SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 6)
   ExpressionList (children 2)
    Identifier Num
    Function count (children 1)
     ExpressionList (children 1)
      Asterisk
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier limit_by
   ExpressionList (children 1)
    Identifier Num
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier Num
   Literal UInt64_2
   ExpressionList (children 1)
    Identifier Num