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POC: Use IndexSet rather than Vec for OrderingEquivalenceClass #14136

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@alamb alamb commented Jan 15, 2025

WIP as I am still in the process of

  • I need to fix resolve_overlap
  • Test timing

Which issue does this PR close?

Rationale 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 OrderingEquivalenceClass

Are these changes tested?

by existing CI

Are there any user-facing changes?

@alamb alamb force-pushed the alamb/exponential_planning_2 branch from 832975c to d5f3819 Compare January 16, 2025 19:33
@github-actions github-actions bot added core Core DataFusion crate proto Related to proto crate labels Jan 16, 2025
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alamb commented Jan 16, 2025

This doesn't seem to be super promising for now, so closing it

@alamb alamb closed this Jan 16, 2025
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