Package org.apache.flink.table.planner.plan.metadata

Interface FlinkMetadata.WindowProperties

All Superinterfaces:

org.apache.calcite.rel.metadata.Metadata

Enclosing class:

FlinkMetadata

public static interface FlinkMetadata.WindowProperties
extends org.apache.calcite.rel.metadata.Metadata

Metadata about the window properties of a RelNode. The window properties are provided originally from window table-valued function and are propagated in the RelNode tree. The information of window properties include columns of window_start, window_end, window_time, and time attribute index and types.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static interface	FlinkMetadata.WindowProperties.Handler	Handler API.

Field Summary

Fields

Modifier and Type	Field	Description
static final org.apache.calcite.rel.metadata.MetadataDef<FlinkMetadata.WindowProperties>	DEF
static final Method	METHOD

Method Summary

Modifier and Type	Method	Description
RelWindowProperties	getWindowProperties()

Methods inherited from interface org.apache.calcite.rel.metadata.Metadata

rel

Field Details

METHOD

static final Method METHOD

DEF

static final org.apache.calcite.rel.metadata.MetadataDef<FlinkMetadata.WindowProperties> DEF

Method Details

getWindowProperties

RelWindowProperties getWindowProperties()