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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.calcite.rel.rules</a></div> |
| <h2 title="Class MultiJoinProjectTransposeRule" class="title">Class MultiJoinProjectTransposeRule</h2> |
| </div> |
| <div class="contentContainer"> |
| <ul class="inheritance"> |
| <li>java.lang.Object</li> |
| <li> |
| <ul class="inheritance"> |
| <li><a href="../../plan/RelOptRule.html" title="class in org.apache.calcite.plan">org.apache.calcite.plan.RelOptRule</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li><a href="JoinProjectTransposeRule.html" title="class in org.apache.calcite.rel.rules">org.apache.calcite.rel.rules.JoinProjectTransposeRule</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.calcite.rel.rules.MultiJoinProjectTransposeRule</li> |
| </ul> |
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| <pre>public class <span class="typeNameLabel">MultiJoinProjectTransposeRule</span> |
| extends <a href="JoinProjectTransposeRule.html" title="class in org.apache.calcite.rel.rules">JoinProjectTransposeRule</a></pre> |
| <div class="block">MultiJoinProjectTransposeRule implements the rule for pulling |
| <a href="../logical/LogicalProject.html" title="class in org.apache.calcite.rel.logical"><code>LogicalProject</code></a>s that are on top of a |
| <a href="MultiJoin.html" title="class in org.apache.calcite.rel.rules"><code>MultiJoin</code></a> and beneath a |
| <a href="../logical/LogicalJoin.html" title="class in org.apache.calcite.rel.logical"><code>LogicalJoin</code></a> so the |
| <a href="../logical/LogicalProject.html" title="class in org.apache.calcite.rel.logical"><code>LogicalProject</code></a> appears above the |
| <a href="../logical/LogicalJoin.html" title="class in org.apache.calcite.rel.logical"><code>LogicalJoin</code></a>. |
| |
| <p>In the process of doing |
| so, also save away information about the respective fields that are |
| referenced in the expressions in the |
| <a href="../logical/LogicalProject.html" title="class in org.apache.calcite.rel.logical"><code>LogicalProject</code></a> we're pulling up, as |
| well as the join condition, in the resultant <a href="MultiJoin.html" title="class in org.apache.calcite.rel.rules"><code>MultiJoin</code></a>s |
| |
| <p>For example, if we have the following sub-query: |
| |
| <blockquote><pre> |
| (select X.x1, Y.y1 from X, Y |
| where X.x2 = Y.y2 and X.x3 = 1 and Y.y3 = 2)</pre></blockquote> |
| |
| <p>The <a href="MultiJoin.html" title="class in org.apache.calcite.rel.rules"><code>MultiJoin</code></a> associated with (X, Y) associates x1 with X and |
| y1 with Y. Although x3 and y3 need to be read due to the filters, they are |
| not required after the row scan has completed and therefore are not saved. |
| The join fields, x2 and y2, are also tracked separately. |
| |
| <p>Note that by only pulling up projects that are on top of |
| <a href="MultiJoin.html" title="class in org.apache.calcite.rel.rules"><code>MultiJoin</code></a>s, we preserve projections on top of row scans. |
| |
| <p>See the superclass for details on restrictions regarding which |
| <a href="../logical/LogicalProject.html" title="class in org.apache.calcite.rel.logical"><code>LogicalProject</code></a>s cannot be pulled.</div> |
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| <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>static <a href="MultiJoinProjectTransposeRule.html" title="class in org.apache.calcite.rel.rules">MultiJoinProjectTransposeRule</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#MULTI_BOTH_PROJECT">MULTI_BOTH_PROJECT</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static <a href="MultiJoinProjectTransposeRule.html" title="class in org.apache.calcite.rel.rules">MultiJoinProjectTransposeRule</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#MULTI_LEFT_PROJECT">MULTI_LEFT_PROJECT</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static <a href="MultiJoinProjectTransposeRule.html" title="class in org.apache.calcite.rel.rules">MultiJoinProjectTransposeRule</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#MULTI_RIGHT_PROJECT">MULTI_RIGHT_PROJECT</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| </table> |
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| <li class="blockList"><a id="fields.inherited.from.class.org.apache.calcite.rel.rules.JoinProjectTransposeRule"> |
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| </a> |
| <h3>Fields inherited from class org.apache.calcite.rel.rules.<a href="JoinProjectTransposeRule.html" title="class in org.apache.calcite.rel.rules">JoinProjectTransposeRule</a></h3> |
| <code><a href="JoinProjectTransposeRule.html#BOTH_PROJECT">BOTH_PROJECT</a>, <a href="JoinProjectTransposeRule.html#BOTH_PROJECT_INCLUDE_OUTER">BOTH_PROJECT_INCLUDE_OUTER</a>, <a href="JoinProjectTransposeRule.html#LEFT_PROJECT">LEFT_PROJECT</a>, <a href="JoinProjectTransposeRule.html#LEFT_PROJECT_INCLUDE_OUTER">LEFT_PROJECT_INCLUDE_OUTER</a>, <a href="JoinProjectTransposeRule.html#RIGHT_PROJECT">RIGHT_PROJECT</a>, <a href="JoinProjectTransposeRule.html#RIGHT_PROJECT_INCLUDE_OUTER">RIGHT_PROJECT_INCLUDE_OUTER</a></code></li> |
| </ul> |
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| </a> |
| <h3>Fields inherited from class org.apache.calcite.plan.<a href="../../plan/RelOptRule.html" title="class in org.apache.calcite.plan">RelOptRule</a></h3> |
| <code><a href="../../plan/RelOptRule.html#description">description</a>, <a href="../../plan/RelOptRule.html#operands">operands</a>, <a href="../../plan/RelOptRule.html#relBuilderFactory">relBuilderFactory</a></code></li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
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| <h3>Constructor Summary</h3> |
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| <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.RelOptRuleOperand,java.lang.String)">MultiJoinProjectTransposeRule</a></span>​(<a href="../../plan/RelOptRuleOperand.html" title="class in org.apache.calcite.plan">RelOptRuleOperand</a> operand, |
| java.lang.String description)</code></th> |
| <td class="colLast"> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span></div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(org.apache.calcite.plan.RelOptRuleOperand,org.apache.calcite.tools.RelBuilderFactory,java.lang.String)">MultiJoinProjectTransposeRule</a></span>​(<a href="../../plan/RelOptRuleOperand.html" title="class in org.apache.calcite.plan">RelOptRuleOperand</a> operand, |
| <a href="../../tools/RelBuilderFactory.html" title="interface in org.apache.calcite.tools">RelBuilderFactory</a> relBuilderFactory, |
| java.lang.String description)</code></th> |
| <td class="colLast"> |
| <div class="block">Creates a MultiJoinProjectTransposeRule.</div> |
| </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| </section> |
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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="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>protected <a href="../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getProjectChild(org.apache.calcite.plan.RelOptRuleCall,org.apache.calcite.rel.core.Project,boolean)">getProjectChild</a></span>​(<a href="../../plan/RelOptRuleCall.html" title="class in org.apache.calcite.plan">RelOptRuleCall</a> call, |
| <a href="../core/Project.html" title="class in org.apache.calcite.rel.core">Project</a> project, |
| boolean leftChild)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the child of the project that will be used as input into the new |
| LogicalJoin once the projects are pulled above the LogicalJoin.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>protected <a href="../core/Project.html" title="class in org.apache.calcite.rel.core">Project</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getRightChild(org.apache.calcite.plan.RelOptRuleCall)">getRightChild</a></span>​(<a href="../../plan/RelOptRuleCall.html" title="class in org.apache.calcite.plan">RelOptRuleCall</a> call)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>protected boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#hasLeftChild(org.apache.calcite.plan.RelOptRuleCall)">hasLeftChild</a></span>​(<a href="../../plan/RelOptRuleCall.html" title="class in org.apache.calcite.plan">RelOptRuleCall</a> call)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>protected boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#hasRightChild(org.apache.calcite.plan.RelOptRuleCall)">hasRightChild</a></span>​(<a href="../../plan/RelOptRuleCall.html" title="class in org.apache.calcite.plan">RelOptRuleCall</a> call)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| </table> |
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| <li class="blockList"><a id="methods.inherited.from.class.org.apache.calcite.rel.rules.JoinProjectTransposeRule"> |
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| </a> |
| <h3>Methods inherited from class org.apache.calcite.rel.rules.<a href="JoinProjectTransposeRule.html" title="class in org.apache.calcite.rel.rules">JoinProjectTransposeRule</a></h3> |
| <code><a href="JoinProjectTransposeRule.html#createProjectExprs(org.apache.calcite.rel.core.Project,org.apache.calcite.rel.RelNode,int,org.apache.calcite.rex.RexBuilder,java.util.List,java.util.List)">createProjectExprs</a>, <a href="JoinProjectTransposeRule.html#onMatch(org.apache.calcite.plan.RelOptRuleCall)">onMatch</a></code></li> |
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| <ul class="blockList"> |
| <li class="blockList"><a id="methods.inherited.from.class.org.apache.calcite.plan.RelOptRule"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from class org.apache.calcite.plan.<a href="../../plan/RelOptRule.html" title="class in org.apache.calcite.plan">RelOptRule</a></h3> |
| <code><a href="../../plan/RelOptRule.html#any()">any</a>, <a href="../../plan/RelOptRule.html#convert(org.apache.calcite.rel.RelNode,org.apache.calcite.plan.RelTrait)">convert</a>, <a href="../../plan/RelOptRule.html#convert(org.apache.calcite.rel.RelNode,org.apache.calcite.plan.RelTraitSet)">convert</a>, <a href="../../plan/RelOptRule.html#convertList(java.util.List,org.apache.calcite.plan.RelTrait)">convertList</a>, <a href="../../plan/RelOptRule.html#convertOperand(java.lang.Class,com.google.common.base.Predicate,org.apache.calcite.plan.RelTrait)">convertOperand</a>, <a href="../../plan/RelOptRule.html#convertOperand(java.lang.Class,java.util.function.Predicate,org.apache.calcite.plan.RelTrait)">convertOperand</a>, <a href="../../plan/RelOptRule.html#equals(java.lang.Object)">equals</a>, <a href="../../plan/RelOptRule.html#equals(org.apache.calcite.plan.RelOptRule)">equals</a>, <a href="../../plan/RelOptRule.html#getOperand()">getOperand</a>, <a href="../../plan/RelOptRule.html#getOperands()">getOperands</a>, <a href="../../plan/RelOptRule.html#getOutConvention()">getOutConvention</a>, <a href="../../plan/RelOptRule.html#getOutTrait()">getOutTrait</a>, <a href="../../plan/RelOptRule.html#hashCode()">hashCode</a>, <a href="../../plan/RelOptRule.html#matches(org.apache.calcite.plan.RelOptRuleCall)">matches</a>, <a href="../../plan/RelOptRule.html#none()">none</a>, <a href="../../plan/RelOptRule.html#operand(java.lang.Class,org.apache.calcite.plan.RelOptRuleOperandChildren)">operand</a>, <a href="../../plan/RelOptRule.html#operand(java.lang.Class,org.apache.calcite.plan.RelOptRuleOperand,org.apache.calcite.plan.RelOptRuleOperand...)">operand</a>, <a href="../../plan/RelOptRule.html#operand(java.lang.Class,org.apache.calcite.plan.RelTrait,com.google.common.base.Predicate,org.apache.calcite.plan.RelOptRuleOperandChildren)">operand</a>, <a href="../../plan/RelOptRule.html#operand(java.lang.Class,org.apache.calcite.plan.RelTrait,com.google.common.base.Predicate,org.apache.calcite.plan.RelOptRuleOperand,org.apache.calcite.plan.RelOptRuleOperand...)">operand</a>, <a href="../../plan/RelOptRule.html#operand(java.lang.Class,org.apache.calcite.plan.RelTrait,org.apache.calcite.plan.RelOptRuleOperandChildren)">operand</a>, <a href="../../plan/RelOptRule.html#operandJ(java.lang.Class,org.apache.calcite.plan.RelTrait,java.util.function.Predicate,org.apache.calcite.plan.RelOptRuleOperandChildren)">operandJ</a>, <a href="../../plan/RelOptRule.html#operandJ(java.lang.Class,org.apache.calcite.plan.RelTrait,java.util.function.Predicate,org.apache.calcite.plan.RelOptRuleOperand,org.apache.calcite.plan.RelOptRuleOperand...)">operandJ</a>, <a href="../../plan/RelOptRule.html#some(org.apache.calcite.plan.RelOptRuleOperand,org.apache.calcite.plan.RelOptRuleOperand...)">some</a>, <a href="../../plan/RelOptRule.html#toString()">toString</a>, <a href="../../plan/RelOptRule.html#unordered(org.apache.calcite.plan.RelOptRuleOperand,org.apache.calcite.plan.RelOptRuleOperand...)">unordered</a></code></li> |
| </ul> |
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| <!-- --> |
| </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"> |
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| <h4>MULTI_BOTH_PROJECT</h4> |
| <pre>public static final <a href="MultiJoinProjectTransposeRule.html" title="class in org.apache.calcite.rel.rules">MultiJoinProjectTransposeRule</a> MULTI_BOTH_PROJECT</pre> |
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| <h4>MULTI_LEFT_PROJECT</h4> |
| <pre>public static final <a href="MultiJoinProjectTransposeRule.html" title="class in org.apache.calcite.rel.rules">MultiJoinProjectTransposeRule</a> MULTI_LEFT_PROJECT</pre> |
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| <h4>MULTI_RIGHT_PROJECT</h4> |
| <pre>public static final <a href="MultiJoinProjectTransposeRule.html" title="class in org.apache.calcite.rel.rules">MultiJoinProjectTransposeRule</a> MULTI_RIGHT_PROJECT</pre> |
| </li> |
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| <h3>Constructor Detail</h3> |
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| <h4>MultiJoinProjectTransposeRule</h4> |
| <pre>@Deprecated |
| public MultiJoinProjectTransposeRule​(<a href="../../plan/RelOptRuleOperand.html" title="class in org.apache.calcite.plan">RelOptRuleOperand</a> operand, |
| java.lang.String description)</pre> |
| <div class="deprecationBlock"><span class="deprecatedLabel">Deprecated.</span></div> |
| </li> |
| </ul> |
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| <h4>MultiJoinProjectTransposeRule</h4> |
| <pre>public MultiJoinProjectTransposeRule​(<a href="../../plan/RelOptRuleOperand.html" title="class in org.apache.calcite.plan">RelOptRuleOperand</a> operand, |
| <a href="../../tools/RelBuilderFactory.html" title="interface in org.apache.calcite.tools">RelBuilderFactory</a> relBuilderFactory, |
| java.lang.String description)</pre> |
| <div class="block">Creates a MultiJoinProjectTransposeRule.</div> |
| </li> |
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| <!-- ============ METHOD DETAIL ========== --> |
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| <h3>Method Detail</h3> |
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| <h4>hasLeftChild</h4> |
| <pre class="methodSignature">protected boolean hasLeftChild​(<a href="../../plan/RelOptRuleCall.html" title="class in org.apache.calcite.plan">RelOptRuleCall</a> call)</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="JoinProjectTransposeRule.html#hasLeftChild(org.apache.calcite.plan.RelOptRuleCall)">hasLeftChild</a></code> in class <code><a href="JoinProjectTransposeRule.html" title="class in org.apache.calcite.rel.rules">JoinProjectTransposeRule</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>call</code> - RelOptRuleCall</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>true if the rule was invoked with a left project child</dd> |
| </dl> |
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| <h4>hasRightChild</h4> |
| <pre class="methodSignature">protected boolean hasRightChild​(<a href="../../plan/RelOptRuleCall.html" title="class in org.apache.calcite.plan">RelOptRuleCall</a> call)</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="JoinProjectTransposeRule.html#hasRightChild(org.apache.calcite.plan.RelOptRuleCall)">hasRightChild</a></code> in class <code><a href="JoinProjectTransposeRule.html" title="class in org.apache.calcite.rel.rules">JoinProjectTransposeRule</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>call</code> - RelOptRuleCall</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>true if the rule was invoked with 2 children</dd> |
| </dl> |
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| <a id="getRightChild(org.apache.calcite.plan.RelOptRuleCall)"> |
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| <h4>getRightChild</h4> |
| <pre class="methodSignature">protected <a href="../core/Project.html" title="class in org.apache.calcite.rel.core">Project</a> getRightChild​(<a href="../../plan/RelOptRuleCall.html" title="class in org.apache.calcite.plan">RelOptRuleCall</a> call)</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="JoinProjectTransposeRule.html#getRightChild(org.apache.calcite.plan.RelOptRuleCall)">getRightChild</a></code> in class <code><a href="JoinProjectTransposeRule.html" title="class in org.apache.calcite.rel.rules">JoinProjectTransposeRule</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>call</code> - RelOptRuleCall</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>LogicalProject corresponding to the right child</dd> |
| </dl> |
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| </ul> |
| <a id="getProjectChild(org.apache.calcite.plan.RelOptRuleCall,org.apache.calcite.rel.core.Project,boolean)"> |
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| <h4>getProjectChild</h4> |
| <pre class="methodSignature">protected <a href="../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> getProjectChild​(<a href="../../plan/RelOptRuleCall.html" title="class in org.apache.calcite.plan">RelOptRuleCall</a> call, |
| <a href="../core/Project.html" title="class in org.apache.calcite.rel.core">Project</a> project, |
| boolean leftChild)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="JoinProjectTransposeRule.html#getProjectChild(org.apache.calcite.plan.RelOptRuleCall,org.apache.calcite.rel.core.Project,boolean)">JoinProjectTransposeRule</a></code></span></div> |
| <div class="block">Returns the child of the project that will be used as input into the new |
| LogicalJoin once the projects are pulled above the LogicalJoin.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="JoinProjectTransposeRule.html#getProjectChild(org.apache.calcite.plan.RelOptRuleCall,org.apache.calcite.rel.core.Project,boolean)">getProjectChild</a></code> in class <code><a href="JoinProjectTransposeRule.html" title="class in org.apache.calcite.rel.rules">JoinProjectTransposeRule</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>call</code> - RelOptRuleCall</dd> |
| <dd><code>project</code> - project RelNode</dd> |
| <dd><code>leftChild</code> - true if the project corresponds to the left projection</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>child of the project that will be used as input into the new |
| LogicalJoin once the projects are pulled above the LogicalJoin</dd> |
| </dl> |
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