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help / color / mirror / Atom feedFrom: Robert Haas <[email protected]>
To: Amit Langote <[email protected]>
Cc: Jacob Champion <[email protected]>
Cc: Zhihong Yu <[email protected]>
Cc: David Rowley <[email protected]>
Cc: Tom Lane <[email protected]>
Cc: PostgreSQL-development <[email protected]>
Subject: Re: generic plans and "initial" pruning
Date: Wed, 27 Jul 2022 12:27:06 -0400
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On Tue, Jul 26, 2022 at 11:01 PM Amit Langote <[email protected]> wrote:
> Needed to be rebased again, over 2d04277121f this time.
0001 adds es_part_prune_result but does not use it, so maybe the
introduction of that field should be deferred until it's needed for
something.
I wonder whether it's really necessary to added the PartitionPruneInfo
objects to a list in PlannerInfo first and then roll them up into
PlannerGlobal later. I know we do that for range table entries, but
I've never quite understood why we do it that way instead of creating
a flat range table in PlannerGlobal from the start. And so by
extension I wonder whether this table couldn't be flat from the start
also.
--
Robert Haas
EDB: http://www.enterprisedb.com
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Subject: Re: generic plans and "initial" pruning
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