Thread: [COMMITTERS] pgsql: hash: Fix write-ahead logging bugs related to init forks.
[COMMITTERS] pgsql: hash: Fix write-ahead logging bugs related to init forks.
From
Robert Haas
Date:
hash: Fix write-ahead logging bugs related to init forks. One, logging for CREATE INDEX was oblivious to the fact that when an unlogged table is created, *only* operations on the init fork should be logged. Two, init fork buffers need to be flushed after they are written; otherwise, a filesystem-level copy following recovery may do the wrong thing. (There may be a better fix for this issue than the one used here, but this is transposed from the similar logic already present in XLogReadBufferForRedoExtended, and a broader refactoring after beta2 seems inadvisable.) Amit Kapila, reviewed by Ashutosh Sharma, Kyotaro Horiguchi, and Michael Paquier Discussion: http://postgr.es/m/CAA4eK1JpcMsEtOL_J7WODumeEfyrPi7FPYHeVdS7fyyrCrgp4w@mail.gmail.com Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/09c2e7cd2ff0b884625c37ce8249832820c58710 Modified Files -------------- src/backend/access/hash/hash_xlog.c | 27 +++++++++++++++++++++++++++ src/backend/access/hash/hashpage.c | 23 ++++++++++++++++------- 2 files changed, 43 insertions(+), 7 deletions(-)