Horton

Re: getting rid of SnapshotNow

Bruce Momjian <bruce@momjian.us>

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From: Bruce Momjian <bruce@momjian.us>
To: Andres Freund <andres@2ndquadrant.com>
Cc: Robert Haas <robertmhaas@gmail.com>, Tom Lane <tgl@sss.pgh.pa.us>, pgsql-hackers@postgresql.org
Date: 2013-08-05T16:17:37Z
Lists: pgsql-hackers 
On Mon, Aug  5, 2013 at 05:22:28PM +0200, Andres Freund wrote:
> On 2013-08-05 11:17:08 -0400, Bruce Momjian wrote:
> > One interesting aspect of this patch is that the backend code is no
> > longer even checking HEAP_MOVED_OFF and HEAP_MOVED_IN.  However, we
> > can't reuse those bits because they could be set from pre-9.0 rows.
> 
> The other tqual.c .satisfies routines still check it - and have to do
> so.
> 
> It'd be nice to get rid of that, but this patch doesn't seem to get us
> nearer towards it :(

Oh, sorry, thanks for pointing that out --- somehow I missed it.

-- 
  Bruce Momjian  <bruce@momjian.us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

  + It's impossible for everything to be true. +