pgsql embedded again!

hi.
I still have the data type problem.
I am working with the postgresql system catalog and I wanna get all
relname of pg_class relation on a C variable.

-----> \d pg_class

Attribute | Type | Modifier
--------------+-----------+----------
relname | name |
reltype | oid |
relowner | integer |
relam | oid |
.........
......
.....
...
..

C program.

EXEC SQL BEGIN DECLARE SECTION;
VARCHAR tabla[50]; I also tried with char tabla[50];
......
....
.
EXEC SQL END DECLARE SECTION;


I used a cursor for results.....
EXEC SQL DECLARE T99 CURSOR FOR select relname from pg_class

now I want to get the results of query... then:

EXEC SQL OPEN T99;
EXEC SQL FETCH IN T99 INTO :tabla; here is the problem, I can't
to get on tabla variable results.
I think that may be the data type ..... I don't know ....


do you know about psql embedded mail list?