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From: Tom Lane <tgl@sss.pgh.pa.us>
To: David Rowley <dgrowleyml@gmail.com>
Cc: Nathan Bossart <nathandbossart@gmail.com>
Cc: andrewbille@gmail.com
Cc: pgsql-bugs@lists.postgresql.org
Subject: Re: BUG #19086: pg_dump --data-only selects and do not uses index definitions for the dumped tables.
Date: Wed, 15 Oct 2025 21:31:29 -0400
Message-ID: <1347707.1760578289@sss.pgh.pa.us> (raw)
In-Reply-To: <CAApHDvoMvU2=bDKLDZq1y4FM7k5FsOgogsiqJ3gaJ+G8yLTq-A@mail.gmail.com>
References: <19086-871ff11017d03dc5@postgresql.org>
	<aO6mUj9H2WpEFylG@nathan>
	<1000041.1760471415@sss.pgh.pa.us>
	<aO7IoIEnQDbtFzrs@nathan>
	<CAApHDvoU2O-_zKNL-toHwkDcMXCzzvgRUTnA3baEEhCB4vqMRw@mail.gmail.com>
	<aO_KwnHm2AVn0E4m@nathan>
	<CAApHDvrcM4G0==52jFoAvmxk6ZRjXKq7nkik=fqq6BH=dSJsYA@mail.gmail.com>
	<1324003.1760565328@sss.pgh.pa.us>
	<CAApHDvrffhKALh3jQM6Kmar5nt=2xgHC_0ErhTFvM32b_JT-Cw@mail.gmail.com>
	<1334977.1760571380@sss.pgh.pa.us>
	<CAApHDvp-BsfUne0TckE5f8-E9Ou3+2+fT0aN2OB+ccC88zy-yQ@mail.gmail.com>
	<1342348.1760575547@sss.pgh.pa.us>
	<CAApHDvoMvU2=bDKLDZq1y4FM7k5FsOgogsiqJ3gaJ+G8yLTq-A@mail.gmail.com>

David Rowley <dgrowleyml@gmail.com> writes:
> Just to put that to the test, I tried the attached.

I'm confused by all the extraneous changes in this?

> i.e about 3.5x faster with ignore_system_indexes and 38% faster without.

Very promising, but I'm still confused.

			regards, tom lane





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  Subject: Re: BUG #19086: pg_dump --data-only selects and do not uses index definitions for the dumped tables.
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