OData doesn't support mulitiple usage of arithmetic operators

Cannot use more than one arithmetic operator in single OData query. Each arithmetic operator has same problem: add,sub,mul,div and mod.

URL: http://localhost:8080/odata4/olingo_basic/Source/SimpleTableView/?$filter=intkey%20eq%205%20add%201%20add%201
Actual result: {"error":{"code": null,"message": "TEIID30067 Type was null for (? + ?) in function ((? + ?) + ?)"}}
Expected result: Entity with intkey 7

See: [OData-ABNF] Line: 384 and 561