:</span> +</span><span id="L-315"><a href="#L-315"><span class="linenos">315</span></a> <span class="c1"># Ensures we don't alter the intended operator precedence if there's additional</span> +</span><span id="L-316"><a href="#L-316"><span class="linenos">316</span></a> <span class="c1"># context surrounding the outer expression (i.e. it's not a simple projection).</span> +</span><span id="L-317"><a href="#L-317"><span class="linenos">317</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">column</span><span class="o">.</span><span class="n">parent</span><span class="p">,</span> <span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">Unary</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Binary</span><span class="p">))</span> <span class="ow">and</span> <span class="n">must_wrap_expression</span><span class="p">:</span> +</span><span id="L-318"><a href="#L-318"><span class="linenos">318</span></a> <span class="n">expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">paren</span><span class="p">(</span><span class="n">expression</span><span class="p">,</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span> </span><span id="L-319"><a href="#L-319"><span class="linenos">319</span></a> -</span><span id="L-320"><a href="#L-320"><span class="linenos">320</span></a> -</span><span id="L-321"><a href="#L-321"><span class="linenos">321</span></a><span class="k">def</span> <span class="nf">_merge_where</span><span class="p">(</span><span class="n">outer_scope</span><span class="p">,</span> <span class="n">inner_scope</span><span class="p">,</span> <span class="n">from_or_join</span><span class="p">):</span> -</span><span id="L-322"><a href="#L-322"><span class="linenos">322</span></a><span class="w"> </span><span class="sd">"""</span> -</span><span id="L-323"><a href="#L-323"><span class="linenos">323</span></a><span class="sd"> Merge WHERE clause of inner query into outer query.</span> -</span><span id="L-324"><a href="#L-324"><span class="linenos">324</span></a> -</span><span id="L-325"><a href="#L-325"><span class="linenos">325</span></a><span class="sd"> Args:</span> -</span><span id="L-326"><a href="#L-326"><span class="linenos">326</span></a><span class="sd"> outer_scope (sqlglot.optimizer.scope.Scope)</span> -</span><span id="L-327"><a href="#L-327"><span class="linenos">327</span></a><span class="sd"> inner_scope (sqlglot.optimizer.scope.Scope)</span> -</span><span id="L-328"><a href="#L-328"><span class="linenos">328</span></a><span class="sd"> from_or_join (exp.From|exp.Join)</span> -</span><span id="L-329"><a href="#L-329"><span class="linenos">329</span></a><span class="sd"> """</span> -</span><span id="L-330"><a href="#L-330"><span class="linenos">330</span></a> <span class="n">where</span> <span class="o">=</span> <span class="n">inner_scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"where"</span><span class="p">)</span> -</span><span id="L-331"><a href="#L-331"><span class="linenos">331</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">where</span> <span class="ow">or</span> <span class="ow">not</span> <span class="n">where</span><span class="o">.</span><span class="n">this</span><span class="p">:</span> -</span><span id="L-332"><a href="#L-332"><span class="linenos">332</span></a> <span class="k">return</span> -</span><span id="L-333"><a href="#L-333"><span class="linenos">333</span></a> -</span><span id="L-334"><a href="#L-334"><span class="linenos">334</span></a> <span class="n">expression</span> <span class="o">=</span> <span class="n">outer_scope</span><span class="o">.</span><span class="n">expression</span> +</span><span id="L-320"><a href="#L-320"><span class="linenos">320</span></a> <span class="n">column</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">copy</span><span class="p">())</span> +</span><span id="L-321"><a href="#L-321"><span class="linenos">321</span></a> +</span><span id="L-322"><a href="#L-322"><span class="linenos">322</span></a> +</span><span id="L-323"><a href="#L-323"><span class="linenos">323</span></a><span class="k">def</span> <span class="nf">_merge_where</span><span class="p">(</span><span class="n">outer_scope</span><span class="p">,</span> <span class="n">inner_scope</span><span class="p">,</span> <span class="n">from_or_join</span><span class="p">):</span> +</span><span id="L-324"><a href="#L-324"><span class="linenos">324</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="L-325"><a href="#L-325"><span class="linenos">325</span></a><span class="sd"> Merge WHERE clause of inner query into outer query.</span> +</span><span id="L-326"><a href="#L-326"><span class="linenos">326</span></a> +</span><span id="L-327"><a href="#L-327"><span class="linenos">327</span></a><span class="sd"> Args:</span> +</span><span id="L-328"><a href="#L-328"><span class="linenos">328</span></a><span class="sd"> outer_scope (sqlglot.optimizer.scope.Scope)</span> +</span><span id="L-329"><a href="#L-329"><span class="linenos">329</span></a><span class="sd"> inner_scope (sqlglot.optimizer.scope.Scope)</span> +</span><span id="L-330"><a href="#L-330"><span class="linenos">330</span></a><span class="sd"> from_or_join (exp.From|exp.Join)</span> +</span><span id="L-331"><a href="#L-331"><span class="linenos">331</span></a><span class="sd"> """</span> +</span><span id="L-332"><a href="#L-332"><span class="linenos">332</span></a> <span class="n">where</span> <span class="o">=</span> <span class="n">inner_scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"where"</span><span class="p">)</span> +</span><span id="L-333"><a href="#L-333"><span class="linenos">333</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">where</span> <span class="ow">or</span> <span class="ow">not</span> <span class="n">where</span><span class="o">.</span><span class="n">this</span><span class="p">:</span> +</span><span id="L-334"><a href="#L-334"><span class="linenos">334</span></a> <span class="k">return</span> </span><span id="L-335"><a href="#L-335"><span class="linenos">335</span></a> -</span><span id="L-336"><a href="#L-336"><span class="linenos">336</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">from_or_join</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Join</span><span class="p">):</span> -</span><span id="L-337"><a href="#L-337"><span class="linenos">337</span></a> <span class="c1"># Merge predicates from an outer join to the ON clause</span> -</span><span id="L-338"><a href="#L-338"><span class="linenos">338</span></a> <span class="c1"># if it only has columns that are already joined</span> -</span><span id="L-339"><a href="#L-339"><span class="linenos">339</span></a> <span class="n">from_</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"from"</span><span class="p">)</span> -</span><span id="L-340"><a href="#L-340"><span class="linenos">340</span></a> <span class="n">sources</span> <span class="o">=</span> <span class="p">{</span><span class="n">from_</span><span class="o">.</span><span class="n">alias_or_name</span><span class="p">}</span> <span class="k">if</span> <span class="n">from_</span> <span class="k">else</span> <span class="p">{}</span> -</span><span id="L-341"><a href="#L-341"><span class="linenos">341</span></a> -</span><span id="L-342"><a href="#L-342"><span class="linenos">342</span></a> <span class="k">for</span> <span class="n">join</span> <span class="ow">in</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">"joins"</span><span class="p">]:</span> -</span><span id="L-343"><a href="#L-343"><span class="linenos">343</span></a> <span class="n">source</span> <span class="o">=</span> <span class="n">join</span><span class="o">.</span><span class="n">alias_or_name</span> -</span><span id="L-344"><a href="#L-344"><span class="linenos">344</span></a> <span class="n">sources</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">source</span><span class="p">)</span> -</span><span id="L-345"><a href="#L-345"><span class="linenos">345</span></a> <span class="k">if</span> <span class="n">source</span> <span class="o">==</span> <span class="n">from_or_join</span><span class="o">.</span><span class="n">alias_or_name</span><span class="p">:</span> -</span><span id="L-346"><a href="#L-346"><span class="linenos">346</span></a> <span class="k">break</span> -</span><span id="L-347"><a href="#L-347"><span class="linenos">347</span></a> -</span><span id="L-348"><a href="#L-348"><span class="linenos">348</span></a> <span class="k">if</span> <span class="n">exp</span><span class="o">.</span><span class="n">column_table_names</span><span class="p">(</span><span class="n">where</span><span class="o">.</span><span class="n">this</span><span class="p">)</span> <span class="o"><=</span> <span class="n">sources</span><span class="p">:</span> -</span><span id="L-349"><a href="#L-349"><span class="linenos">349</span></a> <span class="n">from_or_join</span><span class="o">.</span><span class="n">on</span><span class="p">(</span><span class="n">where</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span> -</span><span id="L-350"><a href="#L-350"><span class="linenos">350</span></a> <span class="n">from_or_join</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"on"</span><span class="p">,</span> <span class="n">from_or_join</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"on"</span><span class="p">))</span> -</span><span id="L-351"><a href="#L-351"><span class="linenos">351</span></a> <span class="k">return</span> -</span><span id="L-352"><a href="#L-352"><span class="linenos">352</span></a> -</span><span id="L-353"><a href="#L-353"><span class="linenos">353</span></a> <span class="n">expression</span><span class="o">.</span><span class="n">where</span><span class="p">(</span><span class="n">where</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span> +</span><span id="L-336"><a href="#L-336"><span class="linenos">336</span></a> <span class="n">expression</span> <span class="o">=</span> <span class="n">outer_scope</span><span class="o">.</span><span class="n">expression</span> +</span><span id="L-337"><a href="#L-337"><span class="linenos">337</span></a> +</span><span id="L-338"><a href="#L-338"><span class="linenos">338</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">from_or_join</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Join</span><span class="p">):</span> +</span><span id="L-339"><a href="#L-339"><span class="linenos">339</span></a> <span class="c1"># Merge predicates from an outer join to the ON clause</span> +</span><span id="L-340"><a href="#L-340"><span class="linenos">340</span></a> <span class="c1"># if it only has columns that are already joined</span> +</span><span id="L-341"><a href="#L-341"><span class="linenos">341</span></a> <span class="n">from_</span> <span class="o">=</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"from"</span><span class="p">)</span> +</span><span id="L-342"><a href="#L-342"><span class="linenos">342</span></a> <span class="n">sources</span> <span class="o">=</span> <span class="p">{</span><span class="n">from_</span><span class="o">.</span><span class="n">alias_or_name</span><span class="p">}</span> <span class="k">if</span> <span class="n">from_</span> <span class="k">else</span> <span class="p">{}</span> +</span><span id="L-343"><a href="#L-343"><span class="linenos">343</span></a> +</span><span id="L-344"><a href="#L-344"><span class="linenos">344</span></a> <span class="k">for</span> <span class="n">join</span> <span class="ow">in</span> <span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="p">[</span><span class="s2">"joins"</span><span class="p">]:</span> +</span><span id="L-345"><a href="#L-345"><span class="linenos">345</span></a> <span class="n">source</span> <span class="o">=</span> <span class="n">join</span><span class="o">.</span><span class="n">alias_or_name</span> +</span><span id="L-346"><a href="#L-346"><span class="linenos">346</span></a> <span class="n">sources</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">source</span><span class="p">)</span> +</span><span id="L-347"><a href="#L-347"><span class="linenos">347</span></a> <span class="k">if</span> <span class="n">source</span> <span class="o">==</span> <span class="n">from_or_join</span><span class="o">.</span><span class="n">alias_or_name</span><span class="p">:</span> +</span><span id="L-348"><a href="#L-348"><span class="linenos">348</span></a> <span class="k">break</span> +</span><span id="L-349"><a href="#L-349"><span class="linenos">349</span></a> +</span><span id="L-350"><a href="#L-350"><span class="linenos">350</span></a> <span class="k">if</span> <span class="n">exp</span><span class="o">.</span><span class="n">column_table_names</span><span class="p">(</span><span class="n">where</span><span class="o">.</span><span class="n">this</span><span class="p">)</span> <span class="o"><=</span> <span class="n">sources</span><span class="p">:</span> +</span><span id="L-351"><a href="#L-351"><span class="linenos">351</span></a> <span class="n">from_or_join</span><span class="o">.</span><span class="n">on</span><span class="p">(</span><span class="n">where</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span> +</span><span id="L-352"><a href="#L-352"><span class="linenos">352</span></a> <span class="n">from_or_join</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"on"</span><span class="p">,</span> <span class="n">from_or_join</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"on"</span><span class="p">))</span> +</span><span id="L-353"><a href="#L-353"><span class="linenos">353</span></a> <span class="k">return</span> </span><span id="L-354"><a href="#L-354"><span class="linenos">354</span></a> -</span><span id="L-355"><a href="#L-355"><span class="linenos">355</span></a> -</span><span id="L-356"><a href="#L-356"><span class="linenos">356</span></a><span class="k">def</span> <span class="nf">_merge_order</span><span class="p">(</span><span class="n">outer_scope</span><span class="p">,</span> <span class="n">inner_scope</span><span class="p">):</span> -</span><span id="L-357"><a href="#L-357"><span class="linenos">357</span></a><span class="w"> </span><span class="sd">"""</span> -</span><span id="L-358"><a href="#L-358"><span class="linenos">358</span></a><span class="sd"> Merge ORDER clause of inner query into outer query.</span> -</span><span id="L-359"><a href="#L-359"><span class="linenos">359</span></a> -</span><span id="L-360"><a href="#L-360"><span class="linenos">360</span></a><span class="sd"> Args:</span> -</span><span id="L-361"><a href="#L-361"><span class="linenos">361</span></a><span class="sd"> outer_scope (sqlglot.optimizer.scope.Scope)</span> -</span><span id="L-362"><a href="#L-362"><span class="linenos">362</span></a><span class="sd"> inner_scope (sqlglot.optimizer.scope.Scope)</span> -</span><span id="L-363"><a href="#L-363"><span class="linenos">363</span></a><span class="sd"> """</span> -</span><span id="L-364"><a href="#L-364"><span class="linenos">364</span></a> <span class="k">if</span> <span class="p">(</span> -</span><span id="L-365"><a href="#L-365"><span class="linenos">365</span></a> <span class="nb">any</span><span class="p">(</span> -</span><span id="L-366"><a href="#L-366"><span class="linenos">366</span></a> <span class="n">outer_scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">arg</span><span class="p">)</span> <span class="k">for</span> <span class="n">arg</span> <span class="ow">in</span> <span class="p">[</span><span class="s2">"group"</span><span class="p">,</span> <span class="s2">"distinct"</span><span class="p">,</span> <span class="s2">"having"</span><span class="p">,</span> <span class="s2">"order"</span><span class="p">]</span> -</span><span id="L-367"><a href="#L-367"><span class="linenos">367</span></a> <span class="p">)</span> -</span><span id="L-368"><a href="#L-368"><span class="linenos">368</span></a> <span class="ow">or</span> <span class="nb">len</span><span class="p">(</span><span class="n">outer_scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="p">)</span> <span class="o">!=</span> <span class="mi">1</span> -</span><span id="L-369"><a href="#L-369"><span class="linenos">369</span></a> <span class="ow">or</span> <span class="nb">any</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">AggFunc</span><span class="p">)</span> <span class="k">for</span> <span class="n">expression</span> <span class="ow">in</span> <span class="n">outer_scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">expressions</span><span class="p">)</span> -</span><span id="L-370"><a href="#L-370"><span class="linenos">370</span></a> <span class="p">):</span> -</span><span id="L-371"><a href="#L-371"><span class="linenos">371</span></a> <span class="k">return</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="n">outer_scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"order"</span><span class="p">,</span> <span class="n">inner_scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"order"</span><span class="p">))</span> +</span><span id="L-355"><a href="#L-355"><span class="linenos">355</span></a> <span class="n">expression</span><span class="o">.</span><span class="n">where</span><span class="p">(</span><span class="n">where</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">copy</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span> +</span><span id="L-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><span id="L-358"><a href="#L-358"><span class="linenos">358</span></a><span class="k">def</span> <span class="nf">_merge_order</span><span class="p">(</span><span class="n">outer_scope</span><span class="p">,</span> <span class="n">inner_scope</span><span class="p">):</span> +</span><span id="L-359"><a href="#L-359"><span class="linenos">359</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="L-360"><a href="#L-360"><span class="linenos">360</span></a><span class="sd"> Merge ORDER clause of inner query into outer query.</span> +</span><span id="L-361"><a href="#L-361"><span class="linenos">361</span></a> +</span><span id="L-362"><a href="#L-362"><span class="linenos">362</span></a><span class="sd"> Args:</span> +</span><span id="L-363"><a href="#L-363"><span class="linenos">363</span></a><span class="sd"> outer_scope (sqlglot.optimizer.scope.Scope)</span> +</span><span id="L-364"><a href="#L-364"><span class="linenos">364</span></a><span class="sd"> inner_scope (sqlglot.optimizer.scope.Scope)</span> +</span><span id="L-365"><a href="#L-365"><span class="linenos">365</span></a><span class="sd"> """</span> +</span><span id="L-366"><a href="#L-366"><span class="linenos">366</span></a> <span class="k">if</span> <span class="p">(</span> +</span><span id="L-367"><a href="#L-367"><span class="linenos">367</span></a> <span class="nb">any</span><span class="p">(</span> +</span><span id="L-368"><a href="#L-368"><span class="linenos">368</span></a> <span class="n">outer_scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">arg</span><span class="p">)</span> <span class="k">for</span> <span class="n">arg</span> <span class="ow">in</span> <span class="p">[</span><span class="s2">"group"</span><span class="p">,</span> <span class="s2">"distinct"</span><span class="p">,</span> <span class="s2">"having"</span><span class="p">,</span> <span class="s2">"order"</span><span class="p">]</span> +</span><span id="L-369"><a href="#L-369"><span class="linenos">369</span></a> <span class="p">)</span> +</span><span id="L-370"><a href="#L-370"><span class="linenos">370</span></a> <span class="ow">or</span> <span class="nb">len</span><span class="p">(</span><span class="n">outer_scope</span><span class="o">.</span><span class="n">selected_sources</span><span class="p">)</span> <span class="o">!=</span> <span class="mi">1</span> +</span><span id="L-371"><a href="#L-371"><span class="linenos">371</span></a> <span class="ow">or</span> <span class="nb">any</span><span class="p">(</span><span class="n">expression</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="n">exp</span><span class="o">.</span><span class="n">AggFunc</span><span class="p">)</span> <span class="k">for</span> <span class="n">expression</span> <span class="ow">in</span> <span class="n">outer_scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">expressions</span><span class="p">)</span> +</span><span id="L-372"><a href="#L-372"><span class="linenos">372</span></a> <span class="p">):</span> +</span><span id="L-373"><a href="#L-373"><span class="linenos">373</span></a> <span class="k">return</span> </span><span id="L-374"><a href="#L-374"><span class="linenos">374</span></a> -</span><span id="L-375"><a href="#L-375"><span class="linenos">375</span></a> -</span><span id="L-376"><a href="#L-376"><span class="linenos">376</span></a><span class="k">def</span> <span class="nf">_merge_hints</span><span class="p">(</span><span class="n">outer_scope</span><span class="p">,</span> <span class="n">inner_scope</span><span class="p">):</span> -</span><span id="L-377"><a href="#L-377"><span class="linenos">377</span></a> <span class="n">inner_scope_hint</span> <span class="o">=</span> <span class="n">inner_scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"hint"</span><span class="p">)</span> -</span><span id="L-378"><a href="#L-378"><span class="linenos">378</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">inner_scope_hint</span><span class="p">:</span> -</span><span id="L-379"><a href="#L-379"><span class="linenos">379</span></a> <span class="k">return</span> -</span><span id="L-380"><a href="#L-380"><span class="linenos">380</span></a> <span class="n">outer_scope_hint</span> <span class="o">=</span> <span class="n">outer_scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"hint"</span><span class="p">)</span> -</span><span id="L-381"><a href="#L-381"><span class="linenos">381</span></a> <span class="k">if</span> <span class="n">outer_scope_hint</span><span class="p">:</span> -</span><span id="L-382"><a href="#L-382"><span class="linenos">382</span></a> <span class="k">for</span> <span class="n">hint_expression</span> <span class="ow">in</span> <span class="n">inner_scope_hint</span><span class="o">.</span><span class="n">expressions</span><span class="p">:</span> -</span><span id="L-383"><a href="#L-383"><span class="linenos">383</span></a> <span class="n">outer_scope_hint</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s2">"expressions"</span><span class="p">,</span> <span class="n">hint_expression</span><span class="p">)</span> -</span><span id="L-384"><a href="#L-384"><span class="linenos">384</span></a> <span class="k">else</span><span class="p">:</span> -</span><span id="L-385"><a href="#L-385"><span class="linenos">385</span></a> <span class="n">outer_scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"hint"</span><span class="p">,</span> <span class="n">inner_scope_hint</span><span class="p">)</span> -</span><span id="L-386"><a href="#L-386"><span class="linenos">386</span></a> -</span><span id="L-387"><a href="#L-387"><span class="linenos">387</span></a> -</span><span id="L-388"><a href="#L-388"><span class="linenos">388</span></a><span class="k">def</span> <span class="nf">_pop_cte</span><span class="p">(</span><span class="n">inner_scope</span><span class="p">):</span> -</span><span id="L-389"><a href="#L-389"><span class="linenos">389</span></a><span class="w"> </span><span class="sd">"""</span> -</span><span id="L-390"><a href="#L-390"><span class="linenos">390</span></a><span class="sd"> Remove CTE from the AST.</span> -</span><span id="L-391"><a href="#L-391"><span class="linenos">391</span></a> -</span><span id="L-392"><a href="#L-392"><span class="linenos">392</span></a><span class="sd"> Args:</span> -</span><span id="L-393"><a href="#L-393"><span class="linenos">393</span></a><span class="sd"> inner_scope (sqlglot.optimizer.scope.Scope)</span> -</span><span id="L-394"><a href="#L-394"><span class="linenos">394</span></a><span class="sd"> """</span> -</span><span id="L-395"><a href="#L-395"><span class="linenos">395</span></a> <span class="n">cte</span> <span class="o">=</span> <span class="n">inner_scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">parent</span> -</span><span id="L-396"><a href="#L-396"><span class="linenos">396</span></a> <span class="n">with_</span> <span class="o">=</span> <span class="n">cte</span><span class="o">.</span><span class="n">parent</span> -</span><span id="L-397"><a href="#L-397"><span class="linenos">397</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">with_</span><span class="o">.</span><span class="n">expressions</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span> -</span><span id="L-398"><a href="#L-398"><span class="linenos">398</span></a> <span class="n">with_</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span> -</span><span id="L-399"><a href="#L-399"><span class="linenos">399</span></a> <span class="k">else</span><span class="p">:</span> -</span><span id="L-400"><a href="#L-400"><span class="linenos">400</span></a> <span class="n">cte</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span> +</span><span id="L-375"><a href="#L-375"><span class="linenos">375</span></a> <span class="n">outer_scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"order"</span><span class="p">,</span> <span class="n">inner_scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"order"</span><span class="p">))</span> +</span><span id="L-376"><a href="#L-376"><span class="linenos">376</span></a> +</span><span id="L-377"><a href="#L-377"><span class="linenos">377</span></a> +</span><span id="L-378"><a href="#L-378"><span class="linenos">378</span></a><span class="k">def</span> <span class="nf">_merge_hints</span><span class="p">(</span><span class="n">outer_scope</span><span class="p">,</span> <span class="n">inner_scope</span><span class="p">):</span> +</span><span id="L-379"><a href="#L-379"><span class="linenos">379</span></a> <span class="n">inner_scope_hint</span> <span class="o">=</span> <span class="n">inner_scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"hint"</span><span class="p">)</span> +</span><span id="L-380"><a href="#L-380"><span class="linenos">380</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">inner_scope_hint</span><span class="p">:</span> +</span><span id="L-381"><a href="#L-381"><span class="linenos">381</span></a> <span class="k">return</span> +</span><span id="L-382"><a href="#L-382"><span class="linenos">382</span></a> <span class="n">outer_scope_hint</span> <span class="o">=</span> <span class="n">outer_scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"hint"</span><span class="p">)</span> +</span><span id="L-383"><a href="#L-383"><span class="linenos">383</span></a> <span class="k">if</span> <span class="n">outer_scope_hint</span><span class="p">:</span> +</span><span id="L-384"><a href="#L-384"><span class="linenos">384</span></a> <span class="k">for</span> <span class="n">hint_expression</span> <span class="ow">in</span> <span class="n">inner_scope_hint</span><span class="o">.</span><span class="n">expressions</span><span class="p">:</span> +</span><span id="L-385"><a href="#L-385"><span class="linenos">385</span></a> <span class="n">outer_scope_hint</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s2">"expressions"</span><span class="p">,</span> <span class="n">hint_expression</span><span class="p">)</span> +</span><span id="L-386"><a href="#L-386"><span class="linenos">386</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="L-387"><a href="#L-387"><span class="linenos">387</span></a> <span class="n">outer_scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">"hint"</span><span class="p">,</span> <span class="n">inner_scope_hint</span><span class="p">)</span> +</span><span id="L-388"><a href="#L-388"><span class="linenos">388</span></a> +</span><span id="L-389"><a href="#L-389"><span class="linenos">389</span></a> +</span><span id="L-390"><a href="#L-390"><span class="linenos">390</span></a><span class="k">def</span> <span class="nf">_pop_cte</span><span class="p">(</span><span class="n">inner_scope</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">"""</span> +</span><span id="L-392"><a href="#L-392"><span class="linenos">392</span></a><span class="sd"> Remove CTE from the AST.</span> +</span><span id="L-393"><a href="#L-393"><span class="linenos">393</span></a> +</span><span id="L-394"><a href="#L-394"><span class="linenos">394</span></a><span class="sd"> Args:</span> +</span><span id="L-395"><a href="#L-395"><span class="linenos">395</span></a><span class="sd"> inner_scope (sqlglot.optimizer.scope.Scope)</span> +</span><span id="L-396"><a href="#L-396"><span class="linenos">396</span></a><span class="sd"> """</span> +</span><span id="L-397"><a href="#L-397"><span class="linenos">397</span></a> <span class="n">cte</span> <span class="o">=</span> <span class="n">inner_scope</span><span class="o">.</span><span class="n">expression</span><span class="o">.</span><span class="n">parent</span> +</span><span id="L-398"><a href="#L-398"><span class="linenos">398</span></a> <span class="n">with_</span> <span class="o">=</span> <span class="n">cte</span><span class="o">.</span><span class="n">parent</span> +</span><span id="L-399"><a href="#L-399"><span class="linenos">399</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">with_</span><span class="o">.</span><span class="n">expressions</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span> +</span><span id="L-400"><a href="#L-400"><span class="linenos">400</span></a> <span class="n">with_</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span> +</span><span id="L-401"><a href="#L-401"><span class="linenos">401</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="L-402"><a href="#L-402"><span class="linenos">402</span></a> <span class="n">cte</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span> </span></pre></div> @@ -566,7 +568,7 @@ queries if it would result in multiple table selects in a single query:</p> <div class="attr variable"> <span class="name">UNMERGABLE_ARGS</span> = <input id="UNMERGABLE_ARGS-view-value" class="view-value-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> - <label class="view-value-button pdoc-button" for="UNMERGABLE_ARGS-view-value"></label><span class="default_value">{'into', 'windows', 'cluster', 'match', 'distinct', 'group', 'with', 'distribute', 'locks', 'laterals', 'sample', 'having', 'limit', 'sort', 'pivots', 'kind', 'qualify', 'settings', 'offset', 'format'}</span> + <label class="view-value-button pdoc-button" for="UNMERGABLE_ARGS-view-value"></label><span class="default_value">{'kind', 'offset', 'settings', 'locks', 'match', 'with', 'into', 'distribute', 'cluster', 'format', 'laterals', 'limit', 'group', 'sample', 'sort', 'windows', 'pivots', 'having', 'distinct', 'qualify'}</span> </div> |