goldmedal commented on code in PR #14474:
URL: https://github.com/apache/datafusion/pull/14474#discussion_r1942781864
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datafusion/optimizer/src/decorrelate_predicate_subquery.rs:
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@@ -1609,13 +1616,14 @@ mod tests {
.build()?;
// not optimized
Review Comment:
I guess that it's also out of date 🤔 ?
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datafusion/sqllogictest/test_files/subquery.slt:
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@@ -389,19 +389,25 @@ where o_orderstatus in (
2
3
+# uncorrelated exists
+query I
+SELECT 1 WHERE EXISTS (SELECT 1)
+----
+1
+
#exists_subquery_with_same_table
#Subquery and outer query refer to the same table.
#It will not be rewritten to join because it is not a correlated subquery.
Review Comment:
Is this comment out of date? I guess we expect to rewrite it to a semi-join
now (?
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