Use the FILTER syntax with SQL aggregate functions

Closes #14199

trytond/CHANGELOG

@@ -1,3 +1,4 @@
+* Use the FILTER syntax with SQL aggregate functions
 * Use the EXISTS operator when using the 'where' operator in Many2One
 * Redact sensitive values from the log (issue14220)
 * Add multiple attribute to the buttons in the tree view

trytond/trytond/backend/postgresql/database.py

@@ -205,7 +205,7 @@ class Database(DatabaseInterface):
     _has_proc = defaultdict(lambda: defaultdict(dict))
     _extensions = defaultdict(dict)
     _search_full_text_languages = defaultdict(dict)
-    flavor = Flavor(ilike=True)
+    flavor = Flavor(ilike=True, filter_=True)
 
     TYPES_MAPPING = {
         'SMALLINT': SQLType('INT2', 'INT2'),

trytond/trytond/backend/sqlite/database.py

@@ -444,7 +444,8 @@ class Database(DatabaseInterface):
     _list_cache_timestamp = {}
     flavor = Flavor(
         paramstyle='qmark', function_mapping=MAPPING, null_ordering=False,
-        max_limit=-1)
+        max_limit=-1,
+        filter_=sqlite.sqlite_version_info >= (3, 30, 0))
     IN_MAX = 200
 
     TYPES_MAPPING = {