Re: PG 18 release notes draft committed - Mailing list pgsql-hackers

From Bruce Momjian
Subject Re: PG 18 release notes draft committed
Date
Msg-id aBq0myUhKHLNq2d9@momjian.us
Whole thread Raw
In response to Re: PG 18 release notes draft committed  (David Rowley <dgrowleyml@gmail.com>)
Responses Re: PG 18 release notes draft committed
List pgsql-hackers
On Wed, May  7, 2025 at 09:27:14AM +1200, David Rowley wrote:
> On Wed, 7 May 2025 at 07:44, Bruce Momjian <bruce@momjian.us> wrote:
> > I think what you are saying is that this has to do with partition
> > processing of joins, but not the pruning process.  I don't think a
> > non-partition joins are likely to hit 32 EquivalenceClasses.
> 
> A query such as: SELECT * FROM table_with_lots_of_partitions ORDER BY
> col; will plan much faster now. No joins there.

Ah, interesting.  I am guessing the ORDER BY requires the
EquivalenceClasses items.  Applied patch attached.  I don't think we can
make more precise wording for this item.

-- 
  Bruce Momjian  <bruce@momjian.us>        https://momjian.us
  EDB                                      https://enterprisedb.com

  Do not let urgent matters crowd out time for investment in the future.

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