WIP: Account for constant equivalence properties in union, tests #12562
+707
−402
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Draft
PhysicalSortExpr
#12589Display
impl toEquivalenceProperties
#12590Which issue does this PR close?
Closes #12446
Closes #12414
Rationale for this change
Fixes a bug: #12446
What changes are included in this PR?
TBD
(I hope to break the comments / test refactor out into separate PRs for easier review)
Are these changes tested?
Yes
Are there any user-facing changes?
Fixed bug