Gabor Siklos <siklosg@xxxxxxxxx> writes: > I'm trying to update a table in transaction mode with > 300 million records in it, and I'm getting an out of > memory error. The update per se shouldn't be a problem, but if you have AFTER ROW triggers on the table then the list of pending trigger events could be a problem. Foreign key constraints, in particular, use AFTER triggers. > In transaction mode, I first delete all the records in > the table and then try to use COPY to populate it > again with the new data from a file. The out of memory > error happens during the COPY. If the problem is coming from an FK constraint, you might consider dropping the constraint and then re-adding it after the COPY. This'd probably be faster than checking the rows "retail", too. regards, tom lane
