On Sun, 2010-11-28 at 12:46 +0100, Mario Splivalo wrote: > The database for monitoring certain drone statuses is quite simple: > > This is the slow part: > INSERT INTO drones_history (sample_id, drone_id, drone_log_notice, > drone_temperature, drone_pressure) > SELECT * FROM tmpUpdate; > > For 100 rows this takes around 2 seconds. For 1000 rows this takes > around 40 seconds. For 5000 rows this takes around 5 minutes. > For 50k rows this takes around 30 minutes! Now this is where I start lag > because I get new CSV every 10 minutes or so. Have you considered making the foreign key check deferrable? JD -- PostgreSQL.org Major Contributor Command Prompt, Inc: http://www.commandprompt.com/ - 509.416.6579 Consulting, Training, Support, Custom Development, Engineering http://twitter.com/cmdpromptinc | http://identi.ca/commandprompt -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
