Log Message:
-----------
Using clause has to accept signed numeric constants too.
Modified Files:
--------------
pgsql/src/interfaces/ecpg/preproc:
ecpg.trailer (r1.2 -> r1.3)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/preproc/ecpg.trailer?r1=1.2&r2=1.3)