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Re: [PATCHES] Proposed patch: synchronized_scanning GUC variable

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Bruce Momjian <bruce(at)momjian(dot)us>
Cc: Simon Riggs <simon(at)2ndquadrant(dot)com>, Neil Conway <neilc(at)samurai(dot)com>, Gregory Stark <stark(at)enterprisedb(dot)com>, "Jonah H(dot) Harris" <jonah(dot)harris(at)gmail(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: [PATCHES] Proposed patch: synchronized_scanning GUC variable
Date: 2008-01-31 05:42:07
Message-ID: 415.1201758127@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-hackerspgsql-patches
Bruce Momjian <bruce(at)momjian(dot)us> writes:
> OK, but keep in mind if we use synchronized_seqscans in pg_dump we will
> have to recognize that GUC forever.

No, because it's being used on the query side, not in the emitted dump.
We have *never* promised that pg_dump version N could dump from server
version N+1 .., in fact, personally I'd like to make that case be a hard
error, rather than something people could override with -i.

			regards, tom lane

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