Update the docs and comments for decoding of prepared xacts. Commit a271a1b50e introduced decoding at prepare time in ReorderBuffer. This can lead to deadlock for out-of-core logical replication solutions that uses this feature to build distributed 2PC in case such transactions lock [user] catalog tables exclusively. They need to inform users to not have locks on catalog tables (via explicit LOCK command) in such transactions.
Reported-by: Andres Freund Discussion: https://postgr.es/m/20210222222847.tpnb6eg3yiykz...@alap3.anarazel.de Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/b4e3dc7fd420cdc2287f30a638c4affd071f01b2 Modified Files -------------- doc/src/sgml/logicaldecoding.sgml | 24 ++++++++++++++++++++++++ src/backend/replication/logical/decode.c | 14 ++++++++++++++ 2 files changed, 38 insertions(+)
