Spark inserts WindowGroupLimitExec to push a rank/row-number limit below a window (for example WHERE rn <= 10 over a ranking window). Comet does not support this operator today, so plans containing it fall back to Spark.
It is currently marked as planned in the operator support reference under Window.
Spark inserts
WindowGroupLimitExecto push a rank/row-number limit below a window (for exampleWHERE rn <= 10over a ranking window). Comet does not support this operator today, so plans containing it fall back to Spark.It is currently marked as planned in the operator support reference under Window.