Product Quantities By Warehouse does not work with SQLite
From https://codereview.tryton.org/253511002/#msg3
The date field from the table_query is not converted into date instance by SQLite (probably because of the COALESCE).
From https://codereview.tryton.org/253511002/#msg3
The date field from the table_query is not converted into date instance by SQLite (probably because of the COALESCE).