[BugFix] "first_value" with "ignore nulls" and "rows between unbounded preceding and unbounded following result is wrong (backport #56467) #56529
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…d preceding and unbounded following result is wrong (#56467) Signed-off-by: before-Sunrise <[email protected]> (cherry picked from commit e9fba8d)
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Why I'm doing:
fix #56387
What I'm doing:
for "first_value" with "ignore nulls" and "rows between unbounded preceding and unbounded following, we can't rewrite it as rows between unbounded preceding and CURRENT_ROW, since rows between unbounded preceding and CURRENT_ROW can be all null
Fixes #issue
What type of PR is this:
Does this PR entail a change in behavior?
If yes, please specify the type of change:
Checklist: