Gary Stainburn wrote:
update used_diary set ud_valet_completed=now(), ud_valet_completed_by=25 where ud_valet_completed is null and ud_valet_required < CURRENT_DATE-'7 days'::interval

is still running after approx 1 1/2 minutes. I've noticed that other updates also seem to take a long time.

Do you have any foreign keys referencing used_diary? Do they have the correct indexes on the referencing tables?
Any on-update triggers?

--
  Richard Huxton
  Archonet Ltd

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