BUG #2224: unlogical syntax error

The following bug has been logged online:

Bug reference:      2224
Logged by:          Hervé Hénoch
Email address:      h.henoch@isc84.org
PostgreSQL version: 8.1.2
Operating system:   Linux FC4
Description:        unlogical syntax error
Details:

I do this request :

select id_caisse as caisse from adm_pat where nip = '20020523' ;

Under PgAdmin this request work fine but via JDBC I have the following
messages server side :

CETLOG:  statement: PREPARE <unnamed> AS SELECT id_caisse AS caisse FROM
adm_pat WHERE nip = '20020523'

CETLOG:  statement: EXECUTE <unnamed>  [PREPARE:  SELECT id_caisse AS caisse
FROM adm_pat WHERE nip = '20020523']

CETLOG:  statement: PREPARE <unnamed> AS SELECT adm_pat."nip", id_caisse
caisse FROM adm_pat  WHERE nip = '20020523'

CETERROR:  syntax error at or near "caisse" at character 33

CETLOG:  statement: PREPARE <unnamed> AS SELECT id_caisse AS caisse FROM
adm_pat WHERE nip = '20020523'

CETLOG:  statement: EXECUTE <unnamed>  [PREPARE:  SELECT id_caisse AS caisse
FROM adm_pat WHERE nip = '20020523']


The table adm_pat does not have another column named caisse. So what is the
problem (if problem).

Thanks a lot.