Re: table level locking different in 7.0?

> > Jim Mercer <jim(at)reptiles(dot)org> writes:
> >> i had several concurrent processes which would do inserts via COPY and
> >> queries.
> >> on that system, i don't recall the COPY processes as being blocked by the
> >> query processes.
> >> now i'm running that app on solaris 7 with pgsql 7.0.
> >> i'm finding that a big long select is blocking other processes which
> >> are doing COPY's.
>
> > Hmm. In 7.0, COPY IN acquires an exclusive lock on the target table,
> > which is something I put in in a fit of paranoia. It may not really
> > be necessary --- probably a regular write lock would be good enough.
>
> OK, fix committed. Jim, if you're in a hurry for this fix, just change
> AccessExclusiveLock to RowExclusiveLock at line 289 of
> backend/commands/copy.c.

FYI, I have been telling people to grab tomorrow's snapshot from
ftp:/pub/dev if they need changes that have been applied. At this
point, we don't have any funny stuff in the cvs tree.

--
Bruce Momjian | http://www.op.net/~candle
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