Re: Use extended statistics to estimate (Var op Var) clauses

> On Jun 13, 2021, at 1:28 PM, Tomas Vondra  wrote:
> 
> Here is a slightly updated version of the patch

Thanks for taking this up again!

Applying the new test cases from your patch, multiple estimates have gotten better.  That looks good.  I wrote a few extra test cases and saw no change, which is fine.  I was looking for regressions where the estimates are now worse than before.  Do you expect there to be any such cases?

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Mark Dilger
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