Щось корисне про IT

SELECT a.attname, format_type(a.atttypid, a.atttypmod), a.attnotnull, a.atthasdef, a.attnum 
  FROM pg_class c, pg_attribute a 
  WHERE c.relname ='имя таблицы' AND a.attnum > 0 AND a.attrelid = c.oid ORDER BY a.attnum;

SELECT a.attname, format_type(a.atttypid, a.atttypmod), a.attnotnull, a.atthasdef, a.attnum FROM pg_class c, pg_attribute a WHERE c.relname ='имя таблицы' AND a.attnum > 0 AND a.attrelid = c.oid ORDER BY a.attnum;