On 2015-12-02 12:25:37 +0100, Joel Jacobson wrote:
> On Wed, Dec 2, 2015 at 12:19 PM, Andres Freund <andres@anarazel.de> wrote:
> > The significant changes are in 9.5.
>
> Will multixact truncations be WAL logged in 9.5?
Yes.
C.f. the release notes:
* Rework truncation of the multixact commit log to be properly WAL-logged (Andres Freund)
This makes things substantially simpler and more robust.
The relevant commits are
commit aa29c1ccd9f785f9365809f5133e5491acc7ae53
Author: Andres Freund <andres@anarazel.de>
Date: 2015-09-26 19:04:25 +0200
Remove legacy multixact truncation support. ...
Backpatch: 9.5
and
commit 4f627f897367f15702d59973f75f6391d5d3e06f
Author: Andres Freund <andres@anarazel.de>
Date: 2015-09-26 19:04:25 +0200
Rework the way multixact truncations work. ...
Backpatch: 9.5