Re: [BUGS] BUG #1459: Connection hangs when other connection is not

2005-02-07 Thread Rainer Frey
Peter Eisentraut schrieb: Am Donnerstag, 3. Februar 2005 16:11 schrieb Rainer Frey: A select should not lock a table even when it is not committed. The SELECT obtains a read (shared) lock on the table, but the ALTER TABLE requires a write (exclusive) lock. This is certainly necessary because you

Re: [BUGS] BUG #1459: Connection hangs when other connection is not

2005-02-04 Thread Kris Jurka
On Sat, 5 Feb 2005, Oliver Jowett wrote: > - Statement.setQueryTimeout(). This is *not* implemented by the current > driver (it is a no-op), but shouldn't be too hard to implement as > mapping to statement_timeout if you feel inclined to do some driver hacking. > I think it will be complicat

Re: [BUGS] BUG #1459: Connection hangs when other connection is not

2005-02-04 Thread Oliver Jowett
Peter Eisentraut wrote: Am Freitag, 4. Februar 2005 11:54 schrieb Rainer Frey: Is there any possibility to set a timeout for the lock, after which the ALTER TABLE statement fails, instead of remaining in wait status (when calling with JDBC? Yes, there is a statement_timeout parameter or something l

Re: [BUGS] BUG #1459: Connection hangs when other connection is not committed

2005-02-04 Thread Peter Eisentraut
Am Freitag, 4. Februar 2005 11:54 schrieb Rainer Frey: > Thanks for the explanation, though I don't really get the necessity of a > commit for a read-only statement. Can't a SELECT release its lock after > it received the response? If that is the end of the transaction, then you might as well comm

Re: [BUGS] BUG #1459: Connection hangs when other connection is not committed

2005-02-04 Thread Peter Eisentraut
Am Donnerstag, 3. Februar 2005 16:11 schrieb Rainer Frey: > A select should not lock a table even when it is not committed. The SELECT obtains a read (shared) lock on the table, but the ALTER TABLE requires a write (exclusive) lock. This is certainly necessary because you don't want the structu

[BUGS] BUG #1459: Connection hangs when other connection is not committed

2005-02-03 Thread Rainer Frey
The following bug has been logged online: Bug reference: 1459 Logged by: Rainer Frey Email address: [EMAIL PROTECTED] PostgreSQL version: 8.0.1 Operating system: Redhat Linux 9, Kernel 2.4.20-8, AMD Sempron 2500+, 1GB RAM Description:Connection hangs when other connec