Re: [PATCH] Transaction traceability - txid_status(bigint)

Craig Ringer <craig@2ndquadrant.com>

From: Craig Ringer <craig@2ndquadrant.com>

To: Andres Freund <andres@anarazel.de>

Cc: Robert Haas <robertmhaas@gmail.com>, PostgreSQL Hackers <pgsql-hackers@postgresql.org>, Jim Nasby <Jim.Nasby@bluetreble.com>

Date: 2016-09-01T05:08:45Z

Lists: pgsql-hackers

Attachments

0001-Introduce-txid_status-bigint-to-get-status-of-an-xac.patch (text/x-patch) patch 0001
0002-Add-txid_convert_if_recent-to-get-the-32-bit-xid-fro.patch (text/x-patch) patch 0002

On 29 August 2016 at 15:53, Craig Ringer <craig@2ndquadrant.com> wrote:

> Said better approach attached in revised series. Thanks.

Here's another minor update to the txid_status() and
txid_convert_if_recent() patches. The only change is moving
get_xid_in_recent_past from src/backend/utils/adt/txid.c to
src/backend/access/transam/xlog.c to permit its use by other code.
Specifically, I think it'll be needed for logical decoding on standby.


-- 
 Craig Ringer                   http://www.2ndQuadrant.com/
 PostgreSQL Development, 24x7 Support, Training & Services

Commits

Add a txid_status function.
- 857ee8e391ff 10.0 landed
Track the oldest XID that can be safely looked up in CLOG.
- ea42cc18c353 10.0 landed