diff options
Diffstat (limited to 'docs/sqlglot/optimizer/eliminate_joins.html')
| -rw-r--r-- | docs/sqlglot/optimizer/eliminate_joins.html | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/docs/sqlglot/optimizer/eliminate_joins.html b/docs/sqlglot/optimizer/eliminate_joins.html index de213e4..791cf92 100644 --- a/docs/sqlglot/optimizer/eliminate_joins.html +++ b/docs/sqlglot/optimizer/eliminate_joins.html @@ -93,7 +93,7 @@ </span><span id="L-32"><a href="#L-32"><span class="linenos"> 32</span></a> </span><span id="L-33"><a href="#L-33"><span class="linenos"> 33</span></a> <span class="c1"># Reverse the joins so we can remove chains of unused joins</span> </span><span id="L-34"><a href="#L-34"><span class="linenos"> 34</span></a> <span class="k">for</span> <span class="n">join</span> <span class="ow">in</span> <span class="nb">reversed</span><span class="p">(</span><span class="n">joins</span><span class="p">):</span> -</span><span id="L-35"><a href="#L-35"><span class="linenos"> 35</span></a> <span class="n">alias</span> <span class="o">=</span> <span class="n">join</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">alias_or_name</span> +</span><span id="L-35"><a href="#L-35"><span class="linenos"> 35</span></a> <span class="n">alias</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-36"><a href="#L-36"><span class="linenos"> 36</span></a> <span class="k">if</span> <span class="n">_should_eliminate_join</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="n">join</span><span class="p">,</span> <span class="n">alias</span><span class="p">):</span> </span><span id="L-37"><a href="#L-37"><span class="linenos"> 37</span></a> <span class="n">join</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span> </span><span id="L-38"><a href="#L-38"><span class="linenos"> 38</span></a> <span class="n">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> @@ -187,7 +187,7 @@ </span><span id="L-126"><a href="#L-126"><span class="linenos">126</span></a><span class="sd"> tuple[list[str], list[str], exp.Expression]:</span> </span><span id="L-127"><a href="#L-127"><span class="linenos">127</span></a><span class="sd"> Tuple of (source key, join key, remaining predicate)</span> </span><span id="L-128"><a href="#L-128"><span class="linenos">128</span></a><span class="sd"> """</span> -</span><span id="L-129"><a href="#L-129"><span class="linenos">129</span></a> <span class="n">name</span> <span class="o">=</span> <span class="n">join</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">alias_or_name</span> +</span><span id="L-129"><a href="#L-129"><span class="linenos">129</span></a> <span class="n">name</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-130"><a href="#L-130"><span class="linenos">130</span></a> <span class="n">on</span> <span class="o">=</span> <span class="p">(</span><span class="n">join</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"on"</span><span class="p">)</span> <span class="ow">or</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">())</span><span class="o">.</span><span class="n">copy</span><span class="p">()</span> </span><span id="L-131"><a href="#L-131"><span class="linenos">131</span></a> <span class="n">source_key</span> <span class="o">=</span> <span class="p">[]</span> </span><span id="L-132"><a href="#L-132"><span class="linenos">132</span></a> <span class="n">join_key</span> <span class="o">=</span> <span class="p">[]</span> @@ -284,7 +284,7 @@ </span><span id="eliminate_joins-33"><a href="#eliminate_joins-33"><span class="linenos">33</span></a> </span><span id="eliminate_joins-34"><a href="#eliminate_joins-34"><span class="linenos">34</span></a> <span class="c1"># Reverse the joins so we can remove chains of unused joins</span> </span><span id="eliminate_joins-35"><a href="#eliminate_joins-35"><span class="linenos">35</span></a> <span class="k">for</span> <span class="n">join</span> <span class="ow">in</span> <span class="nb">reversed</span><span class="p">(</span><span class="n">joins</span><span class="p">):</span> -</span><span id="eliminate_joins-36"><a href="#eliminate_joins-36"><span class="linenos">36</span></a> <span class="n">alias</span> <span class="o">=</span> <span class="n">join</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">alias_or_name</span> +</span><span id="eliminate_joins-36"><a href="#eliminate_joins-36"><span class="linenos">36</span></a> <span class="n">alias</span> <span class="o">=</span> <span class="n">join</span><span class="o">.</span><span class="n">alias_or_name</span> </span><span id="eliminate_joins-37"><a href="#eliminate_joins-37"><span class="linenos">37</span></a> <span class="k">if</span> <span class="n">_should_eliminate_join</span><span class="p">(</span><span class="n">scope</span><span class="p">,</span> <span class="n">join</span><span class="p">,</span> <span class="n">alias</span><span class="p">):</span> </span><span id="eliminate_joins-38"><a href="#eliminate_joins-38"><span class="linenos">38</span></a> <span class="n">join</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span> </span><span id="eliminate_joins-39"><a href="#eliminate_joins-39"><span class="linenos">39</span></a> <span class="n">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> @@ -345,7 +345,7 @@ </span><span id="join_condition-127"><a href="#join_condition-127"><span class="linenos">127</span></a><span class="sd"> tuple[list[str], list[str], exp.Expression]:</span> </span><span id="join_condition-128"><a href="#join_condition-128"><span class="linenos">128</span></a><span class="sd"> Tuple of (source key, join key, remaining predicate)</span> </span><span id="join_condition-129"><a href="#join_condition-129"><span class="linenos">129</span></a><span class="sd"> """</span> -</span><span id="join_condition-130"><a href="#join_condition-130"><span class="linenos">130</span></a> <span class="n">name</span> <span class="o">=</span> <span class="n">join</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">alias_or_name</span> +</span><span id="join_condition-130"><a href="#join_condition-130"><span class="linenos">130</span></a> <span class="n">name</span> <span class="o">=</span> <span class="n">join</span><span class="o">.</span><span class="n">alias_or_name</span> </span><span id="join_condition-131"><a href="#join_condition-131"><span class="linenos">131</span></a> <span class="n">on</span> <span class="o">=</span> <span class="p">(</span><span class="n">join</span><span class="o">.</span><span class="n">args</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"on"</span><span class="p">)</span> <span class="ow">or</span> <span class="n">exp</span><span class="o">.</span><span class="n">true</span><span class="p">())</span><span class="o">.</span><span class="n">copy</span><span class="p">()</span> </span><span id="join_condition-132"><a href="#join_condition-132"><span class="linenos">132</span></a> <span class="n">source_key</span> <span class="o">=</span> <span class="p">[]</span> </span><span id="join_condition-133"><a href="#join_condition-133"><span class="linenos">133</span></a> <span class="n">join_key</span> <span class="o">=</span> <span class="p">[]</span> |