On 05/23/2010 03:15 PM, Grzegorz Jaśkiewicz wrote:
> every single query in postrgresql runs as a transaction, on top of it,
> some are atomic, like when you use RETURNING statement. This is
> because postgresql doesn't actually have to select these rows as
> separate query.
Please note the cooperation of the UPDATE and the inner sub-SELECT
query, which was my point.
