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| <li>Summary: </li> |
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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.calcite.rel.rel2sql</a></div> |
| <h2 title="Class SqlImplementor.Result" class="title">Class SqlImplementor.Result</h2> |
| </div> |
| <div class="contentContainer"> |
| <ul class="inheritance"> |
| <li>java.lang.Object</li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.calcite.rel.rel2sql.SqlImplementor.Result</li> |
| </ul> |
| </li> |
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| <dl> |
| <dt>Enclosing class:</dt> |
| <dd><a href="SqlImplementor.html" title="class in org.apache.calcite.rel.rel2sql">SqlImplementor</a></dd> |
| </dl> |
| <hr> |
| <pre>public class <span class="typeNameLabel">SqlImplementor.Result</span> |
| extends java.lang.Object</pre> |
| <div class="block">Result of implementing a node.</div> |
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| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Field</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private java.util.Map<java.lang.String,​<a href="../type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#aliases">aliases</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>(package private) <a href="../../linq4j/tree/Expressions.FluentList.html" title="interface in org.apache.calcite.linq4j.tree">Expressions.FluentList</a><<a href="SqlImplementor.Clause.html" title="enum in org.apache.calcite.rel.rel2sql">SqlImplementor.Clause</a>></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#clauses">clauses</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private java.lang.String</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#neededAlias">neededAlias</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private <a href="../type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#neededType">neededType</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>(package private) <a href="../../sql/SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#node">node</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| </table> |
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| <th class="colFirst" scope="col">Constructor</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr class="altColor"> |
| <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(org.apache.calcite.sql.SqlNode,java.util.Collection,java.lang.String,org.apache.calcite.rel.type.RelDataType,java.util.Map)">Result</a></span>​(<a href="../../sql/SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a> node, |
| java.util.Collection<<a href="SqlImplementor.Clause.html" title="enum in org.apache.calcite.rel.rel2sql">SqlImplementor.Clause</a>> clauses, |
| java.lang.String neededAlias, |
| <a href="../type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> neededType, |
| java.util.Map<java.lang.String,​<a href="../type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>> aliases)</code></th> |
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| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Method</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code><a href="../../sql/SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#asFrom()">asFrom</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns a node that can be included in the FROM clause or a JOIN.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><a href="../../sql/SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#asQueryOrValues()">asQueryOrValues</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Converts a non-query node into a SELECT node.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><a href="../../sql/SqlSelect.html" title="class in org.apache.calcite.sql">SqlSelect</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#asSelect()">asSelect</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Converts a non-query node into a SELECT node.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code><a href="../../sql/SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#asStatement()">asStatement</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Converts a non-query node into a SELECT node.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code><a href="SqlImplementor.Builder.html" title="class in org.apache.calcite.rel.rel2sql">SqlImplementor.Builder</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#builder(org.apache.calcite.rel.RelNode,org.apache.calcite.rel.rel2sql.SqlImplementor.Clause...)">builder</a></span>​(<a href="../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> rel, |
| <a href="SqlImplementor.Clause.html" title="enum in org.apache.calcite.rel.rel2sql">SqlImplementor.Clause</a>... clauses)</code></th> |
| <td class="colLast"> |
| <div class="block">Once you have a Result of implementing a child relational expression, |
| call this method to create a Builder to implement the current relational |
| expression by adding additional clauses to the SQL query.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>private boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#hasNestedAggregations(org.apache.calcite.rel.logical.LogicalAggregate)">hasNestedAggregations</a></span>​(<a href="../logical/LogicalAggregate.html" title="class in org.apache.calcite.rel.logical">LogicalAggregate</a> rel)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code><a href="SqlImplementor.Clause.html" title="enum in org.apache.calcite.rel.rel2sql">SqlImplementor.Clause</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#maxClause()">maxClause</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code><a href="SqlImplementor.Context.html" title="class in org.apache.calcite.rel.rel2sql">SqlImplementor.Context</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#qualifiedContext()">qualifiedContext</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns a context that always qualifies identifiers.</div> |
| </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code><a href="SqlImplementor.Result.html" title="class in org.apache.calcite.rel.rel2sql">SqlImplementor.Result</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#resetAlias()">resetAlias</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">In join, when the left and right nodes have been generated, |
| update their alias with 'neededAlias' if not null.</div> |
| </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code><a href="../../sql/SqlSelect.html" title="class in org.apache.calcite.sql">SqlSelect</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#subSelect()">subSelect</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a id="methods.inherited.from.class.java.lang.Object"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from class java.lang.Object</h3> |
| <code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
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| <li class="blockList"> |
| <!-- ============ FIELD DETAIL =========== --> |
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| <h3>Field Detail</h3> |
| <a id="node"> |
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| <h4>node</h4> |
| <pre>final <a href="../../sql/SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a> node</pre> |
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| </ul> |
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| <h4>neededAlias</h4> |
| <pre>private final java.lang.String neededAlias</pre> |
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| </a> |
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| <h4>neededType</h4> |
| <pre>private final <a href="../type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> neededType</pre> |
| </li> |
| </ul> |
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| <h4>aliases</h4> |
| <pre>private final java.util.Map<java.lang.String,​<a href="../type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>> aliases</pre> |
| </li> |
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| <a id="clauses"> |
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| </a> |
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| <h4>clauses</h4> |
| <pre>final <a href="../../linq4j/tree/Expressions.FluentList.html" title="interface in org.apache.calcite.linq4j.tree">Expressions.FluentList</a><<a href="SqlImplementor.Clause.html" title="enum in org.apache.calcite.rel.rel2sql">SqlImplementor.Clause</a>> clauses</pre> |
| </li> |
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| </li> |
| </ul> |
| </section> |
| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| <section role="region"> |
| <ul class="blockList"> |
| <li class="blockList"><a id="constructor.detail"> |
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| </a> |
| <h3>Constructor Detail</h3> |
| <a id="<init>(org.apache.calcite.sql.SqlNode,java.util.Collection,java.lang.String,org.apache.calcite.rel.type.RelDataType,java.util.Map)"> |
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| <h4>Result</h4> |
| <pre>public Result​(<a href="../../sql/SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a> node, |
| java.util.Collection<<a href="SqlImplementor.Clause.html" title="enum in org.apache.calcite.rel.rel2sql">SqlImplementor.Clause</a>> clauses, |
| java.lang.String neededAlias, |
| <a href="../type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> neededType, |
| java.util.Map<java.lang.String,​<a href="../type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>> aliases)</pre> |
| </li> |
| </ul> |
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| <h3>Method Detail</h3> |
| <a id="builder(org.apache.calcite.rel.RelNode,org.apache.calcite.rel.rel2sql.SqlImplementor.Clause...)"> |
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| </a> |
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| <h4>builder</h4> |
| <pre class="methodSignature">public <a href="SqlImplementor.Builder.html" title="class in org.apache.calcite.rel.rel2sql">SqlImplementor.Builder</a> builder​(<a href="../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> rel, |
| <a href="SqlImplementor.Clause.html" title="enum in org.apache.calcite.rel.rel2sql">SqlImplementor.Clause</a>... clauses)</pre> |
| <div class="block">Once you have a Result of implementing a child relational expression, |
| call this method to create a Builder to implement the current relational |
| expression by adding additional clauses to the SQL query. |
| |
| <p>You need to declare which clauses you intend to add. If the clauses |
| are "later", you can add to the same query. For example, "GROUP BY" comes |
| after "WHERE". But if they are the same or earlier, this method will |
| start a new SELECT that wraps the previous result. |
| |
| <p>When you have called |
| <a href="SqlImplementor.Builder.html#setSelect(org.apache.calcite.sql.SqlNodeList)"><code>SqlImplementor.Builder.setSelect(SqlNodeList)</code></a>, |
| <a href="SqlImplementor.Builder.html#setWhere(org.apache.calcite.sql.SqlNode)"><code>SqlImplementor.Builder.setWhere(SqlNode)</code></a> etc. call |
| <a href="SqlImplementor.html#result(org.apache.calcite.sql.SqlNode,java.util.Collection,org.apache.calcite.rel.RelNode,java.util.Map)"><code>SqlImplementor.result(SqlNode, Collection, RelNode, Map)</code></a> |
| to fix the new query.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>rel</code> - Relational expression being implemented</dd> |
| <dd><code>clauses</code> - Clauses that will be generated to implement current |
| relational expression</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>A builder</dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>hasNestedAggregations</h4> |
| <pre class="methodSignature">private boolean hasNestedAggregations​(<a href="../logical/LogicalAggregate.html" title="class in org.apache.calcite.rel.logical">LogicalAggregate</a> rel)</pre> |
| </li> |
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| <h4>maxClause</h4> |
| <pre class="methodSignature">public <a href="SqlImplementor.Clause.html" title="enum in org.apache.calcite.rel.rel2sql">SqlImplementor.Clause</a> maxClause()</pre> |
| </li> |
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| <h4>asFrom</h4> |
| <pre class="methodSignature">public <a href="../../sql/SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a> asFrom()</pre> |
| <div class="block">Returns a node that can be included in the FROM clause or a JOIN. It has |
| an alias that is unique within the query. The alias is implicit if it |
| can be derived using the usual rules (For example, "SELECT * FROM emp" is |
| equivalent to "SELECT * FROM emp AS emp".)</div> |
| </li> |
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| <h4>subSelect</h4> |
| <pre class="methodSignature">public <a href="../../sql/SqlSelect.html" title="class in org.apache.calcite.sql">SqlSelect</a> subSelect()</pre> |
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| <pre class="methodSignature">public <a href="../../sql/SqlSelect.html" title="class in org.apache.calcite.sql">SqlSelect</a> asSelect()</pre> |
| <div class="block">Converts a non-query node into a SELECT node. Set operators (UNION, |
| INTERSECT, EXCEPT) remain as is.</div> |
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| <pre class="methodSignature">public <a href="../../sql/SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a> asStatement()</pre> |
| <div class="block">Converts a non-query node into a SELECT node. Set operators (UNION, |
| INTERSECT, EXCEPT) and DML operators (INSERT, UPDATE, DELETE, MERGE) |
| remain as is.</div> |
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| <div class="block">Converts a non-query node into a SELECT node. Set operators (UNION, |
| INTERSECT, EXCEPT) and VALUES remain as is.</div> |
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| <div class="block">Returns a context that always qualifies identifiers. Useful if the |
| Context deals with just one arm of a join, yet we wish to generate |
| a join condition that qualifies column names to disambiguate them.</div> |
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| <div class="block">In join, when the left and right nodes have been generated, |
| update their alias with 'neededAlias' if not null.</div> |
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