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<h1 title="程序包" class="title">程序包&nbsp;org.apache.calcite.adapter.druid</h1>
<div class="docSummary">
<div class="block">Query provider based on a Druid database.</div>
</div>
<p>请参阅:&nbsp;<a href="#package.description">说明</a></p>
</div>
<div class="contentContainer">
<ul class="blockList">
<li class="blockList">
<table class="typeSummary" border="0" cellpadding="3" cellspacing="0" summary="接口概要表, 列表接口和解释">
<caption><span>接口概要</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">接口</th>
<th class="colLast" scope="col">说明</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../org/apache/calcite/adapter/druid/DimensionSpec.html" title="org.apache.calcite.adapter.druid中的接口">DimensionSpec</a></td>
<td class="colLast">
<div class="block">Interface for Druid DimensionSpec.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../org/apache/calcite/adapter/druid/DruidConnection.html" title="org.apache.calcite.adapter.druid中的接口">DruidConnection</a></td>
<td class="colLast">
<div class="block">Connection to Druid.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../org/apache/calcite/adapter/druid/DruidJson.html" title="org.apache.calcite.adapter.druid中的接口">DruidJson</a></td>
<td class="colLast">
<div class="block">Object that knows how to write itself to a
<code>JsonGenerator</code>.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../org/apache/calcite/adapter/druid/DruidSqlOperatorConverter.html" title="org.apache.calcite.adapter.druid中的接口">DruidSqlOperatorConverter</a></td>
<td class="colLast">
<div class="block">Defines how to convert RexNode with a given calcite SQL operator to Druid expressions</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../org/apache/calcite/adapter/druid/ExtractionFunction.html" title="org.apache.calcite.adapter.druid中的接口">ExtractionFunction</a></td>
<td class="colLast">
<div class="block">Interface for Druid extraction functions.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../org/apache/calcite/adapter/druid/Granularity.html" title="org.apache.calcite.adapter.druid中的接口">Granularity</a></td>
<td class="colLast">
<div class="block">A strategy by which Druid rolls up rows into sub-totals based on their
timestamp values.</div>
</td>
</tr>
</tbody>
</table>
</li>
<li class="blockList">
<table class="typeSummary" border="0" cellpadding="3" cellspacing="0" summary="类概要表, 列表类和解释">
<caption><span>类概要</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">类</th>
<th class="colLast" scope="col">说明</th>
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<tbody>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../org/apache/calcite/adapter/druid/BinaryOperatorConversion.html" title="org.apache.calcite.adapter.druid中的类">BinaryOperatorConversion</a></td>
<td class="colLast">
<div class="block">Binary operator conversion utility class used to convert expression like exp1 Operator exp2</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../org/apache/calcite/adapter/druid/CeilOperatorConversion.html" title="org.apache.calcite.adapter.druid中的类">CeilOperatorConversion</a></td>
<td class="colLast">
<div class="block">DruidSqlOperatorConverter implementation that handles Ceil operations conversions</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../org/apache/calcite/adapter/druid/ComplexMetric.html" title="org.apache.calcite.adapter.druid中的类">ComplexMetric</a></td>
<td class="colLast">
<div class="block">Used to store information about available complex metrics in the Druid Adapter</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../org/apache/calcite/adapter/druid/DefaultDimensionSpec.html" title="org.apache.calcite.adapter.druid中的类">DefaultDimensionSpec</a></td>
<td class="colLast">
<div class="block">Default implementation of DimensionSpec.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../org/apache/calcite/adapter/druid/DirectOperatorConversion.html" title="org.apache.calcite.adapter.druid中的类">DirectOperatorConversion</a></td>
<td class="colLast">
<div class="block">Direct operator conversion for expression like Function(exp_1,...exp_n)</div>
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<td class="colFirst"><a href="../../../../../org/apache/calcite/adapter/druid/DruidDateTimeUtils.html" title="org.apache.calcite.adapter.druid中的类">DruidDateTimeUtils</a></td>
<td class="colLast">
<div class="block">Utilities for generating intervals from RexNode.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../org/apache/calcite/adapter/druid/DruidExpressions.html" title="org.apache.calcite.adapter.druid中的类">DruidExpressions</a></td>
<td class="colLast">
<div class="block">Expression utility class to transform Calcite expressions to Druid expressions when possible.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../org/apache/calcite/adapter/druid/DruidQuery.html" title="org.apache.calcite.adapter.druid中的类">DruidQuery</a></td>
<td class="colLast">
<div class="block">Relational expression representing a scan of a Druid data set.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../org/apache/calcite/adapter/druid/DruidQuery.JsonPostAggregation.html" title="org.apache.calcite.adapter.druid中的类">DruidQuery.JsonPostAggregation</a></td>
<td class="colLast">
<div class="block">Post-Aggregator Post aggregator abstract writer</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../org/apache/calcite/adapter/druid/DruidQuery.QuerySpec.html" title="org.apache.calcite.adapter.druid中的类">DruidQuery.QuerySpec</a></td>
<td class="colLast">
<div class="block">Druid query specification.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../org/apache/calcite/adapter/druid/DruidRules.html" title="org.apache.calcite.adapter.druid中的类">DruidRules</a></td>
<td class="colLast">
<div class="block">Rules and relational operators for <a href="../../../../../org/apache/calcite/adapter/druid/DruidQuery.html" title="org.apache.calcite.adapter.druid中的类"><code>DruidQuery</code></a>.</div>
</td>
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<td class="colFirst"><a href="../../../../../org/apache/calcite/adapter/druid/DruidRules.DruidAggregateExtractProjectRule.html" title="org.apache.calcite.adapter.druid中的类">DruidRules.DruidAggregateExtractProjectRule</a></td>
<td class="colLast">
<div class="block">Rule to extract a <a href="../../../../../org/apache/calcite/rel/core/Project.html" title="org.apache.calcite.rel.core中的类"><code>Project</code></a> from
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<td class="colFirst"><a href="../../../../../org/apache/calcite/adapter/druid/DruidRules.DruidAggregateProjectRule.html" title="org.apache.calcite.adapter.druid中的类">DruidRules.DruidAggregateProjectRule</a></td>
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<div class="block">Rule to push an <a href="../../../../../org/apache/calcite/rel/core/Aggregate.html" title="org.apache.calcite.rel.core中的类"><code>Aggregate</code></a> and
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<td class="colFirst"><a href="../../../../../org/apache/calcite/adapter/druid/DruidRules.DruidAggregateRule.html" title="org.apache.calcite.adapter.druid中的类">DruidRules.DruidAggregateRule</a></td>
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<div class="block">Rule to push an <a href="../../../../../org/apache/calcite/rel/core/Aggregate.html" title="org.apache.calcite.rel.core中的类"><code>Aggregate</code></a> into a <a href="../../../../../org/apache/calcite/adapter/druid/DruidQuery.html" title="org.apache.calcite.adapter.druid中的类"><code>DruidQuery</code></a>.</div>
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<td class="colFirst"><a href="../../../../../org/apache/calcite/adapter/druid/DruidRules.DruidFilterProjectTransposeRule.html" title="org.apache.calcite.adapter.druid中的类">DruidRules.DruidFilterProjectTransposeRule</a></td>
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<div class="block">Rule to push a <a href="../../../../../org/apache/calcite/rel/core/Filter.html" title="org.apache.calcite.rel.core中的类"><code>Filter</code></a>
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<td class="colFirst"><a href="../../../../../org/apache/calcite/adapter/druid/DruidRules.DruidFilterRule.html" title="org.apache.calcite.adapter.druid中的类">DruidRules.DruidFilterRule</a></td>
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<div class="block">Rule to push a <a href="../../../../../org/apache/calcite/rel/core/Filter.html" title="org.apache.calcite.rel.core中的类"><code>Filter</code></a> into a <a href="../../../../../org/apache/calcite/adapter/druid/DruidQuery.html" title="org.apache.calcite.adapter.druid中的类"><code>DruidQuery</code></a>.</div>
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<td class="colFirst"><a href="../../../../../org/apache/calcite/adapter/druid/DruidRules.DruidHavingFilterRule.html" title="org.apache.calcite.adapter.druid中的类">DruidRules.DruidHavingFilterRule</a></td>
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<div class="block">Rule to Push a Having <a href="../../../../../org/apache/calcite/rel/core/Filter.html" title="org.apache.calcite.rel.core中的类"><code>Filter</code></a> into a <a href="../../../../../org/apache/calcite/adapter/druid/DruidQuery.html" title="org.apache.calcite.adapter.druid中的类"><code>DruidQuery</code></a></div>
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<td class="colFirst"><a href="../../../../../org/apache/calcite/adapter/druid/DruidRules.DruidPostAggregationProjectRule.html" title="org.apache.calcite.adapter.druid中的类">DruidRules.DruidPostAggregationProjectRule</a></td>
<td class="colLast">
<div class="block">Rule to push a <a href="../../../../../org/apache/calcite/rel/core/Project.html" title="org.apache.calcite.rel.core中的类"><code>Project</code></a> into a <a href="../../../../../org/apache/calcite/adapter/druid/DruidQuery.html" title="org.apache.calcite.adapter.druid中的类"><code>DruidQuery</code></a> as a
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<td class="colFirst"><a href="../../../../../org/apache/calcite/adapter/druid/DruidRules.DruidProjectFilterTransposeRule.html" title="org.apache.calcite.adapter.druid中的类">DruidRules.DruidProjectFilterTransposeRule</a></td>
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<div class="block">Rule to push a <a href="../../../../../org/apache/calcite/rel/core/Project.html" title="org.apache.calcite.rel.core中的类"><code>Project</code></a>
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<div class="block">Rule to push back <a href="../../../../../org/apache/calcite/rel/core/Project.html" title="org.apache.calcite.rel.core中的类"><code>Project</code></a> through a
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<div class="block">Rule to push an <a href="../../../../../org/apache/calcite/rel/core/Sort.html" title="org.apache.calcite.rel.core中的类"><code>Sort</code></a> through a
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<td class="colFirst"><a href="../../../../../org/apache/calcite/adapter/druid/DruidSchema.html" title="org.apache.calcite.adapter.druid中的类">DruidSchema</a></td>
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<div class="block">Schema mapped onto a Druid instance.</div>
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<td class="colFirst"><a href="../../../../../org/apache/calcite/adapter/druid/DruidSchemaFactory.html" title="org.apache.calcite.adapter.druid中的类">DruidSchemaFactory</a></td>
<td class="colLast">
<div class="block">Schema factory that creates Druid schemas.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../org/apache/calcite/adapter/druid/DruidSqlCastConverter.html" title="org.apache.calcite.adapter.druid中的类">DruidSqlCastConverter</a></td>
<td class="colLast">
<div class="block">Druid cast converter operator used to translates calcite casts to Druid expression cast</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../org/apache/calcite/adapter/druid/DruidTable.html" title="org.apache.calcite.adapter.druid中的类">DruidTable</a></td>
<td class="colLast">
<div class="block">Table mapped onto a Druid table.</div>
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<tr class="rowColor">
<td class="colFirst"><a href="../../../../../org/apache/calcite/adapter/druid/DruidTableFactory.html" title="org.apache.calcite.adapter.druid中的类">DruidTableFactory</a></td>
<td class="colLast">
<div class="block">Implementation of <a href="../../../../../org/apache/calcite/schema/TableFactory.html" title="org.apache.calcite.schema中的接口"><code>TableFactory</code></a> for Druid.</div>
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</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../org/apache/calcite/adapter/druid/ExtractionDimensionSpec.html" title="org.apache.calcite.adapter.druid中的类">ExtractionDimensionSpec</a></td>
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<div class="block">Implementation of extraction function DimensionSpec.</div>
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<td class="colFirst"><a href="../../../../../org/apache/calcite/adapter/druid/ExtractOperatorConversion.html" title="org.apache.calcite.adapter.druid中的类">ExtractOperatorConversion</a></td>
<td class="colLast">
<div class="block">Time extract operator conversion for expressions like EXTRACT(timeUnit FROM arg)
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DOW (day of week), DOY (day of year), WEEK (week of week year),
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<td class="colFirst"><a href="../../../../../org/apache/calcite/adapter/druid/FloorOperatorConversion.html" title="org.apache.calcite.adapter.druid中的类">FloorOperatorConversion</a></td>
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<div class="block">DruidSqlOperatorConverter implementation that handles Floor operations conversions</div>
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<tr class="rowColor">
<td class="colFirst"><a href="../../../../../org/apache/calcite/adapter/druid/Granularities.html" title="org.apache.calcite.adapter.druid中的类">Granularities</a></td>
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<div class="block">Factory methods and helpers for <a href="../../../../../org/apache/calcite/adapter/druid/Granularity.html" title="org.apache.calcite.adapter.druid中的接口"><code>Granularity</code></a>.</div>
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<td class="colFirst"><a href="../../../../../org/apache/calcite/adapter/druid/NaryOperatorConverter.html" title="org.apache.calcite.adapter.druid中的类">NaryOperatorConverter</a></td>
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<div class="block">Converts Calcite n-ary operators to druid expression eg (arg1 Op arg2 Op arg3)</div>
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<td class="colFirst"><a href="../../../../../org/apache/calcite/adapter/druid/SubstringOperatorConversion.html" title="org.apache.calcite.adapter.druid中的类">SubstringOperatorConversion</a></td>
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<div class="block">Converts Calcite SUBSTRING call to Druid Expression when possible</div>
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