The usage of ``grouped_slice`` without size is deprecated since `= ANY(ARRAY[%s])` is used for PostgreSQL and SQLite is used only for tests. The ``Database.IN_MAX`` is replaced by ``backend.MAX_QUERY_PARAMS`` which is a more accurate limit of the backend. The SQLite limits is indeed SQLITE_MAX_EXPR_DEPTH so we use a empirical value.
############### Purchase Module ############### The *Purchase Module* provides everything that is required to create and manage purchases made by the company. It adds the idea of a purchase to Tryton, and allows it to be tracked as it moves through various states from draft to done. It makes it easy to create supplier shipments for the purchase, and includes the ability to automatically create related supplier invoices. .. toctree:: :maxdepth: 2 usage/index design releases