Minor: Split equivalence code into smaller modules #8235
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alamb
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alamb
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Nov 16, 2023
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| // Licensed to the Apache Software Foundation (ASF) under one | |||
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This code was simply moved around, no algorithmic changes were made
alamb
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Thanks for this. I agree that it is a good idea. One minor timing issue: @mustafasrepo is currently working on a few finishing touches to this code, so doing this next week will probably (1) enable us to see the full picture before doing the re-org, (2) save us some time by avoiding merge conflicts |
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Sounds good -- I'll leave this as a draft until @mustafasrepo 's in flight work |
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Now that the new code has been merged, I think this is possible now. However, I don't think I can salvage this PR -- it would make more sense to start from scratch |
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Field #8633 to track doing this |
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Which issue does this PR close?
Part of #8064
Rationale for this change
As equivalence and ordering become ever more important, I would like to break the code up into smaller modules to make it harder to handle.
At almost 3000 lines with several large classes that are overlapping. the existing
equivalence.rsis hard to understand.I would like to break it up into smaller modules.
In fact I didn't even realize there were so many equivalence tracking structures until I started looking at the code more closely.
What changes are included in this PR?
Move
EquivalenceClass,EquivalenceGroup,OrderingEquivalenceClass,ProjectionMapping,EquivalenceProperties;and into their own modules, and then update some internal apis to keep the interfaces clearAre these changes tested?
Are there any user-facing changes?
Existing tests