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| <div class="subTitle">org.apache.calcite.plan.volcano</div> |
| <h2 title="类 VolcanoPlanner" class="title">类 VolcanoPlanner</h2> |
| </div> |
| <div class="contentContainer"> |
| <ul class="inheritance"> |
| <li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="java.lang中的类或接口">java.lang.Object</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li><a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html" title="org.apache.calcite.plan中的类">org.apache.calcite.plan.AbstractRelOptPlanner</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.calcite.plan.volcano.VolcanoPlanner</li> |
| </ul> |
| </li> |
| </ul> |
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| <div class="description"> |
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| <dl> |
| <dt>所有已实现的接口:</dt> |
| <dd><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html" title="org.apache.calcite.plan中的接口">RelOptPlanner</a></dd> |
| </dl> |
| <hr> |
| <br> |
| <pre>public class <span class="typeNameLabel">VolcanoPlanner</span> |
| extends <a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html" title="org.apache.calcite.plan中的类">AbstractRelOptPlanner</a></pre> |
| <div class="block">VolcanoPlanner optimizes queries by transforming expressions selectively |
| according to a dynamic programming algorithm.</div> |
| </li> |
| </ul> |
| </div> |
| <div class="summary"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- ======== NESTED CLASS SUMMARY ======== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="nested.class.summary"> |
| <!-- --> |
| </a> |
| <h3>嵌套类概要</h3> |
| <ul class="blockList"> |
| <li class="blockList"><a name="nested.classes.inherited.from.class.org.apache.calcite.plan.RelOptPlanner"> |
| <!-- --> |
| </a> |
| <h3>从接口继承的嵌套类/接口 org.apache.calcite.plan.<a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html" title="org.apache.calcite.plan中的接口">RelOptPlanner</a></h3> |
| <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.CannotPlanException.html" title="org.apache.calcite.plan中的类">RelOptPlanner.CannotPlanException</a>, <a href="../../../../../org/apache/calcite/plan/RelOptPlanner.Executor.html" title="org.apache.calcite.plan中的接口">RelOptPlanner.Executor</a></code></li> |
| </ul> |
| </li> |
| </ul> |
| <!-- =========== FIELD SUMMARY =========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="field.summary"> |
| <!-- --> |
| </a> |
| <h3>字段概要</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="字段概要表, 列表字段和解释"> |
| <caption><span>字段</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">限定符和类型</th> |
| <th class="colLast" scope="col">字段和说明</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#ambitious">ambitious</a></span></code> |
| <div class="block">If true, the planner keeps applying rules as long as they continue to |
| reduce the cost.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected static double</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#COST_IMPROVEMENT">COST_IMPROVEMENT</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#impatient">impatient</a></span></code> |
| <div class="block">If true, and if <a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#ambitious"><code>ambitious</code></a> is true, the planner waits a finite |
| number of iterations for the cost to improve.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected <a href="../../../../../org/apache/calcite/plan/volcano/RelSubset.html" title="org.apache.calcite.plan.volcano中的类">RelSubset</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#root">root</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="java.util中的类或接口">Set</a><<a href="../../../../../org/apache/calcite/plan/RelOptRule.html" title="org.apache.calcite.plan中的类">RelOptRule</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#ruleSet">ruleSet</a></span></code> |
| <div class="block">Set of all registered rules.</div> |
| </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a name="fields.inherited.from.class.org.apache.calcite.plan.AbstractRelOptPlanner"> |
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| </a> |
| <h3>从类继承的字段 org.apache.calcite.plan.<a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html" title="org.apache.calcite.plan中的类">AbstractRelOptPlanner</a></h3> |
| <code><a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#context">context</a>, <a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#costFactory">costFactory</a></code></li> |
| </ul> |
| <ul class="blockList"> |
| <li class="blockList"><a name="fields.inherited.from.class.org.apache.calcite.plan.RelOptPlanner"> |
| <!-- --> |
| </a> |
| <h3>从接口继承的字段 org.apache.calcite.plan.<a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html" title="org.apache.calcite.plan中的接口">RelOptPlanner</a></h3> |
| <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#LOGGER">LOGGER</a></code></li> |
| </ul> |
| </li> |
| </ul> |
| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="constructor.summary"> |
| <!-- --> |
| </a> |
| <h3>构造器概要</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="构造器概要表, 列表构造器和解释"> |
| <caption><span>构造器</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colOne" scope="col">构造器和说明</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#VolcanoPlanner--">VolcanoPlanner</a></span>()</code> |
| <div class="block">Creates a uninitialized <code>VolcanoPlanner</code>.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#VolcanoPlanner-org.apache.calcite.plan.Context-">VolcanoPlanner</a></span>(<a href="../../../../../org/apache/calcite/plan/Context.html" title="org.apache.calcite.plan中的接口">Context</a> externalContext)</code> |
| <div class="block">Creates a uninitialized <code>VolcanoPlanner</code>.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#VolcanoPlanner-org.apache.calcite.plan.RelOptCostFactory-org.apache.calcite.plan.Context-">VolcanoPlanner</a></span>(<a href="../../../../../org/apache/calcite/plan/RelOptCostFactory.html" title="org.apache.calcite.plan中的接口">RelOptCostFactory</a> costFactory, |
| <a href="../../../../../org/apache/calcite/plan/Context.html" title="org.apache.calcite.plan中的接口">Context</a> externalContext)</code> |
| <div class="block">Creates a <code>VolcanoPlanner</code> with a given cost factory.</div> |
| </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| <!-- ========== METHOD SUMMARY =========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="method.summary"> |
| <!-- --> |
| </a> |
| <h3>方法概要</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="方法概要表, 列表方法和解释"> |
| <caption><span id="t0" class="activeTableTab"><span>所有方法</span><span class="tabEnd"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">静态方法</a></span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">实例方法</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">具体方法</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">限定符和类型</th> |
| <th class="colLast" scope="col">方法和说明</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#addLattice-org.apache.calcite.plan.RelOptLattice-">addLattice</a></span>(<a href="../../../../../org/apache/calcite/plan/RelOptLattice.html" title="org.apache.calcite.plan中的类">RelOptLattice</a> lattice)</code> |
| <div class="block">Defines a lattice.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#addListener-org.apache.calcite.plan.RelOptListener-">addListener</a></span>(<a href="../../../../../org/apache/calcite/plan/RelOptListener.html" title="org.apache.calcite.plan中的接口">RelOptListener</a> newListener)</code> |
| <div class="block">Adds a listener to this planner.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#addMaterialization-org.apache.calcite.plan.RelOptMaterialization-">addMaterialization</a></span>(<a href="../../../../../org/apache/calcite/plan/RelOptMaterialization.html" title="org.apache.calcite.plan中的类">RelOptMaterialization</a> materialization)</code> |
| <div class="block">Defines a pair of relational expressions that are equivalent.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#addRelTraitDef-org.apache.calcite.plan.RelTraitDef-">addRelTraitDef</a></span>(<a href="../../../../../org/apache/calcite/plan/RelTraitDef.html" title="org.apache.calcite.plan中的类">RelTraitDef</a> relTraitDef)</code> |
| <div class="block">Registers a rel trait definition.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#addRule-org.apache.calcite.plan.RelOptRule-">addRule</a></span>(<a href="../../../../../org/apache/calcite/plan/RelOptRule.html" title="org.apache.calcite.plan中的类">RelOptRule</a> rule)</code> |
| <div class="block">Registers a rule.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#changeTraits-org.apache.calcite.rel.RelNode-org.apache.calcite.plan.RelTraitSet-">changeTraits</a></span>(<a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> rel, |
| <a href="../../../../../org/apache/calcite/plan/RelTraitSet.html" title="org.apache.calcite.plan中的类">RelTraitSet</a> toTraits)</code> |
| <div class="block">Changes a relational expression to an equivalent one with a different set |
| of traits.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html" title="org.apache.calcite.plan中的接口">RelOptPlanner</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#chooseDelegate--">chooseDelegate</a></span>()</code> |
| <div class="block">Negotiates an appropriate planner to deal with distributed queries.</div> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#clear--">clear</a></span>()</code> |
| <div class="block">Removes all internal state, including all registered rules, |
| materialized views, and lattices.</div> |
| </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#clearRelTraitDefs--">clearRelTraitDefs</a></span>()</code> |
| <div class="block">Clear all the registered RelTraitDef.</div> |
| </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#dump-java.io.PrintWriter-">dump</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/PrintWriter.html?is-external=true" title="java.io中的类或接口">PrintWriter</a> pw)</code> |
| <div class="block">Dumps the internal state of this VolcanoPlanner to a writer.</div> |
| </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/plan/RelTraitSet.html" title="org.apache.calcite.plan中的类">RelTraitSet</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#emptyTraitSet--">emptyTraitSet</a></span>()</code> |
| <div class="block">Creates an empty trait set.</div> |
| </td> |
| </tr> |
| <tr id="i11" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/plan/volcano/RelSubset.html" title="org.apache.calcite.plan.volcano中的类">RelSubset</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#ensureRegistered-org.apache.calcite.rel.RelNode-org.apache.calcite.rel.RelNode-">ensureRegistered</a></span>(<a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> rel, |
| <a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> equivRel)</code> |
| <div class="block">Registers a relational expression if it is not already registered.</div> |
| </td> |
| </tr> |
| <tr id="i12" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#findBestExp--">findBestExp</a></span>()</code> |
| <div class="block">Finds the most efficient expression to implement the query given via |
| <a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#setRoot-org.apache.calcite.rel.RelNode-"><code>RelOptPlanner.setRoot(org.apache.calcite.rel.RelNode)</code></a>.</div> |
| </td> |
| </tr> |
| <tr id="i13" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/plan/RelOptCost.html" title="org.apache.calcite.plan中的接口">RelOptCost</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#getCost-org.apache.calcite.rel.RelNode-org.apache.calcite.rel.metadata.RelMetadataQuery-">getCost</a></span>(<a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> rel, |
| <a href="../../../../../org/apache/calcite/rel/metadata/RelMetadataQuery.html" title="org.apache.calcite.rel.metadata中的类">RelMetadataQuery</a> mq)</code> |
| <div class="block">Computes the cost of a RelNode.</div> |
| </td> |
| </tr> |
| <tr id="i14" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/plan/RelOptLattice.html" title="org.apache.calcite.plan中的类">RelOptLattice</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#getLattice-org.apache.calcite.plan.RelOptTable-">getLattice</a></span>(<a href="../../../../../org/apache/calcite/plan/RelOptTable.html" title="org.apache.calcite.plan中的接口">RelOptTable</a> table)</code> |
| <div class="block">Retrieves a lattice, given its star table.</div> |
| </td> |
| </tr> |
| <tr id="i15" class="rowColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><<a href="../../../../../org/apache/calcite/plan/RelOptMaterialization.html" title="org.apache.calcite.plan中的类">RelOptMaterialization</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#getMaterializations--">getMaterializations</a></span>()</code> |
| <div class="block">Returns the materializations that have been registered with the planner.</div> |
| </td> |
| </tr> |
| <tr id="i16" class="altColor"> |
| <td class="colFirst"><code>protected <a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlannerPhaseRuleMappingInitializer.html" title="org.apache.calcite.plan.volcano中的接口">VolcanoPlannerPhaseRuleMappingInitializer</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#getPhaseRuleMappingInitializer--">getPhaseRuleMappingInitializer</a></span>()</code> </td> |
| </tr> |
| <tr id="i17" class="rowColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#getRelMetadataTimestamp-org.apache.calcite.rel.RelNode-">getRelMetadataTimestamp</a></span>(<a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> rel)</code> |
| <div class="block">Gets a timestamp for a given rel's metadata.</div> |
| </td> |
| </tr> |
| <tr id="i18" class="altColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><<a href="../../../../../org/apache/calcite/plan/RelTraitDef.html" title="org.apache.calcite.plan中的类">RelTraitDef</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#getRelTraitDefs--">getRelTraitDefs</a></span>()</code> |
| <div class="block">Returns the list of active trait types.</div> |
| </td> |
| </tr> |
| <tr id="i19" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#getRoot--">getRoot</a></span>()</code> |
| <div class="block">Returns the root node of this query.</div> |
| </td> |
| </tr> |
| <tr id="i20" class="altColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><<a href="../../../../../org/apache/calcite/plan/RelOptRule.html" title="org.apache.calcite.plan中的类">RelOptRule</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#getRules--">getRules</a></span>()</code> |
| <div class="block">Returns the list of all registered rules.</div> |
| </td> |
| </tr> |
| <tr id="i21" class="rowColor"> |
| <td class="colFirst"><code>org.apache.calcite.plan.volcano.RelSet</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#getSet-org.apache.calcite.rel.RelNode-">getSet</a></span>(<a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> rel)</code> |
| <div class="block">Finds an expression's equivalence set.</div> |
| </td> |
| </tr> |
| <tr id="i22" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/plan/volcano/RelSubset.html" title="org.apache.calcite.plan.volcano中的类">RelSubset</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#getSubset-org.apache.calcite.rel.RelNode-">getSubset</a></span>(<a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> rel)</code> |
| <div class="block">Returns the subset that a relational expression belongs to.</div> |
| </td> |
| </tr> |
| <tr id="i23" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/plan/volcano/RelSubset.html" title="org.apache.calcite.plan.volcano中的类">RelSubset</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#getSubset-org.apache.calcite.rel.RelNode-org.apache.calcite.plan.RelTraitSet-">getSubset</a></span>(<a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> rel, |
| <a href="../../../../../org/apache/calcite/plan/RelTraitSet.html" title="org.apache.calcite.plan中的类">RelTraitSet</a> traits)</code> </td> |
| </tr> |
| <tr id="i24" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/plan/volcano/RelSubset.html" title="org.apache.calcite.plan.volcano中的类">RelSubset</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#getSubset-org.apache.calcite.rel.RelNode-org.apache.calcite.plan.RelTraitSet-boolean-">getSubset</a></span>(<a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> rel, |
| <a href="../../../../../org/apache/calcite/plan/RelTraitSet.html" title="org.apache.calcite.plan中的类">RelTraitSet</a> traits, |
| boolean createIfMissing)</code> </td> |
| </tr> |
| <tr id="i25" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#isRegistered-org.apache.calcite.rel.RelNode-">isRegistered</a></span>(<a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> rel)</code> |
| <div class="block">Determines whether a relational expression has been registered.</div> |
| </td> |
| </tr> |
| <tr id="i26" class="altColor"> |
| <td class="colFirst"><code>protected boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#isValid-org.apache.calcite.util.Litmus-">isValid</a></span>(<a href="../../../../../org/apache/calcite/util/Litmus.html" title="org.apache.calcite.util中的接口">Litmus</a> litmus)</code> |
| <div class="block">Checks internal consistency.</div> |
| </td> |
| </tr> |
| <tr id="i27" class="rowColor"> |
| <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#normalizePlan-java.lang.String-">normalizePlan</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> plan)</code> |
| <div class="block">Normalizes references to subsets within the string representation of a |
| plan.</div> |
| </td> |
| </tr> |
| <tr id="i28" class="altColor"> |
| <td class="colFirst"><code>protected void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#onNewClass-org.apache.calcite.rel.RelNode-">onNewClass</a></span>(<a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> node)</code> |
| <div class="block">Called when a new class of <a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口"><code>RelNode</code></a> is seen.</div> |
| </td> |
| </tr> |
| <tr id="i29" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/plan/volcano/RelSubset.html" title="org.apache.calcite.plan.volcano中的类">RelSubset</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#register-org.apache.calcite.rel.RelNode-org.apache.calcite.rel.RelNode-">register</a></span>(<a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> rel, |
| <a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> equivRel)</code> |
| <div class="block">Registers a relational expression in the expression bank.</div> |
| </td> |
| </tr> |
| <tr id="i30" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#registerAbstractRelationalRules--">registerAbstractRelationalRules</a></span>()</code> </td> |
| </tr> |
| <tr id="i31" class="rowColor"> |
| <td class="colFirst"><code>protected void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#registerMaterializations--">registerMaterializations</a></span>()</code> </td> |
| </tr> |
| <tr id="i32" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#registerMetadataProviders-java.util.List-">registerMetadataProviders</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><<a href="../../../../../org/apache/calcite/rel/metadata/RelMetadataProvider.html" title="org.apache.calcite.rel.metadata中的接口">RelMetadataProvider</a>> list)</code> |
| <div class="block">Gives this planner a chance to register one or more |
| <a href="../../../../../org/apache/calcite/rel/metadata/RelMetadataProvider.html" title="org.apache.calcite.rel.metadata中的接口"><code>RelMetadataProvider</code></a>s in the chain which will be used to answer |
| metadata queries.</div> |
| </td> |
| </tr> |
| <tr id="i33" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#registerSchema-org.apache.calcite.plan.RelOptSchema-">registerSchema</a></span>(<a href="../../../../../org/apache/calcite/plan/RelOptSchema.html" title="org.apache.calcite.plan中的接口">RelOptSchema</a> schema)</code> |
| <div class="block">Tells this planner that a schema exists.</div> |
| </td> |
| </tr> |
| <tr id="i34" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#removeRule-org.apache.calcite.plan.RelOptRule-">removeRule</a></span>(<a href="../../../../../org/apache/calcite/plan/RelOptRule.html" title="org.apache.calcite.plan中的类">RelOptRule</a> rule)</code> |
| <div class="block">Removes a rule.</div> |
| </td> |
| </tr> |
| <tr id="i35" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#setImportance-org.apache.calcite.rel.RelNode-double-">setImportance</a></span>(<a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> rel, |
| double importance)</code> |
| <div class="block">Sets the importance of a relational expression.</div> |
| </td> |
| </tr> |
| <tr id="i36" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#setLocked-boolean-">setLocked</a></span>(boolean locked)</code> |
| <div class="block">Sets whether this planner is locked.</div> |
| </td> |
| </tr> |
| <tr id="i37" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#setNoneConventionHasInfiniteCost-boolean-">setNoneConventionHasInfiniteCost</a></span>(boolean infinite)</code> |
| <div class="block">Sets whether this planner should consider rel nodes with Convention.NONE |
| to have infinite cost or not.</div> |
| </td> |
| </tr> |
| <tr id="i38" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#setRoot-org.apache.calcite.rel.RelNode-">setRoot</a></span>(<a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> rel)</code> |
| <div class="block">Sets the root node of this query.</div> |
| </td> |
| </tr> |
| <tr id="i39" class="rowColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#toDot--">toDot</a></span>()</code> </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a name="methods.inherited.from.class.org.apache.calcite.plan.AbstractRelOptPlanner"> |
| <!-- --> |
| </a> |
| <h3>从类继承的方法 org.apache.calcite.plan.<a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html" title="org.apache.calcite.plan中的类">AbstractRelOptPlanner</a></h3> |
| <code><a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#checkCancel--">checkCancel</a>, <a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#fireRule-org.apache.calcite.plan.RelOptRuleCall-">fireRule</a>, <a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#getContext--">getContext</a>, <a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#getCost-org.apache.calcite.rel.RelNode-">getCost</a>, <a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#getCostFactory--">getCostFactory</a>, <a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#getExecutor--">getExecutor</a>, <a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#getListener--">getListener</a>, <a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#getRuleByDescription-java.lang.String-">getRuleByDescription</a>, <a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#isRuleExcluded-org.apache.calcite.plan.RelOptRule-">isRuleExcluded</a>, <a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#key-org.apache.calcite.rel.RelNode-">key</a>, <a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#key-java.lang.String-org.apache.calcite.rel.type.RelDataType-">key</a>, <a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#mapRuleDescription-org.apache.calcite.plan.RelOptRule-">mapRuleDescription</a>, <a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#notifyChosen-org.apache.calcite.rel.RelNode-">notifyChosen</a>, <a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#notifyDiscard-org.apache.calcite.rel.RelNode-">notifyDiscard</a>, <a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#notifyEquivalence-org.apache.calcite.rel.RelNode-java.lang.Object-boolean-">notifyEquivalence</a>, <a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#notifyTransformation-org.apache.calcite.plan.RelOptRuleCall-org.apache.calcite.rel.RelNode-boolean-">notifyTransformation</a>, <a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#onCopy-org.apache.calcite.rel.RelNode-org.apache.calcite.rel.RelNode-">onCopy</a>, <a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#registerClass-org.apache.calcite.rel.RelNode-">registerClass</a>, <a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#setCancelFlag-org.apache.calcite.util.CancelFlag-">setCancelFlag</a>, <a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#setExecutor-org.apache.calcite.rex.RexExecutor-">setExecutor</a>, <a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#setRuleDescExclusionFilter-java.util.regex.Pattern-">setRuleDescExclusionFilter</a>, <a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#subClasses-java.lang.Class-">subClasses</a>, <a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#unmapRuleDescription-org.apache.calcite.plan.RelOptRule-">unmapRuleDescription</a></code></li> |
| </ul> |
| <ul class="blockList"> |
| <li class="blockList"><a name="methods.inherited.from.class.java.lang.Object"> |
| <!-- --> |
| </a> |
| <h3>从类继承的方法 java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="java.lang中的类或接口">Object</a></h3> |
| <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="java.lang中的类或接口">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="java.lang中的类或接口">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="java.lang中的类或接口">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="java.lang中的类或接口">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="java.lang中的类或接口">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="java.lang中的类或接口">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="java.lang中的类或接口">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="java.lang中的类或接口">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="java.lang中的类或接口">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="java.lang中的类或接口">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="java.lang中的类或接口">wait</a></code></li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- ============ FIELD DETAIL =========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="field.detail"> |
| <!-- --> |
| </a> |
| <h3>字段详细资料</h3> |
| <a name="COST_IMPROVEMENT"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>COST_IMPROVEMENT</h4> |
| <pre>protected static final double COST_IMPROVEMENT</pre> |
| <dl> |
| <dt><span class="seeLabel">另请参阅:</span></dt> |
| <dd><a href="../../../../../constant-values.html#org.apache.calcite.plan.volcano.VolcanoPlanner.COST_IMPROVEMENT">常量字段值</a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="root"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>root</h4> |
| <pre>protected <a href="../../../../../org/apache/calcite/plan/volcano/RelSubset.html" title="org.apache.calcite.plan.volcano中的类">RelSubset</a> root</pre> |
| </li> |
| </ul> |
| <a name="ambitious"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>ambitious</h4> |
| <pre>protected boolean ambitious</pre> |
| <div class="block">If true, the planner keeps applying rules as long as they continue to |
| reduce the cost. If false, the planner terminates as soon as it has found |
| any implementation, no matter how expensive.</div> |
| </li> |
| </ul> |
| <a name="impatient"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>impatient</h4> |
| <pre>protected boolean impatient</pre> |
| <div class="block">If true, and if <a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#ambitious"><code>ambitious</code></a> is true, the planner waits a finite |
| number of iterations for the cost to improve. |
| |
| <p>The number of iterations K is equal to the number of iterations |
| required to get the first finite plan. After the first finite plan, it |
| continues to fire rules to try to improve it. The planner sets a target |
| cost of the current best cost multiplied by <a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#COST_IMPROVEMENT"><code>COST_IMPROVEMENT</code></a>. If |
| it does not meet that cost target within K steps, it quits, and uses the |
| current best plan. If it meets the cost, it sets a new, lower target, and |
| has another K iterations to meet it. And so forth. |
| |
| <p>If false, the planner continues to fire rules until the rule queue is |
| empty.</div> |
| </li> |
| </ul> |
| <a name="ruleSet"> |
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| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>ruleSet</h4> |
| <pre>protected final <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="java.util中的类或接口">Set</a><<a href="../../../../../org/apache/calcite/plan/RelOptRule.html" title="org.apache.calcite.plan中的类">RelOptRule</a>> ruleSet</pre> |
| <div class="block">Set of all registered rules.</div> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="constructor.detail"> |
| <!-- --> |
| </a> |
| <h3>构造器详细资料</h3> |
| <a name="VolcanoPlanner--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>VolcanoPlanner</h4> |
| <pre>public VolcanoPlanner()</pre> |
| <div class="block">Creates a uninitialized <code>VolcanoPlanner</code>. To fully initialize |
| it, the caller must register the desired set of relations, rules, and |
| calling conventions.</div> |
| </li> |
| </ul> |
| <a name="VolcanoPlanner-org.apache.calcite.plan.Context-"> |
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| </a> |
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| <pre>public VolcanoPlanner(<a href="../../../../../org/apache/calcite/plan/Context.html" title="org.apache.calcite.plan中的接口">Context</a> externalContext)</pre> |
| <div class="block">Creates a uninitialized <code>VolcanoPlanner</code>. To fully initialize |
| it, the caller must register the desired set of relations, rules, and |
| calling conventions.</div> |
| </li> |
| </ul> |
| <a name="VolcanoPlanner-org.apache.calcite.plan.RelOptCostFactory-org.apache.calcite.plan.Context-"> |
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| <h4>VolcanoPlanner</h4> |
| <pre>public VolcanoPlanner(<a href="../../../../../org/apache/calcite/plan/RelOptCostFactory.html" title="org.apache.calcite.plan中的接口">RelOptCostFactory</a> costFactory, |
| <a href="../../../../../org/apache/calcite/plan/Context.html" title="org.apache.calcite.plan中的接口">Context</a> externalContext)</pre> |
| <div class="block">Creates a <code>VolcanoPlanner</code> with a given cost factory.</div> |
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| <h3>方法详细资料</h3> |
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| <h4>getPhaseRuleMappingInitializer</h4> |
| <pre>protected <a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlannerPhaseRuleMappingInitializer.html" title="org.apache.calcite.plan.volcano中的接口">VolcanoPlannerPhaseRuleMappingInitializer</a> getPhaseRuleMappingInitializer()</pre> |
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| <h4>isRegistered</h4> |
| <pre>public boolean isRegistered(<a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> rel)</pre> |
| <div class="block"><span class="descfrmTypeLabel">从接口复制的说明: <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#isRegistered-org.apache.calcite.rel.RelNode-">RelOptPlanner</a></code></span></div> |
| <div class="block">Determines whether a relational expression has been registered.</div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>rel</code> - expression to test</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>whether rel has been registered</dd> |
| </dl> |
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| <a name="setRoot-org.apache.calcite.rel.RelNode-"> |
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| <h4>setRoot</h4> |
| <pre>public void setRoot(<a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> rel)</pre> |
| <div class="block"><span class="descfrmTypeLabel">从接口复制的说明: <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#setRoot-org.apache.calcite.rel.RelNode-">RelOptPlanner</a></code></span></div> |
| <div class="block">Sets the root node of this query.</div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>rel</code> - Relational expression</dd> |
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| <pre>public <a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> getRoot()</pre> |
| <div class="block"><span class="descfrmTypeLabel">从接口复制的说明: <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#getRoot--">RelOptPlanner</a></code></span></div> |
| <div class="block">Returns the root node of this query.</div> |
| <dl> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>Root node</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getMaterializations--"> |
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| <h4>getMaterializations</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><<a href="../../../../../org/apache/calcite/plan/RelOptMaterialization.html" title="org.apache.calcite.plan中的类">RelOptMaterialization</a>> getMaterializations()</pre> |
| <div class="block"><span class="descfrmTypeLabel">从接口复制的说明: <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#getMaterializations--">RelOptPlanner</a></code></span></div> |
| <div class="block">Returns the materializations that have been registered with the planner.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">指定者:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#getMaterializations--">getMaterializations</a></code> 在接口中 <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html" title="org.apache.calcite.plan中的接口">RelOptPlanner</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">覆盖:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#getMaterializations--">getMaterializations</a></code> 在类中 <code><a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html" title="org.apache.calcite.plan中的类">AbstractRelOptPlanner</a></code></dd> |
| </dl> |
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| <h4>addMaterialization</h4> |
| <pre>public void addMaterialization(<a href="../../../../../org/apache/calcite/plan/RelOptMaterialization.html" title="org.apache.calcite.plan中的类">RelOptMaterialization</a> materialization)</pre> |
| <div class="block"><span class="descfrmTypeLabel">从接口复制的说明: <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#addMaterialization-org.apache.calcite.plan.RelOptMaterialization-">RelOptPlanner</a></code></span></div> |
| <div class="block">Defines a pair of relational expressions that are equivalent. |
| |
| <p>Typically <code>tableRel</code> is a |
| <a href="../../../../../org/apache/calcite/rel/logical/LogicalTableScan.html" title="org.apache.calcite.rel.logical中的类"><code>LogicalTableScan</code></a> representing a |
| table that is a materialized view and <code>queryRel</code> is the SQL |
| expression that populates that view. The intention is that |
| <code>tableRel</code> is cheaper to evaluate and therefore if the query being |
| optimized uses (or can be rewritten to use) <code>queryRel</code> as a |
| sub-expression then it can be optimized by using <code>tableRel</code> |
| instead.</p></div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">指定者:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#addMaterialization-org.apache.calcite.plan.RelOptMaterialization-">addMaterialization</a></code> 在接口中 <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html" title="org.apache.calcite.plan中的接口">RelOptPlanner</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">覆盖:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#addMaterialization-org.apache.calcite.plan.RelOptMaterialization-">addMaterialization</a></code> 在类中 <code><a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html" title="org.apache.calcite.plan中的类">AbstractRelOptPlanner</a></code></dd> |
| </dl> |
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| <h4>addLattice</h4> |
| <pre>public void addLattice(<a href="../../../../../org/apache/calcite/plan/RelOptLattice.html" title="org.apache.calcite.plan中的类">RelOptLattice</a> lattice)</pre> |
| <div class="block"><span class="descfrmTypeLabel">从接口复制的说明: <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#addLattice-org.apache.calcite.plan.RelOptLattice-">RelOptPlanner</a></code></span></div> |
| <div class="block">Defines a lattice. |
| |
| <p>The lattice may have materializations; it is not necessary to call |
| <a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#addMaterialization-org.apache.calcite.plan.RelOptMaterialization-"><code>RelOptPlanner.addMaterialization(org.apache.calcite.plan.RelOptMaterialization)</code></a> for these; they are registered implicitly.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">指定者:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#addLattice-org.apache.calcite.plan.RelOptLattice-">addLattice</a></code> 在接口中 <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html" title="org.apache.calcite.plan中的接口">RelOptPlanner</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">覆盖:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#addLattice-org.apache.calcite.plan.RelOptLattice-">addLattice</a></code> 在类中 <code><a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html" title="org.apache.calcite.plan中的类">AbstractRelOptPlanner</a></code></dd> |
| </dl> |
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| <h4>getLattice</h4> |
| <pre>public <a href="../../../../../org/apache/calcite/plan/RelOptLattice.html" title="org.apache.calcite.plan中的类">RelOptLattice</a> getLattice(<a href="../../../../../org/apache/calcite/plan/RelOptTable.html" title="org.apache.calcite.plan中的接口">RelOptTable</a> table)</pre> |
| <div class="block"><span class="descfrmTypeLabel">从接口复制的说明: <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#getLattice-org.apache.calcite.plan.RelOptTable-">RelOptPlanner</a></code></span></div> |
| <div class="block">Retrieves a lattice, given its star table.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">指定者:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#getLattice-org.apache.calcite.plan.RelOptTable-">getLattice</a></code> 在接口中 <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html" title="org.apache.calcite.plan中的接口">RelOptPlanner</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">覆盖:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#getLattice-org.apache.calcite.plan.RelOptTable-">getLattice</a></code> 在类中 <code><a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html" title="org.apache.calcite.plan中的类">AbstractRelOptPlanner</a></code></dd> |
| </dl> |
| </li> |
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| <pre>protected void registerMaterializations()</pre> |
| </li> |
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| <a name="getSet-org.apache.calcite.rel.RelNode-"> |
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| <h4>getSet</h4> |
| <pre>public org.apache.calcite.plan.volcano.RelSet getSet(<a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> rel)</pre> |
| <div class="block">Finds an expression's equivalence set. If the expression is not |
| registered, returns null.</div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>rel</code> - Relational expression</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>Equivalence set that expression belongs to, or null if it is not |
| registered</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="addRelTraitDef-org.apache.calcite.plan.RelTraitDef-"> |
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| <h4>addRelTraitDef</h4> |
| <pre>public boolean addRelTraitDef(<a href="../../../../../org/apache/calcite/plan/RelTraitDef.html" title="org.apache.calcite.plan中的类">RelTraitDef</a> relTraitDef)</pre> |
| <div class="block"><span class="descfrmTypeLabel">从接口复制的说明: <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#addRelTraitDef-org.apache.calcite.plan.RelTraitDef-">RelOptPlanner</a></code></span></div> |
| <div class="block">Registers a rel trait definition. If the <a href="../../../../../org/apache/calcite/plan/RelTraitDef.html" title="org.apache.calcite.plan中的类"><code>RelTraitDef</code></a> has already |
| been registered, does nothing.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">指定者:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#addRelTraitDef-org.apache.calcite.plan.RelTraitDef-">addRelTraitDef</a></code> 在接口中 <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html" title="org.apache.calcite.plan中的接口">RelOptPlanner</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">覆盖:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#addRelTraitDef-org.apache.calcite.plan.RelTraitDef-">addRelTraitDef</a></code> 在类中 <code><a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html" title="org.apache.calcite.plan中的类">AbstractRelOptPlanner</a></code></dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>whether the RelTraitDef was added, as per |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true#add-E-" title="java.util中的类或接口"><code>Collection.add(E)</code></a></dd> |
| </dl> |
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| <pre>public void clearRelTraitDefs()</pre> |
| <div class="block"><span class="descfrmTypeLabel">从接口复制的说明: <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#clearRelTraitDefs--">RelOptPlanner</a></code></span></div> |
| <div class="block">Clear all the registered RelTraitDef.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">指定者:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#clearRelTraitDefs--">clearRelTraitDefs</a></code> 在接口中 <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html" title="org.apache.calcite.plan中的接口">RelOptPlanner</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">覆盖:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#clearRelTraitDefs--">clearRelTraitDefs</a></code> 在类中 <code><a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html" title="org.apache.calcite.plan中的类">AbstractRelOptPlanner</a></code></dd> |
| </dl> |
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| <h4>getRelTraitDefs</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><<a href="../../../../../org/apache/calcite/plan/RelTraitDef.html" title="org.apache.calcite.plan中的类">RelTraitDef</a>> getRelTraitDefs()</pre> |
| <div class="block"><span class="descfrmTypeLabel">从接口复制的说明: <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#getRelTraitDefs--">RelOptPlanner</a></code></span></div> |
| <div class="block">Returns the list of active trait types.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">指定者:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#getRelTraitDefs--">getRelTraitDefs</a></code> 在接口中 <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html" title="org.apache.calcite.plan中的接口">RelOptPlanner</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">覆盖:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#getRelTraitDefs--">getRelTraitDefs</a></code> 在类中 <code><a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html" title="org.apache.calcite.plan中的类">AbstractRelOptPlanner</a></code></dd> |
| </dl> |
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| </ul> |
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| <h4>emptyTraitSet</h4> |
| <pre>public <a href="../../../../../org/apache/calcite/plan/RelTraitSet.html" title="org.apache.calcite.plan中的类">RelTraitSet</a> emptyTraitSet()</pre> |
| <div class="block"><span class="descfrmTypeLabel">从接口复制的说明: <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#emptyTraitSet--">RelOptPlanner</a></code></span></div> |
| <div class="block">Creates an empty trait set. It contains all registered traits, and the |
| default values of any traits that have them. |
| |
| <p>The empty trait set acts as the prototype (a kind of factory) for all |
| subsequently created trait sets.</p></div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">指定者:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#emptyTraitSet--">emptyTraitSet</a></code> 在接口中 <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html" title="org.apache.calcite.plan中的接口">RelOptPlanner</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">覆盖:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#emptyTraitSet--">emptyTraitSet</a></code> 在类中 <code><a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html" title="org.apache.calcite.plan中的类">AbstractRelOptPlanner</a></code></dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>Empty trait set</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="clear--"> |
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| <h4>clear</h4> |
| <pre>public void clear()</pre> |
| <div class="block"><span class="descfrmTypeLabel">从接口复制的说明: <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#clear--">RelOptPlanner</a></code></span></div> |
| <div class="block">Removes all internal state, including all registered rules, |
| materialized views, and lattices.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">指定者:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#clear--">clear</a></code> 在接口中 <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html" title="org.apache.calcite.plan中的接口">RelOptPlanner</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">覆盖:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#clear--">clear</a></code> 在类中 <code><a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html" title="org.apache.calcite.plan中的类">AbstractRelOptPlanner</a></code></dd> |
| </dl> |
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| <h4>getRules</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><<a href="../../../../../org/apache/calcite/plan/RelOptRule.html" title="org.apache.calcite.plan中的类">RelOptRule</a>> getRules()</pre> |
| <div class="block"><span class="descfrmTypeLabel">从接口复制的说明: <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#getRules--">RelOptPlanner</a></code></span></div> |
| <div class="block">Returns the list of all registered rules.</div> |
| </li> |
| </ul> |
| <a name="addRule-org.apache.calcite.plan.RelOptRule-"> |
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| <h4>addRule</h4> |
| <pre>public boolean addRule(<a href="../../../../../org/apache/calcite/plan/RelOptRule.html" title="org.apache.calcite.plan中的类">RelOptRule</a> rule)</pre> |
| <div class="block"><span class="descfrmTypeLabel">从接口复制的说明: <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#addRule-org.apache.calcite.plan.RelOptRule-">RelOptPlanner</a></code></span></div> |
| <div class="block">Registers a rule. |
| |
| <p>If the rule has already been registered, does nothing. |
| This method determines if the given rule is a |
| <a href="../../../../../org/apache/calcite/rel/convert/ConverterRule.html" title="org.apache.calcite.rel.convert中的类"><code>ConverterRule</code></a> and pass the |
| ConverterRule to all |
| <a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#addRelTraitDef-org.apache.calcite.plan.RelTraitDef-"><code>registered</code></a> RelTraitDef |
| instances.</div> |
| <dl> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>whether the rule was added, as per |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true#add-E-" title="java.util中的类或接口"><code>Collection.add(E)</code></a></dd> |
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| <pre>public boolean removeRule(<a href="../../../../../org/apache/calcite/plan/RelOptRule.html" title="org.apache.calcite.plan中的类">RelOptRule</a> rule)</pre> |
| <div class="block"><span class="descfrmTypeLabel">从接口复制的说明: <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#removeRule-org.apache.calcite.plan.RelOptRule-">RelOptPlanner</a></code></span></div> |
| <div class="block">Removes a rule.</div> |
| <dl> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>true if the rule was present, as per |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true#remove-java.lang.Object-" title="java.util中的类或接口"><code>Collection.remove(Object)</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="onNewClass-org.apache.calcite.rel.RelNode-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>onNewClass</h4> |
| <pre>protected void onNewClass(<a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> node)</pre> |
| <div class="block"><span class="descfrmTypeLabel">从类复制的说明: <code><a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#onNewClass-org.apache.calcite.rel.RelNode-">AbstractRelOptPlanner</a></code></span></div> |
| <div class="block">Called when a new class of <a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口"><code>RelNode</code></a> is seen.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">覆盖:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#onNewClass-org.apache.calcite.rel.RelNode-">onNewClass</a></code> 在类中 <code><a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html" title="org.apache.calcite.plan中的类">AbstractRelOptPlanner</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="changeTraits-org.apache.calcite.rel.RelNode-org.apache.calcite.plan.RelTraitSet-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>changeTraits</h4> |
| <pre>public <a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> changeTraits(<a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> rel, |
| <a href="../../../../../org/apache/calcite/plan/RelTraitSet.html" title="org.apache.calcite.plan中的类">RelTraitSet</a> toTraits)</pre> |
| <div class="block"><span class="descfrmTypeLabel">从接口复制的说明: <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#changeTraits-org.apache.calcite.rel.RelNode-org.apache.calcite.plan.RelTraitSet-">RelOptPlanner</a></code></span></div> |
| <div class="block">Changes a relational expression to an equivalent one with a different set |
| of traits.</div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>rel</code> - Relational expression (may or may not have been registered; must |
| not have the desired traits)</dd> |
| <dd><code>toTraits</code> - Trait set to convert the relational expression to</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>Relational expression with desired traits. Never null, but may be |
| abstract</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="chooseDelegate--"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>chooseDelegate</h4> |
| <pre>public <a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html" title="org.apache.calcite.plan中的接口">RelOptPlanner</a> chooseDelegate()</pre> |
| <div class="block"><span class="descfrmTypeLabel">从接口复制的说明: <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#chooseDelegate--">RelOptPlanner</a></code></span></div> |
| <div class="block">Negotiates an appropriate planner to deal with distributed queries. The |
| idea is that the schemas decide among themselves which has the most |
| knowledge. Right now, the local planner retains control.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">指定者:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#chooseDelegate--">chooseDelegate</a></code> 在接口中 <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html" title="org.apache.calcite.plan中的接口">RelOptPlanner</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">覆盖:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#chooseDelegate--">chooseDelegate</a></code> 在类中 <code><a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html" title="org.apache.calcite.plan中的类">AbstractRelOptPlanner</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="findBestExp--"> |
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| <ul class="blockList"> |
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| <h4>findBestExp</h4> |
| <pre>public <a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> findBestExp()</pre> |
| <div class="block">Finds the most efficient expression to implement the query given via |
| <a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#setRoot-org.apache.calcite.rel.RelNode-"><code>RelOptPlanner.setRoot(org.apache.calcite.rel.RelNode)</code></a>. |
| |
| <p>The algorithm executes repeatedly in a series of phases. In each phase |
| the exact rules that may be fired varies. The mapping of phases to rule |
| sets is maintained in the <a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#ruleQueue"><code>ruleQueue</code></a>. |
| |
| <p>In each phase, the planner sets the initial importance of the existing |
| RelSubSets (<a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#setInitialImportance--"><code>setInitialImportance()</code></a>). The planner then iterates |
| over the rule matches presented by the rule queue until: |
| |
| <ol> |
| <li>The rule queue becomes empty.</li> |
| <li>For ambitious planners: No improvements to the plan have been made |
| recently (specifically within a number of iterations that is 10% of the |
| number of iterations necessary to first reach an implementable plan or 25 |
| iterations whichever is larger).</li> |
| <li>For non-ambitious planners: When an implementable plan is found.</li> |
| </ol> |
| |
| <p>Furthermore, after every 10 iterations without an implementable plan, |
| RelSubSets that contain only logical RelNodes are given an importance |
| boost via <a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#injectImportanceBoost--"><code>injectImportanceBoost()</code></a>. Once an implementable plan is |
| found, the artificially raised importance values are cleared (see |
| <a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#clearImportanceBoost--"><code>clearImportanceBoost()</code></a>).</div> |
| <dl> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>the most efficient RelNode tree found for implementing the given |
| query</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="register-org.apache.calcite.rel.RelNode-org.apache.calcite.rel.RelNode-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>register</h4> |
| <pre>public <a href="../../../../../org/apache/calcite/plan/volcano/RelSubset.html" title="org.apache.calcite.plan.volcano中的类">RelSubset</a> register(<a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> rel, |
| <a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> equivRel)</pre> |
| <div class="block"><span class="descfrmTypeLabel">从接口复制的说明: <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#register-org.apache.calcite.rel.RelNode-org.apache.calcite.rel.RelNode-">RelOptPlanner</a></code></span></div> |
| <div class="block">Registers a relational expression in the expression bank. |
| |
| <p>After it has been registered, you may not modify it. |
| |
| <p>The expression must not already have been registered. If you are not |
| sure whether it has been registered, call |
| <a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#ensureRegistered-org.apache.calcite.rel.RelNode-org.apache.calcite.rel.RelNode-"><code>RelOptPlanner.ensureRegistered(RelNode, RelNode)</code></a>.</div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>rel</code> - Relational expression to register (must not already be |
| registered)</dd> |
| <dd><code>equivRel</code> - Relational expression it is equivalent to (may be null)</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>the same expression, or an equivalent existing expression</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="ensureRegistered-org.apache.calcite.rel.RelNode-org.apache.calcite.rel.RelNode-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>ensureRegistered</h4> |
| <pre>public <a href="../../../../../org/apache/calcite/plan/volcano/RelSubset.html" title="org.apache.calcite.plan.volcano中的类">RelSubset</a> ensureRegistered(<a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> rel, |
| <a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> equivRel)</pre> |
| <div class="block"><span class="descfrmTypeLabel">从接口复制的说明: <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#ensureRegistered-org.apache.calcite.rel.RelNode-org.apache.calcite.rel.RelNode-">RelOptPlanner</a></code></span></div> |
| <div class="block">Registers a relational expression if it is not already registered. |
| |
| <p>If <code>equivRel</code> is specified, <code>rel</code> is placed in the same |
| equivalence set. It is OK if <code>equivRel</code> has different traits; |
| <code>rel</code> will end up in a different subset of the same set. |
| |
| <p>It is OK if <code>rel</code> is a subset.</div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>rel</code> - Relational expression to register</dd> |
| <dd><code>equivRel</code> - Relational expression it is equivalent to (may be null)</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>Registered relational expression</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="isValid-org.apache.calcite.util.Litmus-"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>isValid</h4> |
| <pre>protected boolean isValid(<a href="../../../../../org/apache/calcite/util/Litmus.html" title="org.apache.calcite.util中的接口">Litmus</a> litmus)</pre> |
| <div class="block">Checks internal consistency.</div> |
| </li> |
| </ul> |
| <a name="registerAbstractRelationalRules--"> |
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| </a> |
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| <li class="blockList"> |
| <h4>registerAbstractRelationalRules</h4> |
| <pre>public void registerAbstractRelationalRules()</pre> |
| </li> |
| </ul> |
| <a name="registerSchema-org.apache.calcite.plan.RelOptSchema-"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>registerSchema</h4> |
| <pre>public void registerSchema(<a href="../../../../../org/apache/calcite/plan/RelOptSchema.html" title="org.apache.calcite.plan中的接口">RelOptSchema</a> schema)</pre> |
| <div class="block"><span class="descfrmTypeLabel">从接口复制的说明: <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#registerSchema-org.apache.calcite.plan.RelOptSchema-">RelOptPlanner</a></code></span></div> |
| <div class="block">Tells this planner that a schema exists. This is the schema's chance to |
| tell the planner about all of the special transformation rules.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">指定者:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#registerSchema-org.apache.calcite.plan.RelOptSchema-">registerSchema</a></code> 在接口中 <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html" title="org.apache.calcite.plan中的接口">RelOptPlanner</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">覆盖:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#registerSchema-org.apache.calcite.plan.RelOptSchema-">registerSchema</a></code> 在类中 <code><a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html" title="org.apache.calcite.plan中的类">AbstractRelOptPlanner</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="setNoneConventionHasInfiniteCost-boolean-"> |
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| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>setNoneConventionHasInfiniteCost</h4> |
| <pre>public void setNoneConventionHasInfiniteCost(boolean infinite)</pre> |
| <div class="block">Sets whether this planner should consider rel nodes with Convention.NONE |
| to have infinite cost or not.</div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>infinite</code> - Whether to make none convention rel nodes infinite cost</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getCost-org.apache.calcite.rel.RelNode-org.apache.calcite.rel.metadata.RelMetadataQuery-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
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| <h4>getCost</h4> |
| <pre>public <a href="../../../../../org/apache/calcite/plan/RelOptCost.html" title="org.apache.calcite.plan中的接口">RelOptCost</a> getCost(<a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> rel, |
| <a href="../../../../../org/apache/calcite/rel/metadata/RelMetadataQuery.html" title="org.apache.calcite.rel.metadata中的类">RelMetadataQuery</a> mq)</pre> |
| <div class="block"><span class="descfrmTypeLabel">从接口复制的说明: <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#getCost-org.apache.calcite.rel.RelNode-org.apache.calcite.rel.metadata.RelMetadataQuery-">RelOptPlanner</a></code></span></div> |
| <div class="block">Computes the cost of a RelNode. In most cases, this just dispatches to |
| <a href="../../../../../org/apache/calcite/rel/metadata/RelMetadataQuery.html#getCumulativeCost-org.apache.calcite.rel.RelNode-"><code>RelMetadataQuery.getCumulativeCost(org.apache.calcite.rel.RelNode)</code></a>.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">指定者:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#getCost-org.apache.calcite.rel.RelNode-org.apache.calcite.rel.metadata.RelMetadataQuery-">getCost</a></code> 在接口中 <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html" title="org.apache.calcite.plan中的接口">RelOptPlanner</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">覆盖:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#getCost-org.apache.calcite.rel.RelNode-org.apache.calcite.rel.metadata.RelMetadataQuery-">getCost</a></code> 在类中 <code><a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html" title="org.apache.calcite.plan中的类">AbstractRelOptPlanner</a></code></dd> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>rel</code> - Relational expression of interest</dd> |
| <dd><code>mq</code> - Metadata query</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>estimated cost</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getSubset-org.apache.calcite.rel.RelNode-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getSubset</h4> |
| <pre>public <a href="../../../../../org/apache/calcite/plan/volcano/RelSubset.html" title="org.apache.calcite.plan.volcano中的类">RelSubset</a> getSubset(<a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> rel)</pre> |
| <div class="block">Returns the subset that a relational expression belongs to.</div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>rel</code> - Relational expression</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>Subset it belongs to, or null if it is not registered</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getSubset-org.apache.calcite.rel.RelNode-org.apache.calcite.plan.RelTraitSet-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
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| <h4>getSubset</h4> |
| <pre>public <a href="../../../../../org/apache/calcite/plan/volcano/RelSubset.html" title="org.apache.calcite.plan.volcano中的类">RelSubset</a> getSubset(<a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> rel, |
| <a href="../../../../../org/apache/calcite/plan/RelTraitSet.html" title="org.apache.calcite.plan中的类">RelTraitSet</a> traits)</pre> |
| </li> |
| </ul> |
| <a name="getSubset-org.apache.calcite.rel.RelNode-org.apache.calcite.plan.RelTraitSet-boolean-"> |
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| <h4>getSubset</h4> |
| <pre>public <a href="../../../../../org/apache/calcite/plan/volcano/RelSubset.html" title="org.apache.calcite.plan.volcano中的类">RelSubset</a> getSubset(<a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> rel, |
| <a href="../../../../../org/apache/calcite/plan/RelTraitSet.html" title="org.apache.calcite.plan中的类">RelTraitSet</a> traits, |
| boolean createIfMissing)</pre> |
| </li> |
| </ul> |
| <a name="setImportance-org.apache.calcite.rel.RelNode-double-"> |
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| </a> |
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| <h4>setImportance</h4> |
| <pre>public void setImportance(<a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> rel, |
| double importance)</pre> |
| <div class="block"><span class="descfrmTypeLabel">从接口复制的说明: <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#setImportance-org.apache.calcite.rel.RelNode-double-">RelOptPlanner</a></code></span></div> |
| <div class="block">Sets the importance of a relational expression. |
| |
| <p>An important use of this method is when a <a href="../../../../../org/apache/calcite/plan/RelOptRule.html" title="org.apache.calcite.plan中的类"><code>RelOptRule</code></a> has |
| created a relational expression which is indisputably better than the |
| original relational expression. The rule set the original relational |
| expression's importance to zero, to reduce the search space. Pending rule |
| calls are cancelled, and future rules will not fire.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">指定者:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#setImportance-org.apache.calcite.rel.RelNode-double-">setImportance</a></code> 在接口中 <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html" title="org.apache.calcite.plan中的接口">RelOptPlanner</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">覆盖:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#setImportance-org.apache.calcite.rel.RelNode-double-">setImportance</a></code> 在类中 <code><a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html" title="org.apache.calcite.plan中的类">AbstractRelOptPlanner</a></code></dd> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>rel</code> - Relational expression</dd> |
| <dd><code>importance</code> - Importance</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="dump-java.io.PrintWriter-"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>dump</h4> |
| <pre>public void dump(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/PrintWriter.html?is-external=true" title="java.io中的类或接口">PrintWriter</a> pw)</pre> |
| <div class="block">Dumps the internal state of this VolcanoPlanner to a writer.</div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>pw</code> - Print writer</dd> |
| <dt><span class="seeLabel">另请参阅:</span></dt> |
| <dd><a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#normalizePlan-java.lang.String-"><code>normalizePlan(String)</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="toDot--"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>toDot</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> toDot()</pre> |
| </li> |
| </ul> |
| <a name="addListener-org.apache.calcite.plan.RelOptListener-"> |
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| <h4>addListener</h4> |
| <pre>public void addListener(<a href="../../../../../org/apache/calcite/plan/RelOptListener.html" title="org.apache.calcite.plan中的接口">RelOptListener</a> newListener)</pre> |
| <div class="block"><span class="descfrmTypeLabel">从接口复制的说明: <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#addListener-org.apache.calcite.plan.RelOptListener-">RelOptPlanner</a></code></span></div> |
| <div class="block">Adds a listener to this planner.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">指定者:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#addListener-org.apache.calcite.plan.RelOptListener-">addListener</a></code> 在接口中 <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html" title="org.apache.calcite.plan中的接口">RelOptPlanner</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">覆盖:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#addListener-org.apache.calcite.plan.RelOptListener-">addListener</a></code> 在类中 <code><a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html" title="org.apache.calcite.plan中的类">AbstractRelOptPlanner</a></code></dd> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>newListener</code> - new listener to be notified of events</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="registerMetadataProviders-java.util.List-"> |
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| <h4>registerMetadataProviders</h4> |
| <pre>public void registerMetadataProviders(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><<a href="../../../../../org/apache/calcite/rel/metadata/RelMetadataProvider.html" title="org.apache.calcite.rel.metadata中的接口">RelMetadataProvider</a>> list)</pre> |
| <div class="block"><span class="descfrmTypeLabel">从接口复制的说明: <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#registerMetadataProviders-java.util.List-">RelOptPlanner</a></code></span></div> |
| <div class="block">Gives this planner a chance to register one or more |
| <a href="../../../../../org/apache/calcite/rel/metadata/RelMetadataProvider.html" title="org.apache.calcite.rel.metadata中的接口"><code>RelMetadataProvider</code></a>s in the chain which will be used to answer |
| metadata queries. |
| |
| <p>Planners which use their own relational expressions internally |
| to represent concepts such as equivalence classes will generally need to |
| supply corresponding metadata providers.</p></div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">指定者:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#registerMetadataProviders-java.util.List-">registerMetadataProviders</a></code> 在接口中 <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html" title="org.apache.calcite.plan中的接口">RelOptPlanner</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">覆盖:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#registerMetadataProviders-java.util.List-">registerMetadataProviders</a></code> 在类中 <code><a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html" title="org.apache.calcite.plan中的类">AbstractRelOptPlanner</a></code></dd> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>list</code> - receives planner's custom providers, if any</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getRelMetadataTimestamp-org.apache.calcite.rel.RelNode-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getRelMetadataTimestamp</h4> |
| <pre>public long getRelMetadataTimestamp(<a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> rel)</pre> |
| <div class="block"><span class="descfrmTypeLabel">从接口复制的说明: <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#getRelMetadataTimestamp-org.apache.calcite.rel.RelNode-">RelOptPlanner</a></code></span></div> |
| <div class="block">Gets a timestamp for a given rel's metadata. This timestamp is used by |
| <a href="../../../../../org/apache/calcite/rel/metadata/CachingRelMetadataProvider.html" title="org.apache.calcite.rel.metadata中的类"><code>CachingRelMetadataProvider</code></a> to decide whether cached metadata has |
| gone stale.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">指定者:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html#getRelMetadataTimestamp-org.apache.calcite.rel.RelNode-">getRelMetadataTimestamp</a></code> 在接口中 <code><a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html" title="org.apache.calcite.plan中的接口">RelOptPlanner</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">覆盖:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html#getRelMetadataTimestamp-org.apache.calcite.rel.RelNode-">getRelMetadataTimestamp</a></code> 在类中 <code><a href="../../../../../org/apache/calcite/plan/AbstractRelOptPlanner.html" title="org.apache.calcite.plan中的类">AbstractRelOptPlanner</a></code></dd> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>rel</code> - rel of interest</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>timestamp of last change which might affect metadata derivation</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="normalizePlan-java.lang.String-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>normalizePlan</h4> |
| <pre>public static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> normalizePlan(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a> plan)</pre> |
| <div class="block">Normalizes references to subsets within the string representation of a |
| plan. |
| |
| <p>This is useful when writing tests: it helps to ensure that tests don't |
| break when an extra rule is introduced that generates a new subset and |
| causes subsequent subset numbers to be off by one. |
| |
| <p>For example, |
| |
| <blockquote> |
| FennelAggRel.FENNEL_EXEC(child=Subset#17.FENNEL_EXEC,groupCount=1, |
| EXPR$1=COUNT())<br> |
| FennelSortRel.FENNEL_EXEC(child=Subset#2.FENNEL_EXEC, |
| key=[0], discardDuplicates=false)<br> |
| FennelCalcRel.FENNEL_EXEC( |
| child=Subset#4.FENNEL_EXEC, expr#0..8={inputs}, expr#9=3456, |
| DEPTNO=$t7, $f0=$t9)<br> |
| MockTableImplRel.FENNEL_EXEC( |
| table=[CATALOG, SALES, EMP])</blockquote> |
| |
| <p>becomes |
| |
| <blockquote> |
| FennelAggRel.FENNEL_EXEC(child=Subset#{0}.FENNEL_EXEC, groupCount=1, |
| EXPR$1=COUNT())<br> |
| FennelSortRel.FENNEL_EXEC(child=Subset#{1}.FENNEL_EXEC, |
| key=[0], discardDuplicates=false)<br> |
| FennelCalcRel.FENNEL_EXEC( |
| child=Subset#{2}.FENNEL_EXEC,expr#0..8={inputs},expr#9=3456,DEPTNO=$t7, |
| $f0=$t9)<br> |
| MockTableImplRel.FENNEL_EXEC( |
| table=[CATALOG, SALES, EMP])</blockquote></div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>plan</code> - Plan</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>Normalized plan</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="setLocked-boolean-"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>setLocked</h4> |
| <pre>public void setLocked(boolean locked)</pre> |
| <div class="block">Sets whether this planner is locked. A locked planner does not accept |
| new rules. <a href="../../../../../org/apache/calcite/plan/volcano/VolcanoPlanner.html#addRule-org.apache.calcite.plan.RelOptRule-"><code>addRule(org.apache.calcite.plan.RelOptRule)</code></a> will do |
| nothing and return false.</div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>locked</code> - Whether planner is locked</dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
| </ul> |
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