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Posted to reviews@spark.apache.org by "tom-s-powell (via GitHub)" <gi...@apache.org> on 2024/06/04 15:43:42 UTC
[PR] [SPARK-48524] Make Not IsNull semantically equal to IsNotNull and vice versa [spark]
tom-s-powell opened a new pull request, #46865:
URL: https://github.com/apache/spark/pull/46865
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### What changes were proposed in this pull request?
`Not(IsNull(x))` is made semantically equivalent to `IsNotNull(x)` and vice versa.
### Why are the changes needed?
The following would return `false` whereas it should really be `true`:
```
case a And b if Not(a).semanticEquals(b) =>
If(IsNull(a), Literal.create(null, a.dataType), FalseLiteral)
```
If `a` were `IsNull(x)` and `b` were `IsNotNull(x)`.
### Does this PR introduce _any_ user-facing change?
No.
### How was this patch tested?
Unit tests.
### Was this patch authored or co-authored using generative AI tooling?
No.
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Re: [PR] [SPARK-48524][SQL] Make Not IsNull semantically equal to IsNotNull and vice versa [spark]
Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on PR #46865:
URL: https://github.com/apache/spark/pull/46865#issuecomment-2351245017
We're closing this PR because it hasn't been updated in a while. This isn't a judgement on the merit of the PR in any way. It's just a way of keeping the PR queue manageable.
If you'd like to revive this PR, please reopen it and ask a committer to remove the Stale tag!
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Re: [PR] [SPARK-48524][SQL] Make Not IsNull semantically equal to IsNotNull and vice versa [spark]
Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] closed pull request #46865: [SPARK-48524][SQL] Make Not IsNull semantically equal to IsNotNull and vice versa
URL: https://github.com/apache/spark/pull/46865
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