On Fri, Jun 9, 2017 at 9:12 AM, Frits Jalvingh <jal@xxxxxx> wrote: > Hi John, > > Yes, I was aware and amazed by that ;) It is actually the fetch size in > combination with autocommit being on; that dies the sweet OOM death as soon > as the table gets big. > > But Postgres read performance, with autocommit off and fetch size arond 64K, > is quite OK. But it's good to get this mentioned a lot, because as you said > you can spend quite some time wondering about this! No production db server should have the oom killer enabled. -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance