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<div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">org.apache.calcite.rel.rel2sql</a></div>
<h1 title="Class SqlImplementor.Context" class="title">Class SqlImplementor.Context</h1>
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<div class="inheritance">org.apache.calcite.rel.rel2sql.SqlImplementor.Context</div>
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<dl>
<dt>Direct Known Subclasses:</dt>
<dd><code><a href="SqlImplementor.BaseContext.html" title="class in org.apache.calcite.rel.rel2sql">SqlImplementor.BaseContext</a></code>, <code><a href="SqlImplementor.SimpleContext.html" title="class in org.apache.calcite.rel.rel2sql">SqlImplementor.SimpleContext</a></code></dd>
</dl>
<dl>
<dt>Enclosing class:</dt>
<dd><a href="SqlImplementor.html" title="class in org.apache.calcite.rel.rel2sql">SqlImplementor</a></dd>
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<pre>public abstract static class <span class="typeNameLabel">SqlImplementor.Context</span>
extends <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a></pre>
<div class="block">Context for translating a <a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex"><code>RexNode</code></a> expression (within a
<a href="../RelNode.html" title="interface in org.apache.calcite.rel"><code>RelNode</code></a>) into a <a href="../../sql/SqlNode.html" title="class in org.apache.calcite.sql"><code>SqlNode</code></a> expression (within a SQL parse
tree).</div>
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<th class="colFirst" scope="col">Modifier</th>
<th class="colSecond" scope="col">Constructor</th>
<th class="colLast" scope="col">Description</th>
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<tr class="altColor">
<td class="colFirst"><code>protected </code></td>
<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(org.apache.calcite.sql.SqlDialect,int)">Context</a></span>&#8203;(<a href="../../sql/SqlDialect.html" title="class in org.apache.calcite.sql">SqlDialect</a>&nbsp;dialect,
int&nbsp;fieldCount)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected </code></td>
<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(org.apache.calcite.sql.SqlDialect,int,boolean)">Context</a></span>&#8203;(<a href="../../sql/SqlDialect.html" title="class in org.apache.calcite.sql">SqlDialect</a>&nbsp;dialect,
int&nbsp;fieldCount,
boolean&nbsp;ignoreCast)</code></th>
<td class="colLast">&nbsp;</td>
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<h2>Method Summary</h2>
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<div role="tablist" aria-orientation="horizontal"><button role="tab" aria-selected="true" aria-controls="memberSummary_tabpanel" tabindex="0" onkeydown="switchTab(event)" id="t0" class="activeTableTab">All Methods</button><button role="tab" aria-selected="false" aria-controls="memberSummary_tabpanel" tabindex="-1" onkeydown="switchTab(event)" id="t2" class="tableTab" onclick="show(2);">Instance Methods</button><button role="tab" aria-selected="false" aria-controls="memberSummary_tabpanel" tabindex="-1" onkeydown="switchTab(event)" id="t3" class="tableTab" onclick="show(4);">Abstract Methods</button><button role="tab" aria-selected="false" aria-controls="memberSummary_tabpanel" tabindex="-1" onkeydown="switchTab(event)" id="t4" class="tableTab" onclick="show(8);">Concrete Methods</button></div>
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<td class="colFirst"><code>abstract <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="#field(int)">field</a></span>&#8203;(int&nbsp;ordinal)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor" id="i1">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/9/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util" class="externalLink">List</a>&lt;<a href="../../sql/SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#fieldList()">fieldList</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
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<tr class="altColor" id="i2">
<td class="colFirst"><code>protected <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="#getAliasContext(org.apache.calcite.rex.RexCorrelVariable)">getAliasContext</a></span>&#8203;(<a href="../../rex/RexCorrelVariable.html" title="class in org.apache.calcite.rex">RexCorrelVariable</a>&nbsp;variable)</code></th>
<td class="colLast">&nbsp;</td>
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<tr class="rowColor" id="i3">
<td class="colFirst"><code>abstract <a href="SqlImplementor.html" title="class in org.apache.calcite.rel.rel2sql">SqlImplementor</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#implementor()">implementor</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor" id="i4">
<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="#orderField(int)">orderField</a></span>&#8203;(int&nbsp;ordinal)</code></th>
<td class="colLast">
<div class="block">Creates a reference to a field to be used in an ORDER BY clause.</div>
</td>
</tr>
<tr class="rowColor" id="i5">
<td class="colFirst"><code>protected <a href="../../rex/RexCall.html" title="class in org.apache.calcite.rex">RexCall</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#reverseCall(org.apache.calcite.rex.RexCall)">reverseCall</a></span>&#8203;(<a href="../../rex/RexCall.html" title="class in org.apache.calcite.rex">RexCall</a>&nbsp;call)</code></th>
<td class="colLast">
<div class="block">Reverses the order of a call, while preserving semantics, if it improves
readability.</div>
</td>
</tr>
<tr class="altColor" id="i6">
<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="#toSql(org.apache.calcite.rex.RexProgram,org.apache.calcite.rex.RexNode)">toSql</a></span>&#8203;(@Nullable <a href="../../rex/RexProgram.html" title="class in org.apache.calcite.rex">RexProgram</a>&nbsp;program,
<a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;rex)</code></th>
<td class="colLast">
<div class="block">Converts an expression from <a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex"><code>RexNode</code></a> to <a href="../../sql/SqlNode.html" title="class in org.apache.calcite.sql"><code>SqlNode</code></a>
format.</div>
</td>
</tr>
<tr class="rowColor" id="i7">
<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="#toSql(org.apache.calcite.rel.core.AggregateCall)">toSql</a></span>&#8203;(<a href="../core/AggregateCall.html" title="class in org.apache.calcite.rel.core">AggregateCall</a>&nbsp;aggCall)</code></th>
<td class="colLast">
<div class="block">Converts a call to an aggregate function to an expression.</div>
</td>
</tr>
<tr class="altColor" id="i8">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/9/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util" class="externalLink">List</a>&lt;<a href="../../sql/SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#toSql(org.apache.calcite.rel.core.Window.Group,com.google.common.collect.ImmutableList,int)">toSql</a></span>&#8203;(<a href="../core/Window.Group.html" title="class in org.apache.calcite.rel.core">Window.Group</a>&nbsp;group,
com.google.common.collect.ImmutableList&lt;<a href="../../rex/RexLiteral.html" title="class in org.apache.calcite.rex">RexLiteral</a>&gt;&nbsp;constants,
int&nbsp;inputFieldCount)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor" id="i9">
<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="#toSql(org.apache.calcite.rel.RelFieldCollation)">toSql</a></span>&#8203;(<a href="../RelFieldCollation.html" title="class in org.apache.calcite.rel">RelFieldCollation</a>&nbsp;collation)</code></th>
<td class="colLast">
<div class="block">Converts a collation to an ORDER BY item.</div>
</td>
</tr>
<tr class="altColor" id="i10">
<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="#toSql(org.apache.calcite.rex.RexWindowBound)">toSql</a></span>&#8203;(<a href="../../rex/RexWindowBound.html" title="class in org.apache.calcite.rex">RexWindowBound</a>&nbsp;rexWindowBound)</code></th>
<td class="colLast">
<div class="block">Converts an expression from <a href="../../rex/RexWindowBound.html" title="class in org.apache.calcite.rex"><code>RexWindowBound</code></a> to <a href="../../sql/SqlNode.html" title="class in org.apache.calcite.sql"><code>SqlNode</code></a>
format.</div>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div class="inheritedList">
<h3>Methods inherited from class&nbsp;java.lang.<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a></h3>
<a id="methods.inherited.from.class.java.lang.Object">
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</a><code><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang" class="externalLink">clone</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang" class="externalLink">equals</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang" class="externalLink">finalize</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang" class="externalLink">getClass</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang" class="externalLink">hashCode</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang" class="externalLink">notify</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang" class="externalLink">notifyAll</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang" class="externalLink">toString</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#wait(long,int)" title="class or interface in java.lang" class="externalLink">wait</a></code></div>
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<h3><a id="&lt;init&gt;(org.apache.calcite.sql.SqlDialect,int)">Context</a></h3>
<div class="memberSignature"><span class="modifiers">protected</span>&nbsp;<span class="memberName">Context</span>&#8203;(<span class="arguments"><a href="../../sql/SqlDialect.html" title="class in org.apache.calcite.sql">SqlDialect</a>&nbsp;dialect,
int&nbsp;fieldCount)</span></div>
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<h3><a id="&lt;init&gt;(org.apache.calcite.sql.SqlDialect,int,boolean)">Context</a></h3>
<div class="memberSignature"><span class="modifiers">protected</span>&nbsp;<span class="memberName">Context</span>&#8203;(<span class="arguments"><a href="../../sql/SqlDialect.html" title="class in org.apache.calcite.sql">SqlDialect</a>&nbsp;dialect,
int&nbsp;fieldCount,
boolean&nbsp;ignoreCast)</span></div>
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<h3><a id="field(int)">field</a></h3>
<div class="memberSignature"><span class="modifiers">public abstract</span>&nbsp;<span class="returnType"><a href="../../sql/SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a></span>&nbsp;<span class="memberName">field</span>&#8203;(<span class="arguments">int&nbsp;ordinal)</span></div>
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<h3><a id="orderField(int)">orderField</a></h3>
<div class="memberSignature"><span class="modifiers">public</span>&nbsp;<span class="returnType"><a href="../../sql/SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a></span>&nbsp;<span class="memberName">orderField</span>&#8203;(<span class="arguments">int&nbsp;ordinal)</span></div>
<div class="block">Creates a reference to a field to be used in an ORDER BY clause.
<p>By default, it returns the same result as <a href="#field(int)"><code>field(int)</code></a>.
<p>If the field has an alias, uses the alias.
If the field is an unqualified column reference which is the same an
alias, switches to a qualified column reference.</div>
</section>
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<h3><a id="toSql(org.apache.calcite.rex.RexProgram,org.apache.calcite.rex.RexNode)">toSql</a></h3>
<div class="memberSignature"><span class="modifiers">public</span>&nbsp;<span class="returnType"><a href="../../sql/SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a></span>&nbsp;<span class="memberName">toSql</span>&#8203;(<span class="arguments">@Nullable <a href="../../rex/RexProgram.html" title="class in org.apache.calcite.rex">RexProgram</a>&nbsp;program,
<a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;rex)</span></div>
<div class="block">Converts an expression from <a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex"><code>RexNode</code></a> to <a href="../../sql/SqlNode.html" title="class in org.apache.calcite.sql"><code>SqlNode</code></a>
format.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>program</code> - Required only if <code>rex</code> contains <a href="../../rex/RexLocalRef.html" title="class in org.apache.calcite.rex"><code>RexLocalRef</code></a></dd>
<dd><code>rex</code> - Expression to convert</dd>
</dl>
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<section class="detail">
<h3><a id="reverseCall(org.apache.calcite.rex.RexCall)">reverseCall</a></h3>
<div class="memberSignature"><span class="modifiers">protected</span>&nbsp;<span class="returnType"><a href="../../rex/RexCall.html" title="class in org.apache.calcite.rex">RexCall</a></span>&nbsp;<span class="memberName">reverseCall</span>&#8203;(<span class="arguments"><a href="../../rex/RexCall.html" title="class in org.apache.calcite.rex">RexCall</a>&nbsp;call)</span></div>
<div class="block">Reverses the order of a call, while preserving semantics, if it improves
readability.
<p>In the base implementation, this method does nothing;
in a join context, reverses a call such as
"e.deptno = d.deptno" to
"d.deptno = e.deptno"
if "d" is the left input to the join
and "e" is the right.</div>
</section>
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<section class="detail">
<h3><a id="toSql(org.apache.calcite.rex.RexWindowBound)">toSql</a></h3>
<div class="memberSignature"><span class="modifiers">public</span>&nbsp;<span class="returnType"><a href="../../sql/SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a></span>&nbsp;<span class="memberName">toSql</span>&#8203;(<span class="arguments"><a href="../../rex/RexWindowBound.html" title="class in org.apache.calcite.rex">RexWindowBound</a>&nbsp;rexWindowBound)</span></div>
<div class="block">Converts an expression from <a href="../../rex/RexWindowBound.html" title="class in org.apache.calcite.rex"><code>RexWindowBound</code></a> to <a href="../../sql/SqlNode.html" title="class in org.apache.calcite.sql"><code>SqlNode</code></a>
format.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>rexWindowBound</code> - Expression to convert</dd>
</dl>
</section>
</li>
<li class="blockList">
<section class="detail">
<h3><a id="toSql(org.apache.calcite.rel.core.Window.Group,com.google.common.collect.ImmutableList,int)">toSql</a></h3>
<div class="memberSignature"><span class="modifiers">public</span>&nbsp;<span class="returnType"><a href="https://docs.oracle.com/javase/9/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util" class="externalLink">List</a>&lt;<a href="../../sql/SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a>&gt;</span>&nbsp;<span class="memberName">toSql</span>&#8203;(<span class="arguments"><a href="../core/Window.Group.html" title="class in org.apache.calcite.rel.core">Window.Group</a>&nbsp;group,
com.google.common.collect.ImmutableList&lt;<a href="../../rex/RexLiteral.html" title="class in org.apache.calcite.rex">RexLiteral</a>&gt;&nbsp;constants,
int&nbsp;inputFieldCount)</span></div>
</section>
</li>
<li class="blockList">
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<h3><a id="getAliasContext(org.apache.calcite.rex.RexCorrelVariable)">getAliasContext</a></h3>
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<div class="memberSignature"><span class="modifiers">public</span>&nbsp;<span class="returnType"><a href="https://docs.oracle.com/javase/9/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util" class="externalLink">List</a>&lt;<a href="../../sql/SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a>&gt;</span>&nbsp;<span class="memberName">fieldList</span>()</div>
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<h3><a id="toSql(org.apache.calcite.rel.core.AggregateCall)">toSql</a></h3>
<div class="memberSignature"><span class="modifiers">public</span>&nbsp;<span class="returnType"><a href="../../sql/SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a></span>&nbsp;<span class="memberName">toSql</span>&#8203;(<span class="arguments"><a href="../core/AggregateCall.html" title="class in org.apache.calcite.rel.core">AggregateCall</a>&nbsp;aggCall)</span></div>
<div class="block">Converts a call to an aggregate function to an expression.</div>
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<h3><a id="toSql(org.apache.calcite.rel.RelFieldCollation)">toSql</a></h3>
<div class="memberSignature"><span class="modifiers">public</span>&nbsp;<span class="returnType"><a href="../../sql/SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a></span>&nbsp;<span class="memberName">toSql</span>&#8203;(<span class="arguments"><a href="../RelFieldCollation.html" title="class in org.apache.calcite.rel">RelFieldCollation</a>&nbsp;collation)</span></div>
<div class="block">Converts a collation to an ORDER BY item.</div>
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