postgres-github.git / summary / log / commit / refs

commit    29e7dbf5e4daa8fafc2b18a1551e7b31c8847340
Author:   Andres Freund <andres@anarazel.de>
Date:     Tue Apr 07 13:11:07 2026 +0000

    Minimal fix for WAIT FOR ... MODE 'standby_flush'
    
    The investigation into the negative test performance impact of 7e8aeb9e483
    lead to discovering that there are a few issues with WAIT FOR.
    
    This commit is just a minimal fix to prevent hangs in standby_flush mode, due
    to WAIT FOR ... 'standby_flush' seeing a 0 LSN if a newly started walreceiver
    does not receive any writes, because the stanby is already caught up.
    
    There are several other issues and this is isn't necessarily the best fix. But
    this way we get the hangs out of the way.
    
    Reported-by: Tom Lane <tgl@sss.pgh.pa.us>
    Discussion: https://postgr.es/m/zqbppucpmkeqecfy4s5kscnru4tbk6khp3ozqz6ad2zijz354k@w4bdf4z3wqoz

[parent: 8fb95a8ab6e5]