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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.calcite.plan.volcano</a></div> |
| <h2 title="Class RelSubset" class="title">Class RelSubset</h2> |
| </div> |
| <div class="contentContainer"> |
| <ul class="inheritance"> |
| <li>java.lang.Object</li> |
| <li> |
| <ul class="inheritance"> |
| <li><a href="../../rel/AbstractRelNode.html" title="class in org.apache.calcite.rel">org.apache.calcite.rel.AbstractRelNode</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.calcite.plan.volcano.RelSubset</li> |
| </ul> |
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| <dt>All Implemented Interfaces:</dt> |
| <dd><code>java.lang.Cloneable</code>, <code><a href="../RelOptNode.html" title="interface in org.apache.calcite.plan">RelOptNode</a></code>, <code><a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></code></dd> |
| </dl> |
| <hr> |
| <pre>public class <span class="typeNameLabel">RelSubset</span> |
| extends <a href="../../rel/AbstractRelNode.html" title="class in org.apache.calcite.rel">AbstractRelNode</a></pre> |
| <div class="block">Subset of an equivalence class where all relational expressions have the |
| same physical properties. |
| |
| <p>Physical properties are instances of the <a href="../RelTraitSet.html" title="class in org.apache.calcite.plan"><code>RelTraitSet</code></a>, and consist |
| of traits such as calling convention and collation (sort-order). |
| |
| <p>For some traits, a relational expression can have more than one instance. |
| For example, R can be sorted on both [X] and [Y, Z]. In which case, R would |
| belong to the sub-sets for [X] and [Y, Z]; and also the leading edges [Y] and |
| [].</div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel"><code>RelNode</code></a>, |
| <a href="RelSet.html" title="class in org.apache.calcite.plan.volcano"><code>RelSet</code></a>, |
| <a href="../RelTrait.html" title="interface in org.apache.calcite.plan"><code>RelTrait</code></a></dd> |
| </dl> |
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| <h3>Nested Class Summary</h3> |
| <table class="memberSummary"> |
| <caption><span>Nested Classes</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Class</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>(package private) static class </code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="RelSubset.CheapestPlanReplacer.html" title="class in org.apache.calcite.plan.volcano">RelSubset.CheapestPlanReplacer</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">Visitor which walks over a tree of <a href="RelSet.html" title="class in org.apache.calcite.plan.volcano"><code>RelSet</code></a>s, replacing each node |
| with the cheapest implementation of the expression.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>(package private) static class </code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="RelSubset.DeadEndFinder.html" title="class in org.apache.calcite.plan.volcano">RelSubset.DeadEndFinder</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">Identifies the leaf-most non-implementable nodes.</div> |
| </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a id="nested.classes.inherited.from.class.org.apache.calcite.rel.RelNode"> |
| <!-- --> |
| </a> |
| <h3>Nested classes/interfaces inherited from interface org.apache.calcite.rel.<a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></h3> |
| <code><a href="../../rel/RelNode.Context.html" title="interface in org.apache.calcite.rel">RelNode.Context</a></code></li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| <!-- =========== FIELD SUMMARY =========== --> |
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| <h3>Field Summary</h3> |
| <table class="memberSummary"> |
| <caption><span>Fields</span><span class="tabEnd"> </span></caption> |
| <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> |
| <tr class="altColor"> |
| <td class="colFirst"><code>(package private) <a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#best">best</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">best known plan</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>(package private) <a href="../RelOptCost.html" title="interface in org.apache.calcite.plan">RelOptCost</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#bestCost">bestCost</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">cost of best known plan (it may have improved since)</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>(package private) boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#boosted">boosted</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">Flag indicating whether this RelSubset's importance was artificially |
| boosted.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private static org.slf4j.Logger</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#LOGGER">LOGGER</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>(package private) <a href="RelSet.html" title="class in org.apache.calcite.plan.volcano">RelSet</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#set">set</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">The set this subset belongs to.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>(package private) long</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#timestamp">timestamp</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">Timestamp for metadata validity</div> |
| </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a id="fields.inherited.from.class.org.apache.calcite.rel.AbstractRelNode"> |
| <!-- --> |
| </a> |
| <h3>Fields inherited from class org.apache.calcite.rel.<a href="../../rel/AbstractRelNode.html" title="class in org.apache.calcite.rel">AbstractRelNode</a></h3> |
| <code><a href="../../rel/AbstractRelNode.html#digest">digest</a>, <a href="../../rel/AbstractRelNode.html#id">id</a>, <a href="../../rel/AbstractRelNode.html#rowType">rowType</a>, <a href="../../rel/AbstractRelNode.html#traitSet">traitSet</a></code></li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
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| <li class="blockList"><a id="constructor.summary"> |
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| <h3>Constructor Summary</h3> |
| <table class="memberSummary"> |
| <caption><span>Constructors</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Constructor</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr class="altColor"> |
| <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(org.apache.calcite.plan.RelOptCluster,org.apache.calcite.plan.volcano.RelSet,org.apache.calcite.plan.RelTraitSet)">RelSubset</a></span>​(<a href="../RelOptCluster.html" title="class in org.apache.calcite.plan">RelOptCluster</a> cluster, |
| <a href="RelSet.html" title="class in org.apache.calcite.plan.volcano">RelSet</a> set, |
| <a href="../RelTraitSet.html" title="class in org.apache.calcite.plan">RelTraitSet</a> traits)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| </table> |
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| <h3>Method Summary</h3> |
| <table class="memberSummary"> |
| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <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> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>(package private) void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#add(org.apache.calcite.rel.RelNode)">add</a></span>​(<a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> rel)</code></th> |
| <td class="colLast"> |
| <div class="block">Adds expression <code>rel</code> to this subset.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>(package private) <a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#buildCheapestPlan(org.apache.calcite.plan.volcano.VolcanoPlanner)">buildCheapestPlan</a></span>​(<a href="VolcanoPlanner.html" title="class in org.apache.calcite.plan.volcano">VolcanoPlanner</a> planner)</code></th> |
| <td class="colLast"> |
| <div class="block">Recursively builds a tree consisting of the cheapest plan at each node.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#collectVariablesSet(java.util.Set)">collectVariablesSet</a></span>​(java.util.Set<<a href="../../rel/core/CorrelationId.html" title="class in org.apache.calcite.rel.core">CorrelationId</a>> variableSet)</code></th> |
| <td class="colLast"> |
| <div class="block">Collects variables set by this expression.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#collectVariablesUsed(java.util.Set)">collectVariablesUsed</a></span>​(java.util.Set<<a href="../../rel/core/CorrelationId.html" title="class in org.apache.calcite.rel.core">CorrelationId</a>> variableSet)</code></th> |
| <td class="colLast"> |
| <div class="block">Collects variables known to be used by this expression or its |
| descendants.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>private void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#computeBestCost(org.apache.calcite.plan.RelOptPlanner)">computeBestCost</a></span>​(<a href="../RelOptPlanner.html" title="interface in org.apache.calcite.plan">RelOptPlanner</a> planner)</code></th> |
| <td class="colLast"> |
| <div class="block">Computes the best <a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel"><code>RelNode</code></a> in this subset.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>protected java.lang.String</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#computeDigest()">computeDigest</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Computes the digest.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code><a href="../RelOptCost.html" title="interface in org.apache.calcite.plan">RelOptCost</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#computeSelfCost(org.apache.calcite.plan.RelOptPlanner,org.apache.calcite.rel.metadata.RelMetadataQuery)">computeSelfCost</a></span>​(<a href="../RelOptPlanner.html" title="interface in org.apache.calcite.plan">RelOptPlanner</a> planner, |
| <a href="../../rel/metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a> mq)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the cost of this plan (not including children).</div> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code><a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#copy(org.apache.calcite.plan.RelTraitSet,java.util.List)">copy</a></span>​(<a href="../RelTraitSet.html" title="class in org.apache.calcite.plan">RelTraitSet</a> traitSet, |
| java.util.List<<a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>> inputs)</code></th> |
| <td class="colLast"> |
| <div class="block">Creates a copy of this relational expression, perhaps changing traits and |
| inputs.</div> |
| </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>protected <a href="../../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#deriveRowType()">deriveRowType</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code>double</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#estimateRowCount(org.apache.calcite.rel.metadata.RelMetadataQuery)">estimateRowCount</a></span>​(<a href="../../rel/metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a> mq)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns an estimate of the number of rows this relational expression will |
| return.</div> |
| </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#explain(org.apache.calcite.rel.RelWriter)">explain</a></span>​(<a href="../../rel/RelWriter.html" title="interface in org.apache.calcite.rel">RelWriter</a> pw)</code></th> |
| <td class="colLast"> |
| <div class="block">Describes the inputs and attributes of this relational expression.</div> |
| </td> |
| </tr> |
| <tr id="i11" class="rowColor"> |
| <td class="colFirst"><code><a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getBest()">getBest</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i12" class="altColor"> |
| <td class="colFirst"><code><a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getOriginal()">getOriginal</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i13" class="rowColor"> |
| <td class="colFirst"><code>java.util.Collection<<a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getParentRels()">getParentRels</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns a list of relational expressions one of whose children is this |
| subset.</div> |
| </td> |
| </tr> |
| <tr id="i14" class="altColor"> |
| <td class="colFirst"><code>(package private) java.util.Set<<a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getParents()">getParents</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the collection of RelNodes one of whose inputs is in this |
| subset.</div> |
| </td> |
| </tr> |
| <tr id="i15" class="rowColor"> |
| <td class="colFirst"><code>(package private) java.util.Set<<a href="RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getParentSubsets(org.apache.calcite.plan.volcano.VolcanoPlanner)">getParentSubsets</a></span>​(<a href="VolcanoPlanner.html" title="class in org.apache.calcite.plan.volcano">VolcanoPlanner</a> planner)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the collection of distinct subsets that contain a RelNode one |
| of whose inputs is in this subset.</div> |
| </td> |
| </tr> |
| <tr id="i16" class="altColor"> |
| <td class="colFirst"><code>java.util.List<<a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getRelList()">getRelList</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">As <a href="#getRels()"><code>getRels()</code></a> but returns a list.</div> |
| </td> |
| </tr> |
| <tr id="i17" class="rowColor"> |
| <td class="colFirst"><code>java.lang.Iterable<<a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getRels()">getRels</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the rel nodes in this rel subset.</div> |
| </td> |
| </tr> |
| <tr id="i18" class="altColor"> |
| <td class="colFirst"><code>(package private) <a href="RelSet.html" title="class in org.apache.calcite.plan.volcano">RelSet</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getSet()">getSet</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i19" class="rowColor"> |
| <td class="colFirst"><code>private static java.util.List<<a href="RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#inputSubsets(org.apache.calcite.rel.RelNode)">inputSubsets</a></span>​(<a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> parent)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i20" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#propagateBoostRemoval(org.apache.calcite.plan.volcano.VolcanoPlanner)">propagateBoostRemoval</a></span>​(<a href="VolcanoPlanner.html" title="class in org.apache.calcite.plan.volcano">VolcanoPlanner</a> planner)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i21" class="rowColor"> |
| <td class="colFirst"><code>(package private) void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#propagateCostImprovements(org.apache.calcite.plan.volcano.VolcanoPlanner,org.apache.calcite.rel.metadata.RelMetadataQuery,org.apache.calcite.rel.RelNode,java.util.Set)">propagateCostImprovements</a></span>​(<a href="VolcanoPlanner.html" title="class in org.apache.calcite.plan.volcano">VolcanoPlanner</a> planner, |
| <a href="../../rel/metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a> mq, |
| <a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> rel, |
| java.util.Set<<a href="RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>> activeSet)</code></th> |
| <td class="colLast"> |
| <div class="block">Checks whether a relexp has made its subset cheaper, and if it so, |
| recursively checks whether that subset's parents have gotten cheaper.</div> |
| </td> |
| </tr> |
| <tr id="i22" class="altColor"> |
| <td class="colFirst"><code>(package private) void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#propagateCostImprovements0(org.apache.calcite.plan.volcano.VolcanoPlanner,org.apache.calcite.rel.metadata.RelMetadataQuery,org.apache.calcite.rel.RelNode,java.util.Set)">propagateCostImprovements0</a></span>​(<a href="VolcanoPlanner.html" title="class in org.apache.calcite.plan.volcano">VolcanoPlanner</a> planner, |
| <a href="../../rel/metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a> mq, |
| <a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> rel, |
| java.util.Set<<a href="RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>> activeSet)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a id="methods.inherited.from.class.org.apache.calcite.rel.AbstractRelNode"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from class org.apache.calcite.rel.<a href="../../rel/AbstractRelNode.html" title="class in org.apache.calcite.rel">AbstractRelNode</a></h3> |
| <code><a href="../../rel/AbstractRelNode.html#accept(org.apache.calcite.rel.RelShuttle)">accept</a>, <a href="../../rel/AbstractRelNode.html#accept(org.apache.calcite.rex.RexShuttle)">accept</a>, <a href="../../rel/AbstractRelNode.html#childrenAccept(org.apache.calcite.rel.RelVisitor)">childrenAccept</a>, <a href="../../rel/AbstractRelNode.html#computeSelfCost(org.apache.calcite.plan.RelOptPlanner)">computeSelfCost</a>, <a href="../../rel/AbstractRelNode.html#equals(java.lang.Object)">equals</a>, <a href="../../rel/AbstractRelNode.html#explainTerms(org.apache.calcite.rel.RelWriter)">explainTerms</a>, <a href="../../rel/AbstractRelNode.html#getChildExps()">getChildExps</a>, <a href="../../rel/AbstractRelNode.html#getCluster()">getCluster</a>, <a href="../../rel/AbstractRelNode.html#getCollationList()">getCollationList</a>, <a href="../../rel/AbstractRelNode.html#getConvention()">getConvention</a>, <a href="../../rel/AbstractRelNode.html#getCorrelVariable()">getCorrelVariable</a>, <a href="../../rel/AbstractRelNode.html#getDescription()">getDescription</a>, <a href="../../rel/AbstractRelNode.html#getDigest()">getDigest</a>, <a href="../../rel/AbstractRelNode.html#getExpectedInputRowType(int)">getExpectedInputRowType</a>, <a href="../../rel/AbstractRelNode.html#getId()">getId</a>, <a href="../../rel/AbstractRelNode.html#getInput(int)">getInput</a>, <a href="../../rel/AbstractRelNode.html#getInputs()">getInputs</a>, <a href="../../rel/AbstractRelNode.html#getQuery()">getQuery</a>, <a href="../../rel/AbstractRelNode.html#getRelTypeName()">getRelTypeName</a>, <a href="../../rel/AbstractRelNode.html#getRows()">getRows</a>, <a href="../../rel/AbstractRelNode.html#getRowType()">getRowType</a>, <a href="../../rel/AbstractRelNode.html#getTable()">getTable</a>, <a href="../../rel/AbstractRelNode.html#getTraitSet()">getTraitSet</a>, <a href="../../rel/AbstractRelNode.html#getVariablesSet()">getVariablesSet</a>, <a href="../../rel/AbstractRelNode.html#getVariablesStopped()">getVariablesStopped</a>, <a href="../../rel/AbstractRelNode.html#hashCode()">hashCode</a>, <a href="../../rel/AbstractRelNode.html#isDistinct()">isDistinct</a>, <a href="../../rel/AbstractRelNode.html#isKey(org.apache.calcite.util.ImmutableBitSet)">isKey</a>, <a href="../../rel/AbstractRelNode.html#isValid(boolean)">isValid</a>, <a href="../../rel/AbstractRelNode.html#isValid(org.apache.calcite.util.Litmus,org.apache.calcite.rel.RelNode.Context)">isValid</a>, <a href="../../rel/AbstractRelNode.html#metadata(java.lang.Class,org.apache.calcite.rel.metadata.RelMetadataQuery)">metadata</a>, <a href="../../rel/AbstractRelNode.html#onRegister(org.apache.calcite.plan.RelOptPlanner)">onRegister</a>, <a href="../../rel/AbstractRelNode.html#recomputeDigest()">recomputeDigest</a>, <a href="../../rel/AbstractRelNode.html#register(org.apache.calcite.plan.RelOptPlanner)">register</a>, <a href="../../rel/AbstractRelNode.html#replaceInput(int,org.apache.calcite.rel.RelNode)">replaceInput</a>, <a href="../../rel/AbstractRelNode.html#sole(java.util.List)">sole</a>, <a href="../../rel/AbstractRelNode.html#toString()">toString</a></code></li> |
| </ul> |
| <ul class="blockList"> |
| <li class="blockList"><a id="methods.inherited.from.class.java.lang.Object"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from class java.lang.Object</h3> |
| <code>clone, finalize, getClass, notify, notifyAll, wait, wait, wait</code></li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- ============ FIELD DETAIL =========== --> |
| <section role="region"> |
| <ul class="blockList"> |
| <li class="blockList"><a id="field.detail"> |
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| </a> |
| <h3>Field Detail</h3> |
| <a id="LOGGER"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>LOGGER</h4> |
| <pre>private static final org.slf4j.Logger LOGGER</pre> |
| </li> |
| </ul> |
| <a id="bestCost"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>bestCost</h4> |
| <pre><a href="../RelOptCost.html" title="interface in org.apache.calcite.plan">RelOptCost</a> bestCost</pre> |
| <div class="block">cost of best known plan (it may have improved since)</div> |
| </li> |
| </ul> |
| <a id="set"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>set</h4> |
| <pre>final <a href="RelSet.html" title="class in org.apache.calcite.plan.volcano">RelSet</a> set</pre> |
| <div class="block">The set this subset belongs to.</div> |
| </li> |
| </ul> |
| <a id="best"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>best</h4> |
| <pre><a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> best</pre> |
| <div class="block">best known plan</div> |
| </li> |
| </ul> |
| <a id="timestamp"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>timestamp</h4> |
| <pre>long timestamp</pre> |
| <div class="block">Timestamp for metadata validity</div> |
| </li> |
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| <a id="boosted"> |
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| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>boosted</h4> |
| <pre>boolean boosted</pre> |
| <div class="block">Flag indicating whether this RelSubset's importance was artificially |
| boosted.</div> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| <section role="region"> |
| <ul class="blockList"> |
| <li class="blockList"><a id="constructor.detail"> |
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| </a> |
| <h3>Constructor Detail</h3> |
| <a id="<init>(org.apache.calcite.plan.RelOptCluster,org.apache.calcite.plan.volcano.RelSet,org.apache.calcite.plan.RelTraitSet)"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
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| <h4>RelSubset</h4> |
| <pre>RelSubset​(<a href="../RelOptCluster.html" title="class in org.apache.calcite.plan">RelOptCluster</a> cluster, |
| <a href="RelSet.html" title="class in org.apache.calcite.plan.volcano">RelSet</a> set, |
| <a href="../RelTraitSet.html" title="class in org.apache.calcite.plan">RelTraitSet</a> traits)</pre> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| <!-- ============ METHOD DETAIL ========== --> |
| <section role="region"> |
| <ul class="blockList"> |
| <li class="blockList"><a id="method.detail"> |
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| </a> |
| <h3>Method Detail</h3> |
| <a id="computeBestCost(org.apache.calcite.plan.RelOptPlanner)"> |
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| <h4>computeBestCost</h4> |
| <pre class="methodSignature">private void computeBestCost​(<a href="../RelOptPlanner.html" title="interface in org.apache.calcite.plan">RelOptPlanner</a> planner)</pre> |
| <div class="block">Computes the best <a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel"><code>RelNode</code></a> in this subset. |
| |
| <p>Only necessary when a subset is created in a set that has subsets that |
| subsume it. Rationale:</p> |
| |
| <ol> |
| <li>If the are no subsuming subsets, the subset is initially empty.</li> |
| <li>After creation, <code>best</code> and <code>bestCost</code> are maintained |
| incrementally by <a href="#propagateCostImprovements0(org.apache.calcite.plan.volcano.VolcanoPlanner,org.apache.calcite.rel.metadata.RelMetadataQuery,org.apache.calcite.rel.RelNode,java.util.Set)"><code>propagateCostImprovements0(org.apache.calcite.plan.volcano.VolcanoPlanner, org.apache.calcite.rel.metadata.RelMetadataQuery, org.apache.calcite.rel.RelNode, java.util.Set<org.apache.calcite.plan.volcano.RelSubset>)</code></a> and |
| <a href="RelSet.html#mergeWith(org.apache.calcite.plan.volcano.VolcanoPlanner,org.apache.calcite.plan.volcano.RelSet)"><code>RelSet.mergeWith(VolcanoPlanner, RelSet)</code></a>.</li> |
| </ol></div> |
| </li> |
| </ul> |
| <a id="getBest()"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getBest</h4> |
| <pre class="methodSignature">public <a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> getBest()</pre> |
| </li> |
| </ul> |
| <a id="getOriginal()"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getOriginal</h4> |
| <pre class="methodSignature">public <a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> getOriginal()</pre> |
| </li> |
| </ul> |
| <a id="copy(org.apache.calcite.plan.RelTraitSet,java.util.List)"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>copy</h4> |
| <pre class="methodSignature">public <a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> copy​(<a href="../RelTraitSet.html" title="class in org.apache.calcite.plan">RelTraitSet</a> traitSet, |
| java.util.List<<a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>> inputs)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../rel/RelNode.html#copy(org.apache.calcite.plan.RelTraitSet,java.util.List)">RelNode</a></code></span></div> |
| <div class="block">Creates a copy of this relational expression, perhaps changing traits and |
| inputs. |
| |
| <p>Sub-classes with other important attributes are encouraged to create |
| variants of this method with more parameters.</p></div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../rel/RelNode.html#copy(org.apache.calcite.plan.RelTraitSet,java.util.List)">copy</a></code> in interface <code><a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../rel/AbstractRelNode.html#copy(org.apache.calcite.plan.RelTraitSet,java.util.List)">copy</a></code> in class <code><a href="../../rel/AbstractRelNode.html" title="class in org.apache.calcite.rel">AbstractRelNode</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>traitSet</code> - Trait set</dd> |
| <dd><code>inputs</code> - Inputs</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Copy of this relational expression, substituting traits and |
| inputs</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="computeSelfCost(org.apache.calcite.plan.RelOptPlanner,org.apache.calcite.rel.metadata.RelMetadataQuery)"> |
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| </a> |
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| <h4>computeSelfCost</h4> |
| <pre class="methodSignature">public <a href="../RelOptCost.html" title="interface in org.apache.calcite.plan">RelOptCost</a> computeSelfCost​(<a href="../RelOptPlanner.html" title="interface in org.apache.calcite.plan">RelOptPlanner</a> planner, |
| <a href="../../rel/metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a> mq)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../rel/RelNode.html#computeSelfCost(org.apache.calcite.plan.RelOptPlanner,org.apache.calcite.rel.metadata.RelMetadataQuery)">RelNode</a></code></span></div> |
| <div class="block">Returns the cost of this plan (not including children). The base |
| implementation throws an error; derived classes should override. |
| |
| <p>NOTE jvs 29-Mar-2006: Don't call this method directly. Instead, use |
| <a href="../../rel/metadata/RelMetadataQuery.html#getNonCumulativeCost(org.apache.calcite.rel.RelNode)"><code>RelMetadataQuery.getNonCumulativeCost(org.apache.calcite.rel.RelNode)</code></a>, which gives plugins a |
| chance to override the rel's default ideas about cost.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../rel/RelNode.html#computeSelfCost(org.apache.calcite.plan.RelOptPlanner,org.apache.calcite.rel.metadata.RelMetadataQuery)">computeSelfCost</a></code> in interface <code><a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../rel/AbstractRelNode.html#computeSelfCost(org.apache.calcite.plan.RelOptPlanner,org.apache.calcite.rel.metadata.RelMetadataQuery)">computeSelfCost</a></code> in class <code><a href="../../rel/AbstractRelNode.html" title="class in org.apache.calcite.rel">AbstractRelNode</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>planner</code> - Planner for cost calculation</dd> |
| <dd><code>mq</code> - Metadata query</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Cost of this plan (not including children)</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="estimateRowCount(org.apache.calcite.rel.metadata.RelMetadataQuery)"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>estimateRowCount</h4> |
| <pre class="methodSignature">public double estimateRowCount​(<a href="../../rel/metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a> mq)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../rel/RelNode.html#estimateRowCount(org.apache.calcite.rel.metadata.RelMetadataQuery)">RelNode</a></code></span></div> |
| <div class="block">Returns an estimate of the number of rows this relational expression will |
| return. |
| |
| <p>NOTE jvs 29-Mar-2006: Don't call this method directly. Instead, use |
| <a href="../../rel/metadata/RelMetadataQuery.html#getRowCount(org.apache.calcite.rel.RelNode)"><code>RelMetadataQuery.getRowCount(org.apache.calcite.rel.RelNode)</code></a>, which gives plugins a chance to |
| override the rel's default ideas about row count.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../rel/RelNode.html#estimateRowCount(org.apache.calcite.rel.metadata.RelMetadataQuery)">estimateRowCount</a></code> in interface <code><a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../rel/AbstractRelNode.html#estimateRowCount(org.apache.calcite.rel.metadata.RelMetadataQuery)">estimateRowCount</a></code> in class <code><a href="../../rel/AbstractRelNode.html" title="class in org.apache.calcite.rel">AbstractRelNode</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>mq</code> - Metadata query</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Estimate of the number of rows this relational expression will |
| return</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="explain(org.apache.calcite.rel.RelWriter)"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>explain</h4> |
| <pre class="methodSignature">public void explain​(<a href="../../rel/RelWriter.html" title="interface in org.apache.calcite.rel">RelWriter</a> pw)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../rel/RelNode.html#explain(org.apache.calcite.rel.RelWriter)">RelNode</a></code></span></div> |
| <div class="block">Describes the inputs and attributes of this relational expression. |
| Each node should call <code>super.explain</code>, then call the |
| <a href="../../rel/RelWriter.html#input(java.lang.String,org.apache.calcite.rel.RelNode)"><code>RelWriter.input(String, RelNode)</code></a> |
| and |
| <a href="../../rel/externalize/RelWriterImpl.html#item(java.lang.String,java.lang.Object)"><code>RelWriterImpl.item(String, Object)</code></a> |
| methods for each input and attribute.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../rel/RelNode.html#explain(org.apache.calcite.rel.RelWriter)">explain</a></code> in interface <code><a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../rel/AbstractRelNode.html#explain(org.apache.calcite.rel.RelWriter)">explain</a></code> in class <code><a href="../../rel/AbstractRelNode.html" title="class in org.apache.calcite.rel">AbstractRelNode</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>pw</code> - Plan writer</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="computeDigest()"> |
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| </a> |
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| <h4>computeDigest</h4> |
| <pre class="methodSignature">protected java.lang.String computeDigest()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../../rel/AbstractRelNode.html#computeDigest()">AbstractRelNode</a></code></span></div> |
| <div class="block">Computes the digest. Does not modify this object.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../rel/AbstractRelNode.html#computeDigest()">computeDigest</a></code> in class <code><a href="../../rel/AbstractRelNode.html" title="class in org.apache.calcite.rel">AbstractRelNode</a></code></dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Digest</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="deriveRowType()"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>deriveRowType</h4> |
| <pre class="methodSignature">protected <a href="../../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> deriveRowType()</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../rel/AbstractRelNode.html#deriveRowType()">deriveRowType</a></code> in class <code><a href="../../rel/AbstractRelNode.html" title="class in org.apache.calcite.rel">AbstractRelNode</a></code></dd> |
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| <a id="getParents()"> |
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| <ul class="blockList"> |
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| <h4>getParents</h4> |
| <pre class="methodSignature">java.util.Set<<a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>> getParents()</pre> |
| <div class="block">Returns the collection of RelNodes one of whose inputs is in this |
| subset.</div> |
| </li> |
| </ul> |
| <a id="getParentSubsets(org.apache.calcite.plan.volcano.VolcanoPlanner)"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>getParentSubsets</h4> |
| <pre class="methodSignature">java.util.Set<<a href="RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>> getParentSubsets​(<a href="VolcanoPlanner.html" title="class in org.apache.calcite.plan.volcano">VolcanoPlanner</a> planner)</pre> |
| <div class="block">Returns the collection of distinct subsets that contain a RelNode one |
| of whose inputs is in this subset.</div> |
| </li> |
| </ul> |
| <a id="inputSubsets(org.apache.calcite.rel.RelNode)"> |
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| </a> |
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| <li class="blockList"> |
| <h4>inputSubsets</h4> |
| <pre class="methodSignature">private static java.util.List<<a href="RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>> inputSubsets​(<a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> parent)</pre> |
| </li> |
| </ul> |
| <a id="getParentRels()"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>getParentRels</h4> |
| <pre class="methodSignature">public java.util.Collection<<a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>> getParentRels()</pre> |
| <div class="block">Returns a list of relational expressions one of whose children is this |
| subset. The elements of the list are distinct.</div> |
| </li> |
| </ul> |
| <a id="getSet()"> |
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| </a> |
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| <h4>getSet</h4> |
| <pre class="methodSignature"><a href="RelSet.html" title="class in org.apache.calcite.plan.volcano">RelSet</a> getSet()</pre> |
| </li> |
| </ul> |
| <a id="add(org.apache.calcite.rel.RelNode)"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>add</h4> |
| <pre class="methodSignature">void add​(<a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> rel)</pre> |
| <div class="block">Adds expression <code>rel</code> to this subset.</div> |
| </li> |
| </ul> |
| <a id="buildCheapestPlan(org.apache.calcite.plan.volcano.VolcanoPlanner)"> |
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| </a> |
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| <h4>buildCheapestPlan</h4> |
| <pre class="methodSignature"><a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> buildCheapestPlan​(<a href="VolcanoPlanner.html" title="class in org.apache.calcite.plan.volcano">VolcanoPlanner</a> planner)</pre> |
| <div class="block">Recursively builds a tree consisting of the cheapest plan at each node.</div> |
| </li> |
| </ul> |
| <a id="propagateCostImprovements(org.apache.calcite.plan.volcano.VolcanoPlanner,org.apache.calcite.rel.metadata.RelMetadataQuery,org.apache.calcite.rel.RelNode,java.util.Set)"> |
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| <h4>propagateCostImprovements</h4> |
| <pre class="methodSignature">void propagateCostImprovements​(<a href="VolcanoPlanner.html" title="class in org.apache.calcite.plan.volcano">VolcanoPlanner</a> planner, |
| <a href="../../rel/metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a> mq, |
| <a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> rel, |
| java.util.Set<<a href="RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>> activeSet)</pre> |
| <div class="block">Checks whether a relexp has made its subset cheaper, and if it so, |
| recursively checks whether that subset's parents have gotten cheaper.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>planner</code> - Planner</dd> |
| <dd><code>mq</code> - Metadata query</dd> |
| <dd><code>rel</code> - Relational expression whose cost has improved</dd> |
| <dd><code>activeSet</code> - Set of active subsets, for cycle detection</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="propagateCostImprovements0(org.apache.calcite.plan.volcano.VolcanoPlanner,org.apache.calcite.rel.metadata.RelMetadataQuery,org.apache.calcite.rel.RelNode,java.util.Set)"> |
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| <h4>propagateCostImprovements0</h4> |
| <pre class="methodSignature">void propagateCostImprovements0​(<a href="VolcanoPlanner.html" title="class in org.apache.calcite.plan.volcano">VolcanoPlanner</a> planner, |
| <a href="../../rel/metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a> mq, |
| <a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> rel, |
| java.util.Set<<a href="RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>> activeSet)</pre> |
| </li> |
| </ul> |
| <a id="propagateBoostRemoval(org.apache.calcite.plan.volcano.VolcanoPlanner)"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>propagateBoostRemoval</h4> |
| <pre class="methodSignature">public void propagateBoostRemoval​(<a href="VolcanoPlanner.html" title="class in org.apache.calcite.plan.volcano">VolcanoPlanner</a> planner)</pre> |
| </li> |
| </ul> |
| <a id="collectVariablesUsed(java.util.Set)"> |
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| <ul class="blockList"> |
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| <h4>collectVariablesUsed</h4> |
| <pre class="methodSignature">public void collectVariablesUsed​(java.util.Set<<a href="../../rel/core/CorrelationId.html" title="class in org.apache.calcite.rel.core">CorrelationId</a>> variableSet)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../rel/RelNode.html#collectVariablesUsed(java.util.Set)">RelNode</a></code></span></div> |
| <div class="block">Collects variables known to be used by this expression or its |
| descendants. By default, no such information is available and must be |
| derived by analyzing sub-expressions, but some optimizer implementations |
| may insert special expressions which remember such information.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../rel/RelNode.html#collectVariablesUsed(java.util.Set)">collectVariablesUsed</a></code> in interface <code><a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../rel/AbstractRelNode.html#collectVariablesUsed(java.util.Set)">collectVariablesUsed</a></code> in class <code><a href="../../rel/AbstractRelNode.html" title="class in org.apache.calcite.rel">AbstractRelNode</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>variableSet</code> - receives variables used</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="collectVariablesSet(java.util.Set)"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>collectVariablesSet</h4> |
| <pre class="methodSignature">public void collectVariablesSet​(java.util.Set<<a href="../../rel/core/CorrelationId.html" title="class in org.apache.calcite.rel.core">CorrelationId</a>> variableSet)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../rel/RelNode.html#collectVariablesSet(java.util.Set)">RelNode</a></code></span></div> |
| <div class="block">Collects variables set by this expression. |
| TODO: is this required?</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../rel/RelNode.html#collectVariablesSet(java.util.Set)">collectVariablesSet</a></code> in interface <code><a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../rel/AbstractRelNode.html#collectVariablesSet(java.util.Set)">collectVariablesSet</a></code> in class <code><a href="../../rel/AbstractRelNode.html" title="class in org.apache.calcite.rel">AbstractRelNode</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>variableSet</code> - receives variables known to be set by</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getRels()"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getRels</h4> |
| <pre class="methodSignature">public java.lang.Iterable<<a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>> getRels()</pre> |
| <div class="block">Returns the rel nodes in this rel subset. All rels must have the same |
| traits and are logically equivalent.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>all the rels in the subset</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getRelList()"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>getRelList</h4> |
| <pre class="methodSignature">public java.util.List<<a href="../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>> getRelList()</pre> |
| <div class="block">As <a href="#getRels()"><code>getRels()</code></a> but returns a list.</div> |
| </li> |
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