SELECT n.nspname as schema,
       c.relname as table,
       a.rolname as owner,
       c.relfilenode as filename,
       c.reltuples::bigint,
       pg_size_pretty(pg_relation_size(n.nspname|| '.' || c.relname)) as size,
       pg_size_pretty(pg_total_relation_size(n.nspname|| '.' || c.relname)) as total_size,
       pg_relation_size(n.nspname|| '.' || c.relname) as size_bytes,
       pg_total_relation_size(n.nspname|| '.' || c.relname) as total_size_bytes,
       CASE WHEN c.reltablespace = 0
            THEN 'pg_default'
            ELSE (SELECT t.spcname 
                    FROM pg_tablespace t WHERE (t.oid = c.reltablespace) )                    
        END as tablespace
FROM pg_class c
  JOIN pg_namespace n ON (n.oid = c.relnamespace)
  JOIN pg_authid a ON ( a.oid = c.relowner )
  WHERE n.nspname NOT LIKE 'pg_%' 
    AND relname NOT LIKE 'pg_%' 
    AND relname NOT LIKE 'information%' 
    AND relname NOT LIKE 'sql_%' 
    AND relkind IN ('r')
ORDER BY total_size_bytes DESC, 1, 2;
--LIMIT 10;