Package org.apache.iotdb.db.qp.logical.crud

Class GroupByQueryOperator

java.lang.Object

org.apache.iotdb.db.qp.logical.Operator

org.apache.iotdb.db.qp.logical.crud.QueryOperator

org.apache.iotdb.db.qp.logical.crud.AggregationQueryOperator

org.apache.iotdb.db.qp.logical.crud.GroupByQueryOperator

Direct Known Subclasses:

GroupByFillQueryOperator

public class GroupByQueryOperator
extends AggregationQueryOperator

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.iotdb.db.qp.logical.Operator

Operator.OperatorType

Field Summary

Fields inherited from class org.apache.iotdb.db.qp.logical.crud.AggregationQueryOperator

ERROR_MESSAGE1

Fields inherited from class org.apache.iotdb.db.qp.logical.crud.QueryOperator

enableTracing, fromComponent, indexType, props, selectComponent, specialClauseComponent, whereComponent

Fields inherited from class org.apache.iotdb.db.qp.logical.Operator

isDebug, isPrefixMatchPath, operatorType, tokenIntType

Constructor Summary

Constructors

Constructor	Description
GroupByQueryOperator()

Method Summary

Modifier and Type	Method	Description
protected AlignByDevicePlan	generateAlignByDevicePlan(PhysicalGenerator generator)
PhysicalPlan	generatePhysicalPlan(PhysicalGenerator generator)
protected GroupByTimePlan	initGroupByTimePlan(QueryPlan queryPlan)
protected org.apache.iotdb.tsfile.read.expression.IExpression	optimizeExpression(org.apache.iotdb.tsfile.read.expression.IExpression expression, RawDataQueryPlan queryPlan)

Methods inherited from class org.apache.iotdb.db.qp.logical.crud.AggregationQueryOperator

check, checkSelectComponent, initAggregationPlan, initGroupByLevel

Methods inherited from class org.apache.iotdb.db.qp.logical.crud.QueryOperator

generateRawDataQueryPlan, getAliasSet, getFromComponent, getIndexType, getLevels, getMatchedDevices, getMatchedTimeseries, getProps, getSelectComponent, getSpecialClauseComponent, getWhereComponent, hasAggregationFunction, hasSlimit, hasSoffset, hasTimeSeriesGeneratingFunction, isAlignByDevice, isAlignByTime, isEnableTracing, isGroupByLevel, resetSLimitOffset, setAliasSet, setEnableTracing, setFromComponent, setIndexType, setProps, setSelectComponent, setSpecialClauseComponent, setWhereComponent, transformFilterOperatorToExpression

Methods inherited from class org.apache.iotdb.db.qp.logical.Operator

getTokenIntType, getType, isDebug, isPrefixMatchPath, isQuery, setDebug, setOperatorType, setPrefixMatchPath, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

GroupByQueryOperator

public GroupByQueryOperator()

Method Detail

generatePhysicalPlan

public PhysicalPlan generatePhysicalPlan(PhysicalGenerator generator)
                                  throws QueryProcessException

Overrides:

generatePhysicalPlan in class AggregationQueryOperator

Throws:

QueryProcessException

generateAlignByDevicePlan

protected AlignByDevicePlan generateAlignByDevicePlan(PhysicalGenerator generator)
                                               throws QueryProcessException

Overrides:

generateAlignByDevicePlan in class AggregationQueryOperator

Throws:

QueryProcessException

initGroupByTimePlan

protected GroupByTimePlan initGroupByTimePlan(QueryPlan queryPlan)
                                       throws QueryProcessException

Throws:

QueryProcessException

optimizeExpression

protected org.apache.iotdb.tsfile.read.expression.IExpression optimizeExpression(org.apache.iotdb.tsfile.read.expression.IExpression expression,
                                                                                 RawDataQueryPlan queryPlan)
                                                                          throws QueryProcessException

Overrides:

optimizeExpression in class QueryOperator

Throws:

QueryProcessException