straight insert doing batches of 100. dropping the index to see if that helps. -----Original Message----- From: Ravi Krishna <srkrishna@xxxxxxxxxxx> Sent: Tuesday, November 20, 2018 11:52 AM To: David Modica <davidmo@xxxxxxxxxxxxxxxxxxx> Cc: pgsql-admin@xxxxxxxxxxxxxx Subject: Re: inserts take longer and longer > > we have a developer who is doing > batch inserts 20 at a time and each subsequent batch is taking longer > to the point where it is a critical problem. I recently changed the > out of the box config to see if that would help but it hasn’t: > I recollect reading something few years ago, but not able to place my finger on the issue. IIRC it was something to do with the inserting session creating a HOT bloat because vaccum could not do anything on that live session. I will try to search for that post. But the symptoms were similar to yours. Initially good performance and then getting slower and slower. Q: Is it straight insert or you do select or updates also along with insert.
