SELECT * FROM information_schema.tables; SELECT * FROM information_schema.columns;
select table_name from information_schema.tables; select cast(cast(json_agg(table_name) as varchar) as boolean) from information_schema.tables;
select column_name from information_schema.columns where table_name = 'post'; select cast(cast(json_agg(column_name) as varchar) as boolean) from information_schema.columns where table_name = 'post';
select * from subscriber; select id,email from subscriber; select id || ' - ' || email from subscriber; select cast(cast(json_agg(s.id || ' - ' || s.email) as varchar) as boolean) from subscriber as s;