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
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