Help with "DBD::Pg::db do warning"?

[McMahon, Chris]

Hi... 
        I have some code that looks like this: 

*****************************************************
my $sql1 = qq{INSERT INTO timefile VALUES (
                current_timestamp, 
                '$var' 
                )
        };

$dbh->do ($sql1);
***************************************************

        I call this inside a loop (for multiple values of $var), and
each time through the loop I get a message "DBD::Pg::db do warning: at
script line 48".  Nothing is written to the "timefile" table.   
        I've also tried "my $rv = $dbh->do($sql1)" with the same result.

        This is PostgreSQL on SuSE 9.1.  
        Any suggestions to get these records into the table would be
welcome. 
-Chris