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| <h1 title="Package" class="title">Package org.apache.calcite.rel.core</h1> |
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| <div class="block">Defines core relational expressions. |
| |
| <h2>Related packages and classes</h2> |
| <ul> |
| |
| <li>Package <code> |
| <a href="../logical/package-summary.html">org.apache.calcite.rel.logical</a></code> |
| contains logical relational expressions |
| |
| <li>Package <code> |
| <a href="../package-summary.html">org.apache.calcite.rex</a></code> |
| defines the relational expression API |
| |
| </ul></div> |
| </section> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <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="RelFactories.AggregateFactory.html" title="interface in org.apache.calcite.rel.core">RelFactories.AggregateFactory</a></th> |
| <td class="colLast"> |
| <div class="block">Can create a <a href="../logical/LogicalAggregate.html" title="class in org.apache.calcite.rel.logical"><code>LogicalAggregate</code></a> of the appropriate type |
| for this rule's calling convention.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="RelFactories.CorrelateFactory.html" title="interface in org.apache.calcite.rel.core">RelFactories.CorrelateFactory</a></th> |
| <td class="colLast"> |
| <div class="block">Can create a correlate of the appropriate type for a rule's calling |
| convention.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="RelFactories.ExchangeFactory.html" title="interface in org.apache.calcite.rel.core">RelFactories.ExchangeFactory</a></th> |
| <td class="colLast"> |
| <div class="block">Can create a <a href="Exchange.html" title="class in org.apache.calcite.rel.core"><code>Exchange</code></a> |
| of the appropriate type for a rule's calling convention.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="RelFactories.FilterFactory.html" title="interface in org.apache.calcite.rel.core">RelFactories.FilterFactory</a></th> |
| <td class="colLast"> |
| <div class="block">Can create a <a href="Filter.html" title="class in org.apache.calcite.rel.core"><code>Filter</code></a> of the appropriate type |
| for this rule's calling convention.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="RelFactories.JoinFactory.html" title="interface in org.apache.calcite.rel.core">RelFactories.JoinFactory</a></th> |
| <td class="colLast"> |
| <div class="block">Can create a join of the appropriate type for a rule's calling convention.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="RelFactories.MatchFactory.html" title="interface in org.apache.calcite.rel.core">RelFactories.MatchFactory</a></th> |
| <td class="colLast"> |
| <div class="block">Can create a <a href="Match.html" title="class in org.apache.calcite.rel.core"><code>Match</code></a> of |
| the appropriate type for a rule's calling convention.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="RelFactories.ProjectFactory.html" title="interface in org.apache.calcite.rel.core">RelFactories.ProjectFactory</a></th> |
| <td class="colLast"> |
| <div class="block">Can create a |
| <a href="../logical/LogicalProject.html" title="class in org.apache.calcite.rel.logical"><code>LogicalProject</code></a> of the |
| appropriate type for this rule's calling convention.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="RelFactories.RepeatUnionFactory.html" title="interface in org.apache.calcite.rel.core">RelFactories.RepeatUnionFactory</a></th> |
| <td class="colLast"> |
| <div class="block">Can create a <a href="RepeatUnion.html" title="class in org.apache.calcite.rel.core"><code>RepeatUnion</code></a> of |
| the appropriate type for a rule's calling convention.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="RelFactories.SemiJoinFactory.html" title="interface in org.apache.calcite.rel.core">RelFactories.SemiJoinFactory</a></th> |
| <td class="colLast">Deprecated. |
| <div class="deprecationComment">Use <a href="RelFactories.JoinFactory.html" title="interface in org.apache.calcite.rel.core"><code>RelFactories.JoinFactory</code></a> instead.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="RelFactories.SetOpFactory.html" title="interface in org.apache.calcite.rel.core">RelFactories.SetOpFactory</a></th> |
| <td class="colLast"> |
| <div class="block">Can create a <a href="SetOp.html" title="class in org.apache.calcite.rel.core"><code>SetOp</code></a> for a particular kind of |
| set operation (UNION, EXCEPT, INTERSECT) and of the appropriate type |
| for this rule's calling convention.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="RelFactories.SnapshotFactory.html" title="interface in org.apache.calcite.rel.core">RelFactories.SnapshotFactory</a></th> |
| <td class="colLast"> |
| <div class="block">Can create a <a href="Snapshot.html" title="class in org.apache.calcite.rel.core"><code>Snapshot</code></a> of |
| the appropriate type for a rule's calling convention.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="RelFactories.SortExchangeFactory.html" title="interface in org.apache.calcite.rel.core">RelFactories.SortExchangeFactory</a></th> |
| <td class="colLast"> |
| <div class="block">Can create a <a href="SortExchange.html" title="class in org.apache.calcite.rel.core"><code>SortExchange</code></a> |
| of the appropriate type for a rule's calling convention.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="RelFactories.SortFactory.html" title="interface in org.apache.calcite.rel.core">RelFactories.SortFactory</a></th> |
| <td class="colLast"> |
| <div class="block">Can create a <a href="Sort.html" title="class in org.apache.calcite.rel.core"><code>Sort</code></a> of the appropriate type |
| for this rule's calling convention.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="RelFactories.SpoolFactory.html" title="interface in org.apache.calcite.rel.core">RelFactories.SpoolFactory</a></th> |
| <td class="colLast"> |
| <div class="block">Can create a <a href="Spool.html" title="class in org.apache.calcite.rel.core"><code>Spool</code></a> of |
| the appropriate type for a rule's calling convention.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="RelFactories.TableFunctionScanFactory.html" title="interface in org.apache.calcite.rel.core">RelFactories.TableFunctionScanFactory</a></th> |
| <td class="colLast"> |
| <div class="block">Can create a <a href="TableFunctionScan.html" title="class in org.apache.calcite.rel.core"><code>TableFunctionScan</code></a> |
| of the appropriate type for a rule's calling convention.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="RelFactories.TableScanFactory.html" title="interface in org.apache.calcite.rel.core">RelFactories.TableScanFactory</a></th> |
| <td class="colLast"> |
| <div class="block">Can create a <a href="TableScan.html" title="class in org.apache.calcite.rel.core"><code>TableScan</code></a> of the appropriate type for a rule's calling |
| convention.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="RelFactories.ValuesFactory.html" title="interface in org.apache.calcite.rel.core">RelFactories.ValuesFactory</a></th> |
| <td class="colLast"> |
| <div class="block">Can create a <a href="Values.html" title="class in org.apache.calcite.rel.core"><code>Values</code></a> of the appropriate type for a rule's calling |
| convention.</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="Aggregate.html" title="class in org.apache.calcite.rel.core">Aggregate</a></th> |
| <td class="colLast"> |
| <div class="block">Relational operator that eliminates |
| duplicates and computes totals.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="Aggregate.AggCallBinding.html" title="class in org.apache.calcite.rel.core">Aggregate.AggCallBinding</a></th> |
| <td class="colLast"> |
| <div class="block">Implementation of the <a href="../../sql/SqlOperatorBinding.html" title="class in org.apache.calcite.sql"><code>SqlOperatorBinding</code></a> interface for an |
| <a href="AggregateCall.html" title="class in org.apache.calcite.rel.core"><code>aggregate call</code></a> applied to a set of operands in the |
| context of a <a href="../logical/LogicalAggregate.html" title="class in org.apache.calcite.rel.logical"><code>LogicalAggregate</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="AggregateCall.html" title="class in org.apache.calcite.rel.core">AggregateCall</a></th> |
| <td class="colLast"> |
| <div class="block">Call to an aggregate function within an |
| <a href="Aggregate.html" title="class in org.apache.calcite.rel.core"><code>Aggregate</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="Calc.html" title="class in org.apache.calcite.rel.core">Calc</a></th> |
| <td class="colLast"> |
| <div class="block"><code>Calc</code> is an abstract base class for implementations of |
| <a href="../logical/LogicalCalc.html" title="class in org.apache.calcite.rel.logical"><code>LogicalCalc</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="Collect.html" title="class in org.apache.calcite.rel.core">Collect</a></th> |
| <td class="colLast"> |
| <div class="block">A relational expression that collapses multiple rows into one.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="Correlate.html" title="class in org.apache.calcite.rel.core">Correlate</a></th> |
| <td class="colLast"> |
| <div class="block">A relational operator that performs nested-loop joins.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="CorrelationId.html" title="class in org.apache.calcite.rel.core">CorrelationId</a></th> |
| <td class="colLast"> |
| <div class="block">Describes the necessary parameters for an implementation in order to |
| identify and set dynamic variables.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="EquiJoin.html" title="class in org.apache.calcite.rel.core">EquiJoin</a></th> |
| <td class="colLast">Deprecated. |
| <div class="deprecationComment">This class is no longer needed; if you are writing a sub-class of |
| Join that only accepts equi conditions, it is sufficient that it extends |
| <a href="Join.html" title="class in org.apache.calcite.rel.core"><code>Join</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="Exchange.html" title="class in org.apache.calcite.rel.core">Exchange</a></th> |
| <td class="colLast"> |
| <div class="block">Relational expression that imposes a particular distribution on its input |
| without otherwise changing its content.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="Filter.html" title="class in org.apache.calcite.rel.core">Filter</a></th> |
| <td class="colLast"> |
| <div class="block">Relational expression that iterates over its input |
| and returns elements for which <code>condition</code> evaluates to |
| <code>true</code>.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="Intersect.html" title="class in org.apache.calcite.rel.core">Intersect</a></th> |
| <td class="colLast"> |
| <div class="block">Relational expression that returns the intersection of the rows of its |
| inputs.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="Join.html" title="class in org.apache.calcite.rel.core">Join</a></th> |
| <td class="colLast"> |
| <div class="block">Relational expression that combines two relational expressions according to |
| some condition.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="JoinInfo.html" title="class in org.apache.calcite.rel.core">JoinInfo</a></th> |
| <td class="colLast"> |
| <div class="block">An analyzed join condition.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="Match.html" title="class in org.apache.calcite.rel.core">Match</a></th> |
| <td class="colLast"> |
| <div class="block">Relational expression that represent a MATCH_RECOGNIZE node.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="Match.RexMRAggCall.html" title="class in org.apache.calcite.rel.core">Match.RexMRAggCall</a></th> |
| <td class="colLast"> |
| <div class="block">Aggregate calls in match recognize.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="Minus.html" title="class in org.apache.calcite.rel.core">Minus</a></th> |
| <td class="colLast"> |
| <div class="block">Relational expression that returns the rows of its first input minus any |
| matching rows from its other inputs.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="Project.html" title="class in org.apache.calcite.rel.core">Project</a></th> |
| <td class="colLast"> |
| <div class="block">Relational expression that computes a set of |
| 'select expressions' from its input relational expression.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="Project.Flags.html" title="class in org.apache.calcite.rel.core">Project.Flags</a></th> |
| <td class="colLast">Deprecated.</td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="RelFactories.html" title="class in org.apache.calcite.rel.core">RelFactories</a></th> |
| <td class="colLast"> |
| <div class="block">Contains factory interface and default implementation for creating various |
| rel nodes.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="RelFactories.SnapshotFactoryImpl.html" title="class in org.apache.calcite.rel.core">RelFactories.SnapshotFactoryImpl</a></th> |
| <td class="colLast"> |
| <div class="block">Implementation of <a href="RelFactories.SnapshotFactory.html" title="interface in org.apache.calcite.rel.core"><code>RelFactories.SnapshotFactory</code></a> that |
| returns a vanilla <a href="../logical/LogicalSnapshot.html" title="class in org.apache.calcite.rel.logical"><code>LogicalSnapshot</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="RelFactories.Struct.html" title="class in org.apache.calcite.rel.core">RelFactories.Struct</a></th> |
| <td class="colLast"> |
| <div class="block">Immutable record that contains an instance of each factory.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="RepeatUnion.html" title="class in org.apache.calcite.rel.core">RepeatUnion</a></th> |
| <td class="colLast"> |
| <div class="block">Relational expression that computes a repeat union (recursive union in SQL |
| terminology).</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="Sample.html" title="class in org.apache.calcite.rel.core">Sample</a></th> |
| <td class="colLast"> |
| <div class="block">Relational expression that returns a sample of the rows from its input.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="SetOp.html" title="class in org.apache.calcite.rel.core">SetOp</a></th> |
| <td class="colLast"> |
| <div class="block"><code>SetOp</code> is an abstract base for relational set operators such |
| as UNION, MINUS (aka EXCEPT), and INTERSECT.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="Snapshot.html" title="class in org.apache.calcite.rel.core">Snapshot</a></th> |
| <td class="colLast"> |
| <div class="block">Relational expression that returns the contents of a relation expression as |
| it was at a given time in the past.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="Sort.html" title="class in org.apache.calcite.rel.core">Sort</a></th> |
| <td class="colLast"> |
| <div class="block">Relational expression that imposes a particular sort order on its input |
| without otherwise changing its content.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="SortExchange.html" title="class in org.apache.calcite.rel.core">SortExchange</a></th> |
| <td class="colLast"> |
| <div class="block">Relational expression that performs <a href="Exchange.html" title="class in org.apache.calcite.rel.core"><code>Exchange</code></a> and <a href="Sort.html" title="class in org.apache.calcite.rel.core"><code>Sort</code></a> |
| simultaneously.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="Spool.html" title="class in org.apache.calcite.rel.core">Spool</a></th> |
| <td class="colLast"> |
| <div class="block">Relational expression that iterates over its input and, in addition to |
| returning its results, will forward them into other consumers.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="TableFunctionScan.html" title="class in org.apache.calcite.rel.core">TableFunctionScan</a></th> |
| <td class="colLast"> |
| <div class="block">Relational expression that calls a table-valued function.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="TableModify.html" title="class in org.apache.calcite.rel.core">TableModify</a></th> |
| <td class="colLast"> |
| <div class="block">Relational expression that modifies a table.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="TableScan.html" title="class in org.apache.calcite.rel.core">TableScan</a></th> |
| <td class="colLast"> |
| <div class="block">Relational operator that returns the contents of a table.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="TableSpool.html" title="class in org.apache.calcite.rel.core">TableSpool</a></th> |
| <td class="colLast"> |
| <div class="block">Spool that writes into a table.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="Uncollect.html" title="class in org.apache.calcite.rel.core">Uncollect</a></th> |
| <td class="colLast"> |
| <div class="block">Relational expression that unnests its input's columns into a relation.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="Union.html" title="class in org.apache.calcite.rel.core">Union</a></th> |
| <td class="colLast"> |
| <div class="block">Relational expression that returns the union of the rows of its inputs, |
| optionally eliminating duplicates.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="Values.html" title="class in org.apache.calcite.rel.core">Values</a></th> |
| <td class="colLast"> |
| <div class="block">Relational expression whose value is a sequence of zero or more literal row |
| values.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="Window.html" title="class in org.apache.calcite.rel.core">Window</a></th> |
| <td class="colLast"> |
| <div class="block">A relational expression representing a set of window aggregates.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="Window.Group.html" title="class in org.apache.calcite.rel.core">Window.Group</a></th> |
| <td class="colLast"> |
| <div class="block">Group of windowed aggregate calls that have the same window specification.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="Window.RexWinAggCall.html" title="class in org.apache.calcite.rel.core">Window.RexWinAggCall</a></th> |
| <td class="colLast"> |
| <div class="block">A call to a windowed aggregate function.</div> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| </li> |
| <li class="blockList"> |
| <table class="typeSummary"> |
| <caption><span>Enum Summary</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Enum</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tbody> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="Aggregate.Group.html" title="enum in org.apache.calcite.rel.core">Aggregate.Group</a></th> |
| <td class="colLast"> |
| <div class="block">Describes the kind of roll-up.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="JoinRelType.html" title="enum in org.apache.calcite.rel.core">JoinRelType</a></th> |
| <td class="colLast"> |
| <div class="block">Enumeration of join types.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="Spool.Type.html" title="enum in org.apache.calcite.rel.core">Spool.Type</a></th> |
| <td class="colLast"> |
| <div class="block">Enumeration representing spool read / write type.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="TableModify.Operation.html" title="enum in org.apache.calcite.rel.core">TableModify.Operation</a></th> |
| <td class="colLast"> |
| <div class="block">Enumeration of supported modification operations.</div> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| </li> |
| </ul> |
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