Products page error Newbie needs help

[jimbo123]

hello

 

when i try and view product details i get the following error

 

1104 - The SELECT would examine more than MAX_JOIN_SIZE rows; check your WHERE and use SET SQL_BIG_SELECTS=1 or SET SQL_MAX_JOIN_SIZE=# if the SELECT is okay

 

select p.products_id, p.products_image from orders_products opa, orders_products opb, orders o, products p where opa.products_id = '946' and opa.orders_id = opb.orders_id and opb.products_id != '946' and opb.products_id = p.products_id and opb.orders_id = o.orders_id and p.products_status = '1' group by p.products_id order by o.date_purchased desc limit 6

 

Can anyone help me fix this error?

 

jamie