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| <div class="subTitle">org.apache.drill.exec.planner.common</div> |
| <h2 title="Class DrillRelOptUtil" class="title">Class DrillRelOptUtil</h2> |
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| <li>org.apache.drill.exec.planner.common.DrillRelOptUtil</li> |
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| <pre>public abstract class <span class="typeNameLabel">DrillRelOptUtil</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 is a subset of the RelOptUtil class and is a placeholder |
| for Drill specific static methods that are needed during either logical or |
| physical planning.</div> |
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| <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>static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillRelOptUtil.InputRefVisitor.html" title="class in org.apache.drill.exec.planner.common">DrillRelOptUtil.InputRefVisitor</a></span></code> |
| <div class="block">InputRefVisitor is a utility class used to collect all the RexInputRef nodes in a |
| RexNode.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillRelOptUtil.ProjectPushInfo.html" title="class in org.apache.drill.exec.planner.common">DrillRelOptUtil.ProjectPushInfo</a></span></code> |
| <div class="block">Stores information about fields, their names and types.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillRelOptUtil.RexFieldsTransformer.html" title="class in org.apache.drill.exec.planner.common">DrillRelOptUtil.RexFieldsTransformer</a></span></code> |
| <div class="block">RexFieldsTransformer is a utility class used to convert column refs in a RexNode |
| based on inputRefMap (input to output ref map).</div> |
| </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
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| <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillRelOptUtil.html#IMPLICIT_COLUMN">IMPLICIT_COLUMN</a></span></code> </td> |
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| <tr> |
| <th class="colOne" scope="col">Constructor and Description</th> |
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| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillRelOptUtil.html#DrillRelOptUtil--">DrillRelOptUtil</a></span>()</code> </td> |
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| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Method and Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>static <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><org.apache.calcite.util.Pair<<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="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/drill/exec/planner/common/DrillRelOptUtil.html#analyzeSimpleEquiJoin-org.apache.calcite.rel.core.Join-">analyzeSimpleEquiJoin</a></span>(org.apache.calcite.rel.core.Join join)</code> </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillRelOptUtil.html#analyzeSimpleEquiJoin-org.apache.calcite.rel.core.Join-int:A-">analyzeSimpleEquiJoin</a></span>(org.apache.calcite.rel.core.Join join, |
| int[] joinFieldOrdinals)</code> |
| <div class="block">Returns whether the join condition is a simple equi-join or not.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillRelOptUtil.html#areRowTypesCompatible-org.apache.calcite.rel.type.RelDataType-org.apache.calcite.rel.type.RelDataType-boolean-boolean-">areRowTypesCompatible</a></span>(org.apache.calcite.rel.type.RelDataType rowType1, |
| org.apache.calcite.rel.type.RelDataType rowType2, |
| boolean compareNames, |
| boolean allowSubstring)</code> </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>static org.apache.calcite.rel.RelNode</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillRelOptUtil.html#createRename-org.apache.calcite.rel.RelNode-java.util.List-">createRename</a></span>(org.apache.calcite.rel.RelNode rel, |
| <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="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>> fieldNames)</code> |
| <div class="block">Returns a relational expression which has the same fields as the |
| underlying expression, but the fields have different names.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>static <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><org.apache.calcite.rex.RexInputRef></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillRelOptUtil.html#findAllRexInputRefs-org.apache.calcite.rex.RexNode-">findAllRexInputRefs</a></span>(org.apache.calcite.rex.RexNode node)</code> </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>static org.apache.calcite.rex.RexCall</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillRelOptUtil.html#findOperators-org.apache.calcite.rex.RexNode-java.util.List-java.util.Collection-">findOperators</a></span>(org.apache.calcite.rex.RexNode node, |
| <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><org.apache.calcite.rex.RexNode> projExprs, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>> operators)</code> |
| <div class="block">Travesal RexNode to find at least one operator in the given collection.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>static org.apache.calcite.rel.core.TableScan</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillRelOptUtil.html#findScan-org.apache.calcite.rel.RelNode...-">findScan</a></span>(org.apache.calcite.rel.RelNode... rels)</code> </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>static <a href="../../../../../../org/apache/drill/exec/planner/logical/DrillTable.html" title="class in org.apache.drill.exec.planner.logical">DrillTable</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillRelOptUtil.html#getDrillTable-org.apache.calcite.rel.core.TableScan-">getDrillTable</a></span>(org.apache.calcite.rel.core.TableScan scan)</code> </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>static <a href="../../../../../../org/apache/drill/exec/planner/common/DrillRelOptUtil.ProjectPushInfo.html" title="class in org.apache.drill.exec.planner.common">DrillRelOptUtil.ProjectPushInfo</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillRelOptUtil.html#getFieldsInformation-org.apache.calcite.rel.type.RelDataType-java.util.List-">getFieldsInformation</a></span>(org.apache.calcite.rel.type.RelDataType rowType, |
| <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><org.apache.calcite.rex.RexNode> projects)</code> </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillRelOptUtil.html#guessRows-org.apache.calcite.rel.RelNode-">guessRows</a></span>(org.apache.calcite.rel.RelNode rel)</code> |
| <div class="block">Returns whether statistics-based estimates or guesses are used by the optimizer |
| for the <code>RelNode</code> rel.</div> |
| </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillRelOptUtil.html#isLimit0-org.apache.calcite.rex.RexNode-">isLimit0</a></span>(org.apache.calcite.rex.RexNode fetch)</code> </td> |
| </tr> |
| <tr id="i11" class="rowColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillRelOptUtil.html#isProjectFlatten-org.apache.calcite.rel.RelNode-">isProjectFlatten</a></span>(org.apache.calcite.rel.RelNode project)</code> </td> |
| </tr> |
| <tr id="i12" class="altColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillRelOptUtil.html#isProjectOutputRowcountUnknown-org.apache.calcite.rel.core.Project-">isProjectOutputRowcountUnknown</a></span>(org.apache.calcite.rel.core.Project project)</code> |
| <div class="block">Find whether the given project rel can produce non-scalar output (hence unknown rowcount).</div> |
| </td> |
| </tr> |
| <tr id="i13" class="rowColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillRelOptUtil.html#isProjectOutputSchemaUnknown-org.apache.calcite.rel.core.Project-">isProjectOutputSchemaUnknown</a></span>(org.apache.calcite.rel.core.Project project)</code> |
| <div class="block">Find whether the given project rel has unknown output schema.</div> |
| </td> |
| </tr> |
| <tr id="i14" class="altColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillRelOptUtil.html#isTrivialProject-org.apache.calcite.rel.core.Project-boolean-">isTrivialProject</a></span>(org.apache.calcite.rel.core.Project project, |
| boolean useNamesInIdentityProjCalc)</code> </td> |
| </tr> |
| <tr id="i15" class="rowColor"> |
| <td class="colFirst"><code>static <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="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/drill/exec/planner/common/DrillRelOptUtil.html#rightShiftColsInRowType-org.apache.calcite.rel.type.RelDataType-">rightShiftColsInRowType</a></span>(org.apache.calcite.rel.type.RelDataType rowType)</code> |
| <div class="block">For a given row type return a map between old field indices and one index right shifted fields.</div> |
| </td> |
| </tr> |
| <tr id="i16" class="altColor"> |
| <td class="colFirst"><code>static org.apache.calcite.rex.RexNode</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillRelOptUtil.html#transformExpr-org.apache.calcite.rex.RexBuilder-org.apache.calcite.rex.RexNode-java.util.Map-">transformExpr</a></span>(org.apache.calcite.rex.RexBuilder builder, |
| org.apache.calcite.rex.RexNode expr, |
| <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="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>> corrMap)</code> |
| <div class="block">Given a of rexnode it transforms the rexnode by changing the expr to use new index mapped to the old index.</div> |
| </td> |
| </tr> |
| <tr id="i17" class="rowColor"> |
| <td class="colFirst"><code>static <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><org.apache.calcite.rex.RexNode></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillRelOptUtil.html#transformExprs-org.apache.calcite.rex.RexBuilder-java.util.List-java.util.Map-">transformExprs</a></span>(org.apache.calcite.rex.RexBuilder builder, |
| <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><org.apache.calcite.rex.RexNode> exprs, |
| <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="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>> corrMap)</code> |
| <div class="block">Given a list of rexnodes it transforms the rexnodes by changing the expr to use new index mapped to the old index.</div> |
| </td> |
| </tr> |
| <tr id="i18" class="altColor"> |
| <td class="colFirst"><code>static org.apache.calcite.rel.type.RelDataType</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/drill/exec/planner/common/DrillRelOptUtil.html#uniqifyFieldName-org.apache.calcite.rel.type.RelDataType-org.apache.calcite.rel.type.RelDataTypeFactory-">uniqifyFieldName</a></span>(org.apache.calcite.rel.type.RelDataType rowType, |
| org.apache.calcite.rel.type.RelDataTypeFactory typeFactory)</code> |
| <div class="block">Returns a rowType having all unique field name.</div> |
| </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a name="methods.inherited.from.class.java.lang.Object"> |
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| </a> |
| <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> |
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| </ul> |
| </div> |
| <div class="details"> |
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| <!-- ============ FIELD DETAIL =========== --> |
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| <li class="blockList"><a name="field.detail"> |
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| <h3>Field Detail</h3> |
| <a name="IMPLICIT_COLUMN"> |
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| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>IMPLICIT_COLUMN</h4> |
| <pre>public static final <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> IMPLICIT_COLUMN</pre> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../constant-values.html#org.apache.drill.exec.planner.common.DrillRelOptUtil.IMPLICIT_COLUMN">Constant Field Values</a></dd> |
| </dl> |
| </li> |
| </ul> |
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| <h3>Constructor Detail</h3> |
| <a name="DrillRelOptUtil--"> |
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| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>DrillRelOptUtil</h4> |
| <pre>public DrillRelOptUtil()</pre> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| <!-- ============ METHOD DETAIL ========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="method.detail"> |
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| </a> |
| <h3>Method Detail</h3> |
| <a name="areRowTypesCompatible-org.apache.calcite.rel.type.RelDataType-org.apache.calcite.rel.type.RelDataType-boolean-boolean-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>areRowTypesCompatible</h4> |
| <pre>public static boolean areRowTypesCompatible(org.apache.calcite.rel.type.RelDataType rowType1, |
| org.apache.calcite.rel.type.RelDataType rowType2, |
| boolean compareNames, |
| boolean allowSubstring)</pre> |
| </li> |
| </ul> |
| <a name="createRename-org.apache.calcite.rel.RelNode-java.util.List-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>createRename</h4> |
| <pre>public static org.apache.calcite.rel.RelNode createRename(org.apache.calcite.rel.RelNode rel, |
| <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="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>> fieldNames)</pre> |
| <div class="block">Returns a relational expression which has the same fields as the |
| underlying expression, but the fields have different names.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>rel</code> - Relational expression</dd> |
| <dd><code>fieldNames</code> - Field names</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Renamed relational expression</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="isTrivialProject-org.apache.calcite.rel.core.Project-boolean-"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>isTrivialProject</h4> |
| <pre>public static boolean isTrivialProject(org.apache.calcite.rel.core.Project project, |
| boolean useNamesInIdentityProjCalc)</pre> |
| </li> |
| </ul> |
| <a name="uniqifyFieldName-org.apache.calcite.rel.type.RelDataType-org.apache.calcite.rel.type.RelDataTypeFactory-"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>uniqifyFieldName</h4> |
| <pre>public static org.apache.calcite.rel.type.RelDataType uniqifyFieldName(org.apache.calcite.rel.type.RelDataType rowType, |
| org.apache.calcite.rel.type.RelDataTypeFactory typeFactory)</pre> |
| <div class="block">Returns a rowType having all unique field name.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>rowType</code> - input rowType</dd> |
| <dd><code>typeFactory</code> - type factory used to create a new row type.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a rowType having all unique field name.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="findOperators-org.apache.calcite.rex.RexNode-java.util.List-java.util.Collection-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>findOperators</h4> |
| <pre>public static org.apache.calcite.rex.RexCall findOperators(org.apache.calcite.rex.RexNode node, |
| <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><org.apache.calcite.rex.RexNode> projExprs, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a><<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>> operators)</pre> |
| <div class="block">Travesal RexNode to find at least one operator in the given collection. Continue search if RexNode has a |
| RexInputRef which refers to a RexNode in project expressions.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>node</code> - RexNode to search</dd> |
| <dd><code>projExprs</code> - the list of project expressions. Empty list means there is No project operator underneath.</dd> |
| <dd><code>operators</code> - collection of operators to find</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Return null if there is NONE; return the first appearance of item/flatten RexCall.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="isLimit0-org.apache.calcite.rex.RexNode-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>isLimit0</h4> |
| <pre>public static boolean isLimit0(org.apache.calcite.rex.RexNode fetch)</pre> |
| </li> |
| </ul> |
| <a name="isProjectOutputRowcountUnknown-org.apache.calcite.rel.core.Project-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>isProjectOutputRowcountUnknown</h4> |
| <pre>public static boolean isProjectOutputRowcountUnknown(org.apache.calcite.rel.core.Project project)</pre> |
| <div class="block">Find whether the given project rel can produce non-scalar output (hence unknown rowcount). This |
| would happen if the project has a flatten</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>project</code> - The project rel</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Return true if the rowcount is unknown. Otherwise, false.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="isProjectOutputSchemaUnknown-org.apache.calcite.rel.core.Project-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>isProjectOutputSchemaUnknown</h4> |
| <pre>public static boolean isProjectOutputSchemaUnknown(org.apache.calcite.rel.core.Project project)</pre> |
| <div class="block">Find whether the given project rel has unknown output schema. This would happen if the |
| project has CONVERT_FROMJSON which can only derive the schema after evaluation is performed</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>project</code> - The project rel</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Return true if the project output schema is unknown. Otherwise, false.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="findScan-org.apache.calcite.rel.RelNode...-"> |
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| </a> |
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| <h4>findScan</h4> |
| <pre>public static org.apache.calcite.rel.core.TableScan findScan(org.apache.calcite.rel.RelNode... rels)</pre> |
| </li> |
| </ul> |
| <a name="rightShiftColsInRowType-org.apache.calcite.rel.type.RelDataType-"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>rightShiftColsInRowType</h4> |
| <pre>public static <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="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>> rightShiftColsInRowType(org.apache.calcite.rel.type.RelDataType rowType)</pre> |
| <div class="block">For a given row type return a map between old field indices and one index right shifted fields.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>rowType</code> - row type to be right shifted.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>map hash map between old and new indices</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="transformExprs-org.apache.calcite.rex.RexBuilder-java.util.List-java.util.Map-"> |
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| <h4>transformExprs</h4> |
| <pre>public static <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><org.apache.calcite.rex.RexNode> transformExprs(org.apache.calcite.rex.RexBuilder builder, |
| <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><org.apache.calcite.rex.RexNode> exprs, |
| <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="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>> corrMap)</pre> |
| <div class="block">Given a list of rexnodes it transforms the rexnodes by changing the expr to use new index mapped to the old index.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>builder</code> - RexBuilder from the planner.</dd> |
| <dd><code>exprs</code> - RexNodes to be transformed.</dd> |
| <dd><code>corrMap</code> - Mapping between old index to new index.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>list of transformed expressions</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="transformExpr-org.apache.calcite.rex.RexBuilder-org.apache.calcite.rex.RexNode-java.util.Map-"> |
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| </a> |
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| <h4>transformExpr</h4> |
| <pre>public static org.apache.calcite.rex.RexNode transformExpr(org.apache.calcite.rex.RexBuilder builder, |
| org.apache.calcite.rex.RexNode expr, |
| <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="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>> corrMap)</pre> |
| <div class="block">Given a of rexnode it transforms the rexnode by changing the expr to use new index mapped to the old index.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>builder</code> - RexBuilder from the planner.</dd> |
| <dd><code>expr</code> - RexNode to be transformed.</dd> |
| <dd><code>corrMap</code> - Mapping between old index to new index.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>transformed expression</dd> |
| </dl> |
| </li> |
| </ul> |
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| </a> |
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| <h4>isProjectFlatten</h4> |
| <pre>public static boolean isProjectFlatten(org.apache.calcite.rel.RelNode project)</pre> |
| </li> |
| </ul> |
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| </a> |
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| <h4>getFieldsInformation</h4> |
| <pre>public static <a href="../../../../../../org/apache/drill/exec/planner/common/DrillRelOptUtil.ProjectPushInfo.html" title="class in org.apache.drill.exec.planner.common">DrillRelOptUtil.ProjectPushInfo</a> getFieldsInformation(org.apache.calcite.rel.type.RelDataType rowType, |
| <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><org.apache.calcite.rex.RexNode> projects)</pre> |
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| <h4>guessRows</h4> |
| <pre>public static boolean guessRows(org.apache.calcite.rel.RelNode rel)</pre> |
| <div class="block">Returns whether statistics-based estimates or guesses are used by the optimizer |
| for the <code>RelNode</code> rel.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>rel</code> - input</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>TRUE if the estimate is a guess, FALSE otherwise</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="analyzeSimpleEquiJoin-org.apache.calcite.rel.core.Join-int:A-"> |
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| <li class="blockList"> |
| <h4>analyzeSimpleEquiJoin</h4> |
| <pre>public static boolean analyzeSimpleEquiJoin(org.apache.calcite.rel.core.Join join, |
| int[] joinFieldOrdinals)</pre> |
| <div class="block">Returns whether the join condition is a simple equi-join or not. A simple equi-join is |
| defined as an two-table equality join (no self-join)</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>join</code> - input join</dd> |
| <dd><code>joinFieldOrdinals</code> - join field ordinal w.r.t. the underlying inputs to the join</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>TRUE if the join is a simple equi-join (not a self-join), FALSE otherwise</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getDrillTable-org.apache.calcite.rel.core.TableScan-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getDrillTable</h4> |
| <pre>public static <a href="../../../../../../org/apache/drill/exec/planner/logical/DrillTable.html" title="class in org.apache.drill.exec.planner.logical">DrillTable</a> getDrillTable(org.apache.calcite.rel.core.TableScan scan)</pre> |
| </li> |
| </ul> |
| <a name="analyzeSimpleEquiJoin-org.apache.calcite.rel.core.Join-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>analyzeSimpleEquiJoin</h4> |
| <pre>public static <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><org.apache.calcite.util.Pair<<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="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>>> analyzeSimpleEquiJoin(org.apache.calcite.rel.core.Join join)</pre> |
| </li> |
| </ul> |
| <a name="findAllRexInputRefs-org.apache.calcite.rex.RexNode-"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>findAllRexInputRefs</h4> |
| <pre>public static <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><org.apache.calcite.rex.RexInputRef> findAllRexInputRefs(org.apache.calcite.rex.RexNode node)</pre> |
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