Re: [sqlsmith] Failed assertion during partition pruning - Mailing list pgsql-hackers

From Tom Lane
Subject Re: [sqlsmith] Failed assertion during partition pruning
Date
Msg-id 3288952.1612158537@sss.pgh.pa.us
Whole thread Raw
In response to Re: [sqlsmith] Failed assertion during partition pruning  (David Rowley <dgrowleyml@gmail.com>)
Responses Re: [sqlsmith] Failed assertion during partition pruning  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-hackers
David Rowley <dgrowleyml@gmail.com> writes:
> What I can't understand is why you changed to a List-of-Lists rather
> than a List-of-Relids.

Yeah, I spent no effort on micro-optimizing the data structure.  I figured
that since we were not including leaf partitions, there would never be
enough rels involved to worry about.  Perhaps that's wrong though.

> Parent RT indexes are guaranteed to be lower than their children RT
> indexes,

I was intentionally avoiding that assumption ;-).  Maybe it buys enough
to be worth the loss of generality, but ...

            regards, tom lane



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