On 12/03/2014 03:54 PM, Alvaro Herrera wrote:
> Keep track of transaction commit timestamps
>
> Transactions can now set their commit timestamp directly as they commit,
> or an external transaction commit timestamp can be fed from an outside
> system using the new function TransactionTreeSetCommitTsData(). This
> data is crash-safe, and truncated at Xid freeze point, same as pg_clog.
>
> This module is disabled by default because it causes a performance hit,
> but can be enabled in postgresql.conf requiring only a server restart.
>
> A new test in src/test/modules is included.
>
> Catalog version bumped due to the new subdirectory within PGDATA and a
> couple of new SQL functions.
>
> Authors: Álvaro Herrera and Petr Jelínek
>
> Reviewed to varying degrees by Michael Paquier, Andres Freund, Robert
> Haas, Amit Kapila, Fujii Masao, Jaime Casanova, Simon Riggs, Steven
> Singer, Peter Eisentraut
this broke the docs build:
http://www.pgbuildfarm.org/cgi-bin/show_log.pl?nm=guaibasaurus&dt=2014-12-03%2016%3A17%3A01
Stefan