SelectWithUnionQuery (children 2)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Asterisk
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function generateRandom (children 1)
       ExpressionList (children 4)
        Literal \'x UInt64\'
        Literal NULL
        Literal UInt64_10
        Literal UInt64_2
   Literal UInt64_2
 Identifier Null