SelectWithUnionQuery (children 2)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 2)
    Function cityHash64 (alias n) (children 1)
     ExpressionList (children 1)
      Function modulo (children 1)
       ExpressionList (children 2)
        Function rand (children 1)
         ExpressionList
        Literal UInt64_1000
    Function groupBitmapState (children 1)
     ExpressionList (children 1)
      Identifier number
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function numbers_mt (children 1)
       ExpressionList (children 1)
        Literal UInt64_200000000
   ExpressionList (children 1)
    Identifier n
 Identifier Null
