On Tue, Aug 12, 2008 at 4:17 AM, Sabin Coanda <sabin.coanda@xxxxxxxxxxxxx> wrote: >> long running transactions can be evil. is there a reason why this has >> to run in a single transaction? > > This single transaction is used to import new information in a database. I > need it because the database cannot be disconected from the users, and the > whole new data has to be consistently. There are different constraints that > are checked during the import. have you considered importing to a temporary 'holding' table with copy, then doing 'big' sql statements on it to check constraints, etc? merlin