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| <div class="subTitle">org.apache.calcite.rel.rules</div> |
| <h2 title="Class LoptMultiJoin" class="title">Class LoptMultiJoin</h2> |
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| <div class="contentContainer"> |
| <ul class="inheritance"> |
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| <li> |
| <ul class="inheritance"> |
| <li>org.apache.calcite.rel.rules.LoptMultiJoin</li> |
| </ul> |
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| <pre>public class <span class="typeNameLabel">LoptMultiJoin</span> |
| extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre> |
| <div class="block">Utility class that keeps track of the join factors that |
| make up a <a href="../../../../../org/apache/calcite/rel/rules/MultiJoin.html" title="class in org.apache.calcite.rel.rules"><code>MultiJoin</code></a>.</div> |
| </li> |
| </ul> |
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| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
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| <h3>Constructor Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation"> |
| <caption><span>Constructors</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colOne" scope="col">Constructor and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#LoptMultiJoin-org.apache.calcite.rel.rules.MultiJoin-">LoptMultiJoin</a></span>(<a href="../../../../../org/apache/calcite/rel/rules/MultiJoin.html" title="class in org.apache.calcite.rel.rules">MultiJoin</a> multiJoin)</code> </td> |
| </tr> |
| </table> |
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| <!-- ========== METHOD SUMMARY =========== --> |
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| <h3>Method Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> |
| <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><span id="t6" class="tableTab"><span><a href="javascript:show(32);">Deprecated Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Method and Description</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/rel/rules/LoptMultiJoin.html#addRemovableOuterJoinFactor-int-">addRemovableOuterJoinFactor</a></span>(int factIdx)</code> |
| <div class="block">Adds a join factor to the set of factors that can be removed because the |
| factor is the null generating factor in an outer join, its join keys are |
| unique, and the factor is not projected in the query</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/rel/rules/LoptMultiJoin.html#addRemovableSelfJoinPair-int-int-">addRemovableSelfJoinPair</a></span>(int factor1, |
| int factor2)</code> |
| <div class="block">Adds to a map that keeps track of removable self-join pairs.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>org.apache.calcite.rel.rules.LoptMultiJoin.Edge</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#createEdge-org.apache.calcite.rex.RexNode-">createEdge</a></span>(<a href="../../../../../org/apache/calcite/rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> condition)</code> </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#findRef-int-">findRef</a></span>(int rexInputRef)</code> |
| <div class="block">Determines the join factor corresponding to a RexInputRef</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#getChildFactors-org.apache.calcite.rel.rules.LoptJoinTree-org.apache.calcite.util.ImmutableBitSet.Builder-">getChildFactors</a></span>(<a href="../../../../../org/apache/calcite/rel/rules/LoptJoinTree.html" title="class in org.apache.calcite.rel.rules">LoptJoinTree</a> joinTree, |
| <a href="../../../../../org/apache/calcite/util/ImmutableBitSet.Builder.html" title="class in org.apache.calcite.util">ImmutableBitSet.Builder</a> childFactors)</code> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> </div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/util/ImmutableBitSet.html" title="class in org.apache.calcite.util">ImmutableBitSet</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#getFactorsRefByFactor-int-">getFactorsRefByFactor</a></span>(int factIdx)</code> </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/util/ImmutableBitSet.html" title="class in org.apache.calcite.util">ImmutableBitSet</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#getFactorsRefByJoinFilter-org.apache.calcite.rex.RexNode-">getFactorsRefByJoinFilter</a></span>(<a href="../../../../../org/apache/calcite/rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> joinFilter)</code> </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>int[][]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#getFactorWeights--">getFactorWeights</a></span>()</code> </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/util/ImmutableBitSet.html" title="class in org.apache.calcite.util">ImmutableBitSet</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#getFieldsRefByJoinFilter-org.apache.calcite.rex.RexNode-">getFieldsRefByJoinFilter</a></span>(<a href="../../../../../org/apache/calcite/rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> joinFilter)</code> </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#getJoinFactor-int-">getJoinFactor</a></span>(int factIdx)</code> </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code>int[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#getJoinFieldRefCounts-int-">getJoinFieldRefCounts</a></span>(int factIdx)</code> </td> |
| </tr> |
| <tr id="i11" class="rowColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../../org/apache/calcite/rel/type/RelDataTypeField.html" title="interface in org.apache.calcite.rel.type">RelDataTypeField</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#getJoinFields-org.apache.calcite.rel.rules.LoptJoinTree-org.apache.calcite.rel.rules.LoptJoinTree-">getJoinFields</a></span>(<a href="../../../../../org/apache/calcite/rel/rules/LoptJoinTree.html" title="class in org.apache.calcite.rel.rules">LoptJoinTree</a> left, |
| <a href="../../../../../org/apache/calcite/rel/rules/LoptJoinTree.html" title="class in org.apache.calcite.rel.rules">LoptJoinTree</a> right)</code> |
| <div class="block">Retrieves the fields corresponding to a join between a left and right |
| tree</div> |
| </td> |
| </tr> |
| <tr id="i12" class="altColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../../org/apache/calcite/rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#getJoinFilters--">getJoinFilters</a></span>()</code> </td> |
| </tr> |
| <tr id="i13" class="rowColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#getJoinRemovalFactor-int-">getJoinRemovalFactor</a></span>(int dimIdx)</code> </td> |
| </tr> |
| <tr id="i14" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/rel/logical/LogicalJoin.html" title="class in org.apache.calcite.rel.logical">LogicalJoin</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#getJoinRemovalSemiJoin-int-">getJoinRemovalSemiJoin</a></span>(int dimIdx)</code> </td> |
| </tr> |
| <tr id="i15" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#getJoinStart-int-">getJoinStart</a></span>(int factIdx)</code> </td> |
| </tr> |
| <tr id="i16" class="altColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../../org/apache/calcite/rel/type/RelDataTypeField.html" title="interface in org.apache.calcite.rel.type">RelDataTypeField</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#getMultiJoinFields--">getMultiJoinFields</a></span>()</code> |
| <div class="block">Returns array of fields contained within the multi-join</div> |
| </td> |
| </tr> |
| <tr id="i17" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/rel/rules/MultiJoin.html" title="class in org.apache.calcite.rel.rules">MultiJoin</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#getMultiJoinRel--">getMultiJoinRel</a></span>()</code> </td> |
| </tr> |
| <tr id="i18" class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#getNumFieldsInJoinFactor-int-">getNumFieldsInJoinFactor</a></span>(int factIdx)</code> </td> |
| </tr> |
| <tr id="i19" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#getNumJoinFactors--">getNumJoinFactors</a></span>()</code> </td> |
| </tr> |
| <tr id="i20" class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#getNumTotalFields--">getNumTotalFields</a></span>()</code> </td> |
| </tr> |
| <tr id="i21" class="rowColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#getOtherSelfJoinFactor-int-">getOtherSelfJoinFactor</a></span>(int factIdx)</code> |
| <div class="block">Returns the other factor in a self-join pair if the factor passed in is |
| a factor in a removable self-join; otherwise, returns null.</div> |
| </td> |
| </tr> |
| <tr id="i22" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#getOuterJoinCond-int-">getOuterJoinCond</a></span>(int factIdx)</code> </td> |
| </tr> |
| <tr id="i23" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/util/ImmutableBitSet.html" title="class in org.apache.calcite.util">ImmutableBitSet</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#getOuterJoinFactors-int-">getOuterJoinFactors</a></span>(int factIdx)</code> </td> |
| </tr> |
| <tr id="i24" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/util/ImmutableBitSet.html" title="class in org.apache.calcite.util">ImmutableBitSet</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#getProjFields-int-">getProjFields</a></span>(int factIdx)</code> </td> |
| </tr> |
| <tr id="i25" class="rowColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#getRightColumnMapping-int-int-">getRightColumnMapping</a></span>(int rightFactor, |
| int rightOffset)</code> |
| <div class="block">Determines whether there is a mapping from a column in the right factor |
| of a self-join to a column from the left factor.</div> |
| </td> |
| </tr> |
| <tr id="i26" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#hasAllFactors-org.apache.calcite.rel.rules.LoptJoinTree-java.util.BitSet-">hasAllFactors</a></span>(<a href="../../../../../org/apache/calcite/rel/rules/LoptJoinTree.html" title="class in org.apache.calcite.rel.rules">LoptJoinTree</a> joinTree, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/BitSet.html?is-external=true" title="class or interface in java.util">BitSet</a> factorsNeeded)</code> |
| <div class="block">Returns true if a join tree contains all factors required</div> |
| </td> |
| </tr> |
| <tr id="i27" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#isLeftFactorInRemovableSelfJoin-int-">isLeftFactorInRemovableSelfJoin</a></span>(int factIdx)</code> </td> |
| </tr> |
| <tr id="i28" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#isNullGenerating-int-">isNullGenerating</a></span>(int factIdx)</code> </td> |
| </tr> |
| <tr id="i29" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#isRemovableOuterJoinFactor-int-">isRemovableOuterJoinFactor</a></span>(int factIdx)</code> </td> |
| </tr> |
| <tr id="i30" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#isRightFactorInRemovableSelfJoin-int-">isRightFactorInRemovableSelfJoin</a></span>(int factIdx)</code> </td> |
| </tr> |
| <tr id="i31" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#setFactorWeights--">setFactorWeights</a></span>()</code> |
| <div class="block">Sets weighting for each combination of factors, depending on which join |
| filters reference which factors.</div> |
| </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/rel/rules/LoptMultiJoin.html#setJoinRemovalFactor-int-int-">setJoinRemovalFactor</a></span>(int dimIdx, |
| int factIdx)</code> |
| <div class="block">Indicates that a dimension factor's join can be removed because of a |
| semijoin with a fact table.</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/rel/rules/LoptMultiJoin.html#setJoinRemovalSemiJoin-int-org.apache.calcite.rel.logical.LogicalJoin-">setJoinRemovalSemiJoin</a></span>(int dimIdx, |
| <a href="../../../../../org/apache/calcite/rel/logical/LogicalJoin.html" title="class in org.apache.calcite.rel.logical">LogicalJoin</a> semiJoin)</code> |
| <div class="block">Indicates the semijoin that allows the join of a dimension table to be |
| removed</div> |
| </td> |
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| <h3>Constructor Detail</h3> |
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| <h4>LoptMultiJoin</h4> |
| <pre>public LoptMultiJoin(<a href="../../../../../org/apache/calcite/rel/rules/MultiJoin.html" title="class in org.apache.calcite.rel.rules">MultiJoin</a> multiJoin)</pre> |
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| <h3>Method Detail</h3> |
| <a name="getMultiJoinRel--"> |
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| <h4>getMultiJoinRel</h4> |
| <pre>public <a href="../../../../../org/apache/calcite/rel/rules/MultiJoin.html" title="class in org.apache.calcite.rel.rules">MultiJoin</a> getMultiJoinRel()</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the MultiJoin corresponding to this multijoin</dd> |
| </dl> |
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| </ul> |
| <a name="getNumJoinFactors--"> |
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| <h4>getNumJoinFactors</h4> |
| <pre>public int getNumJoinFactors()</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>number of factors in this multijoin</dd> |
| </dl> |
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| <h4>getJoinFactor</h4> |
| <pre>public <a href="../../../../../org/apache/calcite/rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> getJoinFactor(int factIdx)</pre> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>factIdx</code> - factor to be returned</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>factor corresponding to the factor index passed in</dd> |
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| <h4>getNumTotalFields</h4> |
| <pre>public int getNumTotalFields()</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>total number of fields in the multijoin</dd> |
| </dl> |
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| <h4>getNumFieldsInJoinFactor</h4> |
| <pre>public int getNumFieldsInJoinFactor(int factIdx)</pre> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>factIdx</code> - desired factor</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>number of fields in the specified factor</dd> |
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| <h4>getJoinFilters</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../../org/apache/calcite/rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>> getJoinFilters()</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>all non-outer join filters in this multijoin</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getFactorsRefByJoinFilter-org.apache.calcite.rex.RexNode-"> |
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| <h4>getFactorsRefByJoinFilter</h4> |
| <pre>public <a href="../../../../../org/apache/calcite/util/ImmutableBitSet.html" title="class in org.apache.calcite.util">ImmutableBitSet</a> getFactorsRefByJoinFilter(<a href="../../../../../org/apache/calcite/rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> joinFilter)</pre> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>joinFilter</code> - filter for which information will be returned</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>bitmap corresponding to the factors referenced within the |
| specified join filter</dd> |
| </dl> |
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| <h4>getMultiJoinFields</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../../org/apache/calcite/rel/type/RelDataTypeField.html" title="interface in org.apache.calcite.rel.type">RelDataTypeField</a>> getMultiJoinFields()</pre> |
| <div class="block">Returns array of fields contained within the multi-join</div> |
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| <h4>getFieldsRefByJoinFilter</h4> |
| <pre>public <a href="../../../../../org/apache/calcite/util/ImmutableBitSet.html" title="class in org.apache.calcite.util">ImmutableBitSet</a> getFieldsRefByJoinFilter(<a href="../../../../../org/apache/calcite/rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> joinFilter)</pre> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>joinFilter</code> - the filter for which information will be returned</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>bitmap corresponding to the fields referenced by a join filter</dd> |
| </dl> |
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| <h4>getFactorWeights</h4> |
| <pre>public int[][] getFactorWeights()</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>weights of the different factors relative to one another</dd> |
| </dl> |
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| <pre>public <a href="../../../../../org/apache/calcite/util/ImmutableBitSet.html" title="class in org.apache.calcite.util">ImmutableBitSet</a> getFactorsRefByFactor(int factIdx)</pre> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>factIdx</code> - factor for which information will be returned</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>bitmap corresponding to the factors referenced by the specified |
| factor in the various join filters that correspond to comparisons</dd> |
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| <pre>public int getJoinStart(int factIdx)</pre> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>factIdx</code> - factor for which information will be returned</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>starting offset within the multijoin for the specified factor</dd> |
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| <pre>public boolean isNullGenerating(int factIdx)</pre> |
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| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>factIdx</code> - factor for which information will be returned</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>whether or not the factor corresponds to a null-generating factor |
| in a left or right outer join</dd> |
| </dl> |
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| <pre>public <a href="../../../../../org/apache/calcite/util/ImmutableBitSet.html" title="class in org.apache.calcite.util">ImmutableBitSet</a> getOuterJoinFactors(int factIdx)</pre> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>factIdx</code> - factor for which information will be returned</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>bitmap containing the factors that a null generating factor is |
| dependent upon, if the factor is null generating in a left or right outer |
| join; otherwise null is returned</dd> |
| </dl> |
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| <pre>public <a href="../../../../../org/apache/calcite/rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> getOuterJoinCond(int factIdx)</pre> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>factIdx</code> - factor for which information will be returned</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>outer join conditions associated with the specified null |
| generating factor</dd> |
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| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>factIdx</code> - factor for which information will be returned</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>bitmap containing the fields that are projected from a factor</dd> |
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| <pre>public int[] getJoinFieldRefCounts(int factIdx)</pre> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>factIdx</code> - factor for which information will be returned</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the join field reference counts for a factor</dd> |
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| <h4>getJoinRemovalFactor</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a> getJoinRemovalFactor(int dimIdx)</pre> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>dimIdx</code> - the dimension factor for which information will be returned</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the factor id of the fact table corresponding to a dimension |
| table in a semijoin, in the case where the join with the dimension table |
| can be removed</dd> |
| </dl> |
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| <pre>public <a href="../../../../../org/apache/calcite/rel/logical/LogicalJoin.html" title="class in org.apache.calcite.rel.logical">LogicalJoin</a> getJoinRemovalSemiJoin(int dimIdx)</pre> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>dimIdx</code> - the dimension factor for which information will be returned</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the semijoin that allows the join of a dimension table to be |
| removed</dd> |
| </dl> |
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| <h4>setJoinRemovalFactor</h4> |
| <pre>public void setJoinRemovalFactor(int dimIdx, |
| int factIdx)</pre> |
| <div class="block">Indicates that a dimension factor's join can be removed because of a |
| semijoin with a fact table.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>dimIdx</code> - id of the dimension factor</dd> |
| <dd><code>factIdx</code> - id of the fact factor</dd> |
| </dl> |
| </li> |
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| <h4>setJoinRemovalSemiJoin</h4> |
| <pre>public void setJoinRemovalSemiJoin(int dimIdx, |
| <a href="../../../../../org/apache/calcite/rel/logical/LogicalJoin.html" title="class in org.apache.calcite.rel.logical">LogicalJoin</a> semiJoin)</pre> |
| <div class="block">Indicates the semijoin that allows the join of a dimension table to be |
| removed</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>dimIdx</code> - id of the dimension factor</dd> |
| <dd><code>semiJoin</code> - the semijoin</dd> |
| </dl> |
| </li> |
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| <h4>findRef</h4> |
| <pre>public int findRef(int rexInputRef)</pre> |
| <div class="block">Determines the join factor corresponding to a RexInputRef</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>rexInputRef</code> - rexInputRef index</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>index corresponding to join factor</dd> |
| </dl> |
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| <h4>setFactorWeights</h4> |
| <pre>public void setFactorWeights()</pre> |
| <div class="block">Sets weighting for each combination of factors, depending on which join |
| filters reference which factors. Greater weight is given to equality |
| conditions. Also, sets bitmaps indicating which factors are referenced by |
| each factor within join filters that are comparisons.</div> |
| </li> |
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| <h4>hasAllFactors</h4> |
| <pre>public boolean hasAllFactors(<a href="../../../../../org/apache/calcite/rel/rules/LoptJoinTree.html" title="class in org.apache.calcite.rel.rules">LoptJoinTree</a> joinTree, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/BitSet.html?is-external=true" title="class or interface in java.util">BitSet</a> factorsNeeded)</pre> |
| <div class="block">Returns true if a join tree contains all factors required</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>joinTree</code> - join tree to be examined</dd> |
| <dd><code>factorsNeeded</code> - bitmap of factors required</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>true if join tree contains all required factors</dd> |
| </dl> |
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| </ul> |
| <a name="getChildFactors-org.apache.calcite.rel.rules.LoptJoinTree-org.apache.calcite.util.ImmutableBitSet.Builder-"> |
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| <h4>getChildFactors</h4> |
| <pre><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang">@Deprecated</a> |
| public void getChildFactors(<a href="../../../../../org/apache/calcite/rel/rules/LoptJoinTree.html" title="class in org.apache.calcite.rel.rules">LoptJoinTree</a> joinTree, |
| <a href="../../../../../org/apache/calcite/util/ImmutableBitSet.Builder.html" title="class in org.apache.calcite.util">ImmutableBitSet.Builder</a> childFactors)</pre> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> </div> |
| <div class="block">Sets a bitmap indicating all child RelNodes in a join tree</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>joinTree</code> - join tree to be examined</dd> |
| <dd><code>childFactors</code> - bitmap to be set</dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>getJoinFields</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../../org/apache/calcite/rel/type/RelDataTypeField.html" title="interface in org.apache.calcite.rel.type">RelDataTypeField</a>> getJoinFields(<a href="../../../../../org/apache/calcite/rel/rules/LoptJoinTree.html" title="class in org.apache.calcite.rel.rules">LoptJoinTree</a> left, |
| <a href="../../../../../org/apache/calcite/rel/rules/LoptJoinTree.html" title="class in org.apache.calcite.rel.rules">LoptJoinTree</a> right)</pre> |
| <div class="block">Retrieves the fields corresponding to a join between a left and right |
| tree</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>left</code> - left hand side of the join</dd> |
| <dd><code>right</code> - right hand side of the join</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>fields of the join</dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>addRemovableOuterJoinFactor</h4> |
| <pre>public void addRemovableOuterJoinFactor(int factIdx)</pre> |
| <div class="block">Adds a join factor to the set of factors that can be removed because the |
| factor is the null generating factor in an outer join, its join keys are |
| unique, and the factor is not projected in the query</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>factIdx</code> - join factor</dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>isRemovableOuterJoinFactor</h4> |
| <pre>public boolean isRemovableOuterJoinFactor(int factIdx)</pre> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>factIdx</code> - factor in question</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>true if the factor corresponds to the null generating factor in |
| an outer join that can be removed</dd> |
| </dl> |
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| <h4>addRemovableSelfJoinPair</h4> |
| <pre>public void addRemovableSelfJoinPair(int factor1, |
| int factor2)</pre> |
| <div class="block">Adds to a map that keeps track of removable self-join pairs.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>factor1</code> - one of the factors in the self-join</dd> |
| <dd><code>factor2</code> - the second factor in the self-join</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getOtherSelfJoinFactor-int-"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>getOtherSelfJoinFactor</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a> getOtherSelfJoinFactor(int factIdx)</pre> |
| <div class="block">Returns the other factor in a self-join pair if the factor passed in is |
| a factor in a removable self-join; otherwise, returns null.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>factIdx</code> - one of the factors in a self-join pair</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="isLeftFactorInRemovableSelfJoin-int-"> |
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| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>isLeftFactorInRemovableSelfJoin</h4> |
| <pre>public boolean isLeftFactorInRemovableSelfJoin(int factIdx)</pre> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>factIdx</code> - factor in a self-join</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>true if the factor is the left factor in a self-join</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="isRightFactorInRemovableSelfJoin-int-"> |
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| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>isRightFactorInRemovableSelfJoin</h4> |
| <pre>public boolean isRightFactorInRemovableSelfJoin(int factIdx)</pre> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>factIdx</code> - factor in a self-join</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>true if the factor is the right factor in a self-join</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getRightColumnMapping-int-int-"> |
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| <ul class="blockList"> |
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| <h4>getRightColumnMapping</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a> getRightColumnMapping(int rightFactor, |
| int rightOffset)</pre> |
| <div class="block">Determines whether there is a mapping from a column in the right factor |
| of a self-join to a column from the left factor. Assumes that the right |
| factor is a part of a self-join.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>rightFactor</code> - the index of the right factor</dd> |
| <dd><code>rightOffset</code> - the column offset of the right factor</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the offset of the corresponding column in the left factor, if |
| such a column mapping exists; otherwise, null is returned</dd> |
| </dl> |
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| <h4>createEdge</h4> |
| <pre>public org.apache.calcite.rel.rules.LoptMultiJoin.Edge createEdge(<a href="../../../../../org/apache/calcite/rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> condition)</pre> |
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