SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 6)
   ExpressionList (children 2)
    Identifier CounterID
    Function count (alias c) (children 1)
     ExpressionList
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier test.hits
   ExpressionList (children 1)
    Identifier CounterID
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier c
   Literal UInt64_10
   Set