Kovacs Zoltan Sandor <tip(at)pc10(dot)radnoti-szeged(dot)sulinet(dot)hu> writes:
> test=# ALTER GROUP anygroup ADD USER 1234;
> where 1234 can be any number, will result this error message:
> ERROR: parser: parse error at or near "1234"
Double quotes around the username, perhaps?
regards, tom lane