Support window functions with SQLite backend

issue7703
review364231002

CHANGELOG

@@ -1,3 +1,4 @@
+* Support window functions with SQLite backend
 * Use JSONB to store Dict field on PostgreSQL backend
 
 Version 6.2.0 - 2021-11-01

trytond/backend/sqlite/database.py

@@ -585,6 +585,9 @@ class Database(DatabaseInterface):
     def has_multirow_insert(self):
         return True
 
+    def has_window_functions(self):
+        return sqlite.sqlite_version_info >= (3, 25, 0)
+
     def sql_type(self, type_):
         if type_ in self.TYPES_MAPPING:
             return self.TYPES_MAPPING[type_]