2012/2/28 Tom Lane :
> Pavel Stehule writes:
>> Why there are a SubPlan 2?
>
> http://git.postgresql.org/gitweb/?p=postgresql.git&a=commitdiff&h=bd3daddaf232d95b0c9ba6f99b0170a0147dd8af
>
> regards, tom lane
Thank you - I can verify so it works well, but a EXPLAIN result is
Pavel Stehule writes:
> Why there are a SubPlan 2?
http://git.postgresql.org/gitweb/?p=postgresql.git&a=commitdiff&h=bd3daddaf232d95b0c9ba6f99b0170a0147dd8af
regards, tom lane
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To make changes to your
Hello
I try to look on one slow query with correlated subquery:
create table xx(a int primary key);
create table yy(a int);
insert into xx select generate_series(1,100);
insert into yy select (random()*100)::int from generate_series(1,10);
create index on yy(a);
Query A
select a, (
