SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Literal \'test_dictionary\' (alias dictionary)
   ExpressionList (children 1)
    Function dictGet (children 1)
     ExpressionList (children 3)
      Identifier dictionary
      Literal \'value\'
      Function toUInt64 (children 1)
       ExpressionList (children 1)
        Literal UInt64_0
