pyspark.sql.WindowSpec.rowsBetween¶
-
WindowSpec.
rowsBetween
(start, end)[source]¶ Defines the frame boundaries, from start (inclusive) to end (inclusive).
Both start and end are relative positions from the current row. For example, “0” means “current row”, while “-1” means the row before the current row, and “5” means the fifth row after the current row.
We recommend users use
Window.unboundedPreceding
,Window.unboundedFollowing
, andWindow.currentRow
to specify special boundary values, rather than using integral values directly.New in version 1.4.0.
- Parameters
- startint
boundary start, inclusive. The frame is unbounded if this is
Window.unboundedPreceding
, or any value less than or equal to max(-sys.maxsize, -9223372036854775808).- endint
boundary end, inclusive. The frame is unbounded if this is
Window.unboundedFollowing
, or any value greater than or equal to min(sys.maxsize, 9223372036854775807).