On Apr 17, 2008, at 11:27 AM, Carl Karsten wrote:

> I am pretty sure the lock will block even SELECT queries.  which  
> would be really
> bad.


        First off, transactions are not locks. Transactions are used all the  
time without applications grinding to a halt.

        Second, many DBs use implicit transactions; if you look at the code  
for dbPostgreSQL.py, beginTransaction() does nothing but log the call.

-- Ed Leafe





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