Update FAQ.

doc/FAQ

@@ -948,7 +948,8 @@ SELECT *
    
     4.24) How do I do an outer join?
     
-   PostgreSQL 7.1 and later supports outer joins. Here are two examples:
+   PostgreSQL 7.1 and later supports outer joins using the SQL standard
+   syntax. Here are two examples:
     SELECT *
     FROM t1 LEFT OUTER JOIN t2 ON (t1.col = t2.col);
 
@@ -956,11 +957,12 @@ SELECT *
     SELECT *
     FROM t1 LEFT OUTER JOIN t2 USING (col);
 
-   These identical queries join t1.col to t2.col, and return any unjoined
-   rows in t1. A RIGHT join would return unjoined rows of table t2. A
-   FULL join would return unjoined rows from t1 and t2. The word OUTER is
-   optional and is assumed in LEFT, RIGHT, and FULL joins. Ordinary joins
-   are called INNER joins.
+   These identical queries join t1.col to t2.col, and also return any
+   unjoined rows in t1 (those with no match in t2). A RIGHT join would
+   add unjoined rows of t2. A FULL join would return the matched rows
+   plus all unjoined rows from t1 and t2. The word OUTER is optional and
+   is assumed in LEFT, RIGHT, and FULL joins. Ordinary joins are called
+   INNER joins.
    
    In previous releases, outer joins can be simulated using UNION and NOT
    IN. For example, when joining tab1 and tab2, the following query does