CREATE OR REPLACE FUNCTION exec(text) returns text language plpgsql volatile
  AS $f$
    BEGIN
      EXECUTE $1;
      RETURN $1;
    END;
$f$;
\o /dev/null
SELECT exec('drop table if exists largedata_'||g.i||'; create unlogged table largedata_'||g.i||'(data bytea, id serial primary key);') FROM generate_series(0, 64) g(i);
\o