public static class RexImpTable.LagImplementor extends RexImpTable.LeadLagImplementor
LAG
windowed aggregate function.WinAggImplementor.SeekType
Modifier | Constructor and Description |
---|---|
protected |
LagImplementor() |
getStateType, implementAdd, implementReset, implementResult, needCacheWhenFrameIntact
Copyright © 2012–2019 The Apache Software Foundation. All rights reserved.