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

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

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