Hi, I've been trying a similar thing, with setIntegrityCheck(false).
I have two tables, Prizes and Products (Prizes being a type of product, and they share the same primary key), which need to be joined together. I've been trying something like this:
$select->setIntegrityCheck(false)->joinNatural('Products')......
where $select is a zend_db_table_select from the zend_db_table for prizes
and I get a result that looks like this: SELECT `Products`.* FROM `Products`
when I echo out the select. Why is this happening?