What joins are available in Informix 9.2? I'm testing some queries with an old version of Informix (9.2.1) and can't seem to execute even the most basic queries containing RIGHT OUTER JOIN or FULL OUTER JOIN. Tried several variations (RIGHT JOIN, OUTER JOIN or just OUTER), but without any success. INNER JOIN and LEFT JOIN work fine.

Does anyone know the correct syntax for outer/right joins in older versions of Informix, or are these joins just not possible?
Ok, at least an outer join works just with different syntax: just using OUTER with a comma after the first table and a WHERE instead of an ON.

Edited to add an example from http://publib.boulder.ibm.com/infocenter/idshelp/v10/index.jsp?topic=/com.ibm.sqls.doc/sqls679.htm

SELECT c.customer_num, c.lname, o.order_num FROM customer c, 
   OUTER orders o WHERE c.customer_num = o.customer_num