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| <div class="subTitle">org.apache.calcite.rel.metadata</div> |
| <h2 title="类 BuiltInMetadata" class="title">类 BuiltInMetadata</h2> |
| </div> |
| <div class="contentContainer"> |
| <ul class="inheritance"> |
| <li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="java.lang中的类或接口">java.lang.Object</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.calcite.rel.metadata.BuiltInMetadata</li> |
| </ul> |
| </li> |
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| <div class="description"> |
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| <pre>public abstract class <span class="typeNameLabel">BuiltInMetadata</span> |
| extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="java.lang中的类或接口">Object</a></pre> |
| <div class="block">Contains the interfaces for several common forms of metadata.</div> |
| </li> |
| </ul> |
| </div> |
| <div class="summary"> |
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| <!-- ======== NESTED CLASS SUMMARY ======== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="nested.class.summary"> |
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| </a> |
| <h3>嵌套类概要</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="嵌套类概要表, 列表嵌套类和解释"> |
| <caption><span>嵌套类</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">限定符和类型</th> |
| <th class="colLast" scope="col">类和说明</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static interface </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.AllPredicates.html" title="org.apache.calcite.rel.metadata中的接口">BuiltInMetadata.AllPredicates</a></span></code> |
| <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> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.Collation.html" title="org.apache.calcite.rel.metadata中的接口">BuiltInMetadata.Collation</a></span></code> |
| <div class="block">Metadata about which columns are sorted.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static interface </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.ColumnOrigin.html" title="org.apache.calcite.rel.metadata中的接口">BuiltInMetadata.ColumnOrigin</a></span></code> |
| <div class="block">Metadata about the origins of columns.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static interface </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.ColumnUniqueness.html" title="org.apache.calcite.rel.metadata中的接口">BuiltInMetadata.ColumnUniqueness</a></span></code> |
| <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> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.CumulativeCost.html" title="org.apache.calcite.rel.metadata中的接口">BuiltInMetadata.CumulativeCost</a></span></code> |
| <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> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.DistinctRowCount.html" title="org.apache.calcite.rel.metadata中的接口">BuiltInMetadata.DistinctRowCount</a></span></code> |
| <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> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.Distribution.html" title="org.apache.calcite.rel.metadata中的接口">BuiltInMetadata.Distribution</a></span></code> |
| <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> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.ExplainVisibility.html" title="org.apache.calcite.rel.metadata中的接口">BuiltInMetadata.ExplainVisibility</a></span></code> |
| <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> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.ExpressionLineage.html" title="org.apache.calcite.rel.metadata中的接口">BuiltInMetadata.ExpressionLineage</a></span></code> |
| <div class="block">Metadata about the origins of expressions.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static interface </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.MaxRowCount.html" title="org.apache.calcite.rel.metadata中的接口">BuiltInMetadata.MaxRowCount</a></span></code> |
| <div class="block">Metadata about the maximum number of rows returned by a relational |
| expression.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static interface </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.Memory.html" title="org.apache.calcite.rel.metadata中的接口">BuiltInMetadata.Memory</a></span></code> |
| <div class="block">Metadata about the memory use of an operator.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static interface </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.MinRowCount.html" title="org.apache.calcite.rel.metadata中的接口">BuiltInMetadata.MinRowCount</a></span></code> |
| <div class="block">Metadata about the minimum number of rows returned by a relational |
| expression.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static interface </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.NodeTypes.html" title="org.apache.calcite.rel.metadata中的接口">BuiltInMetadata.NodeTypes</a></span></code> |
| <div class="block">Metadata about the node types in a relational expression.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static interface </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.NonCumulativeCost.html" title="org.apache.calcite.rel.metadata中的接口">BuiltInMetadata.NonCumulativeCost</a></span></code> |
| <div class="block">Metadata about the cost of evaluating a relational expression, not |
| including its inputs.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static interface </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.Parallelism.html" title="org.apache.calcite.rel.metadata中的接口">BuiltInMetadata.Parallelism</a></span></code> |
| <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"><code>static interface </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.PercentageOriginalRows.html" title="org.apache.calcite.rel.metadata中的接口">BuiltInMetadata.PercentageOriginalRows</a></span></code> |
| <div class="block">Metadata about the proportion of original rows that remain in a relational |
| expression.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static interface </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.PopulationSize.html" title="org.apache.calcite.rel.metadata中的接口">BuiltInMetadata.PopulationSize</a></span></code> |
| <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"><code>static interface </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.Predicates.html" title="org.apache.calcite.rel.metadata中的接口">BuiltInMetadata.Predicates</a></span></code> |
| <div class="block">Metadata about the predicates that hold in the rows emitted from a |
| relational expression.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static interface </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.RowCount.html" title="org.apache.calcite.rel.metadata中的接口">BuiltInMetadata.RowCount</a></span></code> |
| <div class="block">Metadata about the number of rows returned by a relational expression.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static interface </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.Selectivity.html" title="org.apache.calcite.rel.metadata中的接口">BuiltInMetadata.Selectivity</a></span></code> |
| <div class="block">Metadata about the selectivity of a predicate.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static interface </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.Size.html" title="org.apache.calcite.rel.metadata中的接口">BuiltInMetadata.Size</a></span></code> |
| <div class="block">Metadata about the size of rows and columns.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static interface </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.TableReferences.html" title="org.apache.calcite.rel.metadata中的接口">BuiltInMetadata.TableReferences</a></span></code> |
| <div class="block">Metadata to obtain references to tables used by a given expression.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static interface </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.UniqueKeys.html" title="org.apache.calcite.rel.metadata中的接口">BuiltInMetadata.UniqueKeys</a></span></code> |
| <div class="block">Metadata about which combinations of columns are unique identifiers.</div> |
| </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="constructor.summary"> |
| <!-- --> |
| </a> |
| <h3>构造器概要</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="构造器概要表, 列表构造器和解释"> |
| <caption><span>构造器</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colOne" scope="col">构造器和说明</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/metadata/BuiltInMetadata.html#BuiltInMetadata--">BuiltInMetadata</a></span>()</code> </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| <!-- ========== METHOD SUMMARY =========== --> |
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| <!-- --> |
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| <h3>从类继承的方法 java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="java.lang中的类或接口">Object</a></h3> |
| <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="java.lang中的类或接口">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="java.lang中的类或接口">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="java.lang中的类或接口">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="java.lang中的类或接口">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="java.lang中的类或接口">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="java.lang中的类或接口">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="java.lang中的类或接口">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="java.lang中的类或接口">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="java.lang中的类或接口">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="java.lang中的类或接口">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="java.lang中的类或接口">wait</a></code></li> |
| </ul> |
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| <h4>BuiltInMetadata</h4> |
| <pre>public BuiltInMetadata()</pre> |
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