> First, this list is not right place to ask about 6.3 features :)
> 2nd, subselects within UPDATE are supported.
They are? I thought he wanted to do:
update test set x = (select y from taby)
I didn't think we supported that. Can you confirm that?
> 3rd, there will be separate select (better say - separate re-scan of
> subquery' plan) for each parent row (I assume that you talk about
> correlated subqueries) but this will be more efficient than using
> SQL-funcs which do _initialization_, scannig, _closing_ of query' plan
> for each parent row. When using subqueries performance will be
> near the same as for performing Nestloop join.
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