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[SPARK-35362][SQL] Update null count in the column stats for UNION operator stats estimation #32494
[SPARK-35362][SQL] Update null count in the column stats for UNION operator stats estimation #32494
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Retest this please |
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cc @wzhfy too |
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...main/scala/org/apache/spark/sql/catalyst/plans/logical/statsEstimation/UnionEstimation.scala
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Looks almost good and thank you for this work, @shahidki31
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Looks fine otherwise. |
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Thank you, @shahidki31 . Merged to master. |
Thanks a lot @maropu for the reviews. |
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What changes were proposed in this pull request?
Updating column stats for Union operator stats estimation
Why are the changes needed?
This is a followup PR to update the null count also in the Union stats operator estimation. #30334
Does this PR introduce any user-facing change?
No
How was this patch tested?
Updated UTs, manual testing