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create table table_name (name varchar(10), gender varchar(10)); insert into table_name values ('AA', 'Male'), ('BB', 'Male'), ('CC', 'Male'), ('DD', 'Female'), ('EE', 'Female');
CREATE TABLE
INSERT 0 5
select unnest(mcnt) as gender_1, unnest(fcnt) as gender_2 from ( select array['Male', count(*) filter (where gender = 'Male')::text] as mcnt, array['Female', count(*) filter (where gender = 'Female')::text] as fcnt from table_name ) t
gender_1
gender_2
Male
Female
3
2
SELECT 2