Обсуждение: Dropping users with no name

I have accidentally created a user with no name. How can I delete this
user?
I have compiled my attempts below:
   Hans


persons=# SELECT * FROM pg_user;usename  | usesysid | usecreatedb | usetrace | usesuper | usecatupd |
passwd  |
valuntil
----------+----------+-------------+----------+----------+-----------+----------+----------
postgres |       26 | t           | t        | t        | t         |
******** |         |       27 | f           | f        | f        | f         |
******** |
(2 rows)

persons=# DELETE FROM pg_user where usesysid>26;
DELETE 0

persons=# SELECT '$'|| usename||'$' FROM pg_user; ?column?
------------$postgres$$$
(2 rows)

persons=# DROP USER '';
ERROR:  parser: parse error at or near "'"

Hans-Jürgen Schönig wrote: >I have accidentally created a user with no name. How can I delete this >user? >I have
compiledmy attempts below: > >    Hans > > >persons=# SELECT * FROM pg_user; > usename  | usesysid | usecreatedb |
usetrace| usesuper | usecatupd | >passwd  | >valuntil
>----------+----------+-------------+----------+----------+-----------+------    >----+---------- > > postgres |
26| t           | t        | t        | t         | >******** | >          |       27 | f           | f        | f
 | f         | >******** | >(2 rows) > >persons=# DELETE FROM pg_user where usesysid>26; >DELETE 0
 
pg_user is a view.  Try
 DELETE FROM pg_shadow where usename = '';


-- 
Oliver Elphick                                Oliver.Elphick@lfix.co.uk
Isle of Wight                              http://www.lfix.co.uk/oliver
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GPG: 1024D/3E1D0C1C: CA12 09E0 E8D5 8870 5839  932A 614D 4C34 3E1D 0C1C
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