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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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| <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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| <h3>Nested Class Summary</h3> |
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| <caption><span>Nested Classes</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Class and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>(package private) static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.Edge.html" title="class in org.apache.calcite.rel.rules">LoptMultiJoin.Edge</a></span></code> |
| <div class="block">Information about a join-condition.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.RemovableSelfJoin.html" title="class in org.apache.calcite.rel.rules">LoptMultiJoin.RemovableSelfJoin</a></span></code> |
| <div class="block">Utility class used to keep track of the factors in a removable self-join.</div> |
| </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| <!-- =========== FIELD SUMMARY =========== --> |
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| </a> |
| <h3>Field Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Field Summary table, listing fields, and an explanation"> |
| <caption><span>Fields</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Field and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private <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#allJoinFilters">allJoinFilters</a></span></code> |
| <div class="block">All join filters associated with the MultiJoin, decomposed into a |
| list.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>(package private) <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#factorsRefByFactor">factorsRefByFactor</a></span></code> |
| <div class="block">Bitmap indicating which factors each factor references in join filters |
| that correspond to comparisons</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<a href="../../../../../org/apache/calcite/rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>,<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#factorsRefByJoinFilter">factorsRefByJoinFilter</a></span></code> |
| <div class="block">For each join filter, associates a bitmap indicating all factors |
| referenced by the filter</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>(package private) int[][]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#factorWeights">factorWeights</a></span></code> |
| <div class="block">Weights of each factor combination</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>(package private) <a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactory.html" title="interface in org.apache.calcite.rel.type">RelDataTypeFactory</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#factory">factory</a></span></code> |
| <div class="block">Type factory</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<a href="../../../../../org/apache/calcite/rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>,<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#fieldsRefByJoinFilter">fieldsRefByJoinFilter</a></span></code> |
| <div class="block">For each join filter, associates a bitmap indicating all fields |
| referenced by the filter</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private com.google.common.collect.ImmutableList<<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#joinFactors">joinFactors</a></span></code> |
| <div class="block">Original inputs into the MultiJoin</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<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>,int[]></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#joinFieldRefCountsMap">joinFieldRefCountsMap</a></span></code> |
| <div class="block">Map containing reference counts of the fields referenced in join |
| conditions for each join factor.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private <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#joinFilters">joinFilters</a></span></code> |
| <div class="block">Join filters associated with the MultiJoin, decomposed into a list.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>(package private) <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#joinRemovalFactors">joinRemovalFactors</a></span></code> |
| <div class="block">Indicates for each factor whether its join can be removed because it is |
| the dimension table in a semijoin.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>(package private) <a href="../../../../../org/apache/calcite/rel/core/SemiJoin.html" title="class in org.apache.calcite.rel.core">SemiJoin</a>[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#joinRemovalSemiJoins">joinRemovalSemiJoins</a></span></code> |
| <div class="block">The semijoins that allow the join of a dimension table to be removed</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>(package private) int[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#joinStart">joinStart</a></span></code> |
| <div class="block">Starting RexInputRef index corresponding to each join factor</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private com.google.common.collect.ImmutableList<<a href="../../../../../org/apache/calcite/rel/core/JoinRelType.html" title="enum in org.apache.calcite.rel.core">JoinRelType</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#joinTypes">joinTypes</a></span></code> |
| <div class="block">If a join factor is null generating in a left or right outer join, |
| joinTypes indicates the join type corresponding to the factor.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>(package private) <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#multiJoin">multiJoin</a></span></code> |
| <div class="block">The MultiJoin being optimized</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>(package private) int[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#nFieldsInJoinFactor">nFieldsInJoinFactor</a></span></code> |
| <div class="block">Number of fields in each join factor</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#nJoinFactors">nJoinFactors</a></span></code> |
| <div class="block">Number of factors into the MultiJoin</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#nTotalFields">nTotalFields</a></span></code> |
| <div class="block">Total number of fields in the MultiJoin</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private <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#outerJoinFactors">outerJoinFactors</a></span></code> |
| <div class="block">If a join factor is null generating in a left or right outer join, the |
| bitmap contains the non-null generating factors that the null generating |
| factor is dependent upon</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private <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/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#projFields">projFields</a></span></code> |
| <div class="block">Bitmap corresponding to the fields projected from each join factor, after |
| row scan processing has completed.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>(package private) <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a><<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#removableOuterJoinFactors">removableOuterJoinFactors</a></span></code> |
| <div class="block">Set of null-generating factors whose corresponding outer join can be |
| removed from the query plan</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>(package private) <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<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>,<a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.RemovableSelfJoin.html" title="class in org.apache.calcite.rel.rules">LoptMultiJoin.RemovableSelfJoin</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#removableSelfJoinPairs">removableSelfJoinPairs</a></span></code> |
| <div class="block">Map consisting of all pairs of self-joins where the self-join can be |
| removed because the join between the identical factors is an equality |
| join on the same set of unique keys.</div> |
| </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="constructor.summary"> |
| <!-- --> |
| </a> |
| <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> |
| </li> |
| </ul> |
| <!-- ========== METHOD SUMMARY =========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="method.summary"> |
| <!-- --> |
| </a> |
| <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><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.Edge.html" title="class in org.apache.calcite.rel.rules">LoptMultiJoin.Edge</a></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>private <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#factorBitmap-org.apache.calcite.util.ImmutableBitSet-">factorBitmap</a></span>(<a href="../../../../../org/apache/calcite/util/ImmutableBitSet.html" title="class in org.apache.calcite.util">ImmutableBitSet</a> fieldRefBitmap)</code> |
| <div class="block">Sets the bitmap indicating which factors a filter references based on |
| which fields it references</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>private <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#fieldBitmap-org.apache.calcite.rex.RexNode-">fieldBitmap</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="i5" 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="i6" 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="i7" 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="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#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="i9" 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="i10" 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="i11" 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="i12" 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="i13" 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="i14" class="altColor"> |
| <td class="colFirst"><code>(package private) <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#getJoinFilterFactorBitmap-org.apache.calcite.rex.RexNode-boolean-">getJoinFilterFactorBitmap</a></span>(<a href="../../../../../org/apache/calcite/rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> joinFilter, |
| boolean setFields)</code> |
| <div class="block">Returns a bitmap representing the factors referenced in a join filter</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="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="i16" class="altColor"> |
| <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="i17" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/rel/core/SemiJoin.html" title="class in org.apache.calcite.rel.core">SemiJoin</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="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#getJoinStart-int-">getJoinStart</a></span>(int factIdx)</code> </td> |
| </tr> |
| <tr id="i19" 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#getMultiJoinFields--">getMultiJoinFields</a></span>()</code> |
| <div class="block">Returns array of fields contained within the multi-join</div> |
| </td> |
| </tr> |
| <tr id="i20" class="altColor"> |
| <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="i21" 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#getNumFieldsInJoinFactor-int-">getNumFieldsInJoinFactor</a></span>(int factIdx)</code> </td> |
| </tr> |
| <tr id="i22" 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#getNumJoinFactors--">getNumJoinFactors</a></span>()</code> </td> |
| </tr> |
| <tr id="i23" 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#getNumTotalFields--">getNumTotalFields</a></span>()</code> </td> |
| </tr> |
| <tr id="i24" class="altColor"> |
| <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="i25" class="rowColor"> |
| <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="i26" 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#getOuterJoinFactors-int-">getOuterJoinFactors</a></span>(int factIdx)</code> </td> |
| </tr> |
| <tr id="i27" 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#getProjFields-int-">getProjFields</a></span>(int factIdx)</code> </td> |
| </tr> |
| <tr id="i28" class="altColor"> |
| <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="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#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="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#isLeftFactorInRemovableSelfJoin-int-">isLeftFactorInRemovableSelfJoin</a></span>(int factIdx)</code> </td> |
| </tr> |
| <tr id="i31" 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#isNullGenerating-int-">isNullGenerating</a></span>(int factIdx)</code> </td> |
| </tr> |
| <tr id="i32" 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#isRemovableOuterJoinFactor-int-">isRemovableOuterJoinFactor</a></span>(int factIdx)</code> </td> |
| </tr> |
| <tr id="i33" 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#isRightFactorInRemovableSelfJoin-int-">isRightFactorInRemovableSelfJoin</a></span>(int factIdx)</code> </td> |
| </tr> |
| <tr id="i34" class="altColor"> |
| <td class="colFirst"><code>private void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#setFactorWeight-int-int-int-">setFactorWeight</a></span>(int weight, |
| int leftFactor, |
| int rightFactor)</code> |
| <div class="block">Sets an individual weight if the new weight is better than the current |
| one</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/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="i36" class="altColor"> |
| <td class="colFirst"><code>private void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.html#setJoinFilterRefs--">setJoinFilterRefs</a></span>()</code> |
| <div class="block">Sets bitmaps indicating which factors and fields each join filter |
| references</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/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="i38" 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#setJoinRemovalSemiJoin-int-org.apache.calcite.rel.core.SemiJoin-">setJoinRemovalSemiJoin</a></span>(int dimIdx, |
| <a href="../../../../../org/apache/calcite/rel/core/SemiJoin.html" title="class in org.apache.calcite.rel.core">SemiJoin</a> semiJoin)</code> |
| <div class="block">Indicates the semijoin that allows the join of a dimension table to be |
| removed</div> |
| </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
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| <h3>Methods inherited from class java.lang.<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></h3> |
| <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">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"> |
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| </a> |
| <h3>Field Detail</h3> |
| <a name="multiJoin"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>multiJoin</h4> |
| <pre><a href="../../../../../org/apache/calcite/rel/rules/MultiJoin.html" title="class in org.apache.calcite.rel.rules">MultiJoin</a> multiJoin</pre> |
| <div class="block">The MultiJoin being optimized</div> |
| </li> |
| </ul> |
| <a name="joinFilters"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>joinFilters</h4> |
| <pre>private <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>> joinFilters</pre> |
| <div class="block">Join filters associated with the MultiJoin, decomposed into a list. |
| Excludes left/right outer join filters.</div> |
| </li> |
| </ul> |
| <a name="allJoinFilters"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>allJoinFilters</h4> |
| <pre>private <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>> allJoinFilters</pre> |
| <div class="block">All join filters associated with the MultiJoin, decomposed into a |
| list. Includes left/right outer join filters.</div> |
| </li> |
| </ul> |
| <a name="nJoinFactors"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>nJoinFactors</h4> |
| <pre>private final int nJoinFactors</pre> |
| <div class="block">Number of factors into the MultiJoin</div> |
| </li> |
| </ul> |
| <a name="nTotalFields"> |
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| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>nTotalFields</h4> |
| <pre>private int nTotalFields</pre> |
| <div class="block">Total number of fields in the MultiJoin</div> |
| </li> |
| </ul> |
| <a name="joinFactors"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>joinFactors</h4> |
| <pre>private final com.google.common.collect.ImmutableList<<a href="../../../../../org/apache/calcite/rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>> joinFactors</pre> |
| <div class="block">Original inputs into the MultiJoin</div> |
| </li> |
| </ul> |
| <a name="joinTypes"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>joinTypes</h4> |
| <pre>private final com.google.common.collect.ImmutableList<<a href="../../../../../org/apache/calcite/rel/core/JoinRelType.html" title="enum in org.apache.calcite.rel.core">JoinRelType</a>> joinTypes</pre> |
| <div class="block">If a join factor is null generating in a left or right outer join, |
| joinTypes indicates the join type corresponding to the factor. Otherwise, |
| it is set to INNER.</div> |
| </li> |
| </ul> |
| <a name="outerJoinFactors"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>outerJoinFactors</h4> |
| <pre>private final <a href="../../../../../org/apache/calcite/util/ImmutableBitSet.html" title="class in org.apache.calcite.util">ImmutableBitSet</a>[] outerJoinFactors</pre> |
| <div class="block">If a join factor is null generating in a left or right outer join, the |
| bitmap contains the non-null generating factors that the null generating |
| factor is dependent upon</div> |
| </li> |
| </ul> |
| <a name="projFields"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>projFields</h4> |
| <pre>private <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/util/ImmutableBitSet.html" title="class in org.apache.calcite.util">ImmutableBitSet</a>> projFields</pre> |
| <div class="block">Bitmap corresponding to the fields projected from each join factor, after |
| row scan processing has completed. This excludes fields referenced in |
| join conditions, unless the field appears in the final projection list.</div> |
| </li> |
| </ul> |
| <a name="joinFieldRefCountsMap"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>joinFieldRefCountsMap</h4> |
| <pre>private <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<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>,int[]> joinFieldRefCountsMap</pre> |
| <div class="block">Map containing reference counts of the fields referenced in join |
| conditions for each join factor. If a field is only required for a |
| semijoin, then it is removed from the reference count. (Hence the need |
| for reference counts instead of simply a bitmap.) The map is indexed by |
| the factor number.</div> |
| </li> |
| </ul> |
| <a name="factorsRefByJoinFilter"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>factorsRefByJoinFilter</h4> |
| <pre>private <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<a href="../../../../../org/apache/calcite/rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>,<a href="../../../../../org/apache/calcite/util/ImmutableBitSet.html" title="class in org.apache.calcite.util">ImmutableBitSet</a>> factorsRefByJoinFilter</pre> |
| <div class="block">For each join filter, associates a bitmap indicating all factors |
| referenced by the filter</div> |
| </li> |
| </ul> |
| <a name="fieldsRefByJoinFilter"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>fieldsRefByJoinFilter</h4> |
| <pre>private <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<a href="../../../../../org/apache/calcite/rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>,<a href="../../../../../org/apache/calcite/util/ImmutableBitSet.html" title="class in org.apache.calcite.util">ImmutableBitSet</a>> fieldsRefByJoinFilter</pre> |
| <div class="block">For each join filter, associates a bitmap indicating all fields |
| referenced by the filter</div> |
| </li> |
| </ul> |
| <a name="joinStart"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>joinStart</h4> |
| <pre>int[] joinStart</pre> |
| <div class="block">Starting RexInputRef index corresponding to each join factor</div> |
| </li> |
| </ul> |
| <a name="nFieldsInJoinFactor"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>nFieldsInJoinFactor</h4> |
| <pre>int[] nFieldsInJoinFactor</pre> |
| <div class="block">Number of fields in each join factor</div> |
| </li> |
| </ul> |
| <a name="factorsRefByFactor"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>factorsRefByFactor</h4> |
| <pre><a href="../../../../../org/apache/calcite/util/ImmutableBitSet.html" title="class in org.apache.calcite.util">ImmutableBitSet</a>[] factorsRefByFactor</pre> |
| <div class="block">Bitmap indicating which factors each factor references in join filters |
| that correspond to comparisons</div> |
| </li> |
| </ul> |
| <a name="factorWeights"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>factorWeights</h4> |
| <pre>int[][] factorWeights</pre> |
| <div class="block">Weights of each factor combination</div> |
| </li> |
| </ul> |
| <a name="factory"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>factory</h4> |
| <pre>final <a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactory.html" title="interface in org.apache.calcite.rel.type">RelDataTypeFactory</a> factory</pre> |
| <div class="block">Type factory</div> |
| </li> |
| </ul> |
| <a name="joinRemovalFactors"> |
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| <ul class="blockList"> |
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| <h4>joinRemovalFactors</h4> |
| <pre><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>[] joinRemovalFactors</pre> |
| <div class="block">Indicates for each factor whether its join can be removed because it is |
| the dimension table in a semijoin. If it can be, the entry indicates the |
| factor id of the fact table (corresponding to the dimension table) in the |
| semijoin that allows the factor to be removed. If the factor cannot be |
| removed, the entry corresponding to the factor is null.</div> |
| </li> |
| </ul> |
| <a name="joinRemovalSemiJoins"> |
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| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>joinRemovalSemiJoins</h4> |
| <pre><a href="../../../../../org/apache/calcite/rel/core/SemiJoin.html" title="class in org.apache.calcite.rel.core">SemiJoin</a>[] joinRemovalSemiJoins</pre> |
| <div class="block">The semijoins that allow the join of a dimension table to be removed</div> |
| </li> |
| </ul> |
| <a name="removableOuterJoinFactors"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>removableOuterJoinFactors</h4> |
| <pre><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a><<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>> removableOuterJoinFactors</pre> |
| <div class="block">Set of null-generating factors whose corresponding outer join can be |
| removed from the query plan</div> |
| </li> |
| </ul> |
| <a name="removableSelfJoinPairs"> |
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| <ul class="blockListLast"> |
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| <h4>removableSelfJoinPairs</h4> |
| <pre><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<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>,<a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.RemovableSelfJoin.html" title="class in org.apache.calcite.rel.rules">LoptMultiJoin.RemovableSelfJoin</a>> removableSelfJoinPairs</pre> |
| <div class="block">Map consisting of all pairs of self-joins where the self-join can be |
| removed because the join between the identical factors is an equality |
| join on the same set of unique keys. The map is keyed by either factor in |
| the self join.</div> |
| </li> |
| </ul> |
| </li> |
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| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
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| </a> |
| <h3>Constructor Detail</h3> |
| <a name="LoptMultiJoin-org.apache.calcite.rel.rules.MultiJoin-"> |
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| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <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> |
| </li> |
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| <h3>Method Detail</h3> |
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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> |
| </li> |
| </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> |
| </li> |
| </ul> |
| <a name="getJoinFactor-int-"> |
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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> |
| </dl> |
| </li> |
| </ul> |
| <a name="getNumTotalFields--"> |
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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> |
| </li> |
| </ul> |
| <a name="getNumFieldsInJoinFactor-int-"> |
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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> |
| </dl> |
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| </ul> |
| <a name="getJoinFilters--"> |
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| </a> |
| <ul class="blockList"> |
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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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| </a> |
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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> |
| </li> |
| </ul> |
| <a name="getMultiJoinFields--"> |
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| </a> |
| <ul class="blockList"> |
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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> |
| </li> |
| </ul> |
| <a name="getFieldsRefByJoinFilter-org.apache.calcite.rex.RexNode-"> |
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| </a> |
| <ul class="blockList"> |
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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> |
| </li> |
| </ul> |
| <a name="getFactorWeights--"> |
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| </a> |
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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> |
| </li> |
| </ul> |
| <a name="getFactorsRefByFactor-int-"> |
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| </a> |
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| <h4>getFactorsRefByFactor</h4> |
| <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> |
| </dl> |
| </li> |
| </ul> |
| <a name="getJoinStart-int-"> |
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| </a> |
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| <h4>getJoinStart</h4> |
| <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> |
| </dl> |
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| </a> |
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| <h4>isNullGenerating</h4> |
| <pre>public boolean isNullGenerating(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>whether or not the factor corresponds to a null-generating factor |
| in a left or right outer join</dd> |
| </dl> |
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| <h4>getOuterJoinFactors</h4> |
| <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> |
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| <h4>getOuterJoinCond</h4> |
| <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> |
| </dl> |
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| <a name="getProjFields-int-"> |
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| <h4>getProjFields</h4> |
| <pre>public <a href="../../../../../org/apache/calcite/util/ImmutableBitSet.html" title="class in org.apache.calcite.util">ImmutableBitSet</a> getProjFields(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 fields that are projected from a factor</dd> |
| </dl> |
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| <h4>getJoinFieldRefCounts</h4> |
| <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> |
| </dl> |
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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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| </ul> |
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| <h4>getJoinRemovalSemiJoin</h4> |
| <pre>public <a href="../../../../../org/apache/calcite/rel/core/SemiJoin.html" title="class in org.apache.calcite.rel.core">SemiJoin</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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| </ul> |
| <a name="setJoinRemovalFactor-int-int-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <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/core/SemiJoin.html" title="class in org.apache.calcite.rel.core">SemiJoin</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> |
| </ul> |
| <a name="getJoinFilterFactorBitmap-org.apache.calcite.rex.RexNode-boolean-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
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| <h4>getJoinFilterFactorBitmap</h4> |
| <pre><a href="../../../../../org/apache/calcite/util/ImmutableBitSet.html" title="class in org.apache.calcite.util">ImmutableBitSet</a> getJoinFilterFactorBitmap(<a href="../../../../../org/apache/calcite/rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> joinFilter, |
| boolean setFields)</pre> |
| <div class="block">Returns a bitmap representing the factors referenced in a join filter</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>joinFilter</code> - the join filter</dd> |
| <dd><code>setFields</code> - if true, add the fields referenced by the join filter |
| into a map</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the bitmap containing the factor references</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="fieldBitmap-org.apache.calcite.rex.RexNode-"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>fieldBitmap</h4> |
| <pre>private <a href="../../../../../org/apache/calcite/util/ImmutableBitSet.html" title="class in org.apache.calcite.util">ImmutableBitSet</a> fieldBitmap(<a href="../../../../../org/apache/calcite/rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> joinFilter)</pre> |
| </li> |
| </ul> |
| <a name="setJoinFilterRefs--"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>setJoinFilterRefs</h4> |
| <pre>private void setJoinFilterRefs()</pre> |
| <div class="block">Sets bitmaps indicating which factors and fields each join filter |
| references</div> |
| </li> |
| </ul> |
| <a name="factorBitmap-org.apache.calcite.util.ImmutableBitSet-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>factorBitmap</h4> |
| <pre>private <a href="../../../../../org/apache/calcite/util/ImmutableBitSet.html" title="class in org.apache.calcite.util">ImmutableBitSet</a> factorBitmap(<a href="../../../../../org/apache/calcite/util/ImmutableBitSet.html" title="class in org.apache.calcite.util">ImmutableBitSet</a> fieldRefBitmap)</pre> |
| <div class="block">Sets the bitmap indicating which factors a filter references based on |
| which fields it references</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>fieldRefBitmap</code> - bitmap representing fields referenced</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>bitmap representing factors referenced that will |
| be set by this method</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="findRef-int-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <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> |
| </li> |
| </ul> |
| <a name="setFactorWeights--"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <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> |
| </ul> |
| <a name="setFactorWeight-int-int-int-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>setFactorWeight</h4> |
| <pre>private void setFactorWeight(int weight, |
| int leftFactor, |
| int rightFactor)</pre> |
| <div class="block">Sets an individual weight if the new weight is better than the current |
| one</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>weight</code> - weight to be set</dd> |
| <dd><code>leftFactor</code> - index of left factor</dd> |
| <dd><code>rightFactor</code> - index of right factor</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="hasAllFactors-org.apache.calcite.rel.rules.LoptJoinTree-java.util.BitSet-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <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> |
| </li> |
| </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> |
| <a name="getJoinFields-org.apache.calcite.rel.rules.LoptJoinTree-org.apache.calcite.rel.rules.LoptJoinTree-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <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> |
| <a name="addRemovableOuterJoinFactor-int-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <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> |
| </li> |
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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> |
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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> |
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| <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> |
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| <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> |
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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> |
| </li> |
| </ul> |
| <a name="createEdge-org.apache.calcite.rex.RexNode-"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>createEdge</h4> |
| <pre>public <a href="../../../../../org/apache/calcite/rel/rules/LoptMultiJoin.Edge.html" title="class in org.apache.calcite.rel.rules">LoptMultiJoin.Edge</a> createEdge(<a href="../../../../../org/apache/calcite/rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> condition)</pre> |
| </li> |
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