Class LastQueryOperator
- java.lang.Object
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- org.apache.iotdb.db.qp.logical.Operator
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- org.apache.iotdb.db.qp.logical.crud.QueryOperator
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- org.apache.iotdb.db.qp.logical.crud.LastQueryOperator
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public class LastQueryOperator extends QueryOperator
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Nested Class Summary
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Nested classes/interfaces inherited from class org.apache.iotdb.db.qp.logical.Operator
Operator.OperatorType
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Field Summary
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Fields inherited from class org.apache.iotdb.db.qp.logical.crud.QueryOperator
enableTracing, fromComponent, indexType, props, selectComponent, specialClauseComponent, whereComponent
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Fields inherited from class org.apache.iotdb.db.qp.logical.Operator
isDebug, isPrefixMatchPath, operatorType, tokenIntType
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Constructor Summary
Constructors Constructor Description LastQueryOperator()LastQueryOperator(QueryOperator queryOperator)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description voidcheck()PhysicalPlangeneratePhysicalPlan(PhysicalGenerator generator)-
Methods inherited from class org.apache.iotdb.db.qp.logical.crud.QueryOperator
generateAlignByDevicePlan, generateRawDataQueryPlan, getAliasSet, getFromComponent, getIndexType, getLevels, getMatchedDevices, getMatchedTimeseries, getProps, getSelectComponent, getSpecialClauseComponent, getWhereComponent, hasAggregationFunction, hasSlimit, hasSoffset, hasTimeSeriesGeneratingFunction, isAlignByDevice, isAlignByTime, isEnableTracing, isGroupByLevel, optimizeExpression, resetSLimitOffset, setAliasSet, setEnableTracing, setFromComponent, setIndexType, setProps, setSelectComponent, setSpecialClauseComponent, setWhereComponent, transformFilterOperatorToExpression
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Methods inherited from class org.apache.iotdb.db.qp.logical.Operator
getTokenIntType, getType, isDebug, isPrefixMatchPath, isQuery, setDebug, setOperatorType, setPrefixMatchPath, toString
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Constructor Detail
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LastQueryOperator
public LastQueryOperator()
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LastQueryOperator
public LastQueryOperator(QueryOperator queryOperator)
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Method Detail
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check
public void check() throws LogicalOperatorException- Overrides:
checkin classQueryOperator- Throws:
LogicalOperatorException
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generatePhysicalPlan
public PhysicalPlan generatePhysicalPlan(PhysicalGenerator generator) throws QueryProcessException
- Overrides:
generatePhysicalPlanin classQueryOperator- Throws:
QueryProcessException
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