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| <h1 title="Package" class="title">Package org.apache.calcite.schema</h1> |
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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> |
| </section> |
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| <table class="typeSummary"> |
| <caption><span>Interface Summary</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Interface</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tbody> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="AggregateFunction.html" title="interface in org.apache.calcite.schema">AggregateFunction</a></th> |
| <td class="colLast"> |
| <div class="block">Function that combines several values into a scalar result.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="CustomColumnResolvingTable.html" title="interface in org.apache.calcite.schema">CustomColumnResolvingTable</a></th> |
| <td class="colLast"> |
| <div class="block">Extension to <a href="Table.html" title="interface in org.apache.calcite.schema"><code>Table</code></a> that specifies a custom way to resolve column |
| names.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="ExtensibleTable.html" title="interface in org.apache.calcite.schema">ExtensibleTable</a></th> |
| <td class="colLast"> |
| <div class="block">Table whose row type can be extended to include extra fields.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="FilterableTable.html" title="interface in org.apache.calcite.schema">FilterableTable</a></th> |
| <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"> |
| <th class="colFirst" scope="row"><a href="Function.html" title="interface in org.apache.calcite.schema">Function</a></th> |
| <td class="colLast"> |
| <div class="block">Named expression that accepts parameters and returns a result.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="FunctionParameter.html" title="interface in org.apache.calcite.schema">FunctionParameter</a></th> |
| <td class="colLast"> |
| <div class="block">Parameter to a <a href="Function.html" title="interface in org.apache.calcite.schema"><code>Function</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="ImplementableAggFunction.html" title="interface in org.apache.calcite.schema">ImplementableAggFunction</a></th> |
| <td class="colLast"> |
| <div class="block">Function that can be translated to java code.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="ImplementableFunction.html" title="interface in org.apache.calcite.schema">ImplementableFunction</a></th> |
| <td class="colLast"> |
| <div class="block">Function that can be translated to java code.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="Member.html" title="interface in org.apache.calcite.schema">Member</a></th> |
| <td class="colLast"> |
| <div class="block">A named expression in a schema.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="ModifiableTable.html" title="interface in org.apache.calcite.schema">ModifiableTable</a></th> |
| <td class="colLast"> |
| <div class="block">A table that can be modified.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="ModifiableView.html" title="interface in org.apache.calcite.schema">ModifiableView</a></th> |
| <td class="colLast"> |
| <div class="block">A modifiable view onto <a href="ModifiableTable.html" title="interface in org.apache.calcite.schema"><code>ModifiableTable</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="Path.html" title="interface in org.apache.calcite.schema">Path</a></th> |
| <td class="colLast"> |
| <div class="block">Path from a root schema to a particular object (schema, table, function).</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="ProjectableFilterableTable.html" title="interface in org.apache.calcite.schema">ProjectableFilterableTable</a></th> |
| <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"> |
| <th class="colFirst" scope="row"><a href="QueryableTable.html" title="interface in org.apache.calcite.schema">QueryableTable</a></th> |
| <td class="colLast"> |
| <div class="block">Extension to <a href="Table.html" title="interface in org.apache.calcite.schema"><code>Table</code></a> that can translate itself to a <a href="../linq4j/Queryable.html" title="interface in org.apache.calcite.linq4j"><code>Queryable</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="ScalarFunction.html" title="interface in org.apache.calcite.schema">ScalarFunction</a></th> |
| <td class="colLast"> |
| <div class="block">Function that returns a scalar result.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="ScannableTable.html" title="interface in org.apache.calcite.schema">ScannableTable</a></th> |
| <td class="colLast"> |
| <div class="block">Table that can be scanned without creating an intermediate relational |
| expression.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="Schema.html" title="interface in org.apache.calcite.schema">Schema</a></th> |
| <td class="colLast"> |
| <div class="block">A namespace for tables and functions.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="SchemaFactory.html" title="interface in org.apache.calcite.schema">SchemaFactory</a></th> |
| <td class="colLast"> |
| <div class="block">Factory for <a href="Schema.html" title="interface in org.apache.calcite.schema"><code>Schema</code></a> objects.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="SchemaPlus.html" title="interface in org.apache.calcite.schema">SchemaPlus</a></th> |
| <td class="colLast"> |
| <div class="block">Extension to the <a href="Schema.html" title="interface in org.apache.calcite.schema"><code>Schema</code></a> interface.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="SchemaVersion.html" title="interface in org.apache.calcite.schema">SchemaVersion</a></th> |
| <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"> |
| <th class="colFirst" scope="row"><a href="SemiMutableSchema.html" title="interface in org.apache.calcite.schema">SemiMutableSchema</a></th> |
| <td class="colLast"> |
| <div class="block">Schema to which materializations can be added.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="Statistic.html" title="interface in org.apache.calcite.schema">Statistic</a></th> |
| <td class="colLast"> |
| <div class="block">Statistics about a <a href="Table.html" title="interface in org.apache.calcite.schema"><code>Table</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="StreamableTable.html" title="interface in org.apache.calcite.schema">StreamableTable</a></th> |
| <td class="colLast"> |
| <div class="block">Table that can be converted to a stream.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="Table.html" title="interface in org.apache.calcite.schema">Table</a></th> |
| <td class="colLast"> |
| <div class="block">Table.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="TableFactory.html" title="interface in org.apache.calcite.schema">TableFactory</a><T extends <a href="Table.html" title="interface in org.apache.calcite.schema">Table</a>></th> |
| <td class="colLast"> |
| <div class="block">Factory for <a href="Table.html" title="interface in org.apache.calcite.schema"><code>Table</code></a> objects.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="TableFunction.html" title="interface in org.apache.calcite.schema">TableFunction</a></th> |
| <td class="colLast"> |
| <div class="block">Function that returns a table during execution time.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="TableMacro.html" title="interface in org.apache.calcite.schema">TableMacro</a></th> |
| <td class="colLast"> |
| <div class="block">Function that returns a <a href="Table.html" title="interface in org.apache.calcite.schema"><code>Table</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="TemporalTable.html" title="interface in org.apache.calcite.schema">TemporalTable</a></th> |
| <td class="colLast"> |
| <div class="block">Table that is temporal.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="TransientTable.html" title="interface in org.apache.calcite.schema">TransientTable</a></th> |
| <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"> |
| <th class="colFirst" scope="row"><a href="TranslatableTable.html" title="interface in org.apache.calcite.schema">TranslatableTable</a></th> |
| <td class="colLast"> |
| <div class="block">Extension to <a href="Table.html" title="interface in org.apache.calcite.schema"><code>Table</code></a> that specifies how it is to be translated to |
| a <a href="../rel/RelNode.html" title="interface in org.apache.calcite.rel"><code>relational expression</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="Wrapper.html" title="interface in org.apache.calcite.schema">Wrapper</a></th> |
| <td class="colLast"> |
| <div class="block">Mix-in interface that allows you to find sub-objects.</div> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| </li> |
| <li class="blockList"> |
| <table class="typeSummary"> |
| <caption><span>Class Summary</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Class</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tbody> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="Schemas.html" title="class in org.apache.calcite.schema">Schemas</a></th> |
| <td class="colLast"> |
| <div class="block">Utility functions for schemas.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="Schemas.DummyDataContext.html" title="class in org.apache.calcite.schema">Schemas.DummyDataContext</a></th> |
| <td class="colLast"> |
| <div class="block">Dummy data context that has no variables.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="Schemas.PathImpl.html" title="class in org.apache.calcite.schema">Schemas.PathImpl</a></th> |
| <td class="colLast"> |
| <div class="block">Implementation of <a href="Path.html" title="interface in org.apache.calcite.schema"><code>Path</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="Statistics.html" title="class in org.apache.calcite.schema">Statistics</a></th> |
| <td class="colLast"> |
| <div class="block">Utility functions regarding <a href="Statistic.html" title="interface in org.apache.calcite.schema"><code>Statistic</code></a>.</div> |
| </td> |
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| </tbody> |
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| <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> |
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| <tr class="altColor"> |
| <th class="colFirst" scope="row"><a href="ColumnStrategy.html" title="enum in org.apache.calcite.schema">ColumnStrategy</a></th> |
| <td class="colLast"> |
| <div class="block">Describes how a column gets populated.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <th class="colFirst" scope="row"><a href="Schema.TableType.html" title="enum in org.apache.calcite.schema">Schema.TableType</a></th> |
| <td class="colLast"> |
| <div class="block">Table type.</div> |
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