• Alvaro Herrera's avatar
    Refrain from duplicating data in reorderbuffers · 8aa75e13
    Alvaro Herrera authored
    If a walsender exits leaving data in reorderbuffers, the next walsender
    that tries to decode the same transaction would append its decoded data
    in the same spill files without truncating it first, which effectively
    duplicate the data.  Avoid that by removing any leftover reorderbuffer
    spill files when a walsender starts.
    
    Backpatch to 9.4; this bug has been there from the very beginning of
    logical decoding.
    
    Author: Craig Ringer, revised by me
    Reviewed by: Álvaro Herrera, Petr Jelínek, Masahiko Sawada
    8aa75e13
reorderbuffer.c 88.8 KB