Log Message:
-----------
If no result is given NOTFOUND should be returned. Check for empty result
string too.
Modified Files:
--------------
pgsql/src/interfaces/ecpg/ecpglib:
data.c (r1.45 -> r1.46)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/ecpglib/data.c?r1=1.45&r2=1.46)