staylor / WordPress

		}

		// Post author IDs for an IN clause.

		if ( ! empty( $this->query_vars['post_author__in'] ) ) {

			$join_posts_table = true;

			$this->sql_clauses['where']['post_author__in'] = 'post_author IN ( ' . implode( ',', wp_parse_id_list( $this->query_vars['post_author__in'] ) ) . ' )';

		}

		// Post author IDs for a NOT IN clause.

		if ( ! empty( $this->query_vars['post_author__not_in'] ) ) {

		}

		// Post author IDs for a NOT IN clause.

		if ( ! empty( $this->query_vars['post_author__not_in'] ) ) {

			$join_posts_table = true;

			$this->sql_clauses['where']['post_author__not_in'] = 'post_author NOT IN ( ' . implode( ',', wp_parse_id_list( $this->query_vars['post_author__not_in'] ) ) . ' )';

		}

		$join = '';