po 18. 7. 2022 v 16:29 odesÃlatel Tom Lane napsal:
> Alvaro Herrera writes:
> > On 2022-Jul-18, Pavel Stehule wrote:
> >> I am trying to fix one slow query, and found that optimization of min,
> max
> >> functions is possible only when there is no JOIN in the query.
>
> > See preprocess_minmax_a
Alvaro Herrera writes:
> On 2022-Jul-18, Pavel Stehule wrote:
>> I am trying to fix one slow query, and found that optimization of min, max
>> functions is possible only when there is no JOIN in the query.
> See preprocess_minmax_aggregates() in
> src/backend/optimizer/plan/planagg.c
> Maybe it i
On 2022-Jul-18, Pavel Stehule wrote:
> Hi
>
> I am trying to fix one slow query, and found that optimization of min, max
> functions is possible only when there is no JOIN in the query.
>
> Is it true?
See preprocess_minmax_aggregates() in
src/backend/optimizer/plan/planagg.c
> select max(inse
