Package org.apache.flink.table.planner.plan.nodes.exec.stream

Class StreamExecGroupAggregate

java.lang.Object

org.apache.flink.table.planner.plan.nodes.exec.ExecNodeBase<RowData>

org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecAggregateBase

org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecGroupAggregate

All Implemented Interfaces:

ExecNode<RowData>, ExecNodeTranslator<RowData>, FusionCodegenExecNode, SingleTransformationTranslator<RowData>, StreamExecNode<RowData>

@ExecNodeMetadata(name="stream-exec-group-aggregate",
                  version=1,
                  consumedOptions={"table.exec.mini-batch.enabled","table.exec.mini-batch.size"},
                  producedTransformations="group-aggregate",
                  minPlanVersion=v1_15,
                  minStateVersion=v1_15)
public class StreamExecGroupAggregate
extends StreamExecAggregateBase

Stream ExecNode for unbounded group aggregate.

This node does support un-splittable aggregate function (e.g. STDDEV_POP).

Field Summary

Fields

Modifier and Type	Field	Description
static String	GROUP_AGGREGATE_TRANSFORMATION
static String	STATE_NAME

Fields inherited from class org.apache.flink.table.planner.plan.nodes.exec.stream.StreamExecAggregateBase

FIELD_NAME_AGG_CALL_NEED_RETRACTIONS, FIELD_NAME_AGG_CALLS, FIELD_NAME_GENERATE_UPDATE_BEFORE, FIELD_NAME_GROUPING, FIELD_NAME_NEED_RETRACTION

Fields inherited from interface org.apache.flink.table.planner.plan.nodes.exec.ExecNode

FIELD_NAME_CONFIGURATION, FIELD_NAME_DESCRIPTION, FIELD_NAME_ID, FIELD_NAME_INPUT_PROPERTIES, FIELD_NAME_OUTPUT_TYPE, FIELD_NAME_STATE, FIELD_NAME_TYPE

Constructor Summary

Constructors

Constructor	Description
StreamExecGroupAggregate(int id, ExecNodeContext context, ReadableConfig persistedConfig, int[] grouping, org.apache.calcite.rel.core.AggregateCall[] aggCalls, boolean[] aggCallNeedRetractions, boolean generateUpdateBefore, boolean needRetraction, List<StateMetadata> stateMetadataList, List<InputProperty> inputProperties, RowType outputType, String description)
StreamExecGroupAggregate(ReadableConfig tableConfig, int[] grouping, org.apache.calcite.rel.core.AggregateCall[] aggCalls, boolean[] aggCallNeedRetractions, boolean generateUpdateBefore, boolean needRetraction, Long stateTtlFromHint, InputProperty inputProperty, RowType outputType, String description)

Method Summary

Modifier and Type	Method	Description
protected Transformation<RowData>	translateToPlanInternal(org.apache.flink.table.planner.delegation.PlannerBase planner, ExecNodeConfig config)	Internal method, translates this node into a Flink operator.

Methods inherited from class org.apache.flink.table.planner.plan.nodes.exec.ExecNodeBase

accept, createFormattedTransformationDescription, createFormattedTransformationName, createTransformationDescription, createTransformationMeta, createTransformationMeta, createTransformationName, createTransformationUid, getContextFromAnnotation, getDescription, getId, getInputEdges, getInputProperties, getOutputType, getPersistedConfig, getSimplifiedName, getTransformation, inputsContainSingleton, replaceInputEdge, setCompiled, setInputEdges, supportFusionCodegen, translateToFusionCodegenSpec, translateToFusionCodegenSpecInternal, translateToPlan

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flink.table.planner.plan.nodes.exec.ExecNode

accept, getDescription, getId, getInputEdges, getInputProperties, getOutputType, replaceInputEdge, setCompiled, setInputEdges

Methods inherited from interface org.apache.flink.table.planner.plan.nodes.exec.ExecNodeTranslator

translateToPlan

Methods inherited from interface org.apache.flink.table.planner.plan.nodes.exec.FusionCodegenExecNode

supportFusionCodegen, translateToFusionCodegenSpec

Field Detail

GROUP_AGGREGATE_TRANSFORMATION

public static final String GROUP_AGGREGATE_TRANSFORMATION

See Also:

Constant Field Values

STATE_NAME

public static final String STATE_NAME

See Also:

Constant Field Values

Constructor Detail

StreamExecGroupAggregate

public StreamExecGroupAggregate(ReadableConfig tableConfig,
                                int[] grouping,
                                org.apache.calcite.rel.core.AggregateCall[] aggCalls,
                                boolean[] aggCallNeedRetractions,
                                boolean generateUpdateBefore,
                                boolean needRetraction,
                                @Nullable
                                Long stateTtlFromHint,
                                InputProperty inputProperty,
                                RowType outputType,
                                String description)

StreamExecGroupAggregate

public StreamExecGroupAggregate(int id,
                                ExecNodeContext context,
                                ReadableConfig persistedConfig,
                                int[] grouping,
                                org.apache.calcite.rel.core.AggregateCall[] aggCalls,
                                boolean[] aggCallNeedRetractions,
                                boolean generateUpdateBefore,
                                boolean needRetraction,
                                @Nullable
                                List<StateMetadata> stateMetadataList,
                                List<InputProperty> inputProperties,
                                RowType outputType,
                                String description)

Method Detail

translateToPlanInternal

protected Transformation<RowData> translateToPlanInternal(org.apache.flink.table.planner.delegation.PlannerBase planner,
                                                          ExecNodeConfig config)

Description copied from class: ExecNodeBase

Internal method, translates this node into a Flink operator.

Specified by:

translateToPlanInternal in class ExecNodeBase<RowData>

Parameters:

planner - The planner.

config - per-ExecNode configuration that contains the merged configuration from various layers which all the nodes implementing this method should use, instead of retrieving configuration from the planner. For more details check ExecNodeConfig.