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| <h1 title="程序包" class="title">程序包 org.apache.calcite.schema</h1> |
| <div class="docSummary"> |
| <div class="block">Schema SPI.</div> |
| </div> |
| <p>请参阅: <a href="#package.description">说明</a></p> |
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| <table class="typeSummary" border="0" cellpadding="3" cellspacing="0" summary="接口概要表, 列表接口和解释"> |
| <caption><span>接口概要</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">接口</th> |
| <th class="colLast" scope="col">说明</th> |
| </tr> |
| <tbody> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../org/apache/calcite/schema/AggregateFunction.html" title="org.apache.calcite.schema中的接口">AggregateFunction</a></td> |
| <td class="colLast"> |
| <div class="block">Function that combines several values into a scalar result.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../org/apache/calcite/schema/CustomColumnResolvingTable.html" title="org.apache.calcite.schema中的接口">CustomColumnResolvingTable</a></td> |
| <td class="colLast"> |
| <div class="block">Extension to <a href="../../../../org/apache/calcite/schema/Table.html" title="org.apache.calcite.schema中的接口"><code>Table</code></a> that specifies a custom way to resolve column |
| names.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../org/apache/calcite/schema/ExtensibleTable.html" title="org.apache.calcite.schema中的接口">ExtensibleTable</a></td> |
| <td class="colLast"> |
| <div class="block">Table whose row type can be extended to include extra fields.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../org/apache/calcite/schema/FilterableTable.html" title="org.apache.calcite.schema中的接口">FilterableTable</a></td> |
| <td class="colLast"> |
| <div class="block">Table that can be scanned, optionally applying supplied filter expressions, |
| without creating an intermediate relational expression.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../org/apache/calcite/schema/Function.html" title="org.apache.calcite.schema中的接口">Function</a></td> |
| <td class="colLast"> |
| <div class="block">Named expression that accepts parameters and returns a result.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../org/apache/calcite/schema/FunctionParameter.html" title="org.apache.calcite.schema中的接口">FunctionParameter</a></td> |
| <td class="colLast"> |
| <div class="block">Parameter to a <a href="../../../../org/apache/calcite/schema/Function.html" title="org.apache.calcite.schema中的接口"><code>Function</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../org/apache/calcite/schema/ImplementableAggFunction.html" title="org.apache.calcite.schema中的接口">ImplementableAggFunction</a></td> |
| <td class="colLast"> |
| <div class="block">Function that can be translated to java code.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../org/apache/calcite/schema/ImplementableFunction.html" title="org.apache.calcite.schema中的接口">ImplementableFunction</a></td> |
| <td class="colLast"> |
| <div class="block">Function that can be translated to java code.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../org/apache/calcite/schema/Member.html" title="org.apache.calcite.schema中的接口">Member</a></td> |
| <td class="colLast"> |
| <div class="block">A named expression in a schema.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../org/apache/calcite/schema/ModifiableTable.html" title="org.apache.calcite.schema中的接口">ModifiableTable</a></td> |
| <td class="colLast"> |
| <div class="block">A table that can be modified.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../org/apache/calcite/schema/ModifiableView.html" title="org.apache.calcite.schema中的接口">ModifiableView</a></td> |
| <td class="colLast"> |
| <div class="block">A modifiable view onto <a href="../../../../org/apache/calcite/schema/ModifiableTable.html" title="org.apache.calcite.schema中的接口"><code>ModifiableTable</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../org/apache/calcite/schema/Path.html" title="org.apache.calcite.schema中的接口">Path</a></td> |
| <td class="colLast"> |
| <div class="block">Path from a root schema to a particular object (schema, table, function).</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../org/apache/calcite/schema/ProjectableFilterableTable.html" title="org.apache.calcite.schema中的接口">ProjectableFilterableTable</a></td> |
| <td class="colLast"> |
| <div class="block">Table that can be scanned, optionally applying supplied filter expressions, |
| and projecting a given list of columns, |
| without creating an intermediate relational expression.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../org/apache/calcite/schema/QueryableTable.html" title="org.apache.calcite.schema中的接口">QueryableTable</a></td> |
| <td class="colLast"> |
| <div class="block">Extension to <a href="../../../../org/apache/calcite/schema/Table.html" title="org.apache.calcite.schema中的接口"><code>Table</code></a> that can translate itself to a <a href="../../../../org/apache/calcite/linq4j/Queryable.html" title="org.apache.calcite.linq4j中的接口"><code>Queryable</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../org/apache/calcite/schema/ScalarFunction.html" title="org.apache.calcite.schema中的接口">ScalarFunction</a></td> |
| <td class="colLast"> |
| <div class="block">Function that returns a scalar result.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../org/apache/calcite/schema/ScannableTable.html" title="org.apache.calcite.schema中的接口">ScannableTable</a></td> |
| <td class="colLast"> |
| <div class="block">Table that can be scanned without creating an intermediate relational |
| expression.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../org/apache/calcite/schema/Schema.html" title="org.apache.calcite.schema中的接口">Schema</a></td> |
| <td class="colLast"> |
| <div class="block">A namespace for tables and functions.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../org/apache/calcite/schema/SchemaFactory.html" title="org.apache.calcite.schema中的接口">SchemaFactory</a></td> |
| <td class="colLast"> |
| <div class="block">Factory for <a href="../../../../org/apache/calcite/schema/Schema.html" title="org.apache.calcite.schema中的接口"><code>Schema</code></a> objects.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../org/apache/calcite/schema/SchemaPlus.html" title="org.apache.calcite.schema中的接口">SchemaPlus</a></td> |
| <td class="colLast"> |
| <div class="block">Extension to the <a href="../../../../org/apache/calcite/schema/Schema.html" title="org.apache.calcite.schema中的接口"><code>Schema</code></a> interface.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../org/apache/calcite/schema/SchemaVersion.html" title="org.apache.calcite.schema中的接口">SchemaVersion</a></td> |
| <td class="colLast"> |
| <div class="block">An interface to represent a version ID that can be used to create a |
| read-consistent view of a Schema.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../org/apache/calcite/schema/SemiMutableSchema.html" title="org.apache.calcite.schema中的接口">SemiMutableSchema</a></td> |
| <td class="colLast"> |
| <div class="block">Schema to which materializations can be added.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../org/apache/calcite/schema/Statistic.html" title="org.apache.calcite.schema中的接口">Statistic</a></td> |
| <td class="colLast"> |
| <div class="block">Statistics about a <a href="../../../../org/apache/calcite/schema/Table.html" title="org.apache.calcite.schema中的接口"><code>Table</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../org/apache/calcite/schema/StreamableTable.html" title="org.apache.calcite.schema中的接口">StreamableTable</a></td> |
| <td class="colLast"> |
| <div class="block">Table that can be converted to a stream.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../org/apache/calcite/schema/Table.html" title="org.apache.calcite.schema中的接口">Table</a></td> |
| <td class="colLast"> |
| <div class="block">Table.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../org/apache/calcite/schema/TableFactory.html" title="org.apache.calcite.schema中的接口">TableFactory</a><T extends <a href="../../../../org/apache/calcite/schema/Table.html" title="org.apache.calcite.schema中的接口">Table</a>></td> |
| <td class="colLast"> |
| <div class="block">Factory for <a href="../../../../org/apache/calcite/schema/Table.html" title="org.apache.calcite.schema中的接口"><code>Table</code></a> objects.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../org/apache/calcite/schema/TableFunction.html" title="org.apache.calcite.schema中的接口">TableFunction</a></td> |
| <td class="colLast"> |
| <div class="block">Function that returns a table during execution time.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../org/apache/calcite/schema/TableMacro.html" title="org.apache.calcite.schema中的接口">TableMacro</a></td> |
| <td class="colLast"> |
| <div class="block">Function that returns a <a href="../../../../org/apache/calcite/schema/Table.html" title="org.apache.calcite.schema中的接口"><code>Table</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../org/apache/calcite/schema/TemporalTable.html" title="org.apache.calcite.schema中的接口">TemporalTable</a></td> |
| <td class="colLast"> |
| <div class="block">Table that is temporal.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../org/apache/calcite/schema/TransientTable.html" title="org.apache.calcite.schema中的接口">TransientTable</a></td> |
| <td class="colLast"> |
| <div class="block">A transient table is a named table that may come into existence implicitly during the |
| evaluation of a query expression or the execution of a trigger.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../org/apache/calcite/schema/TranslatableTable.html" title="org.apache.calcite.schema中的接口">TranslatableTable</a></td> |
| <td class="colLast"> |
| <div class="block">Extension to <a href="../../../../org/apache/calcite/schema/Table.html" title="org.apache.calcite.schema中的接口"><code>Table</code></a> that specifies how it is to be translated to |
| a <a href="../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口"><code>relational expression</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../org/apache/calcite/schema/Wrapper.html" title="org.apache.calcite.schema中的接口">Wrapper</a></td> |
| <td class="colLast"> |
| <div class="block">Mix-in interface that allows you to find sub-objects.</div> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
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| <th class="colFirst" scope="col">类</th> |
| <th class="colLast" scope="col">说明</th> |
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| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../org/apache/calcite/schema/Schemas.html" title="org.apache.calcite.schema中的类">Schemas</a></td> |
| <td class="colLast"> |
| <div class="block">Utility functions for schemas.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../org/apache/calcite/schema/Statistics.html" title="org.apache.calcite.schema中的类">Statistics</a></td> |
| <td class="colLast"> |
| <div class="block">Utility functions regarding <a href="../../../../org/apache/calcite/schema/Statistic.html" title="org.apache.calcite.schema中的接口"><code>Statistic</code></a>.</div> |
| </td> |
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| <tr> |
| <th class="colFirst" scope="col">枚举</th> |
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| <td class="colFirst"><a href="../../../../org/apache/calcite/schema/ColumnStrategy.html" title="org.apache.calcite.schema中的枚举">ColumnStrategy</a></td> |
| <td class="colLast"> |
| <div class="block">Describes how a column gets populated.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../org/apache/calcite/schema/Schema.TableType.html" title="org.apache.calcite.schema中的枚举">Schema.TableType</a></td> |
| <td class="colLast"> |
| <div class="block">Table type.</div> |
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| <div class="block">Schema SPI. |
| |
| <p>The interfaces in this package define the objects used by the |
| SQL validator to validate SQL abstract syntax trees and resolve |
| identifiers to objects.</div> |
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