d21a3e1fe5
A WAL sender tracks its WAL reader and logical decoding context as two
static variables, which were left set after being freed for a
START_REPLICATION command. The WAL reader is used for in a physical
replication command, both the WAL reader and the logical decoding
context are used for a logical replication command.
Both variables are now cleared once their contents are released at the
end of each replication command, to keep the release of the resources
and the maintenance of the pointers close to each other. Some more
cleanup is done by WalSndErrorCleanup(), as well, once the WAL reader is
clear.
The assertion added by 879ad9f90e is moved before the execution of a
replication command, checking now that both the WAL reader and the
logical decoding context are never set before the execution of a new
command.
Author: Ayush Tiwari <ayushtiwari.slg01@gmail.com>
Reviewed-by: Michael Paquier <michael@paquier.xyz>
Discussion: https://postgr.es/m/CAJTYsWW+hdmmVt_A4hvGv2_5RWK8-kaOf5ncT65=5i_hyD=BHg@mail.gmail.com
Backpatch-through: 14
PostgreSQL Database Management System
This directory contains the source code distribution of the PostgreSQL database management system.
PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings.
Copyright and license information can be found in the file COPYRIGHT.
General documentation about this version of PostgreSQL can be found at https://www.postgresql.org/docs/18/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/18/installation.html.
The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.