类的使用
org.apache.iotdb.db.query.context.QueryContext

使用QueryContext的程序包

程序包	说明
org.apache.iotdb.db.engine.compaction
org.apache.iotdb.db.engine.compaction.cross.rewrite.task
org.apache.iotdb.db.engine.storagegroup
org.apache.iotdb.db.metadata
org.apache.iotdb.db.metadata.lastCache
org.apache.iotdb.db.metadata.mtree
org.apache.iotdb.db.metadata.path
org.apache.iotdb.db.metadata.tag
org.apache.iotdb.db.qp.executor
org.apache.iotdb.db.query.context
org.apache.iotdb.db.query.control
org.apache.iotdb.db.query.dataset
org.apache.iotdb.db.query.dataset.groupby
org.apache.iotdb.db.query.executor
org.apache.iotdb.db.query.executor.fill
org.apache.iotdb.db.query.reader.chunk.metadata
org.apache.iotdb.db.query.reader.series
org.apache.iotdb.db.query.reader.universal
org.apache.iotdb.db.query.timegenerator
org.apache.iotdb.db.service.basic
org.apache.iotdb.db.utils

org.apache.iotdb.db.engine.compaction中QueryContext的使用

参数类型为QueryContext的org.apache.iotdb.db.engine.compaction中的方法

限定符和类型	方法和说明
static IBatchReader	CompactionUtils.constructReader(String deviceId, List<String> measurementIds, List<IMeasurementSchema> measurementSchemas, Set<String> allSensors, QueryContext queryContext, QueryDataSource queryDataSource, boolean isAlign)

org.apache.iotdb.db.engine.compaction.cross.rewrite.task中QueryContext的使用

参数类型为QueryContext的org.apache.iotdb.db.engine.compaction.cross.rewrite.task中的构造器

构造器和说明
SubCompactionTask(String device, Set<String> measurementList, QueryContext queryContext, QueryDataSource queryDataSource, AbstractCompactionWriter compactionWriter, Map<String,MeasurementSchema> schemaMap, int taskId)

org.apache.iotdb.db.engine.storagegroup中QueryContext的使用

参数类型为QueryContext的org.apache.iotdb.db.engine.storagegroup中的方法

限定符和类型	方法和说明
void	TsFileProcessor.query(List<PartialPath> seriesPaths, QueryContext context, List<TsFileResource> tsfileResourcesForQuery) get the chunk(s) in the memtable (one from work memtable and the other ones in flushing memtables and then compact them into one TimeValuePairSorter).
QueryDataSource	VirtualStorageGroupProcessor.query(List<PartialPath> pathList, String singleDeviceId, QueryContext context, QueryFileManager filePathsManager, Filter timeFilter) build query data source by searching all tsfile which fit in query filter

org.apache.iotdb.db.metadata中QueryContext的使用

参数类型为QueryContext的org.apache.iotdb.db.metadata中的方法

限定符和类型	方法和说明
List<ShowTimeSeriesResult>	MManager.showTimeseries(ShowTimeSeriesPlan plan, QueryContext context)

org.apache.iotdb.db.metadata.lastCache中QueryContext的使用

参数类型为QueryContext的org.apache.iotdb.db.metadata.lastCache中的方法

限定符和类型	方法和说明
static long	LastCacheManager.getLastTimeStamp(IMeasurementMNode node, QueryContext queryContext) get the last value of timeseries represented by given measurementMNode get last value from cache in measurementMNode if absent, get last value from file

org.apache.iotdb.db.metadata.mtree中QueryContext的使用

参数类型为QueryContext的org.apache.iotdb.db.metadata.mtree中的方法

限定符和类型	方法和说明
List<Pair<PartialPath,String[]>>	MTree.getAllMeasurementSchemaByHeatOrder(ShowTimeSeriesPlan plan, QueryContext queryContext) Get all measurement schema matching the given path pattern order by insert frequency result: [name, alias, storage group, dataType, encoding, compression, offset]

org.apache.iotdb.db.metadata.path中QueryContext的使用

参数类型为QueryContext的org.apache.iotdb.db.metadata.path中的方法

限定符和类型	方法和说明
AlignedLastPointReader	AlignedPath.createLastPointReader(TSDataType dataType, Set<String> deviceMeasurements, QueryContext context, QueryDataSource dataSource, long queryTime, Filter timeFilter)
LastPointReader	PartialPath.createLastPointReader(TSDataType dataType, Set<String> deviceMeasurements, QueryContext context, QueryDataSource dataSource, long queryTime, Filter timeFilter)
LastPointReader	MeasurementPath.createLastPointReader(TSDataType dataType, Set<String> deviceMeasurements, QueryContext context, QueryDataSource dataSource, long queryTime, Filter timeFilter)
AlignedSeriesReader	AlignedPath.createSeriesReader(Set<String> allSensors, TSDataType dataType, QueryContext context, List<TsFileResource> seqFileResource, List<TsFileResource> unseqFileResource, Filter timeFilter, Filter valueFilter, boolean ascending)
SeriesReader	PartialPath.createSeriesReader(Set<String> allSensors, TSDataType dataType, QueryContext context, List<TsFileResource> seqFileResource, List<TsFileResource> unseqFileResource, Filter timeFilter, Filter valueFilter, boolean ascending)
SeriesReader	MeasurementPath.createSeriesReader(Set<String> allSensors, TSDataType dataType, QueryContext context, List<TsFileResource> seqFileResource, List<TsFileResource> unseqFileResource, Filter timeFilter, Filter valueFilter, boolean ascending)
AlignedSeriesReader	AlignedPath.createSeriesReader(Set<String> allSensors, TSDataType dataType, QueryContext context, QueryDataSource dataSource, Filter timeFilter, Filter valueFilter, TsFileFilter fileFilter, boolean ascending)
SeriesReader	PartialPath.createSeriesReader(Set<String> allSensors, TSDataType dataType, QueryContext context, QueryDataSource dataSource, Filter timeFilter, Filter valueFilter, TsFileFilter fileFilter, boolean ascending)
SeriesReader	MeasurementPath.createSeriesReader(Set<String> allSensors, TSDataType dataType, QueryContext context, QueryDataSource dataSource, Filter timeFilter, Filter valueFilter, TsFileFilter fileFilter, boolean ascending)
List<IChunkMetadata>	AlignedPath.getVisibleMetadataListFromWriter(RestorableTsFileIOWriter writer, TsFileResource tsFileResource, QueryContext context)
List<IChunkMetadata>	PartialPath.getVisibleMetadataListFromWriter(RestorableTsFileIOWriter writer, TsFileResource tsFileResource, QueryContext context)
List<IChunkMetadata>	MeasurementPath.getVisibleMetadataListFromWriter(RestorableTsFileIOWriter writer, TsFileResource tsFileResource, QueryContext context)

org.apache.iotdb.db.metadata.tag中QueryContext的使用

参数类型为QueryContext的org.apache.iotdb.db.metadata.tag中的方法

限定符和类型	方法和说明
List<IMeasurementMNode>	TagManager.getMatchedTimeseriesInIndex(ShowTimeSeriesPlan plan, QueryContext context)

org.apache.iotdb.db.qp.executor中QueryContext的使用

参数类型为QueryContext的org.apache.iotdb.db.qp.executor中的方法

限定符和类型	方法和说明
protected AlignByDeviceDataSet	PlanExecutor.getAlignByDeviceDataSet(AlignByDevicePlan plan, QueryContext context, IQueryRouter router)
protected QueryDataSet	PlanExecutor.processDataQuery(QueryPlan queryPlan, QueryContext context)
QueryDataSet	PlanExecutor.processQuery(PhysicalPlan queryPlan, QueryContext context)
QueryDataSet	IPlanExecutor.processQuery(PhysicalPlan queryPlan, QueryContext context) process query plan of qp layer, construct queryDataSet.
protected QueryDataSet	PlanExecutor.processShowQuery(ShowPlan showPlan, QueryContext context)

org.apache.iotdb.db.query.context中QueryContext的使用

返回QueryContext的org.apache.iotdb.db.query.context中的方法

限定符和类型	方法和说明
QueryContext	QueryContext.setStartTime(long startTime)
QueryContext	QueryContext.setStatement(String statement)
QueryContext	QueryContext.setTimeout(long timeout)

org.apache.iotdb.db.query.control中QueryContext的使用

返回QueryContext的org.apache.iotdb.db.query.control中的方法

限定符和类型	方法和说明
QueryContext	QueryTimeManager.getQueryContext(long queryId)

返回变量类型为QueryContext的类型的org.apache.iotdb.db.query.control中的方法

限定符和类型	方法和说明
Map<Long,QueryContext>	QueryTimeManager.getQueryContextMap()

参数类型为QueryContext的org.apache.iotdb.db.query.control中的方法

限定符和类型	方法和说明
QueryDataSource	QueryResourceManager.getQueryDataSource(PartialPath selectedPath, QueryContext context, Filter timeFilter, boolean ascending)
void	QueryResourceManager.initQueryDataSourceCache(Map<VirtualStorageGroupProcessor,List<PartialPath>> processorToSeriesMap, QueryContext context, Filter timeFilter) The method is called in mergeLock() when executing query.
void	QueryTimeManager.registerQuery(QueryContext context)

org.apache.iotdb.db.query.dataset中QueryContext的使用

参数类型为QueryContext的org.apache.iotdb.db.query.dataset中的构造器

构造器和说明
AlignByDeviceDataSet(AlignByDevicePlan alignByDevicePlan, QueryContext context, IQueryRouter queryRouter)
ShowTimeseriesDataSet(ShowTimeSeriesPlan showTimeSeriesPlan, QueryContext context)
UDTFAlignByTimeDataSet(QueryContext context, UDTFPlan udtfPlan, IUDFInputDataSet inputDataSet, boolean keepNull)
UDTFAlignByTimeDataSet(QueryContext context, UDTFPlan udtfPlan, List<ManagedSeriesReader> readersOfSelectedSeries) execute without value filter
UDTFAlignByTimeDataSet(QueryContext context, UDTFPlan udtfPlan, TimeGenerator timestampGenerator, List<IReaderByTimestamp> readersOfSelectedSeries, List<List<Integer>> readerToIndexList, List<Boolean> cached) execute with value filter
UDTFDataSet(QueryContext queryContext, UDTFPlan udtfPlan, IUDFInputDataSet dataSet)
UDTFDataSet(QueryContext queryContext, UDTFPlan udtfPlan, List<PartialPath> deduplicatedPaths, List<TSDataType> deduplicatedDataTypes, List<ManagedSeriesReader> readersOfSelectedSeries) execute without value filters
UDTFDataSet(QueryContext queryContext, UDTFPlan udtfPlan, List<PartialPath> deduplicatedPaths, List<TSDataType> deduplicatedDataTypes, TimeGenerator timestampGenerator, List<IReaderByTimestamp> readersOfSelectedSeries, List<List<Integer>> readerToIndexList, List<Boolean> cached) execute with value filters
UDTFNonAlignDataSet(QueryContext context, UDTFPlan udtfPlan, List<ManagedSeriesReader> readersOfSelectedSeries) execute without value filter
UDTFNonAlignDataSet(QueryContext context, UDTFPlan udtfPlan, TimeGenerator timestampGenerator, List<IReaderByTimestamp> readersOfSelectedSeries, List<List<Integer>> readerToIndexList, List<Boolean> cached) execute with value filter

org.apache.iotdb.db.query.dataset.groupby中QueryContext的使用

参数类型为QueryContext的org.apache.iotdb.db.query.dataset.groupby中的方法

限定符和类型	方法和说明
protected AlignedGroupByExecutor	GroupByWithoutValueFilterDataSet.getAlignedGroupByExecutor(PartialPath path, QueryContext context, Filter timeFilter, TsFileFilter fileFilter, boolean ascending)
protected GroupByExecutor	GroupByWithoutValueFilterDataSet.getGroupByExecutor(PartialPath path, Set<String> allSensors, QueryContext context, Filter timeFilter, TsFileFilter fileFilter, boolean ascending)
protected IReaderByTimestamp	GroupByWithValueFilterDataSet.getReaderByTime(PartialPath path, RawDataQueryPlan queryPlan, QueryContext context)
protected TimeGenerator	GroupByWithValueFilterDataSet.getTimeGenerator(QueryContext context, RawDataQueryPlan queryPlan)
void	GroupByWithoutValueFilterDataSet.initGroupBy(QueryContext context, GroupByTimePlan groupByTimePlan) init reader and aggregate function.
void	GroupByWithValueFilterDataSet.initGroupBy(QueryContext context, GroupByTimePlan groupByTimePlan) init reader and aggregate function.
protected void	GroupByEngineDataSet.initGroupByEngineDataSetFields(QueryContext context, GroupByTimePlan groupByTimePlan)

参数类型为QueryContext的org.apache.iotdb.db.query.dataset.groupby中的构造器

构造器和说明
GroupByEngineDataSet(QueryContext context, GroupByTimePlan groupByTimePlan) groupBy query.
GroupByFillDataSet(QueryContext context, GroupByTimeFillPlan groupByTimeFillPlan)
GroupByWithoutValueFilterDataSet(QueryContext context, GroupByTimePlan groupByTimePlan) constructor.
GroupByWithValueFilterDataSet(QueryContext context, GroupByTimePlan groupByTimePlan) constructor.
LocalAlignedGroupByExecutor(PartialPath path, QueryContext context, Filter timeFilter, TsFileFilter fileFilter, boolean ascending)
LocalGroupByExecutor(PartialPath path, Set<String> allSensors, QueryContext context, Filter timeFilter, TsFileFilter fileFilter, boolean ascending)

org.apache.iotdb.db.query.executor中QueryContext的使用

声明为QueryContext的org.apache.iotdb.db.query.executor中的字段

限定符和类型	字段和说明
protected QueryContext	AggregationExecutor.context

参数类型为QueryContext的org.apache.iotdb.db.query.executor中的方法

限定符和类型	方法和说明
QueryDataSet	IQueryRouter.aggregate(AggregationPlan aggregationPlan, QueryContext context) Execute aggregation query.
QueryDataSet	QueryRouter.aggregate(AggregationPlan aggregationPlan, QueryContext context)
static void	AggregationExecutor.aggregateOneAlignedSeries(AlignedPath alignedPath, Set<String> measurements, QueryContext context, Filter timeFilter, TSDataType tsDataType, List<List<AggregateResult>> ascAggregateResultList, List<List<AggregateResult>> descAggregateResultList, TsFileFilter fileFilter, boolean ascending)
static void	AggregationExecutor.aggregateOneSeries(PartialPath seriesPath, Set<String> measurements, QueryContext context, Filter timeFilter, TSDataType tsDataType, List<AggregateResult> ascAggregateResultList, List<AggregateResult> descAggregateResultList, TsFileFilter fileFilter, boolean ascending)
protected List<Pair<Boolean,TimeValuePair>>	LastQueryExecutor.calculateLastPairForSeries(List<PartialPath> seriesPaths, List<TSDataType> dataTypes, QueryContext context, IExpression expression, RawDataQueryPlan lastQueryPlan)
static List<Pair<Boolean,TimeValuePair>>	LastQueryExecutor.calculateLastPairForSeriesLocally(List<PartialPath> seriesPaths, List<TSDataType> dataTypes, QueryContext context, IExpression expression, Map<String,Set<String>> deviceMeasurementsMap)
protected IFill	FillQueryExecutor.configureFill(IFill fill, PartialPath path, TSDataType dataType, long queryTime, Set<String> deviceMeasurements, QueryContext context)
QueryDataSet	FillQueryExecutor.execute(QueryContext context) execute fill.
QueryDataSet	LastQueryExecutor.execute(QueryContext context, LastQueryPlan lastQueryPlan) execute last function
QueryDataSet	UDFQueryExecutor.executeFromAlignedDataSet(QueryContext context, QueryDataSet sourceDataSet, List<TSDataType> fieldTypes, boolean keepNull)
QueryDataSet	RawDataQueryExecutor.executeNonAlign(QueryContext context)
QueryDataSet	RawDataQueryExecutor.executeWithoutValueFilter(QueryContext context) without filter or with global time filter.
QueryDataSet	UDFQueryExecutor.executeWithoutValueFilterAlignByTime(QueryContext context)
QueryDataSet	UDFQueryExecutor.executeWithoutValueFilterNonAlign(QueryContext context)
QueryDataSet	RawDataQueryExecutor.executeWithValueFilter(QueryContext context) executeWithValueFilter query.
QueryDataSet	UDFQueryExecutor.executeWithValueFilterAlignByTime(QueryContext context)
QueryDataSet	UDFQueryExecutor.executeWithValueFilterNonAlign(QueryContext context)
QueryDataSet	IQueryRouter.fill(FillQueryPlan fillQueryPlan, QueryContext context) Execute fill query.
QueryDataSet	QueryRouter.fill(FillQueryPlan fillQueryPlan, QueryContext context)
protected AggregationExecutor	QueryRouter.getAggregationExecutor(QueryContext context, AggregationPlan aggregationPlan)
protected GroupByWithoutValueFilterDataSet	QueryRouter.getGroupByWithoutValueFilterDataSet(QueryContext context, GroupByTimePlan plan)
protected GroupByWithValueFilterDataSet	QueryRouter.getGroupByWithValueFilterDataSet(QueryContext context, GroupByTimePlan plan)
protected IReaderByTimestamp	AggregationExecutor.getReaderByTime(PartialPath path, RawDataQueryPlan queryPlan, TSDataType dataType, QueryContext context)
protected IReaderByTimestamp	RawDataQueryExecutor.getReaderByTimestamp(PartialPath path, Set<String> allSensors, TSDataType dataType, QueryContext context)
protected TimeGenerator	RawDataQueryExecutor.getTimeGenerator(QueryContext context, RawDataQueryPlan queryPlan)
protected TimeGenerator	AggregationExecutor.getTimeGenerator(QueryContext context, RawDataQueryPlan queryPlan)
protected List<TimeValuePair>	FillQueryExecutor.getTimeValuePairs(QueryContext context)
QueryDataSet	IQueryRouter.groupBy(GroupByTimePlan groupByTimePlan, QueryContext context) Execute groupBy query.
QueryDataSet	QueryRouter.groupBy(GroupByTimePlan groupByTimePlan, QueryContext context)
QueryDataSet	IQueryRouter.groupByFill(GroupByTimeFillPlan groupByFillPlan, QueryContext context) Execute group by fill query
QueryDataSet	QueryRouter.groupByFill(GroupByTimeFillPlan groupByFillPlan, QueryContext context)
protected List<ManagedSeriesReader>	RawDataQueryExecutor.initManagedSeriesReader(QueryContext context)
protected Pair<List<IReaderByTimestamp>,List<List<Integer>>>	RawDataQueryExecutor.initSeriesReaderByTimestamp(QueryContext context, RawDataQueryPlan queryPlan, List<Boolean> cached, Filter timeFilter) init IReaderByTimestamp for each not cached PartialPath, if it's already been cached, the corresponding IReaderByTimestamp will be null group these not cached PartialPath to one AlignedPath if they belong to same aligned device
QueryDataSet	IQueryRouter.lastQuery(LastQueryPlan lastQueryPlan, QueryContext context) Execute last query
QueryDataSet	QueryRouter.lastQuery(LastQueryPlan lastQueryPlan, QueryContext context)
protected QueryDataSet	RawDataQueryExecutor.needRedirect(QueryContext context, boolean hasValueFilter) Check whether need to redirect query to other node.
QueryDataSet	IQueryRouter.rawDataQuery(RawDataQueryPlan queryPlan, QueryContext context) Execute physical plan.
QueryDataSet	QueryRouter.rawDataQuery(RawDataQueryPlan queryPlan, QueryContext context)
QueryDataSet	IQueryRouter.udafQuery(UDAFPlan udafPlan, QueryContext context) Execute UDAF query.
QueryDataSet	QueryRouter.udafQuery(UDAFPlan udafPlan, QueryContext context)
QueryDataSet	IQueryRouter.udtfQuery(UDTFPlan udtfPlan, QueryContext context) Execute UDTF query
QueryDataSet	QueryRouter.udtfQuery(UDTFPlan udtfPlan, QueryContext context)

参数类型为QueryContext的org.apache.iotdb.db.query.executor中的构造器

构造器和说明
AggregationExecutor(QueryContext context, AggregationPlan aggregationPlan)

org.apache.iotdb.db.query.executor.fill中QueryContext的使用

声明为QueryContext的org.apache.iotdb.db.query.executor.fill中的字段

限定符和类型	字段和说明
protected QueryContext	LinearFill.context

参数类型为QueryContext的org.apache.iotdb.db.query.executor.fill中的方法

限定符和类型	方法和说明
void	ValueFill.configureFill(PartialPath path, TSDataType dataType, long queryTime, Set<String> deviceMeasurements, QueryContext context)
void	LinearFill.configureFill(PartialPath path, TSDataType dataType, long queryTime, Set<String> sensors, QueryContext context)
abstract void	IFill.configureFill(PartialPath path, TSDataType dataType, long queryTime, Set<String> deviceMeasurements, QueryContext context)
void	PreviousFill.configureFill(PartialPath path, TSDataType dataType, long queryTime, Set<String> sensors, QueryContext context)
protected ITimeSeriesMetadata	LastPointReader.loadTimeSeriesMetadata(TsFileResource resource, PartialPath seriesPath, QueryContext context, Filter filter, Set<String> allSensors)
protected AlignedTimeSeriesMetadata	AlignedLastPointReader.loadTimeSeriesMetadata(TsFileResource resource, PartialPath seriesPath, QueryContext context, Filter filter, Set<String> allSensors)

参数类型为QueryContext的org.apache.iotdb.db.query.executor.fill中的构造器

构造器和说明
AlignedLastPointReader(PartialPath seriesPath, TSDataType dataType, Set<String> deviceMeasurements, QueryContext context, QueryDataSource dataSource, long queryTime, Filter timeFilter)
LastPointReader(PartialPath seriesPath, TSDataType dataType, Set<String> measurements, QueryContext context, QueryDataSource dataSource, long queryTime, Filter timeFilter)

org.apache.iotdb.db.query.reader.chunk.metadata中QueryContext的使用

参数类型为QueryContext的org.apache.iotdb.db.query.reader.chunk.metadata中的构造器

构造器和说明
DiskAlignedChunkMetadataLoader(TsFileResource resource, AlignedPath seriesPath, QueryContext context, Filter filter)
DiskChunkMetadataLoader(TsFileResource resource, PartialPath seriesPath, QueryContext context, Filter filter)
MemAlignedChunkMetadataLoader(TsFileResource resource, PartialPath seriesPath, QueryContext context, Filter timeFilter)
MemChunkMetadataLoader(TsFileResource resource, PartialPath seriesPath, QueryContext context, Filter timeFilter)

org.apache.iotdb.db.query.reader.series中QueryContext的使用

声明为QueryContext的org.apache.iotdb.db.query.reader.series中的字段

限定符和类型	字段和说明
protected QueryContext	SeriesReader.context

参数类型为QueryContext的org.apache.iotdb.db.query.reader.series中的方法

限定符和类型	方法和说明
protected ITimeSeriesMetadata	SeriesReader.loadTimeSeriesMetadata(TsFileResource resource, PartialPath seriesPath, QueryContext context, Filter filter, Set<String> allSensors)
protected AlignedTimeSeriesMetadata	AlignedSeriesReader.loadTimeSeriesMetadata(TsFileResource resource, PartialPath seriesPath, QueryContext context, Filter filter, Set<String> allSensors)

参数类型为QueryContext的org.apache.iotdb.db.query.reader.series中的构造器

构造器和说明
AlignedSeriesAggregateReader(AlignedPath seriesPath, Set<String> allSensors, TSDataType dataType, QueryContext context, QueryDataSource dataSource, Filter timeFilter, Filter valueFilter, TsFileFilter fileFilter, boolean ascending)
AlignedSeriesReader(PartialPath seriesPath, Set<String> allSensors, TSDataType dataType, QueryContext context, List<TsFileResource> seqFileResource, List<TsFileResource> unseqFileResource, Filter timeFilter, Filter valueFilter, boolean ascending)
AlignedSeriesReader(PartialPath seriesPath, Set<String> allSensors, TSDataType dataType, QueryContext context, QueryDataSource dataSource, Filter timeFilter, Filter valueFilter, TsFileFilter fileFilter, boolean ascending)
SeriesAggregateReader(PartialPath seriesPath, Set<String> allSensors, TSDataType dataType, QueryContext context, List<TsFileResource> seqFileResource, List<TsFileResource> unseqFileResource, Filter timeFilter, Filter valueFilter, boolean ascending)
SeriesAggregateReader(PartialPath seriesPath, Set<String> allSensors, TSDataType dataType, QueryContext context, QueryDataSource dataSource, Filter timeFilter, Filter valueFilter, TsFileFilter fileFilter, boolean ascending)
SeriesRawDataBatchReader(PartialPath seriesPath, Set<String> allSensors, TSDataType dataType, QueryContext context, QueryDataSource dataSource, Filter timeFilter, Filter valueFilter, TsFileFilter fileFilter, boolean ascending)
SeriesRawDataBatchReader(PartialPath seriesPath, TSDataType dataType, QueryContext context, List<TsFileResource> seqFileResource, List<TsFileResource> unseqFileResource, Filter timeFilter, Filter valueFilter, boolean ascending)
SeriesReader(PartialPath seriesPath, Set<String> allSensors, TSDataType dataType, QueryContext context, List<TsFileResource> seqFileResource, List<TsFileResource> unseqFileResource, Filter timeFilter, Filter valueFilter, boolean ascending)
SeriesReader(PartialPath seriesPath, Set<String> allSensors, TSDataType dataType, QueryContext context, QueryDataSource dataSource, Filter timeFilter, Filter valueFilter, TsFileFilter fileFilter, boolean ascending)
SeriesReaderByTimestamp(PartialPath seriesPath, Set<String> allSensors, TSDataType dataType, QueryContext context, List<TsFileResource> seqFileResource, List<TsFileResource> unseqFileResource, boolean ascending)
SeriesReaderByTimestamp(PartialPath seriesPath, Set<String> allSensors, TSDataType dataType, QueryContext context, QueryDataSource dataSource, TsFileFilter fileFilter, boolean ascending)

org.apache.iotdb.db.query.reader.universal中QueryContext的使用

参数类型为QueryContext的org.apache.iotdb.db.query.reader.universal中的方法

限定符和类型	方法和说明
void	PriorityMergeReader.addReader(IPointReader reader, PriorityMergeReader.MergeReaderPriority priority, long endTime, QueryContext context)
void	DescPriorityMergeReader.addReader(IPointReader reader, PriorityMergeReader.MergeReaderPriority priority, long endTime, QueryContext context)

org.apache.iotdb.db.query.timegenerator中QueryContext的使用

声明为QueryContext的org.apache.iotdb.db.query.timegenerator中的字段

限定符和类型	字段和说明
protected QueryContext	ServerTimeGenerator.context

参数类型为QueryContext的org.apache.iotdb.db.query.timegenerator中的构造器

构造器和说明
ServerTimeGenerator(QueryContext context)
ServerTimeGenerator(QueryContext context, RawDataQueryPlan queryPlan) Constructor of EngineTimeGenerator.

org.apache.iotdb.db.service.basic中QueryContext的使用

返回QueryContext的org.apache.iotdb.db.service.basic中的方法

限定符和类型	方法和说明
abstract QueryContext	ServiceProvider.genQueryContext(long queryId, boolean debug, long startTime, String statement, long timeout)
QueryContext	StandaloneServiceProvider.genQueryContext(long queryId, boolean debug, long startTime, String statement, long timeout)

参数类型为QueryContext的org.apache.iotdb.db.service.basic中的方法

限定符和类型	方法和说明
QueryDataSet	ServiceProvider.createQueryDataSet(QueryContext context, PhysicalPlan physicalPlan, int fetchSize) create QueryDataSet and buffer it for fetchResults

org.apache.iotdb.db.utils中QueryContext的使用

参数类型为QueryContext的org.apache.iotdb.db.utils中的方法

限定符和类型	方法和说明
static AlignedTimeSeriesMetadata	FileLoaderUtils.loadTimeSeriesMetadata(TsFileResource resource, AlignedPath vectorPath, QueryContext context, Filter filter) Load VectorTimeSeriesMetadata for Vector
static TimeseriesMetadata	FileLoaderUtils.loadTimeSeriesMetadata(TsFileResource resource, PartialPath seriesPath, QueryContext context, Filter filter, Set<String> allSensors)