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?


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