Hi, update valley set test='this is a test' Such query updates ALL of your records in the table. 5 million records * 47 fields - that can be several gigabytes of data. The system has to scan that gigabytes to change every record. This is a huge task. Try vacuuming and see if it helps. It can help a lot, if you perform such 'whole table updates' often. Best regards, Piotr Kolaczkowski ---------------------------(end of broadcast)--------------------------- TIP 6: explain analyze is your friend
