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| <h2 title="类 LatticeSuggester" class="title">类 LatticeSuggester</h2> |
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| <pre>public class <span class="typeNameLabel">LatticeSuggester</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">Algorithm that suggests a set of lattices.</div> |
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| <h3>构造器概要</h3> |
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| <tr> |
| <th class="colOne" scope="col">构造器和说明</th> |
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| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/materialize/LatticeSuggester.html#LatticeSuggester-org.apache.calcite.tools.FrameworkConfig-">LatticeSuggester</a></span>(<a href="../../../../org/apache/calcite/tools/FrameworkConfig.html" title="org.apache.calcite.tools中的接口">FrameworkConfig</a> config)</code> |
| <div class="block">Creates a LatticeSuggester.</div> |
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| <h3>方法概要</h3> |
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| <caption><span id="t0" class="activeTableTab"><span>所有方法</span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">实例方法</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">具体方法</a></span><span class="tabEnd"> </span></span></caption> |
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| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><<a href="../../../../org/apache/calcite/materialize/Lattice.html" title="org.apache.calcite.materialize中的类">Lattice</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/materialize/LatticeSuggester.html#addQuery-org.apache.calcite.rel.RelNode-">addQuery</a></span>(<a href="../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> r)</code> |
| <div class="block">Adds a query.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="java.util中的类或接口">Set</a><<a href="../../../../org/apache/calcite/materialize/Lattice.html" title="org.apache.calcite.materialize中的类">Lattice</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/materialize/LatticeSuggester.html#getLatticeSet--">getLatticeSet</a></span>()</code> |
| <div class="block">Returns the minimal set of lattices necessary to cover all of the queries |
| seen.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../org/apache/calcite/rex/RexNode.html" title="org.apache.calcite.rex中的类">RexNode</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/materialize/LatticeSuggester.html#toRex-org.apache.calcite.materialize.LatticeTable-int-">toRex</a></span>(<a href="../../../../org/apache/calcite/materialize/LatticeTable.html" title="org.apache.calcite.materialize中的类">LatticeTable</a> table, |
| int column)</code> |
| <div class="block">Converts a column reference to an expression.</div> |
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| <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> |
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| <h3>构造器详细资料</h3> |
| <a name="LatticeSuggester-org.apache.calcite.tools.FrameworkConfig-"> |
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| <ul class="blockListLast"> |
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| <h4>LatticeSuggester</h4> |
| <pre>public LatticeSuggester(<a href="../../../../org/apache/calcite/tools/FrameworkConfig.html" title="org.apache.calcite.tools中的接口">FrameworkConfig</a> config)</pre> |
| <div class="block">Creates a LatticeSuggester.</div> |
| </li> |
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| <h3>方法详细资料</h3> |
| <a name="getLatticeSet--"> |
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| <h4>getLatticeSet</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="java.util中的类或接口">Set</a><<a href="../../../../org/apache/calcite/materialize/Lattice.html" title="org.apache.calcite.materialize中的类">Lattice</a>> getLatticeSet()</pre> |
| <div class="block">Returns the minimal set of lattices necessary to cover all of the queries |
| seen. Any lattices that are subsumed by other lattices are not included.</div> |
| </li> |
| </ul> |
| <a name="toRex-org.apache.calcite.materialize.LatticeTable-int-"> |
| <!-- --> |
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| <h4>toRex</h4> |
| <pre>public <a href="../../../../org/apache/calcite/rex/RexNode.html" title="org.apache.calcite.rex中的类">RexNode</a> toRex(<a href="../../../../org/apache/calcite/materialize/LatticeTable.html" title="org.apache.calcite.materialize中的类">LatticeTable</a> table, |
| int column)</pre> |
| <div class="block">Converts a column reference to an expression.</div> |
| </li> |
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| <h4>addQuery</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><<a href="../../../../org/apache/calcite/materialize/Lattice.html" title="org.apache.calcite.materialize中的类">Lattice</a>> addQuery(<a href="../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> r)</pre> |
| <div class="block">Adds a query. |
| |
| <p>It may fit within an existing lattice (or lattices). Or it may need a |
| new lattice, or an extension to an existing lattice.</div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>r</code> - Relational expression for a query</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>A list of join graphs: usually 1; more if the query contains a |
| cartesian product; zero if the query graph is cyclic</dd> |
| </dl> |
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