javadocAggregate/org/apache/calcite/rel/metadata/BuiltInMetadata.html - calcite-site - Git at Google

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 <div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">org.apache.calcite.rel.metadata</a></div>
 <h1 title="Class BuiltInMetadata" class="title">Class BuiltInMetadata</h1>
 </div>
 <div class="contentContainer">
 <div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">java.lang.Object</a>
 <div class="inheritance">org.apache.calcite.rel.metadata.BuiltInMetadata</div>
 </div>
 <section class="description">
 <hr>
 <pre>public abstract class <span class="typeNameLabel">BuiltInMetadata</span>
 extends <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a></pre>
 <div class="block">Contains the interfaces for several common forms of metadata.</div>
 </section>
 <section class="summary">
 <ul class="blockList">
 <!-- ======== NESTED CLASS SUMMARY ======== -->
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 <h2>Nested Class Summary</h2>
 <div class="memberSummary">
 <table>
 <caption><span>Nested Classes</span><span class="tabEnd">&nbsp;</span></caption>
 <thead>
 <tr>
 <th class="colFirst" scope="col">Modifier and Type</th>
 <th class="colSecond" scope="col">Class</th>
 <th class="colLast" scope="col">Description</th>
 </tr>
 </thead>
 <tbody>
 <tr class="altColor">
 <td class="colFirst"><code>static interface&nbsp;</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.AllPredicates.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.AllPredicates</a></span></code></th>
 <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"><code>static interface&nbsp;</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.Collation.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.Collation</a></span></code></th>
 <td class="colLast">
 <div class="block">Metadata about which columns are sorted.</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static interface&nbsp;</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.ColumnOrigin.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.ColumnOrigin</a></span></code></th>
 <td class="colLast">
 <div class="block">Metadata about the origins of columns.</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static interface&nbsp;</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.ColumnUniqueness.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.ColumnUniqueness</a></span></code></th>
 <td class="colLast">
 <div class="block">Metadata about whether a set of columns uniquely identifies a row.</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static interface&nbsp;</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.CumulativeCost.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.CumulativeCost</a></span></code></th>
 <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"><code>static interface&nbsp;</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.DistinctRowCount.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.DistinctRowCount</a></span></code></th>
 <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="altColor">
 <td class="colFirst"><code>static interface&nbsp;</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.Distribution.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.Distribution</a></span></code></th>
 <td class="colLast">
 <div class="block">Metadata about how a relational expression is distributed.</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static interface&nbsp;</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.ExplainVisibility.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.ExplainVisibility</a></span></code></th>
 <td class="colLast">
 <div class="block">Metadata about whether a relational expression should appear in a plan.</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static interface&nbsp;</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.ExpressionLineage.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.ExpressionLineage</a></span></code></th>
 <td class="colLast">
 <div class="block">Metadata about the origins of expressions.</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static interface&nbsp;</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.LowerBoundCost.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.LowerBoundCost</a></span></code></th>
 <td class="colLast">
 <div class="block">Metadata to get the lower bound cost of a RelNode.</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static interface&nbsp;</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.MaxRowCount.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.MaxRowCount</a></span></code></th>
 <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"><code>static interface&nbsp;</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.Memory.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.Memory</a></span></code></th>
 <td class="colLast">
 <div class="block">Metadata about the memory use of an operator.</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static interface&nbsp;</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.MinRowCount.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.MinRowCount</a></span></code></th>
 <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"><code>static interface&nbsp;</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.NodeTypes.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.NodeTypes</a></span></code></th>
 <td class="colLast">
 <div class="block">Metadata about the node types in a relational expression.</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static interface&nbsp;</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.NonCumulativeCost.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.NonCumulativeCost</a></span></code></th>
 <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"><code>static interface&nbsp;</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.Parallelism.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.Parallelism</a></span></code></th>
 <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="altColor">
 <td class="colFirst"><code>static interface&nbsp;</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.PercentageOriginalRows.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.PercentageOriginalRows</a></span></code></th>
 <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"><code>static interface&nbsp;</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.PopulationSize.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.PopulationSize</a></span></code></th>
 <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="altColor">
 <td class="colFirst"><code>static interface&nbsp;</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.Predicates.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.Predicates</a></span></code></th>
 <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"><code>static interface&nbsp;</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.RowCount.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.RowCount</a></span></code></th>
 <td class="colLast">
 <div class="block">Metadata about the number of rows returned by a relational expression.</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static interface&nbsp;</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.Selectivity.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.Selectivity</a></span></code></th>
 <td class="colLast">
 <div class="block">Metadata about the selectivity of a predicate.</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static interface&nbsp;</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.Size.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.Size</a></span></code></th>
 <td class="colLast">
 <div class="block">Metadata about the size of rows and columns.</div>
 </td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static interface&nbsp;</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.TableReferences.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.TableReferences</a></span></code></th>
 <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"><code>static interface&nbsp;</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.UniqueKeys.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.UniqueKeys</a></span></code></th>
 <td class="colLast">
 <div class="block">Metadata about which combinations of columns are unique identifiers.</div>
 </td>
 </tr>
 </tbody>
 </table>
 </div>
 </section>
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 <th class="colLast" scope="col">Description</th>
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 <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E()">BuiltInMetadata</a></span>()</code></th>
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 <!--   -->
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	<div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">java.lang.Object</a>
	<div class="inheritance">org.apache.calcite.rel.metadata.BuiltInMetadata</div>
	</div>
	<section class="description">
	<hr>
	<pre>public abstract class <span class="typeNameLabel">BuiltInMetadata</span>
	extends <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a></pre>
	<div class="block">Contains the interfaces for several common forms of metadata.</div>
	</section>
	<section class="summary">
	<ul class="blockList">
	<!-- ======== NESTED CLASS SUMMARY ======== -->
	<li class="blockList">
	<section class="nestedClassSummary"><a id="nested.class.summary">
	<!-- -->
	</a>
	<h2>Nested Class Summary</h2>
	<div class="memberSummary">
	<table>
	<caption><span>Nested Classes</span><span class="tabEnd"> </span></caption>
	<thead>
	<tr>
	<th class="colFirst" scope="col">Modifier and Type</th>
	<th class="colSecond" scope="col">Class</th>
	<th class="colLast" scope="col">Description</th>
	</tr>
	</thead>
	<tbody>
	<tr class="altColor">
	<td class="colFirst"><code>static interface </code></td>
	<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.AllPredicates.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.AllPredicates</a></span></code></th>
	<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"><code>static interface </code></td>
	<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.Collation.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.Collation</a></span></code></th>
	<td class="colLast">
	<div class="block">Metadata about which columns are sorted.</div>
	</td>
	</tr>
	<tr class="altColor">
	<td class="colFirst"><code>static interface </code></td>
	<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.ColumnOrigin.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.ColumnOrigin</a></span></code></th>
	<td class="colLast">
	<div class="block">Metadata about the origins of columns.</div>
	</td>
	</tr>
	<tr class="rowColor">
	<td class="colFirst"><code>static interface </code></td>
	<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.ColumnUniqueness.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.ColumnUniqueness</a></span></code></th>
	<td class="colLast">
	<div class="block">Metadata about whether a set of columns uniquely identifies a row.</div>
	</td>
	</tr>
	<tr class="altColor">
	<td class="colFirst"><code>static interface </code></td>
	<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.CumulativeCost.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.CumulativeCost</a></span></code></th>
	<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"><code>static interface </code></td>
	<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.DistinctRowCount.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.DistinctRowCount</a></span></code></th>
	<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="altColor">
	<td class="colFirst"><code>static interface </code></td>
	<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.Distribution.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.Distribution</a></span></code></th>
	<td class="colLast">
	<div class="block">Metadata about how a relational expression is distributed.</div>
	</td>
	</tr>
	<tr class="rowColor">
	<td class="colFirst"><code>static interface </code></td>
	<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.ExplainVisibility.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.ExplainVisibility</a></span></code></th>
	<td class="colLast">
	<div class="block">Metadata about whether a relational expression should appear in a plan.</div>
	</td>
	</tr>
	<tr class="altColor">
	<td class="colFirst"><code>static interface </code></td>
	<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.ExpressionLineage.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.ExpressionLineage</a></span></code></th>
	<td class="colLast">
	<div class="block">Metadata about the origins of expressions.</div>
	</td>
	</tr>
	<tr class="rowColor">
	<td class="colFirst"><code>static interface </code></td>
	<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.LowerBoundCost.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.LowerBoundCost</a></span></code></th>
	<td class="colLast">
	<div class="block">Metadata to get the lower bound cost of a RelNode.</div>
	</td>
	</tr>
	<tr class="altColor">
	<td class="colFirst"><code>static interface </code></td>
	<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.MaxRowCount.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.MaxRowCount</a></span></code></th>
	<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"><code>static interface </code></td>
	<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.Memory.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.Memory</a></span></code></th>
	<td class="colLast">
	<div class="block">Metadata about the memory use of an operator.</div>
	</td>
	</tr>
	<tr class="altColor">
	<td class="colFirst"><code>static interface </code></td>
	<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.MinRowCount.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.MinRowCount</a></span></code></th>
	<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"><code>static interface </code></td>
	<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.NodeTypes.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.NodeTypes</a></span></code></th>
	<td class="colLast">
	<div class="block">Metadata about the node types in a relational expression.</div>
	</td>
	</tr>
	<tr class="altColor">
	<td class="colFirst"><code>static interface </code></td>
	<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.NonCumulativeCost.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.NonCumulativeCost</a></span></code></th>
	<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"><code>static interface </code></td>
	<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.Parallelism.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.Parallelism</a></span></code></th>
	<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="altColor">
	<td class="colFirst"><code>static interface </code></td>
	<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.PercentageOriginalRows.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.PercentageOriginalRows</a></span></code></th>
	<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"><code>static interface </code></td>
	<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.PopulationSize.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.PopulationSize</a></span></code></th>
	<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="altColor">
	<td class="colFirst"><code>static interface </code></td>
	<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.Predicates.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.Predicates</a></span></code></th>
	<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"><code>static interface </code></td>
	<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.RowCount.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.RowCount</a></span></code></th>
	<td class="colLast">
	<div class="block">Metadata about the number of rows returned by a relational expression.</div>
	</td>
	</tr>
	<tr class="altColor">
	<td class="colFirst"><code>static interface </code></td>
	<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.Selectivity.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.Selectivity</a></span></code></th>
	<td class="colLast">
	<div class="block">Metadata about the selectivity of a predicate.</div>
	</td>
	</tr>
	<tr class="rowColor">
	<td class="colFirst"><code>static interface </code></td>
	<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.Size.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.Size</a></span></code></th>
	<td class="colLast">
	<div class="block">Metadata about the size of rows and columns.</div>
	</td>
	</tr>
	<tr class="altColor">
	<td class="colFirst"><code>static interface </code></td>
	<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.TableReferences.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.TableReferences</a></span></code></th>
	<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"><code>static interface </code></td>
	<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="BuiltInMetadata.UniqueKeys.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.UniqueKeys</a></span></code></th>
	<td class="colLast">
	<div class="block">Metadata about which combinations of columns are unique identifiers.</div>
	</td>
	</tr>
	</tbody>
	</table>
	</div>
	</section>
	</li>
	<!-- ======== CONSTRUCTOR SUMMARY ======== -->
	<li class="blockList">
	<section class="constructorSummary"><a id="constructor.summary">
	<!-- -->
	</a>
	<h2>Constructor Summary</h2>
	<div class="memberSummary">
	<table>
	<caption><span>Constructors</span><span class="tabEnd"> </span></caption>
	<thead>
	<tr>
	<th class="colFirst" scope="col">Constructor</th>
	<th class="colLast" scope="col">Description</th>
	</tr>
	</thead>
	<tbody>
	<tr class="altColor">
	<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E()">BuiltInMetadata</a></span>()</code></th>
	<td class="colLast"> </td>
	</tr>
	</tbody>
	</table>
	</div>
	</section>
	</li>
	<!-- ========== METHOD SUMMARY =========== -->
	<li class="blockList">
	<section class="methodSummary"><a id="method.summary">
	<!-- -->
	</a>
	<h2>Method Summary</h2>
	<div class="inheritedList">
	<h3>Methods inherited from class java.lang.<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a></h3>
	<a id="methods.inherited.from.class.java.lang.Object">
	<!-- -->
	</a><code><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang" class="externalLink">clone</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang" class="externalLink">equals</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang" class="externalLink">finalize</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang" class="externalLink">getClass</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang" class="externalLink">hashCode</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang" class="externalLink">notify</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang" class="externalLink">notifyAll</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang" class="externalLink">toString</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#wait(long,int)" title="class or interface in java.lang" class="externalLink">wait</a></code></div>
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	<h3><a id="<init>()">BuiltInMetadata</a></h3>
	<div class="memberSignature"><span class="modifiers">public</span> <span class="memberName">BuiltInMetadata</span>()</div>
	</section>
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