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| <h2 title="Class ExtractOperatorConversion" class="title">Class ExtractOperatorConversion</h2> |
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| <pre>public class <span class="typeNameLabel">ExtractOperatorConversion</span> |
| extends java.lang.Object |
| 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 EXTRACT(timeUnit FROM arg) |
| 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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| <tr class="altColor"> |
| <td class="colFirst"><code>private static java.util.Map<org.apache.calcite.avatica.util.TimeUnitRange,​java.lang.String></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#EXTRACT_UNIT_MAP">EXTRACT_UNIT_MAP</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> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>java.lang.String</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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| <h4>EXTRACT_UNIT_MAP</h4> |
| <pre>private static final java.util.Map<org.apache.calcite.avatica.util.TimeUnitRange,​java.lang.String> EXTRACT_UNIT_MAP</pre> |
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| <h4>ExtractOperatorConversion</h4> |
| <pre>public ExtractOperatorConversion()</pre> |
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| <h4>calciteOperator</h4> |
| <pre class="methodSignature">public <a href="../../sql/SqlOperator.html" title="class in org.apache.calcite.sql">SqlOperator</a> calciteOperator()</pre> |
| <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> |
| </dl> |
| </li> |
| </ul> |
| <a id="toDruidExpression(org.apache.calcite.rex.RexNode,org.apache.calcite.rel.type.RelDataType,org.apache.calcite.adapter.druid.DruidQuery)"> |
| <!-- --> |
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| <h4>toDruidExpression</h4> |
| <pre class="methodSignature">public java.lang.String toDruidExpression​(<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)</pre> |
| <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> |
| </dl> |
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