Window aggregate FILTER evaluates arguments for rejected rows

[lyne7-sc]

Describe the bug

Window aggregates evaluate their argument expressions before applying the aggregate FILTER.

This can cause a query to fail while evaluating rows that should not participate in the window aggregate.

To Reproduce

SELECT
  id,
  SUM(10 / x) FILTER (WHERE x <> 0) OVER (ORDER BY id) AS running_sum
FROM (
  VALUES
    (1, 2),
    (2, 0),
    (3, 5)
) AS t(id, x)
ORDER BY id;

The query fails even though the row where x = 0 is rejected by the aggregate filter:

Arrow error: Divide by zero error

Expected behavior

The aggregate filter should prevent argument evaluation for rejected rows, and the query should return:

1 5
2 5
3 7

Additional context

This is the window-aggregate counterpart of #24443.

#24444 addresses the same evaluation-order issue for grouped aggregates, but window aggregates use a separate physical evaluation path and remain affected.

[lyne7-sc]

take