Horton

Make pg_waldump report more detail information about PREPARE TRANSACTION record.

Fujii Masao <fujii@postgresql.org>

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Commit: 7b8a899bdeb638f46e102d1714c079a0874e9fa0
Author: Fujii Masao <fujii@postgresql.org>
Date: 2019-11-13T07:59:17Z
Releases: 13.0 
Make pg_waldump report more detail information about PREPARE TRANSACTION record.

This commit changes xact_desc() so that it reports the detail information about
PREPARE TRANSACTION record, like GID (global transaction identifier),
timestamp at prepare transaction, delete-on-abort/commit relations,
XID of subtransactions, and invalidation messages. These are helpful
when diagnosing 2PC-related troubles.

Author: Fujii Masao
Reviewed-by: Michael Paquier, Andrey Lepikhov, Kyotaro Horiguchi, Julien Rouhaud, Alvaro Herrera
Discussion: https://postgr.es/m/CAHGQGwEvhASad4JJnCv=0dW2TJypZgW_Vpb-oZik2a3utCqcrA@mail.gmail.com

Files

PathChange+/−
src/backend/access/rmgrdesc/standbydesc.c modified +4 −0
src/backend/access/rmgrdesc/xactdesc.c modified +101 −39
src/backend/access/transam/twophase.c modified +1 −55
src/include/access/twophase.h modified +0 −2
src/include/access/xact.h modified +19 −0

Discussion