@Test
public void test_null_gte_missing() {

  FunctionExpression gte = dsl.gte(DSL.ref(INT_TYPE_NULL_VALUE_FIELD, INTEGER),
      DSL.ref(INT_TYPE_MISSING_VALUE_FIELD, INTEGER));
  assertEquals(BOOLEAN, gte.type());
  assertEquals(LITERAL_MISSING, gte.valueOf(valueEnv()));
  gte = dsl.gte(DSL.ref(INT_TYPE_MISSING_VALUE_FIELD, INTEGER),
      DSL.ref(INT_TYPE_NULL_VALUE_FIELD, INTEGER));
  assertEquals(BOOLEAN, gte.type());
  assertEquals(LITERAL_MISSING, gte.valueOf(valueEnv()));
}