[求助]DBD::Pg用bind_param说INSERT has more target columns than expr.

用4个问号可以,但为啥用一个问号无法实现?


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CODE:
my $sth = $dbh->prepare( "INSERT INTO epdview (ac, firstchar, maxleft, maxright) VALUES ( ?,?,?,? )" );
$suc =$sth->execute(‘AC’, 12, -2, 1);