David Griffiths wrote:
>>I think you want something like:
>>UPDATE user_account SET last_name = 'abc'
>> WHERE EXISTS (SELECT 1 FROM commercial_entity ce, commercial_service cs
>> WHERE user_account.user_account_id = ce.user_account_id AND
>> ce.commercial_entity_id = cs.commercial_entity_id);
>
> Unfort, this is still taking a long time.
> -------
> Seq Scan on user_account (cost=0.00..748990.51 rows=36242 width=716)
Do you have an index on user_account.user_account_id?
Joe
