[AURON #2453] Fix filtered aggregation for groups with no matching rows - #2454
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slfan1989 merged 2 commits intoAug 9, 2026
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LGTM. The fix ensures that every discovered group has initialized accumulator slots before aggregate filters are applied, preserving the correct empty-input state for filtered aggregates. The regression coverage for both SUM and COUNT looks good.
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@lyne7-sc Thanks for the contribution! Merged into the master. |
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Thanks for your review, @slfan1989 |
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Which issue does this PR close?
Closes #2453
Rationale for this change
A grouped aggregate may have no rows matching its
FILTERclause. In this case, the group exists but its accumulator may not be initialized, causing an index-out-of-bounds error while producing the result.What changes are included in this PR?
SUMandCOUNT.Are there any user-facing changes?
Yes, bug fix only.
How was this patch tested?
Yes, added regression tests for filtered
SUMandCOUNT.Was this patch authored or co-authored using generative AI tooling?
If yes, include:
Generated-by: gpt-5ASF guidance: https://www.apache.org/legal/generative-tooling.html