use Mojo::Pg;
use Mojo::Pg::Migrations;

my $dsn  = 'postgresql://postgres:fengguang@localhost/postgres';
my $file = 'E:\QMDownload\Mojo-Pg-2.08\examples\blog\migrations\blog.sql';

my $migrations = Mojo::Pg::Migrations->new( pg => Mojo::Pg->new( $dsn ) );
   $migrations = $migrations->from_file( $file )->migrate;