Package org.apache.flink.table.api

Class OverWindowPartitionedOrderedPreceding

java.lang.Object

org.apache.flink.table.api.OverWindowPartitionedOrderedPreceding

@PublicEvolving
public final class OverWindowPartitionedOrderedPreceding
extends Object

Partially defined over window with (optional) partitioning, order, and preceding.

Method Summary

Modifier and Type	Method	Description
OverWindow	as(String alias)	Assigns an alias for this window that the following select() clause can refer to.
OverWindow	as(Expression alias)	Assigns an alias for this window that the following select() clause can refer to.
OverWindowPartitionedOrderedPreceding	following(Expression following)	Set the following offset (based on time or row-count intervals) for over window.

Methods inherited from class java.lang.Object

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

Method Details

as

public OverWindow as(String alias)

Assigns an alias for this window that the following select() clause can refer to.

Parameters:

alias - alias for this over window

Returns:

the fully defined over window

as

public OverWindow as(Expression alias)

Assigns an alias for this window that the following select() clause can refer to.

Parameters:

alias - alias for this over window

Returns:

the fully defined over window

following

public OverWindowPartitionedOrderedPreceding following(Expression following)

Set the following offset (based on time or row-count intervals) for over window.

Parameters:

following - following offset that relative to the current row.

Returns:

an over window with defined following