Alvaro Herrera <alvherre@dcc.uchile.cl> writes:
> I'll work on adding the Xid-cache to PGPROC and using that in
> TransactionIdIsInProgress and the tqual routines. If you want to work
> on that let me know and I'll handle things like the password file, local
> bufmgr refcount, etc.
Either one is okay, though doing the latter (ie modules you didn't touch
yet) would be probably a bit easier to merge.
regards, tom lane