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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.calcite.adapter.druid</a></div> |
| <h1 title="Class ExtractOperatorConversion" class="title">Class ExtractOperatorConversion</h1> |
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| <dd><code><a href="DruidSqlOperatorConverter.html" title="interface in org.apache.calcite.adapter.druid">DruidSqlOperatorConverter</a></code></dd> |
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| <pre>public class <span class="typeNameLabel">ExtractOperatorConversion</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> |
| implements <a href="DruidSqlOperatorConverter.html" title="interface in org.apache.calcite.adapter.druid">DruidSqlOperatorConverter</a></pre> |
| <div class="block">Time extract operator conversion for expressions like |
| <code>EXTRACT(timeUnit FROM arg)</code>. |
| |
| <p>Unit can be SECOND, MINUTE, HOUR, DAY (day of month), DOW (day of week), |
| DOY (day of year), WEEK (week of week year), MONTH (1 through 12), QUARTER (1 |
| through 4), or YEAR.</div> |
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| <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E()">ExtractOperatorConversion</a></span>()</code></th> |
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| <td class="colFirst"><code><a href="../../sql/SqlOperator.html" title="class in org.apache.calcite.sql">SqlOperator</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#calciteOperator()">calciteOperator</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the calcite SQL operator corresponding to Druid operator.</div> |
| </td> |
| </tr> |
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| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#toDruidExpression(org.apache.calcite.rex.RexNode,org.apache.calcite.rel.type.RelDataType,org.apache.calcite.adapter.druid.DruidQuery)">toDruidExpression</a></span>​(<a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> rexNode, |
| <a href="../../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> rowType, |
| <a href="DruidQuery.html" title="class in org.apache.calcite.adapter.druid">DruidQuery</a> query)</code></th> |
| <td class="colLast"> |
| <div class="block">Translate rexNode to valid Druid expression.</div> |
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| <h3><a id="<init>()">ExtractOperatorConversion</a></h3> |
| <div class="memberSignature"><span class="modifiers">public</span> <span class="memberName">ExtractOperatorConversion</span>()</div> |
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| <h3><a id="calciteOperator()">calciteOperator</a></h3> |
| <div class="memberSignature"><span class="modifiers">public</span> <span class="returnType"><a href="../../sql/SqlOperator.html" title="class in org.apache.calcite.sql">SqlOperator</a></span> <span class="memberName">calciteOperator</span>()</div> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="DruidSqlOperatorConverter.html#calciteOperator()">DruidSqlOperatorConverter</a></code></span></div> |
| <div class="block">Returns the calcite SQL operator corresponding to Druid operator.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="DruidSqlOperatorConverter.html#calciteOperator()">calciteOperator</a></code> in interface <code><a href="DruidSqlOperatorConverter.html" title="interface in org.apache.calcite.adapter.druid">DruidSqlOperatorConverter</a></code></dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>operator</dd> |
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| <h3><a id="toDruidExpression(org.apache.calcite.rex.RexNode,org.apache.calcite.rel.type.RelDataType,org.apache.calcite.adapter.druid.DruidQuery)">toDruidExpression</a></h3> |
| <div class="memberSignature"><span class="modifiers">public</span> <span class="returnType"><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a></span> <span class="memberName">toDruidExpression</span>​(<span class="arguments"><a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> rexNode, |
| <a href="../../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> rowType, |
| <a href="DruidQuery.html" title="class in org.apache.calcite.adapter.druid">DruidQuery</a> query)</span></div> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="DruidSqlOperatorConverter.html#toDruidExpression(org.apache.calcite.rex.RexNode,org.apache.calcite.rel.type.RelDataType,org.apache.calcite.adapter.druid.DruidQuery)">DruidSqlOperatorConverter</a></code></span></div> |
| <div class="block">Translate rexNode to valid Druid expression.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="DruidSqlOperatorConverter.html#toDruidExpression(org.apache.calcite.rex.RexNode,org.apache.calcite.rel.type.RelDataType,org.apache.calcite.adapter.druid.DruidQuery)">toDruidExpression</a></code> in interface <code><a href="DruidSqlOperatorConverter.html" title="interface in org.apache.calcite.adapter.druid">DruidSqlOperatorConverter</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>rexNode</code> - rexNode to translate to Druid expression</dd> |
| <dd><code>rowType</code> - row type associated with rexNode</dd> |
| <dd><code>query</code> - druid query used to figure out configs/fields related like timeZone</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>valid Druid expression or null if it can not convert the rexNode</dd> |
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