The following code does not work, but gives an idea what I want to do:
create table t (a, b);
select
group_concat(b) as list
from t
group by a
having ?1 in (list);
i.e. how to select only the groups that contain
some value in the set of values in a column not
specified in group by clause.
The only way I was able to do it is by subquery.
Something like this:
select
(select group_concat(b) from t t1 where t1.a = t2.a) as list
from t t2
where b = ?1;
--
John Found <johnfo...@asm32.info>
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