| From: | Amit Kapila <akapila(at)postgresql(dot)org> |
|---|---|
| To: | pgsql-committers(at)lists(dot)postgresql(dot)org |
| Subject: | pgsql: Update the docs and comments for decoding of prepared xacts. |
| Date: | 2021-03-01 02:46:33 |
| Message-ID: | E1lGYZt-00088y-93@gemulon.postgresql.org |
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| Thread: | |
| Lists: | pgsql-committers |
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
Branch
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master
Details
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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(+)
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