Have you read http://www.postgresql.org/docs/8.2/static/tutorial.html
??
If there are specific parts in there that are unclear or missing I'm
sure the developers would be happy to know.
-Doug
---------------------------(end of broadcast)---------------------------
TIP 9: In versions below 8.0, the planner will ignore your desire to
choose an index scan if your joining column's datatypes do not
match
