SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function dictGetKeys (children 1)
     ExpressionList (children 4)
      Literal \'dict_neg\'
      Literal \'u64\'
      Function toUInt64 (children 1)
       ExpressionList (children 1)
        Literal UInt64_7
      Literal UInt64_1
