On Wed, 2009-10-21 at 19:37 +0300, Heikki Linnakangas wrote: > So, I'm quite eager to just revert all those lock_twophase_recover() > changes, and always rely on the "grant lock to dummy proc, then > release > it in startup process" method. If we don't want to rely on that, > PostPrepare_Locks is an example of how to transfer lock ownership from > one process to another correctly.
Yes, I realised after I wrote it that PostPrepare already does that switch, just been busy with other stuff to switch over the code. I think we do need some special code because of handling whole lock queues. i.e. if there is a backend requesting an AEL but a prepared xact has it, the lock queue will initially be Backend->Startup and needs to end up looking like Backend->DummyProc. -- Simon Riggs www.2ndQuadrant.com -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
