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From: Tom Lane <[email protected]>
To: Robert Haas <[email protected]>
Cc: [email protected] <[email protected]>
Subject: Re: allowing extensions to control planner behavior
Date: Tue, 27 Aug 2024 12:56:09 -0400
Message-ID: <[email protected]> (raw)
In-Reply-To: <CA+TgmobN=JiV8uw69aNjSazQm_bpWNGsSCoR18JzpS9b4uhusA@mail.gmail.com>
References: <CA+TgmoZY+baV-T-5ifDn6P=L=aV-VkVBrPmi0TQkcEq-5Finww@mail.gmail.com>
	<[email protected]>
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	<CA+TgmobN=JiV8uw69aNjSazQm_bpWNGsSCoR18JzpS9b4uhusA@mail.gmail.com>

Robert Haas <[email protected]> writes:
> In that vein, here's a new patch set where I've added a second patch
> that allows extensions to control choice of index.

I'm minus-several on this bit, because that is a solved problem and
we really don't need to introduce More Than One Way To Do It.  The
intention has always been that get_relation_info_hook can editorialize
on the rel's indexlist by removing entries (or adding fake ones,
in the case of hypothetical-index extensions).  For that matter,
if you really want to do it by modifying the IndexInfo rather than
deleting it from the list, that's already possible: just set
indexinfo->hypothetical = true.

			regards, tom lane

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