eejbyfeldt commented on PR #12945:
URL: https://github.com/apache/datafusion/pull/12945#issuecomment-2424108102
> Wondering if there is any performance improvement/degradation after the
decorrelation
This should make us able to run quries where we previously failed with
```
This feature is not implemented: Physical plan does not support logical
expression Exists(Exists { subquery: <subquery>, negated: false })
```
so the is no "defined" performance change.
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