Am 13.11.2018 um 17:42 schrieb Олег Самойлов:
insert into gender (gender) select case when random<0.50 then 'female' when random<0.99 then 'male' else 'other' end from (select random() as random, generate_series(1,:table_size)) as subselect;
is that really your intended data distibution? 99% male? Regards, Andreas -- 2ndQuadrant - The PostgreSQL Support Company. www.2ndQuadrant.com
