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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.calcite.tools</a></div> |
| <h1 title="Interface RelBuilder.Config" class="title">Interface RelBuilder.Config</h1> |
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| <dt>Enclosing class:</dt> |
| <dd><a href="RelBuilder.html" title="class in org.apache.calcite.tools">RelBuilder</a></dd> |
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| <hr> |
| <pre>public static interface <span class="typeNameLabel">RelBuilder.Config</span></pre> |
| <div class="block">Configuration of RelBuilder. |
| |
| <p>It is immutable, and all fields are public. |
| |
| <p>Start with the <a href="#DEFAULT"><code>DEFAULT</code></a> instance, |
| and call <code>withXxx</code> methods to set its properties.</div> |
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| <caption><span>Fields</span><span class="tabEnd"> </span></caption> |
| <thead> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Field</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| </thead> |
| <tbody> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static <a href="RelBuilder.Config.html" title="interface in org.apache.calcite.tools">RelBuilder.Config</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#DEFAULT">DEFAULT</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">Default configuration.</div> |
| </td> |
| </tr> |
| </tbody> |
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| <div role="tablist" aria-orientation="horizontal"><button role="tab" aria-selected="true" aria-controls="memberSummary_tabpanel" tabindex="0" onkeydown="switchTab(event)" id="t0" class="activeTableTab">All Methods</button><button role="tab" aria-selected="false" aria-controls="memberSummary_tabpanel" tabindex="-1" onkeydown="switchTab(event)" id="t1" class="tableTab" onclick="show(1);">Static Methods</button><button role="tab" aria-selected="false" aria-controls="memberSummary_tabpanel" tabindex="-1" onkeydown="switchTab(event)" id="t2" class="tableTab" onclick="show(2);">Instance Methods</button><button role="tab" aria-selected="false" aria-controls="memberSummary_tabpanel" tabindex="-1" onkeydown="switchTab(event)" id="t3" class="tableTab" onclick="show(4);">Abstract Methods</button><button role="tab" aria-selected="false" aria-controls="memberSummary_tabpanel" tabindex="-1" onkeydown="switchTab(event)" id="t5" class="tableTab" onclick="show(16);">Default Methods</button><button role="tab" aria-selected="false" aria-controls="memberSummary_tabpanel" tabindex="-1" onkeydown="switchTab(event)" id="t6" class="tableTab" onclick="show(32);">Deprecated Methods</button></div> |
| <div id="memberSummary_tabpanel" role="tabpanel"> |
| <table aria-labelledby="t0"> |
| <thead> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Method</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| </thead> |
| <tbody> |
| <tr class="altColor" id="i0"> |
| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#aggregateUnique()">aggregateUnique</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Whether to create an Aggregate even if we know that the input is |
| already unique; default false.</div> |
| </td> |
| </tr> |
| <tr class="rowColor" id="i1"> |
| <td class="colFirst"><code>int</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#bloat()">bloat</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Controls whether to merge two <a href="../rel/core/Project.html" title="class in org.apache.calcite.rel.core"><code>Project</code></a> operators when inlining |
| expressions causes complexity to increase.</div> |
| </td> |
| </tr> |
| <tr class="altColor" id="i2"> |
| <td class="colFirst"><code>static <a href="RelBuilder.ConfigBuilder.html" title="class in org.apache.calcite.tools">RelBuilder.ConfigBuilder</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#builder()">builder</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span></div> |
| </td> |
| </tr> |
| <tr class="rowColor" id="i3"> |
| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#dedupAggregateCalls()">dedupAggregateCalls</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Whether <a href="RelBuilder.html#aggregate(org.apache.calcite.tools.RelBuilder.GroupKey,org.apache.calcite.tools.RelBuilder.AggCall...)"><code>RelBuilder.aggregate(org.apache.calcite.tools.RelBuilder.GroupKey, org.apache.calcite.tools.RelBuilder.AggCall...)</code></a> should eliminate duplicate |
| aggregate calls; default true.</div> |
| </td> |
| </tr> |
| <tr class="altColor" id="i4"> |
| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#pruneInputOfAggregate()">pruneInputOfAggregate</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Whether <a href="RelBuilder.html#aggregate(org.apache.calcite.tools.RelBuilder.GroupKey,org.apache.calcite.tools.RelBuilder.AggCall...)"><code>RelBuilder.aggregate(org.apache.calcite.tools.RelBuilder.GroupKey, org.apache.calcite.tools.RelBuilder.AggCall...)</code></a> should prune unused |
| input columns; default true.</div> |
| </td> |
| </tr> |
| <tr class="rowColor" id="i5"> |
| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#pushJoinCondition()">pushJoinCondition</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Whether to push down join conditions; default false (but |
| <a href="../sql2rel/SqlToRelConverter.html#config()"><code>SqlToRelConverter.config()</code></a> by default sets this to true).</div> |
| </td> |
| </tr> |
| <tr class="altColor" id="i6"> |
| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#simplify()">simplify</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Whether to simplify expressions; default true.</div> |
| </td> |
| </tr> |
| <tr class="rowColor" id="i7"> |
| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#simplifyLimit()">simplifyLimit</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Whether to simplify LIMIT 0 to an empty relation; default true.</div> |
| </td> |
| </tr> |
| <tr class="altColor" id="i8"> |
| <td class="colFirst"><code>default <a href="RelBuilder.ConfigBuilder.html" title="class in org.apache.calcite.tools">RelBuilder.ConfigBuilder</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#toBuilder()">toBuilder</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span></div> |
| </td> |
| </tr> |
| <tr class="rowColor" id="i9"> |
| <td class="colFirst"><code><a href="RelBuilder.Config.html" title="interface in org.apache.calcite.tools">RelBuilder.Config</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#withAggregateUnique(boolean)">withAggregateUnique</a></span>​(boolean aggregateUnique)</code></th> |
| <td class="colLast"> |
| <div class="block">Sets <a href="#aggregateUnique()"><code>aggregateUnique()</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="altColor" id="i10"> |
| <td class="colFirst"><code><a href="RelBuilder.Config.html" title="interface in org.apache.calcite.tools">RelBuilder.Config</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#withBloat(int)">withBloat</a></span>​(int bloat)</code></th> |
| <td class="colLast"> |
| <div class="block">Sets <a href="#bloat()"><code>bloat()</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="rowColor" id="i11"> |
| <td class="colFirst"><code><a href="RelBuilder.Config.html" title="interface in org.apache.calcite.tools">RelBuilder.Config</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#withDedupAggregateCalls(boolean)">withDedupAggregateCalls</a></span>​(boolean dedupAggregateCalls)</code></th> |
| <td class="colLast"> |
| <div class="block">Sets <a href="#dedupAggregateCalls()"><code>dedupAggregateCalls()</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="altColor" id="i12"> |
| <td class="colFirst"><code><a href="RelBuilder.Config.html" title="interface in org.apache.calcite.tools">RelBuilder.Config</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#withPruneInputOfAggregate(boolean)">withPruneInputOfAggregate</a></span>​(boolean pruneInputOfAggregate)</code></th> |
| <td class="colLast"> |
| <div class="block">Sets <a href="#pruneInputOfAggregate()"><code>pruneInputOfAggregate()</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="rowColor" id="i13"> |
| <td class="colFirst"><code><a href="RelBuilder.Config.html" title="interface in org.apache.calcite.tools">RelBuilder.Config</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#withPushJoinCondition(boolean)">withPushJoinCondition</a></span>​(boolean pushJoinCondition)</code></th> |
| <td class="colLast"> |
| <div class="block">Sets <a href="#pushJoinCondition()"><code>pushJoinCondition()</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="altColor" id="i14"> |
| <td class="colFirst"><code><a href="RelBuilder.Config.html" title="interface in org.apache.calcite.tools">RelBuilder.Config</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#withSimplify(boolean)">withSimplify</a></span>​(boolean simplify)</code></th> |
| <td class="colLast"> |
| <div class="block">Sets <a href="#simplify()"><code>simplify()</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="rowColor" id="i15"> |
| <td class="colFirst"><code><a href="RelBuilder.Config.html" title="interface in org.apache.calcite.tools">RelBuilder.Config</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#withSimplifyLimit(boolean)">withSimplifyLimit</a></span>​(boolean simplifyLimit)</code></th> |
| <td class="colLast"> |
| <div class="block">Sets <a href="#simplifyLimit()"><code>simplifyLimit()</code></a>.</div> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| </div> |
| </section> |
| </li> |
| </ul> |
| </section> |
| <section class="details"> |
| <ul class="blockList"> |
| <!-- ============ FIELD DETAIL =========== --> |
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| </a> |
| <h2>Field Details</h2> |
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| <section class="detail"> |
| <h3><a id="DEFAULT">DEFAULT</a></h3> |
| <div class="memberSignature"><span class="modifiers">static final</span> <span class="returnType"><a href="RelBuilder.Config.html" title="interface in org.apache.calcite.tools">RelBuilder.Config</a></span> <span class="memberName">DEFAULT</span></div> |
| <div class="block">Default configuration.</div> |
| </section> |
| </li> |
| </ul> |
| </section> |
| </li> |
| <!-- ============ METHOD DETAIL ========== --> |
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| <h3><a id="builder()">builder</a></h3> |
| <div class="memberSignature"><span class="annotations"><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang" class="externalLink">@Deprecated</a> |
| </span><span class="modifiers">static</span> <span class="returnType"><a href="RelBuilder.ConfigBuilder.html" title="class in org.apache.calcite.tools">RelBuilder.ConfigBuilder</a></span> <span class="memberName">builder</span>()</div> |
| <div class="deprecationBlock"><span class="deprecatedLabel">Deprecated.</span></div> |
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| <h3><a id="toBuilder()">toBuilder</a></h3> |
| <div class="memberSignature"><span class="annotations"><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang" class="externalLink">@Deprecated</a> |
| </span><span class="modifiers">default</span> <span class="returnType"><a href="RelBuilder.ConfigBuilder.html" title="class in org.apache.calcite.tools">RelBuilder.ConfigBuilder</a></span> <span class="memberName">toBuilder</span>()</div> |
| <div class="deprecationBlock"><span class="deprecatedLabel">Deprecated.</span></div> |
| </section> |
| </li> |
| <li class="blockList"> |
| <section class="detail"> |
| <h3><a id="bloat()">bloat</a></h3> |
| <div class="memberSignature"><span class="returnType">int</span> <span class="memberName">bloat</span>()</div> |
| <div class="block">Controls whether to merge two <a href="../rel/core/Project.html" title="class in org.apache.calcite.rel.core"><code>Project</code></a> operators when inlining |
| expressions causes complexity to increase. |
| |
| <p>Usually merging projects is beneficial, but occasionally the |
| result is more complex than the original projects. Consider: |
| |
| <pre> |
| P: Project(a+b+c AS x, d+e+f AS y, g+h+i AS z) # complexity 15 |
| Q: Project(x*y*z AS p, x-y-z AS q) # complexity 10 |
| R: Project((a+b+c)*(d+e+f)*(g+h+i) AS s, |
| (a+b+c)-(d+e+f)-(g+h+i) AS t) # complexity 34 |
| </pre> |
| |
| The complexity of an expression is the number of nodes (leaves and |
| operators). For example, <code>a+b+c</code> has complexity 5 (3 field |
| references and 2 calls): |
| |
| <pre> |
| + |
| / \ |
| + c |
| / \ |
| a b |
| </pre> |
| |
| <p>A negative value never allows merges. |
| |
| <p>A zero or positive value, <code>bloat</code>, allows a merge if complexity |
| of the result is less than or equal to the sum of the complexity of the |
| originals plus <code>bloat</code>. |
| |
| <p>The default value, 100, allows a moderate increase in complexity but |
| prevents cases where complexity would run away into the millions and run |
| out of memory. Moderate complexity is OK; the implementation, say via |
| <a href="../adapter/enumerable/EnumerableCalc.html" title="class in org.apache.calcite.adapter.enumerable"><code>EnumerableCalc</code></a>, will often |
| gather common sub-expressions and compute them only once.</div> |
| </section> |
| </li> |
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| <section class="detail"> |
| <h3><a id="withBloat(int)">withBloat</a></h3> |
| <div class="memberSignature"><span class="returnType"><a href="RelBuilder.Config.html" title="interface in org.apache.calcite.tools">RelBuilder.Config</a></span> <span class="memberName">withBloat</span>​(<span class="arguments">int bloat)</span></div> |
| <div class="block">Sets <a href="#bloat()"><code>bloat()</code></a>.</div> |
| </section> |
| </li> |
| <li class="blockList"> |
| <section class="detail"> |
| <h3><a id="dedupAggregateCalls()">dedupAggregateCalls</a></h3> |
| <div class="memberSignature"><span class="returnType">boolean</span> <span class="memberName">dedupAggregateCalls</span>()</div> |
| <div class="block">Whether <a href="RelBuilder.html#aggregate(org.apache.calcite.tools.RelBuilder.GroupKey,org.apache.calcite.tools.RelBuilder.AggCall...)"><code>RelBuilder.aggregate(org.apache.calcite.tools.RelBuilder.GroupKey, org.apache.calcite.tools.RelBuilder.AggCall...)</code></a> should eliminate duplicate |
| aggregate calls; default true.</div> |
| </section> |
| </li> |
| <li class="blockList"> |
| <section class="detail"> |
| <h3><a id="withDedupAggregateCalls(boolean)">withDedupAggregateCalls</a></h3> |
| <div class="memberSignature"><span class="returnType"><a href="RelBuilder.Config.html" title="interface in org.apache.calcite.tools">RelBuilder.Config</a></span> <span class="memberName">withDedupAggregateCalls</span>​(<span class="arguments">boolean dedupAggregateCalls)</span></div> |
| <div class="block">Sets <a href="#dedupAggregateCalls()"><code>dedupAggregateCalls()</code></a>.</div> |
| </section> |
| </li> |
| <li class="blockList"> |
| <section class="detail"> |
| <h3><a id="pruneInputOfAggregate()">pruneInputOfAggregate</a></h3> |
| <div class="memberSignature"><span class="returnType">boolean</span> <span class="memberName">pruneInputOfAggregate</span>()</div> |
| <div class="block">Whether <a href="RelBuilder.html#aggregate(org.apache.calcite.tools.RelBuilder.GroupKey,org.apache.calcite.tools.RelBuilder.AggCall...)"><code>RelBuilder.aggregate(org.apache.calcite.tools.RelBuilder.GroupKey, org.apache.calcite.tools.RelBuilder.AggCall...)</code></a> should prune unused |
| input columns; default true.</div> |
| </section> |
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| <h3><a id="withPruneInputOfAggregate(boolean)">withPruneInputOfAggregate</a></h3> |
| <div class="memberSignature"><span class="returnType"><a href="RelBuilder.Config.html" title="interface in org.apache.calcite.tools">RelBuilder.Config</a></span> <span class="memberName">withPruneInputOfAggregate</span>​(<span class="arguments">boolean pruneInputOfAggregate)</span></div> |
| <div class="block">Sets <a href="#pruneInputOfAggregate()"><code>pruneInputOfAggregate()</code></a>.</div> |
| </section> |
| </li> |
| <li class="blockList"> |
| <section class="detail"> |
| <h3><a id="pushJoinCondition()">pushJoinCondition</a></h3> |
| <div class="memberSignature"><span class="returnType">boolean</span> <span class="memberName">pushJoinCondition</span>()</div> |
| <div class="block">Whether to push down join conditions; default false (but |
| <a href="../sql2rel/SqlToRelConverter.html#config()"><code>SqlToRelConverter.config()</code></a> by default sets this to true).</div> |
| </section> |
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| <h3><a id="withPushJoinCondition(boolean)">withPushJoinCondition</a></h3> |
| <div class="memberSignature"><span class="returnType"><a href="RelBuilder.Config.html" title="interface in org.apache.calcite.tools">RelBuilder.Config</a></span> <span class="memberName">withPushJoinCondition</span>​(<span class="arguments">boolean pushJoinCondition)</span></div> |
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| <h3><a id="simplify()">simplify</a></h3> |
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| <div class="block">Whether to simplify expressions; default true.</div> |
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| <h3><a id="withSimplify(boolean)">withSimplify</a></h3> |
| <div class="memberSignature"><span class="returnType"><a href="RelBuilder.Config.html" title="interface in org.apache.calcite.tools">RelBuilder.Config</a></span> <span class="memberName">withSimplify</span>​(<span class="arguments">boolean simplify)</span></div> |
| <div class="block">Sets <a href="#simplify()"><code>simplify()</code></a>.</div> |
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| <h3><a id="simplifyLimit()">simplifyLimit</a></h3> |
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| <div class="block">Whether to simplify LIMIT 0 to an empty relation; default true.</div> |
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| <h3><a id="withSimplifyLimit(boolean)">withSimplifyLimit</a></h3> |
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| <div class="block">Sets <a href="#simplifyLimit()"><code>simplifyLimit()</code></a>.</div> |
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| <div class="memberSignature"><span class="returnType">boolean</span> <span class="memberName">aggregateUnique</span>()</div> |
| <div class="block">Whether to create an Aggregate even if we know that the input is |
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| <h3><a id="withAggregateUnique(boolean)">withAggregateUnique</a></h3> |
| <div class="memberSignature"><span class="returnType"><a href="RelBuilder.Config.html" title="interface in org.apache.calcite.tools">RelBuilder.Config</a></span> <span class="memberName">withAggregateUnique</span>​(<span class="arguments">boolean aggregateUnique)</span></div> |
| <div class="block">Sets <a href="#aggregateUnique()"><code>aggregateUnique()</code></a>.</div> |
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