Hi, On Monday 01 November 2010 13:49:14 Divakar Singh wrote: > When I tried inserting 1M rows into a table with a Primary Key, it took > almost 62 seconds. > After adding a composite index of 2 columns, the performance degrades to > 125 seconds. > I am using COPY to insert all data in 1 transaction. Without seeing your config its hard to suggest anything here. Did you do basic tuning of your pg installation? wal_buffers, shared_buffers, checkpoint_segments, maintenance_work_mem are likely most relevant for that specific case. Andres -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
