Get meta_id along with meta_key and meta_value

Is it somehow possible to get_post_meta or get_post_custom and have meta_id returned along with the meta_value? For example:

$data = get_post_meta( $post_id, 'my_key' );
// returns this:
array( 0 => array('myvalue1', 1002 ), 1 => array( 'myvalue2', 1003 ));

The basic idea is that because there may be multiple meta_values for the same meta_key, I would have to know the meta_id in order to reliably update/delete the post meta.

This function worked for me:

function get_complete_meta( $post_id, $meta_key ) {
  global $wpdb;
  $mid = $wpdb->get_results( $wpdb->prepare("SELECT * FROM $wpdb->postmeta WHERE post_id = %d AND meta_key = %s", $post_id, $meta_key) );
  if( $mid != '' )
    return $mid;

  return false;
}

it will return an array of objects like:

Array
(
    [0] => stdClass Object
        (
            [meta_id] => 1002
            [post_id] => 1
            [meta_key] => my_key
            [meta_value] => my_value
        )
    [1] => stdClass Object
        (
            [meta_id] => 1003
            [post_id] => 668
            [meta_key] => my_key
            [meta_value] => another value
        )
)