POC: Use IndexSet rather than Vec
for OrderingEquivalenceClass
#14136
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WIP as I am still in the process of
resolve_overlap
Which issue does this PR close?
UNION
andORDER BY
queries #13748Rationale for this change
I am trying to make many of the overlap algorthms constant time rather than polynomial in the number of expressions
What changes are included in this PR?
Use IndexSet rather than
Vec
for OrderingEquivalenceClassAre these changes tested?
by existing CI
Are there any user-facing changes?