suibianwanwank commented on code in PR #16234:
URL: https://github.com/apache/datafusion/pull/16234#discussion_r2126673547
##########
datafusion/physical-expr/src/window/window_expr.rs:
##########
@@ -186,6 +186,10 @@ pub trait AggregateWindowExpr: WindowExpr {
accumulator: &mut Box<dyn Accumulator>,
) -> Result<ScalarValue>;
+ /// Indicates whether this window function always produces the same result
+ /// for all rows in the partition.
+ fn is_constant(&self) -> bool;
Review Comment:
Done.
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: github-unsubscr...@datafusion.apache.org
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: github-unsubscr...@datafusion.apache.org
For additional commands, e-mail: github-h...@datafusion.apache.org
