Thread: transactions
Is there any known issues regarding transactions.
I got something like:
begin transaction
select function1()
select into v1 function2()
if v1='ok' then commit else rollback end if
To notice that both functions have about 100 lines of code.
And both functions uses the same tables but in different modes.
function1 deletes && function2 inserts
The problem is that my web browser hangs on this query and stays that way a lot [like 30 minutes -- i forgot about it and after 30 minutes it was still trying to open the result page]
I hope tomorrow I'll resolv this and if is primary my fault I just shut up and say nothing.
regards,
vioss
Viorel, > The problem is that my web browser hangs on this query and stays that way a > lot [like 30 minutes -- i forgot about it and after 30 minutes it was still > trying to open the result page] I think this is a problem inside one of the functions; either you have an endless loop, or you are doing a huge unindexed join operation or something similar. Enclosing the two functions inside a transaction by itself shouldn't cause a time-out. One thing that can mess things up vis-a-vis transactions: If you have a function which does a series of large cascading updates -- that is, the function uses the updated table from step #2 to perform step #3, and step #3 to do step #4, and each update is 1000's of rows -- then execution can really bog down due to the lack of VACUUMing between updates. However, you can't VACUUM without committing the transaction. Just in case, I'd suggest doing a VACUUM ANALYZE right before running your big transaction. -- Josh Berkus Aglio Database Solutions San Francisco