*/
	protected function prepare_query() {

		global $wpdb;

		$vars = array();

		$vars[] = $this->get_skip();
		$vars[] = $this->get( 'per_page' );

		// phpcs:disable WordPress.DB.PreparedSQL.InterpolatedNotPrepared
		$sql = $wpdb->prepare(
			"SELECT SQL_CALC_FOUND_ROWS meta_id
			 FROM {$wpdb->prefix}lifterlms_user_postmeta
			 {$this->sql_where()}
			 {$this->sql_orderby()}
			 LIMIT %d, %d;",
			$vars
		);
		// phpcs:enable WordPress.DB.PreparedSQL.InterpolatedNotPrepared

		return $sql;