function wc_update_210_file_paths() {
	global $wpdb;

	// Upgrade file paths to support multiple file paths + names etc.
	$existing_file_paths = $wpdb->get_results( "SELECT meta_value, meta_id FROM {$wpdb->postmeta} WHERE meta_key = '_file_paths' AND meta_value != '';" );

	if ( $existing_file_paths ) {

		foreach ( $existing_file_paths as $existing_file_path ) {

			$needs_update = false;
			$new_value    = array();
			$value        = maybe_unserialize( trim( $existing_file_path->meta_value ) );

			if ( $value ) {
				foreach ( $value as $key => $file ) {
					if ( ! is_array( $file ) ) {
						$needs_update      = true;
						$new_value[ $key ] = array(
							'file' => $file,
							'name' => wc_get_filename_from_url( $file ),
						);
					} else {
						$new_value[ $key ] = $file;
					}
				}
				if ( $needs_update ) {
					$new_value = serialize( $new_value );

					$wpdb->query( $wpdb->prepare( "UPDATE {$wpdb->postmeta} SET meta_key = %s, meta_value = %s WHERE meta_id = %d", '_downloadable_files', $new_value, $existing_file_path->meta_id ) );
				}
			}
		}
	}
}