Обсуждение: Subqueries?

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Subqueries?

От
Aleksey Dashevsky
Дата:
hi, hackers!
do you plan some improvments on subqueries?
Unfortunately, in v6.3.2 they often works very slowly, and thus
are useful only on quite small tables :-(

Thanky you
Aleksey.


Re: [HACKERS] Subqueries?

От
Vadim Mikheev
Дата:
Aleksey Dashevsky wrote:
>
> hi, hackers!
> do you plan some improvments on subqueries?
> Unfortunately, in v6.3.2 they often works very slowly, and thus
> are useful only on quite small tables :-(

Nothing...
If you use IN then try to rewrite your queries with EXISTS
if possible...

Vadim

Re: [HACKERS] Subqueries?

От
Bruce Momjian
Дата:
> hi, hackers!
> do you plan some improvments on subqueries?
> Unfortunately, in v6.3.2 they often works very slowly, and thus
> are useful only on quite small tables :-(
>

This is the first report of subquery slowness I have heard.  We have
fixed a problem where using an oid in the subquery caused a loop, but
other than that, everything seems fine.  How about sending us some
queries that are slow, and perhaps we can suggest something.


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