Log Message:
-----------
Unfortunatly the original porters just decided to make the errnum
function always return one (since php doesnt provide pg err nums), 
which causes problems because some places check this value to 
determine if an error has occured. Instead make this return conditional
on an actual error having been tossed.

Modified Files:
--------------
    wikipgedia/includes:
        DatabasePostgreSQL.php (r1.2 -> r1.3)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/wikipedia/wikipgedia/includes/DatabasePostgreSQL.php.diff?r1=1.2&r2=1.3)

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