Re: pg_recvlogical: Prevent flushed data from being re-sent after restarting replication

Mircea Cadariu <cadariu.mircea@gmail.com>

From: Mircea Cadariu <cadariu.mircea@gmail.com>

To: Fujii Masao <masao.fujii@gmail.com>, PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>

Date: 2025-11-19T14:36:56Z

Lists: pgsql-hackers

Attachments

v1-0001-Test-demonstrating-pg_recvlogical-receives-duplic.patch (text/plain)

Hi,


Update: I added another test to the attached test-only patch. This new 
test uses pg_terminate_backend to trigger reconnection.

Assuming the tests are fully correct (your input appreciated on this) we 
can use them to validate the solution.


Kind regards,

Mircea Cadariu