andygrove commented on code in PR #3764:
URL: https://github.com/apache/arrow-datafusion/pull/3764#discussion_r990644503
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datafusion/optimizer/src/optimizer.rs:
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@@ -144,6 +144,10 @@ impl Optimizer {
Arc::new(DecorrelateWhereIn::new()),
Arc::new(ScalarSubqueryToJoin::new()),
Arc::new(SubqueryFilterToJoin::new()),
+ // simplify expressions does not simplify expressions in
subqueries, so we
Review Comment:
This PR just reverts the regression and adds a regression test, but I agree,
would be better to handle it in `simplify_expressions`. I filed
https://github.com/apache/arrow-datafusion/issues/3770 for this.
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