Re: SSI non-serializable UPDATE performance
Simon Riggs <simon@2ndquadrant.com>
From: Simon Riggs <simon@2ndQuadrant.com>
To: Kevin Grittner <Kevin.Grittner@wicourts.gov>
Cc: Dan Ports <drkp@csail.mit.edu>, pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2011-04-28T07:40:10Z
Lists: pgsql-hackers
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Add fast paths for cases when no serializable transactions are running.
- 02e6a115cc61 9.1.0 cited
On Wed, Apr 27, 2011 at 7:15 PM, Kevin Grittner <Kevin.Grittner@wicourts.gov> wrote: > Simon Riggs <simon@2ndQuadrant.com> wrote: > >> Reading the code, IIUC, we check for RW conflicts after each write >> but only if the writer is running a serializable transaction. > > Correct as far as that statement goes. Thanks. I'm surprised by that though, it seems weird. -- Simon Riggs http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services