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| <h1 title="Package" class="title">Package org.apache.calcite.sql2rel</h1> |
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| <div class="block">Translates a SQL parse tree to relational expression.</div> |
| </section> |
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| <table class="typeSummary"> |
| <caption><span>Interface Summary</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Interface</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tbody> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="AuxiliaryConverter.html" title="interface in org.apache.calcite.sql2rel">AuxiliaryConverter</a></th> |
| <td class="colLast"> |
| <div class="block">Converts an expression for a group window function (e.g.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="InitializerContext.html" title="interface in org.apache.calcite.sql2rel">InitializerContext</a></th> |
| <td class="colLast"> |
| <div class="block">Provides context for <a href="InitializerExpressionFactory.html" title="interface in org.apache.calcite.sql2rel"><code>InitializerExpressionFactory</code></a> methods.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="InitializerExpressionFactory.html" title="interface in org.apache.calcite.sql2rel">InitializerExpressionFactory</a></th> |
| <td class="colLast"> |
| <div class="block">InitializerExpressionFactory supplies default values for INSERT, UPDATE, and NEW.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="RelStructuredTypeFlattener.SelfFlatteningRel.html" title="interface in org.apache.calcite.sql2rel">RelStructuredTypeFlattener.SelfFlatteningRel</a></th> |
| <td class="colLast"> |
| <div class="block">Mix-in interface for relational expressions that know how to |
| flatten themselves.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="SqlNodeToRexConverter.html" title="interface in org.apache.calcite.sql2rel">SqlNodeToRexConverter</a></th> |
| <td class="colLast"> |
| <div class="block">Converts expressions from <a href="../sql/SqlNode.html" title="class in org.apache.calcite.sql"><code>SqlNode</code></a> to <a href="../rex/RexNode.html" title="class in org.apache.calcite.rex"><code>RexNode</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="SqlRexContext.html" title="interface in org.apache.calcite.sql2rel">SqlRexContext</a></th> |
| <td class="colLast"> |
| <div class="block">Contains the context necessary for a <a href="SqlRexConvertlet.html" title="interface in org.apache.calcite.sql2rel"><code>SqlRexConvertlet</code></a> to convert a |
| <a href="../sql/SqlNode.html" title="class in org.apache.calcite.sql"><code>SqlNode</code></a> expression into a <a href="../rex/RexNode.html" title="class in org.apache.calcite.rex"><code>RexNode</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="SqlRexConvertlet.html" title="interface in org.apache.calcite.sql2rel">SqlRexConvertlet</a></th> |
| <td class="colLast"> |
| <div class="block">Thunk which converts a <a href="../sql/SqlNode.html" title="class in org.apache.calcite.sql"><code>SqlNode</code></a> expression into a <a href="../rex/RexNode.html" title="class in org.apache.calcite.rex"><code>RexNode</code></a> |
| expression.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="SqlRexConvertletTable.html" title="interface in org.apache.calcite.sql2rel">SqlRexConvertletTable</a></th> |
| <td class="colLast"> |
| <div class="block">Collection of <a href="SqlRexConvertlet.html" title="interface in org.apache.calcite.sql2rel"><code>SqlRexConvertlet</code></a>s.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="SqlToRelConverter.Config.html" title="interface in org.apache.calcite.sql2rel">SqlToRelConverter.Config</a></th> |
| <td class="colLast"> |
| <div class="block">Interface to define the configuration for a SqlToRelConverter.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="SubQueryConverter.html" title="interface in org.apache.calcite.sql2rel">SubQueryConverter</a></th> |
| <td class="colLast"> |
| <div class="block">SubQueryConverter provides the interface for classes that convert sub-queries |
| into equivalent expressions.</div> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| </li> |
| <li class="blockList"> |
| <table class="typeSummary"> |
| <caption><span>Class Summary</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Class</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tbody> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="AuxiliaryConverter.Impl.html" title="class in org.apache.calcite.sql2rel">AuxiliaryConverter.Impl</a></th> |
| <td class="colLast"> |
| <div class="block">Simple implementation of <a href="AuxiliaryConverter.html" title="interface in org.apache.calcite.sql2rel"><code>AuxiliaryConverter</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="CorrelationReferenceFinder.html" title="class in org.apache.calcite.sql2rel">CorrelationReferenceFinder</a></th> |
| <td class="colLast"> |
| <div class="block">Shuttle that finds references to a given <a href="../rel/core/CorrelationId.html" title="class in org.apache.calcite.rel.core"><code>CorrelationId</code></a> within a tree |
| of <a href="../rel/RelNode.html" title="interface in org.apache.calcite.rel"><code>RelNode</code></a>s.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="CorrelationReferenceFinder.MyRexVisitor.html" title="class in org.apache.calcite.sql2rel">CorrelationReferenceFinder.MyRexVisitor</a></th> |
| <td class="colLast"> |
| <div class="block">Replaces alternative names of correlation variable to its canonical name.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="DeduplicateCorrelateVariables.html" title="class in org.apache.calcite.sql2rel">DeduplicateCorrelateVariables</a></th> |
| <td class="colLast"> |
| <div class="block">Rewrites relations to ensure the same correlation is referenced by the same |
| correlation variable.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="DeduplicateCorrelateVariables.DeduplicateCorrelateVariablesShuttle.html" title="class in org.apache.calcite.sql2rel">DeduplicateCorrelateVariables.DeduplicateCorrelateVariablesShuttle</a></th> |
| <td class="colLast"> |
| <div class="block">Replaces alternative names of correlation variable to its canonical name.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="NullInitializerExpressionFactory.html" title="class in org.apache.calcite.sql2rel">NullInitializerExpressionFactory</a></th> |
| <td class="colLast"> |
| <div class="block">An implementation of <a href="InitializerExpressionFactory.html" title="interface in org.apache.calcite.sql2rel"><code>InitializerExpressionFactory</code></a> that always supplies NULL.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="ReflectiveConvertletTable.html" title="class in org.apache.calcite.sql2rel">ReflectiveConvertletTable</a></th> |
| <td class="colLast"> |
| <div class="block">Implementation of <a href="SqlRexConvertletTable.html" title="interface in org.apache.calcite.sql2rel"><code>SqlRexConvertletTable</code></a> which uses reflection to call |
| any method of the form <code>public RexNode convertXxx(ConvertletContext, |
| SqlNode)</code> or <code>public RexNode convertXxx(ConvertletContext, |
| SqlOperator, SqlCall)</code>.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="RelDecorrelator.html" title="class in org.apache.calcite.sql2rel">RelDecorrelator</a></th> |
| <td class="colLast"> |
| <div class="block">RelDecorrelator replaces all correlated expressions (corExp) in a relational |
| expression (RelNode) tree with non-correlated expressions that are produced |
| from joining the RelNode that produces the corExp with the RelNode that |
| references it.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="RelDecorrelator.CorDef.html" title="class in org.apache.calcite.sql2rel">RelDecorrelator.CorDef</a></th> |
| <td class="colLast"> |
| <div class="block">A correlation and a field.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="RelDecorrelator.CorelMap.html" title="class in org.apache.calcite.sql2rel">RelDecorrelator.CorelMap</a></th> |
| <td class="colLast"> |
| <div class="block">A map of the locations of |
| <a href="../rel/core/Correlate.html" title="class in org.apache.calcite.rel.core"><code>Correlate</code></a> |
| in a tree of <a href="../rel/RelNode.html" title="interface in org.apache.calcite.rel"><code>RelNode</code></a>s.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="RelDecorrelator.CorelMapBuilder.html" title="class in org.apache.calcite.sql2rel">RelDecorrelator.CorelMapBuilder</a></th> |
| <td class="colLast"> |
| <div class="block">Builds a <a href="RelDecorrelator.CorelMap.html" title="class in org.apache.calcite.sql2rel"><code>RelDecorrelator.CorelMap</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="RelDecorrelator.CorRef.html" title="class in org.apache.calcite.sql2rel">RelDecorrelator.CorRef</a></th> |
| <td class="colLast"> |
| <div class="block">A unique reference to a correlation field.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="RelDecorrelator.DecorrelateRexShuttle.html" title="class in org.apache.calcite.sql2rel">RelDecorrelator.DecorrelateRexShuttle</a></th> |
| <td class="colLast"> |
| <div class="block">Shuttle that decorrelates.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="RelDecorrelator.Frame.html" title="class in org.apache.calcite.sql2rel">RelDecorrelator.Frame</a></th> |
| <td class="colLast"> |
| <div class="block">Frame describing the relational expression after decorrelation |
| and where to find the output fields and correlation variables |
| among its output fields.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="RelFieldTrimmer.html" title="class in org.apache.calcite.sql2rel">RelFieldTrimmer</a></th> |
| <td class="colLast"> |
| <div class="block">Transformer that walks over a tree of relational expressions, replacing each |
| <a href="../rel/RelNode.html" title="interface in org.apache.calcite.rel"><code>RelNode</code></a> with a 'slimmed down' relational expression that projects |
| only the columns required by its consumer.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="RelFieldTrimmer.TrimResult.html" title="class in org.apache.calcite.sql2rel">RelFieldTrimmer.TrimResult</a></th> |
| <td class="colLast"> |
| <div class="block">Result of an attempt to trim columns from a relational expression.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="RelStructuredTypeFlattener.html" title="class in org.apache.calcite.sql2rel">RelStructuredTypeFlattener</a></th> |
| <td class="colLast"> |
| <div class="block">RelStructuredTypeFlattener removes all structured types from a tree of |
| relational expressions.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="SqlNodeToRexConverterImpl.html" title="class in org.apache.calcite.sql2rel">SqlNodeToRexConverterImpl</a></th> |
| <td class="colLast"> |
| <div class="block">Standard implementation of <a href="SqlNodeToRexConverter.html" title="interface in org.apache.calcite.sql2rel"><code>SqlNodeToRexConverter</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="SqlToRelConverter.html" title="class in org.apache.calcite.sql2rel">SqlToRelConverter</a></th> |
| <td class="colLast"> |
| <div class="block">Converts a SQL parse tree (consisting of |
| <a href="../sql/SqlNode.html" title="class in org.apache.calcite.sql"><code>SqlNode</code></a> objects) into a relational algebra |
| expression (consisting of <a href="../rel/RelNode.html" title="interface in org.apache.calcite.rel"><code>RelNode</code></a> objects).</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="SqlToRelConverter.AggregateFinder.html" title="class in org.apache.calcite.sql2rel">SqlToRelConverter.AggregateFinder</a></th> |
| <td class="colLast"> |
| <div class="block">Visitor that collects all aggregate functions in a <a href="../sql/SqlNode.html" title="class in org.apache.calcite.sql"><code>SqlNode</code></a> tree.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="SqlToRelConverter.ConfigBuilder.html" title="class in org.apache.calcite.sql2rel">SqlToRelConverter.ConfigBuilder</a></th> |
| <td class="colLast"> |
| <div class="block">Builder for a <a href="SqlToRelConverter.Config.html" title="interface in org.apache.calcite.sql2rel"><code>SqlToRelConverter.Config</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="SqlToRelConverter.ConfigImpl.html" title="class in org.apache.calcite.sql2rel">SqlToRelConverter.ConfigImpl</a></th> |
| <td class="colLast"> |
| <div class="block">Implementation of <a href="SqlToRelConverter.Config.html" title="interface in org.apache.calcite.sql2rel"><code>SqlToRelConverter.Config</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="SqlToRelConverter.CorrelationUse.html" title="class in org.apache.calcite.sql2rel">SqlToRelConverter.CorrelationUse</a></th> |
| <td class="colLast"> |
| <div class="block">Use of a row as a correlating variable by a given relational |
| expression.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="SqlToRelConverter.DeferredLookup.html" title="class in org.apache.calcite.sql2rel">SqlToRelConverter.DeferredLookup</a></th> |
| <td class="colLast"> |
| <div class="block">Deferred lookup.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="SqlToRelConverter.LookupContext.html" title="class in org.apache.calcite.sql2rel">SqlToRelConverter.LookupContext</a></th> |
| <td class="colLast"> |
| <div class="block">Context to find a relational expression to a field offset.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="SqlToRelConverter.RexAccessShuttle.html" title="class in org.apache.calcite.sql2rel">SqlToRelConverter.RexAccessShuttle</a></th> |
| <td class="colLast"> |
| <div class="block">Shuttle that replace outer <a href="../rex/RexInputRef.html" title="class in org.apache.calcite.rex"><code>RexInputRef</code></a> with |
| <a href="../rex/RexFieldAccess.html" title="class in org.apache.calcite.rex"><code>RexFieldAccess</code></a>, and adjust <code>offset</code> to |
| each inner <a href="../rex/RexInputRef.html" title="class in org.apache.calcite.rex"><code>RexInputRef</code></a> in the lateral join |
| condition.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="SqlToRelConverter.SubQuery.html" title="class in org.apache.calcite.sql2rel">SqlToRelConverter.SubQuery</a></th> |
| <td class="colLast"> |
| <div class="block">A sub-query, whether it needs to be translated using 2- or 3-valued |
| logic.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="StandardConvertletTable.html" title="class in org.apache.calcite.sql2rel">StandardConvertletTable</a></th> |
| <td class="colLast"> |
| <div class="block">Standard implementation of <a href="SqlRexConvertletTable.html" title="interface in org.apache.calcite.sql2rel"><code>SqlRexConvertletTable</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="StandardConvertletTable.AvgVarianceConvertlet.html" title="class in org.apache.calcite.sql2rel">StandardConvertletTable.AvgVarianceConvertlet</a></th> |
| <td class="colLast"> |
| <div class="block">Convertlet that handles <code>AVG</code> and <code>VARIANCE</code> |
| windowed aggregate functions.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="StandardConvertletTable.GreatestConvertlet.html" title="class in org.apache.calcite.sql2rel">StandardConvertletTable.GreatestConvertlet</a></th> |
| <td class="colLast"> |
| <div class="block">Convertlet that converts <code>GREATEST</code> and <code>LEAST</code>.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="StandardConvertletTable.RegrCovarianceConvertlet.html" title="class in org.apache.calcite.sql2rel">StandardConvertletTable.RegrCovarianceConvertlet</a></th> |
| <td class="colLast"> |
| <div class="block">Convertlet that handles <code>COVAR_POP</code>, <code>COVAR_SAMP</code>, |
| <code>REGR_SXX</code>, <code>REGR_SYY</code> windowed aggregate functions.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="StandardConvertletTable.TimestampAddConvertlet.html" title="class in org.apache.calcite.sql2rel">StandardConvertletTable.TimestampAddConvertlet</a></th> |
| <td class="colLast"> |
| <div class="block">Convertlet that handles the <code>TIMESTAMPADD</code> function.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="StandardConvertletTable.TimestampDiffConvertlet.html" title="class in org.apache.calcite.sql2rel">StandardConvertletTable.TimestampDiffConvertlet</a></th> |
| <td class="colLast"> |
| <div class="block">Convertlet that handles the <code>TIMESTAMPDIFF</code> function.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="StandardConvertletTable.TrimConvertlet.html" title="class in org.apache.calcite.sql2rel">StandardConvertletTable.TrimConvertlet</a></th> |
| <td class="colLast"> |
| <div class="block">Convertlet that converts <code>LTRIM</code> and <code>RTRIM</code> to |
| <code>TRIM</code>.</div> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| </li> |
| </ul> |
| </div> |
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