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| author | Amit Kapila <akapila@postgresql.org> | 2021-03-01 08:14:33 +0530 |
|---|---|---|
| committer | Amit Kapila <akapila@postgresql.org> | 2021-03-01 08:14:33 +0530 |
| commit | b4e3dc7fd420cdc2287f30a638c4affd071f01b2 (patch) | |
| tree | 9b16c0843a81482506e2e4ce4afca9d06ce610d9 /src/backend/utils/init/miscinit.c | |
| parent | 6148656a0be1c6245fbcfcbbeb87541f1b173162 (diff) | |
| download | postgresql-b4e3dc7fd420cdc2287f30a638c4affd071f01b2.tar.gz postgresql-b4e3dc7fd420cdc2287f30a638c4affd071f01b2.zip | |
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.tpnb6eg3yiykzpky@alap3.anarazel.de
Diffstat (limited to 'src/backend/utils/init/miscinit.c')
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