my $schema = __PACKAGE__->connect( $dsn, $user, $pass, {} );
my $deploy_attrs;
$deploy_attrs->{add_drop_table} = 1 if tables_exist( $dsn, $user, $pass );
$schema->deploy( $deploy_attrs );
my $schema = __PACKAGE__->connect( $dsn, $user, $pass, {} );
my $deploy_attrs;
$deploy_attrs->{add_drop_table} = 1 if tables_exist( $dsn, $user, $pass );
$schema->deploy( $deploy_attrs );