Tom Lane wrote:
Heikki Linnakangas <[EMAIL PROTECTED]> writes:
Tom Lane wrote:
Nor will that work for prepared xacts --- you don't want to wait for the
eventual commit, only for PREPARE TRANSACTION to exit its critical
section.
PREPARE TRANSACTION wouldn't set the flag in MyProc; there's no clog
changes to protect from at that point. It would be set in
RecordTransactionCommitPrepared when we're really committing. Just like
we use the CheckpointStartLock today.
Indeed --- you'd better take another look at where we use the
CheckpointStartLock today.
Yeah, while writing the patch I noticed that we really do use it in
EndPrepare to avoid a similar race condition with the twophase state file..
--
Heikki Linnakangas
EnterpriseDB http://www.enterprisedb.com
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