Case with Char(1) - Mailing list pgsql-sql

Hi list,

it is possible to use case with character (1) ?

I am having problems to formate the SQL statement.

I have:

SELECT * FROM test;
a
---ABC


SELECT a,      CASE WHEN a='A' THEN 'one'           WHEN a='B' THEN 'two'           ELSE 'other'      END   FROM test;
a | case
---+-------A | oneB | twoC | other

I know from all program languages that case do not apply to noun
sequencialiable (if this word exists) variable (like integers etc).

Any help would be greatfull.

Thanks in advance
Ezequias