WPINC_class wp meta query.php Notes - WordPress-Thinstall/wordpress-develop GitHub Wiki

interface MetaQueryInterface {
    public function sanitize_query( $queries );
    public function parse_query_vars( $qv );
    public function get_cast_for_type( $type = '' );
    public function get_sql( $type, $primary_table, $primary_id_column, $context = null );
    public function get_sql_for_clause( &$clause, $parent_query, $clause_key = '' );
    public function get_clauses();
    public function has_or_relation();
}