[SPARK-39259][SQL][3.3] Evaluate timestamps consistently in subqueries #36752
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Can one of the admins verify this patch? |
MaxGekk
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+1, LGTM. Merging to 3.3. |
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Jun 3, 2022
### What changes were proposed in this pull request? Apply the optimizer rule ComputeCurrentTime consistently across subqueries. This is a backport of #36654. ### Why are the changes needed? At the moment timestamp functions like now() can return different values within a query if subqueries are involved ### Does this PR introduce _any_ user-facing change? No ### How was this patch tested? A new unit test was added Closes #36752 from olaky/SPARK-39259-spark_3_3. Authored-by: Ole Sasse <[email protected]> Signed-off-by: Max Gekk <[email protected]>
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Thanks for picking this up so quickly, I wanted to first see if the build passes and then update the comment |
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What changes were proposed in this pull request?
Apply the optimizer rule ComputeCurrentTime consistently across subqueries.
This is a backport of #36654.
Why are the changes needed?
At the moment timestamp functions like now() can return different values within a query if subqueries are involved
Does this PR introduce any user-facing change?
No
How was this patch tested?
A new unit test was added