search for: x00082_00088_00000x

...tuples for a supplier and concatenates their product_category_id, product_material_id, etc. with delimiters. So, for a product tuple with product_category_id 82, product_material_id 88, and undefined product_technique_id, the resulting part of the ferret_product_tuple string would look like x00082_00088_00000x (where we use 00000 to indicate null). the xs are used as anchors, essentially, as a given supplier''s ferret_product_tuple string might look like ''x00082_00088_00000x x00000_00081_00013x''. Now, the ferret query that gets constructed when we do the relevant queries...