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| <h1 title="Package" class="title">Package org.apache.calcite.rel.metadata</h1> |
| <div class="docSummary"> |
| <div class="block">Defines metadata interfaces and utilities for relational |
| expressions.</div> |
| </div> |
| <p>See: <a href="#package.description">Description</a></p> |
| </div> |
| <div class="contentContainer"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <table class="typeSummary" border="0" cellpadding="3" cellspacing="0" summary="Interface Summary table, listing interfaces, and an explanation"> |
| <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"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.AllPredicates.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.AllPredicates</a></td> |
| <td class="colLast"> |
| <div class="block">Metadata about the predicates that hold in the rows emitted from a |
| relational expression.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.AllPredicates.Handler.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.AllPredicates.Handler</a></td> |
| <td class="colLast"> |
| <div class="block">Handler API.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.Collation.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.Collation</a></td> |
| <td class="colLast"> |
| <div class="block">Metadata about which columns are sorted.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.Collation.Handler.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.Collation.Handler</a></td> |
| <td class="colLast"> |
| <div class="block">Handler API.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.ColumnOrigin.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.ColumnOrigin</a></td> |
| <td class="colLast"> |
| <div class="block">Metadata about the origins of columns.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.ColumnOrigin.Handler.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.ColumnOrigin.Handler</a></td> |
| <td class="colLast"> |
| <div class="block">Handler API.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.ColumnUniqueness.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.ColumnUniqueness</a></td> |
| <td class="colLast"> |
| <div class="block">Metadata about whether a set of columns uniquely identifies a row.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.ColumnUniqueness.Handler.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.ColumnUniqueness.Handler</a></td> |
| <td class="colLast"> |
| <div class="block">Handler API.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.CumulativeCost.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.CumulativeCost</a></td> |
| <td class="colLast"> |
| <div class="block">Metadata about the cost of evaluating a relational expression, including |
| all of its inputs.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.CumulativeCost.Handler.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.CumulativeCost.Handler</a></td> |
| <td class="colLast"> |
| <div class="block">Handler API.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.DistinctRowCount.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.DistinctRowCount</a></td> |
| <td class="colLast"> |
| <div class="block">Metadata about the number of distinct rows returned by a set of columns |
| in a relational expression.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.DistinctRowCount.Handler.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.DistinctRowCount.Handler</a></td> |
| <td class="colLast"> |
| <div class="block">Handler API.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.Distribution.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.Distribution</a></td> |
| <td class="colLast"> |
| <div class="block">Metadata about how a relational expression is distributed.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.Distribution.Handler.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.Distribution.Handler</a></td> |
| <td class="colLast"> |
| <div class="block">Handler API.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.ExplainVisibility.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.ExplainVisibility</a></td> |
| <td class="colLast"> |
| <div class="block">Metadata about whether a relational expression should appear in a plan.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.ExplainVisibility.Handler.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.ExplainVisibility.Handler</a></td> |
| <td class="colLast"> |
| <div class="block">Handler API.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.ExpressionLineage.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.ExpressionLineage</a></td> |
| <td class="colLast"> |
| <div class="block">Metadata about the origins of expressions.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.ExpressionLineage.Handler.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.ExpressionLineage.Handler</a></td> |
| <td class="colLast"> |
| <div class="block">Handler API.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.LowerBoundCost.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.LowerBoundCost</a></td> |
| <td class="colLast"> |
| <div class="block">Metadata to get the lower bound cost of a RelNode.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.LowerBoundCost.Handler.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.LowerBoundCost.Handler</a></td> |
| <td class="colLast"> |
| <div class="block">Handler API.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.MaxRowCount.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.MaxRowCount</a></td> |
| <td class="colLast"> |
| <div class="block">Metadata about the maximum number of rows returned by a relational |
| expression.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.MaxRowCount.Handler.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.MaxRowCount.Handler</a></td> |
| <td class="colLast"> |
| <div class="block">Handler API.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.Memory.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.Memory</a></td> |
| <td class="colLast"> |
| <div class="block">Metadata about the memory use of an operator.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.Memory.Handler.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.Memory.Handler</a></td> |
| <td class="colLast"> |
| <div class="block">Handler API.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.MinRowCount.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.MinRowCount</a></td> |
| <td class="colLast"> |
| <div class="block">Metadata about the minimum number of rows returned by a relational |
| expression.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.MinRowCount.Handler.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.MinRowCount.Handler</a></td> |
| <td class="colLast"> |
| <div class="block">Handler API.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.NodeTypes.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.NodeTypes</a></td> |
| <td class="colLast"> |
| <div class="block">Metadata about the node types in a relational expression.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.NodeTypes.Handler.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.NodeTypes.Handler</a></td> |
| <td class="colLast"> |
| <div class="block">Handler API.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.NonCumulativeCost.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.NonCumulativeCost</a></td> |
| <td class="colLast"> |
| <div class="block">Metadata about the cost of evaluating a relational expression, not |
| including its inputs.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.NonCumulativeCost.Handler.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.NonCumulativeCost.Handler</a></td> |
| <td class="colLast"> |
| <div class="block">Handler API.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.Parallelism.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.Parallelism</a></td> |
| <td class="colLast"> |
| <div class="block">Metadata about the degree of parallelism of a relational expression, and |
| how its operators are assigned to processes with independent resource |
| pools.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.Parallelism.Handler.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.Parallelism.Handler</a></td> |
| <td class="colLast"> |
| <div class="block">Handler API.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.PercentageOriginalRows.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.PercentageOriginalRows</a></td> |
| <td class="colLast"> |
| <div class="block">Metadata about the proportion of original rows that remain in a relational |
| expression.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.PercentageOriginalRows.Handler.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.PercentageOriginalRows.Handler</a></td> |
| <td class="colLast"> |
| <div class="block">Handler API.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.PopulationSize.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.PopulationSize</a></td> |
| <td class="colLast"> |
| <div class="block">Metadata about the number of distinct values in the original source of a |
| column or set of columns.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.PopulationSize.Handler.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.PopulationSize.Handler</a></td> |
| <td class="colLast"> |
| <div class="block">Handler API.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.Predicates.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.Predicates</a></td> |
| <td class="colLast"> |
| <div class="block">Metadata about the predicates that hold in the rows emitted from a |
| relational expression.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.Predicates.Handler.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.Predicates.Handler</a></td> |
| <td class="colLast"> |
| <div class="block">Handler API.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.RowCount.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.RowCount</a></td> |
| <td class="colLast"> |
| <div class="block">Metadata about the number of rows returned by a relational expression.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.RowCount.Handler.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.RowCount.Handler</a></td> |
| <td class="colLast"> |
| <div class="block">Handler API.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.Selectivity.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.Selectivity</a></td> |
| <td class="colLast"> |
| <div class="block">Metadata about the selectivity of a predicate.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.Selectivity.Handler.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.Selectivity.Handler</a></td> |
| <td class="colLast"> |
| <div class="block">Handler API.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.Size.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.Size</a></td> |
| <td class="colLast"> |
| <div class="block">Metadata about the size of rows and columns.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.Size.Handler.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.Size.Handler</a></td> |
| <td class="colLast"> |
| <div class="block">Handler API.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.TableReferences.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.TableReferences</a></td> |
| <td class="colLast"> |
| <div class="block">Metadata to obtain references to tables used by a given expression.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.TableReferences.Handler.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.TableReferences.Handler</a></td> |
| <td class="colLast"> |
| <div class="block">Handler API.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.UniqueKeys.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.UniqueKeys</a></td> |
| <td class="colLast"> |
| <div class="block">Metadata about which combinations of columns are unique identifiers.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.UniqueKeys.Handler.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.UniqueKeys.Handler</a></td> |
| <td class="colLast"> |
| <div class="block">Handler API.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/Metadata.html" title="interface in org.apache.calcite.rel.metadata">Metadata</a></td> |
| <td class="colLast"> |
| <div class="block">Metadata about a relational expression.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/MetadataFactory.html" title="interface in org.apache.calcite.rel.metadata">MetadataFactory</a></td> |
| <td class="colLast"> |
| <div class="block">Source of metadata about relational expressions.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/MetadataHandler.html" title="interface in org.apache.calcite.rel.metadata">MetadataHandler</a><M extends <a href="../../../../../org/apache/calcite/rel/metadata/Metadata.html" title="interface in org.apache.calcite.rel.metadata">Metadata</a>></td> |
| <td class="colLast"> |
| <div class="block">Marker interface for a handler of metadata.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/RelMetadataProvider.html" title="interface in org.apache.calcite.rel.metadata">RelMetadataProvider</a></td> |
| <td class="colLast"> |
| <div class="block">RelMetadataProvider defines an interface for obtaining metadata about |
| relational expressions.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/UnboundMetadata.html" title="interface in org.apache.calcite.rel.metadata">UnboundMetadata</a><M extends <a href="../../../../../org/apache/calcite/rel/metadata/Metadata.html" title="interface in org.apache.calcite.rel.metadata">Metadata</a>></td> |
| <td class="colLast"> |
| <div class="block">Metadata that needs to be bound to a <a href="../../../../../org/apache/calcite/rel/RelNode.html" title="interface in org.apache.calcite.rel"><code>RelNode</code></a> and |
| <a href="../../../../../org/apache/calcite/rel/metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata"><code>RelMetadataQuery</code></a> before it can be used.</div> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| </li> |
| <li class="blockList"> |
| <table class="typeSummary" border="0" cellpadding="3" cellspacing="0" summary="Class Summary table, listing classes, and an explanation"> |
| <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"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.html" title="class in org.apache.calcite.rel.metadata">BuiltInMetadata</a></td> |
| <td class="colLast"> |
| <div class="block">Contains the interfaces for several common forms of metadata.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/CachingRelMetadataProvider.html" title="class in org.apache.calcite.rel.metadata">CachingRelMetadataProvider</a></td> |
| <td class="colLast"> |
| <div class="block">Implementation of the <a href="../../../../../org/apache/calcite/rel/metadata/RelMetadataProvider.html" title="interface in org.apache.calcite.rel.metadata"><code>RelMetadataProvider</code></a> |
| interface that caches results from an underlying provider.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/ChainedRelMetadataProvider.html" title="class in org.apache.calcite.rel.metadata">ChainedRelMetadataProvider</a></td> |
| <td class="colLast"> |
| <div class="block">Implementation of the <a href="../../../../../org/apache/calcite/rel/metadata/RelMetadataProvider.html" title="interface in org.apache.calcite.rel.metadata"><code>RelMetadataProvider</code></a> |
| interface via the |
| <a href="../../../../../org/apache/calcite/util/Glossary.html#CHAIN_OF_RESPONSIBILITY_PATTERN"><code>Glossary.CHAIN_OF_RESPONSIBILITY_PATTERN</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/DefaultRelMetadataProvider.html" title="class in org.apache.calcite.rel.metadata">DefaultRelMetadataProvider</a></td> |
| <td class="colLast"> |
| <div class="block">DefaultRelMetadataProvider supplies a default implementation of the |
| <a href="../../../../../org/apache/calcite/rel/metadata/RelMetadataProvider.html" title="interface in org.apache.calcite.rel.metadata"><code>RelMetadataProvider</code></a> interface.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/JaninoRelMetadataProvider.html" title="class in org.apache.calcite.rel.metadata">JaninoRelMetadataProvider</a></td> |
| <td class="colLast"> |
| <div class="block">Implementation of the <a href="../../../../../org/apache/calcite/rel/metadata/RelMetadataProvider.html" title="interface in org.apache.calcite.rel.metadata"><code>RelMetadataProvider</code></a> interface that generates |
| a class that dispatches to the underlying providers.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/MetadataDef.html" title="class in org.apache.calcite.rel.metadata">MetadataDef</a><M extends <a href="../../../../../org/apache/calcite/rel/metadata/Metadata.html" title="interface in org.apache.calcite.rel.metadata">Metadata</a>></td> |
| <td class="colLast"> |
| <div class="block">Definition of metadata.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/MetadataFactoryImpl.html" title="class in org.apache.calcite.rel.metadata">MetadataFactoryImpl</a></td> |
| <td class="colLast"> |
| <div class="block">Implementation of <a href="../../../../../org/apache/calcite/rel/metadata/MetadataFactory.html" title="interface in org.apache.calcite.rel.metadata"><code>MetadataFactory</code></a> that gets providers from a |
| <a href="../../../../../org/apache/calcite/rel/metadata/RelMetadataProvider.html" title="interface in org.apache.calcite.rel.metadata"><code>RelMetadataProvider</code></a> and stores them in a cache.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/ReflectiveRelMetadataProvider.html" title="class in org.apache.calcite.rel.metadata">ReflectiveRelMetadataProvider</a></td> |
| <td class="colLast"> |
| <div class="block">Implementation of the <a href="../../../../../org/apache/calcite/rel/metadata/RelMetadataProvider.html" title="interface in org.apache.calcite.rel.metadata"><code>RelMetadataProvider</code></a> interface that dispatches |
| metadata methods to methods on a given object via reflection.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/RelColumnMapping.html" title="class in org.apache.calcite.rel.metadata">RelColumnMapping</a></td> |
| <td class="colLast"> |
| <div class="block">Mapping from an input column of a <a href="../../../../../org/apache/calcite/rel/RelNode.html" title="interface in org.apache.calcite.rel"><code>RelNode</code></a> to |
| one of its output columns.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/RelColumnOrigin.html" title="class in org.apache.calcite.rel.metadata">RelColumnOrigin</a></td> |
| <td class="colLast"> |
| <div class="block">RelColumnOrigin is a data structure describing one of the origins of an |
| output column produced by a relational expression.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/RelMdAllPredicates.html" title="class in org.apache.calcite.rel.metadata">RelMdAllPredicates</a></td> |
| <td class="colLast"> |
| <div class="block">Utility to extract Predicates that are present in the (sub)plan |
| starting at this node.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/RelMdCollation.html" title="class in org.apache.calcite.rel.metadata">RelMdCollation</a></td> |
| <td class="colLast"> |
| <div class="block">RelMdCollation supplies a default implementation of |
| <a href="../../../../../org/apache/calcite/rel/metadata/RelMetadataQuery.html#collations-org.apache.calcite.rel.RelNode-"><code>RelMetadataQuery.collations(org.apache.calcite.rel.RelNode)</code></a> |
| for the standard logical algebra.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/RelMdColumnOrigins.html" title="class in org.apache.calcite.rel.metadata">RelMdColumnOrigins</a></td> |
| <td class="colLast"> |
| <div class="block">RelMdColumnOrigins supplies a default implementation of |
| <a href="../../../../../org/apache/calcite/rel/metadata/RelMetadataQuery.html#getColumnOrigins-org.apache.calcite.rel.RelNode-int-"><code>RelMetadataQuery.getColumnOrigins(org.apache.calcite.rel.RelNode, int)</code></a> for the standard logical algebra.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/RelMdColumnUniqueness.html" title="class in org.apache.calcite.rel.metadata">RelMdColumnUniqueness</a></td> |
| <td class="colLast"> |
| <div class="block">RelMdColumnUniqueness supplies a default implementation of |
| <a href="../../../../../org/apache/calcite/rel/metadata/RelMetadataQuery.html#areColumnsUnique-org.apache.calcite.rel.RelNode-org.apache.calcite.util.ImmutableBitSet-"><code>RelMetadataQuery.areColumnsUnique(org.apache.calcite.rel.RelNode, org.apache.calcite.util.ImmutableBitSet)</code></a> for the standard logical algebra.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/RelMdDistinctRowCount.html" title="class in org.apache.calcite.rel.metadata">RelMdDistinctRowCount</a></td> |
| <td class="colLast"> |
| <div class="block">RelMdDistinctRowCount supplies a default implementation of |
| <a href="../../../../../org/apache/calcite/rel/metadata/RelMetadataQuery.html#getDistinctRowCount-org.apache.calcite.rel.RelNode-org.apache.calcite.util.ImmutableBitSet-org.apache.calcite.rex.RexNode-"><code>RelMetadataQuery.getDistinctRowCount(org.apache.calcite.rel.RelNode, org.apache.calcite.util.ImmutableBitSet, org.apache.calcite.rex.RexNode)</code></a> for the standard logical |
| algebra.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/RelMdDistribution.html" title="class in org.apache.calcite.rel.metadata">RelMdDistribution</a></td> |
| <td class="colLast"> |
| <div class="block">RelMdCollation supplies a default implementation of |
| <a href="../../../../../org/apache/calcite/rel/metadata/RelMetadataQuery.html#distribution-org.apache.calcite.rel.RelNode-"><code>RelMetadataQuery.distribution(org.apache.calcite.rel.RelNode)</code></a> |
| for the standard logical algebra.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/RelMdExplainVisibility.html" title="class in org.apache.calcite.rel.metadata">RelMdExplainVisibility</a></td> |
| <td class="colLast"> |
| <div class="block">RelMdExplainVisibility supplies a default implementation of |
| <a href="../../../../../org/apache/calcite/rel/metadata/RelMetadataQuery.html#isVisibleInExplain-org.apache.calcite.rel.RelNode-org.apache.calcite.sql.SqlExplainLevel-"><code>RelMetadataQuery.isVisibleInExplain(org.apache.calcite.rel.RelNode, org.apache.calcite.sql.SqlExplainLevel)</code></a> for the standard logical algebra.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/RelMdExpressionLineage.html" title="class in org.apache.calcite.rel.metadata">RelMdExpressionLineage</a></td> |
| <td class="colLast"> |
| <div class="block">Default implementation of |
| <a href="../../../../../org/apache/calcite/rel/metadata/RelMetadataQuery.html#getExpressionLineage-org.apache.calcite.rel.RelNode-org.apache.calcite.rex.RexNode-"><code>RelMetadataQuery.getExpressionLineage(org.apache.calcite.rel.RelNode, org.apache.calcite.rex.RexNode)</code></a> for the standard logical |
| algebra.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/RelMdLowerBoundCost.html" title="class in org.apache.calcite.rel.metadata">RelMdLowerBoundCost</a></td> |
| <td class="colLast"> |
| <div class="block">Default implementations of the |
| <a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.LowerBoundCost.html" title="interface in org.apache.calcite.rel.metadata"><code>BuiltInMetadata.LowerBoundCost</code></a> |
| metadata provider for the standard algebra.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/RelMdMaxRowCount.html" title="class in org.apache.calcite.rel.metadata">RelMdMaxRowCount</a></td> |
| <td class="colLast"> |
| <div class="block">RelMdMaxRowCount supplies a default implementation of |
| <a href="../../../../../org/apache/calcite/rel/metadata/RelMetadataQuery.html#getMaxRowCount-org.apache.calcite.rel.RelNode-"><code>RelMetadataQuery.getMaxRowCount(org.apache.calcite.rel.RelNode)</code></a> for the standard logical algebra.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/RelMdMemory.html" title="class in org.apache.calcite.rel.metadata">RelMdMemory</a></td> |
| <td class="colLast"> |
| <div class="block">Default implementations of the |
| <a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.Memory.html" title="interface in org.apache.calcite.rel.metadata"><code>BuiltInMetadata.Memory</code></a> |
| metadata provider for the standard logical algebra.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/RelMdMinRowCount.html" title="class in org.apache.calcite.rel.metadata">RelMdMinRowCount</a></td> |
| <td class="colLast"> |
| <div class="block">RelMdMinRowCount supplies a default implementation of |
| <a href="../../../../../org/apache/calcite/rel/metadata/RelMetadataQuery.html#getMinRowCount-org.apache.calcite.rel.RelNode-"><code>RelMetadataQuery.getMinRowCount(org.apache.calcite.rel.RelNode)</code></a> for the standard logical algebra.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/RelMdNodeTypes.html" title="class in org.apache.calcite.rel.metadata">RelMdNodeTypes</a></td> |
| <td class="colLast"> |
| <div class="block">RelMdNodeTypeCount supplies a default implementation of |
| <a href="../../../../../org/apache/calcite/rel/metadata/RelMetadataQuery.html#getNodeTypes-org.apache.calcite.rel.RelNode-"><code>RelMetadataQuery.getNodeTypes(org.apache.calcite.rel.RelNode)</code></a> for the standard logical algebra.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/RelMdParallelism.html" title="class in org.apache.calcite.rel.metadata">RelMdParallelism</a></td> |
| <td class="colLast"> |
| <div class="block">Default implementations of the |
| <a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.Parallelism.html" title="interface in org.apache.calcite.rel.metadata"><code>BuiltInMetadata.Parallelism</code></a> |
| metadata provider for the standard logical algebra.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/RelMdPercentageOriginalRows.html" title="class in org.apache.calcite.rel.metadata">RelMdPercentageOriginalRows</a></td> |
| <td class="colLast"> |
| <div class="block">RelMdPercentageOriginalRows supplies a default implementation of |
| <a href="../../../../../org/apache/calcite/rel/metadata/RelMetadataQuery.html#getPercentageOriginalRows-org.apache.calcite.rel.RelNode-"><code>RelMetadataQuery.getPercentageOriginalRows(org.apache.calcite.rel.RelNode)</code></a> for the standard logical |
| algebra.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/RelMdPopulationSize.html" title="class in org.apache.calcite.rel.metadata">RelMdPopulationSize</a></td> |
| <td class="colLast"> |
| <div class="block">RelMdPopulationSize supplies a default implementation of |
| <a href="../../../../../org/apache/calcite/rel/metadata/RelMetadataQuery.html#getPopulationSize-org.apache.calcite.rel.RelNode-org.apache.calcite.util.ImmutableBitSet-"><code>RelMetadataQuery.getPopulationSize(org.apache.calcite.rel.RelNode, org.apache.calcite.util.ImmutableBitSet)</code></a> for the standard logical algebra.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/RelMdPredicates.html" title="class in org.apache.calcite.rel.metadata">RelMdPredicates</a></td> |
| <td class="colLast"> |
| <div class="block">Utility to infer Predicates that are applicable above a RelNode.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/RelMdRowCount.html" title="class in org.apache.calcite.rel.metadata">RelMdRowCount</a></td> |
| <td class="colLast"> |
| <div class="block">RelMdRowCount supplies a default implementation of |
| <a href="../../../../../org/apache/calcite/rel/metadata/RelMetadataQuery.html#getRowCount-org.apache.calcite.rel.RelNode-"><code>RelMetadataQuery.getRowCount(org.apache.calcite.rel.RelNode)</code></a> for the standard logical algebra.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/RelMdSelectivity.html" title="class in org.apache.calcite.rel.metadata">RelMdSelectivity</a></td> |
| <td class="colLast"> |
| <div class="block">RelMdSelectivity supplies a default implementation of |
| <a href="../../../../../org/apache/calcite/rel/metadata/RelMetadataQuery.html#getSelectivity-org.apache.calcite.rel.RelNode-org.apache.calcite.rex.RexNode-"><code>RelMetadataQuery.getSelectivity(org.apache.calcite.rel.RelNode, org.apache.calcite.rex.RexNode)</code></a> for the standard logical algebra.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/RelMdSize.html" title="class in org.apache.calcite.rel.metadata">RelMdSize</a></td> |
| <td class="colLast"> |
| <div class="block">Default implementations of the |
| <a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.Size.html" title="interface in org.apache.calcite.rel.metadata"><code>BuiltInMetadata.Size</code></a> |
| metadata provider for the standard logical algebra.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/RelMdTableReferences.html" title="class in org.apache.calcite.rel.metadata">RelMdTableReferences</a></td> |
| <td class="colLast"> |
| <div class="block">Default implementation of <a href="../../../../../org/apache/calcite/rel/metadata/RelMetadataQuery.html#getTableReferences-org.apache.calcite.rel.RelNode-"><code>RelMetadataQuery.getTableReferences(org.apache.calcite.rel.RelNode)</code></a> for the |
| standard logical algebra.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/RelMdUniqueKeys.html" title="class in org.apache.calcite.rel.metadata">RelMdUniqueKeys</a></td> |
| <td class="colLast"> |
| <div class="block">RelMdUniqueKeys supplies a default implementation of |
| <a href="../../../../../org/apache/calcite/rel/metadata/RelMetadataQuery.html#getUniqueKeys-org.apache.calcite.rel.RelNode-"><code>RelMetadataQuery.getUniqueKeys(org.apache.calcite.rel.RelNode)</code></a> for the standard logical algebra.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/RelMdUtil.html" title="class in org.apache.calcite.rel.metadata">RelMdUtil</a></td> |
| <td class="colLast"> |
| <div class="block">RelMdUtil provides utility methods used by the metadata provider methods.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a></td> |
| <td class="colLast"> |
| <div class="block">RelMetadataQuery provides a strongly-typed facade on top of |
| <a href="../../../../../org/apache/calcite/rel/metadata/RelMetadataProvider.html" title="interface in org.apache.calcite.rel.metadata"><code>RelMetadataProvider</code></a> for the set of relational expression metadata |
| queries defined as standard within Calcite.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/RelMetadataQueryBase.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQueryBase</a></td> |
| <td class="colLast"> |
| <div class="block">Base class for the RelMetadataQuery that uses the metadata handler class |
| generated by the Janino.</div> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| </li> |
| <li class="blockList"> |
| <table class="typeSummary" border="0" cellpadding="3" cellspacing="0" summary="Enum Summary table, listing enums, and an explanation"> |
| <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"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/NullSentinel.html" title="enum in org.apache.calcite.rel.metadata">NullSentinel</a></td> |
| <td class="colLast"> |
| <div class="block">Placeholder for null values.</div> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| </li> |
| <li class="blockList"> |
| <table class="typeSummary" border="0" cellpadding="3" cellspacing="0" summary="Exception Summary table, listing exceptions, and an explanation"> |
| <caption><span>Exception Summary</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Exception</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tbody> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/CyclicMetadataException.html" title="class in org.apache.calcite.rel.metadata">CyclicMetadataException</a></td> |
| <td class="colLast"> |
| <div class="block">Exception that indicates that a cycle has been detected while |
| computing metadata.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/calcite/rel/metadata/JaninoRelMetadataProvider.NoHandler.html" title="class in org.apache.calcite.rel.metadata">JaninoRelMetadataProvider.NoHandler</a></td> |
| <td class="colLast"> |
| <div class="block">Exception that indicates there there should be a handler for |
| this class but there is not.</div> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| </li> |
| </ul> |
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| <h2 title="Package org.apache.calcite.rel.metadata Description">Package org.apache.calcite.rel.metadata Description</h2> |
| <div class="block">Defines metadata interfaces and utilities for relational |
| expressions.</div> |
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