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| <h2 title="Class RelOptMaterializations" class="title">Class RelOptMaterializations</h2> |
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| <pre>public abstract class <span class="typeNameLabel">RelOptMaterializations</span> |
| extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre> |
| <div class="block">Utility methods for using |
| materialized views and lattices for queries.</div> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/plan/RelOptMaterializations.html#RelOptMaterializations--">RelOptMaterializations</a></span>()</code> </td> |
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| <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../org/apache/calcite/plan/RelOptMaterialization.html" title="class in org.apache.calcite.plan">RelOptMaterialization</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/plan/RelOptMaterializations.html#getApplicableMaterializations-org.apache.calcite.rel.RelNode-java.util.List-">getApplicableMaterializations</a></span>(<a href="../../../../org/apache/calcite/rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> rel, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../org/apache/calcite/plan/RelOptMaterialization.html" title="class in org.apache.calcite.plan">RelOptMaterialization</a>> materializations)</code> |
| <div class="block">Returns a list of materializations that can potentially be used by the query.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../org/apache/calcite/util/Pair.html" title="class in org.apache.calcite.util">Pair</a><<a href="../../../../org/apache/calcite/rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>,<a href="../../../../org/apache/calcite/plan/RelOptLattice.html" title="class in org.apache.calcite.plan">RelOptLattice</a>>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/plan/RelOptMaterializations.html#useLattices-org.apache.calcite.rel.RelNode-java.util.List-">useLattices</a></span>(<a href="../../../../org/apache/calcite/rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> rel, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../org/apache/calcite/plan/RelOptLattice.html" title="class in org.apache.calcite.plan">RelOptLattice</a>> lattices)</code> |
| <div class="block">Returns a list of RelNode transformed from all possible lattice uses.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../org/apache/calcite/util/Pair.html" title="class in org.apache.calcite.util">Pair</a><<a href="../../../../org/apache/calcite/rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../org/apache/calcite/plan/RelOptMaterialization.html" title="class in org.apache.calcite.plan">RelOptMaterialization</a>>>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/plan/RelOptMaterializations.html#useMaterializedViews-org.apache.calcite.rel.RelNode-java.util.List-">useMaterializedViews</a></span>(<a href="../../../../org/apache/calcite/rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> rel, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../org/apache/calcite/plan/RelOptMaterialization.html" title="class in org.apache.calcite.plan">RelOptMaterialization</a>> materializations)</code> |
| <div class="block">Returns a list of RelNode transformed from all possible combination of |
| materialized view uses.</div> |
| </td> |
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| <h4>RelOptMaterializations</h4> |
| <pre>public RelOptMaterializations()</pre> |
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| <h4>useMaterializedViews</h4> |
| <pre>public static <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../org/apache/calcite/util/Pair.html" title="class in org.apache.calcite.util">Pair</a><<a href="../../../../org/apache/calcite/rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../org/apache/calcite/plan/RelOptMaterialization.html" title="class in org.apache.calcite.plan">RelOptMaterialization</a>>>> useMaterializedViews(<a href="../../../../org/apache/calcite/rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> rel, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../org/apache/calcite/plan/RelOptMaterialization.html" title="class in org.apache.calcite.plan">RelOptMaterialization</a>> materializations)</pre> |
| <div class="block">Returns a list of RelNode transformed from all possible combination of |
| materialized view uses. Big queries will likely have more than one |
| transformed RelNode, e.g., (t1 group by c1) join (t2 group by c2).</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>rel</code> - the original RelNode</dd> |
| <dd><code>materializations</code> - the materialized view list</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the list of transformed RelNode together with their corresponding |
| materialized views used in the transformation.</dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>useLattices</h4> |
| <pre>public static <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../org/apache/calcite/util/Pair.html" title="class in org.apache.calcite.util">Pair</a><<a href="../../../../org/apache/calcite/rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>,<a href="../../../../org/apache/calcite/plan/RelOptLattice.html" title="class in org.apache.calcite.plan">RelOptLattice</a>>> useLattices(<a href="../../../../org/apache/calcite/rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> rel, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../org/apache/calcite/plan/RelOptLattice.html" title="class in org.apache.calcite.plan">RelOptLattice</a>> lattices)</pre> |
| <div class="block">Returns a list of RelNode transformed from all possible lattice uses.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>rel</code> - the original RelNode</dd> |
| <dd><code>lattices</code> - the lattice list</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the list of transformed RelNode together with their corresponding |
| lattice used in the transformation.</dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>getApplicableMaterializations</h4> |
| <pre>public static <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../org/apache/calcite/plan/RelOptMaterialization.html" title="class in org.apache.calcite.plan">RelOptMaterialization</a>> getApplicableMaterializations(<a href="../../../../org/apache/calcite/rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> rel, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../org/apache/calcite/plan/RelOptMaterialization.html" title="class in org.apache.calcite.plan">RelOptMaterialization</a>> materializations)</pre> |
| <div class="block">Returns a list of materializations that can potentially be used by the query.</div> |
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