Horton

Custom WAL Resource Managers.

Jeff Davis <jdavis@postgresql.org>

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Commit: 5c279a6d350205cc98f91fb8e1d3e4442a6b25d1
Author: Jeff Davis <jdavis@postgresql.org>
Date: 2022-04-07T06:06:46Z
Releases: 15.0 
Custom WAL Resource Managers.

Allow extensions to specify a new custom resource manager (rmgr),
which allows specialized WAL. This is meant to be used by a Table
Access Method or Index Access Method.

Prior to this commit, only Generic WAL was available, which offers
support for recovery and physical replication but not logical
replication.

Reviewed-by: Julien Rouhaud, Bharath Rupireddy, Andres Freund
Discussion: https://postgr.es/m/ed1fb2e22d15d3563ae0eb610f7b61bb15999c0a.camel%40j-davis.com

Files

PathChange+/−
doc/src/sgml/config.sgml modified +2 −2
doc/src/sgml/custom-rmgr.sgml added +98 −0
doc/src/sgml/filelist.sgml modified +1 −0
doc/src/sgml/func.sgml modified +19 −0
doc/src/sgml/generic-wal.sgml modified +17 −3
doc/src/sgml/postgres.sgml modified +1 −0
doc/src/sgml/ref/pg_waldump.sgml modified +8 −0
src/backend/access/transam/rmgr.c modified +123 −1
src/backend/access/transam/xlogreader.c modified +1 −1
src/backend/access/transam/xlogrecovery.c modified +11 −22
src/backend/postmaster/postmaster.c modified +6 −0
src/backend/replication/logical/decode.c modified +4 −4
src/backend/utils/init/miscinit.c modified +2 −0
src/backend/utils/misc/guc.c modified +68 −9
src/bin/pg_rewind/parsexlog.c modified +7 −4
src/bin/pg_waldump/pg_waldump.c modified +48 −18
src/bin/pg_waldump/rmgrdesc.c modified +60 −1
src/bin/pg_waldump/rmgrdesc.h modified +1 −1
src/include/access/rmgr.h modified +18 −1
src/include/access/xlog_internal.h modified +21 −2
src/include/catalog/catversion.h modified +1 −1
src/include/catalog/pg_proc.dat modified +7 −0
src/include/miscadmin.h modified +1 −0
src/include/utils/guc.h modified +1 −0

Documentation touched

Discussion