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From: Bruce Momjian <bruce@momjian.us>
To: Simon Riggs <simon.riggs@enterprisedb.com>
Cc: Erik Rijkers <er@xs4all.nl>
Cc: Robert Treat <rob@xzilla.net>
Cc: Justin Pryzby <pryzby@telsasoft.com>
Cc: PostgreSQL Hackers <pgsql-hackers@postgresql.org>
Subject: Re: New docs chapter on Transaction Management and related changes
Date: Fri, 14 Oct 2022 15:49:04 -0400
Message-ID: <Y0m9MFq37pfXM0Qu@momjian.us> (raw)
In-Reply-To: <CANbhV-GsC1d9AXAJHyW5d8mf4ZpA0V0QNYw0x7i7--ozR2q15g@mail.gmail.com>
References: <CANbhV-E_iy9fmrErxrCh8TZTyenpfo72Hf_XD2HLDppva4dUNA@mail.gmail.com>
	<20220906203320.GT31833@telsasoft.com>
	<CANbhV-E=ehz3OUMC4Q+D4+LNCne3fM7J8nBxSwNY1ZiYMHdz-Q@mail.gmail.com>
	<CABV9wwN26EH9WU0h47jtRDqPJb3BveYJQNTtb3pegYG9fv_N-Q@mail.gmail.com>
	<CANbhV-F-wNr-Q+yzMGXpUAjSifC_kYT1ecuhSgxipBywQaVx4g@mail.gmail.com>
	<Y0iC70N3ni3xoQkE@momjian.us>
	<22bc0f3a-bd56-d0e3-b8ff-7eec16a540ab@xs4all.nl>
	<Y0iL7jzLfSbj1T38@momjian.us>
	<CANbhV-G9O=W8hKb+aM5PG8X4CqqAbXFGHhS73TVoTK76iBzUzg@mail.gmail.com>
	<CANbhV-GsC1d9AXAJHyW5d8mf4ZpA0V0QNYw0x7i7--ozR2q15g@mail.gmail.com>

On Fri, Oct 14, 2022 at 01:05:14PM +0100, Simon Riggs wrote:
> On Fri, 14 Oct 2022 at 08:55, Simon Riggs <simon.riggs@enterprisedb.com> wrote:
> 
> > In related changes, I've also done some major rewording of the RELEASE
> > SAVEPOINT command, since it was incorrectly described as having "no
> > other user visible behavior". A complex example is given to explain,
> > using the terminology established in the main patch.
> 
> ROLLBACK TO SAVEPOINT also needs some clarification, patch attached.
> 
> (Commentary: It's confusing to me that ROLLBACK TO SAVEPOINT starts a
> new subtransaction, whereas RELEASE SAVEPOINT does not. You might
> imagine they would both start a new subtransaction, but that is not
> the case.)

Agreed, added.


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

  Indecision is a decision.  Inaction is an action.  Mark Batterson






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