Загрузка данных


select
    pppp.pens_product_id,
    count(*) as cnt,
    string_agg(pppp.param_pl_id::text, ', ' order by pppp.param_pl_id) as param_ids
from prod_line.pens_product_param_pl pppp
where pppp.param_pl_id in (338, 385)
group by pppp.pens_product_id
having count(*) > 1
order by pppp.pens_product_id;