SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 2)
    Function sum (alias eventcnt) (children 1)
     ExpressionList (children 1)
      Identifier eventcnt
    Identifier type
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier tp
   ExpressionList (children 1)
    Identifier type
   ExpressionList (children 2)
    OrderByElement (children 1)
     Identifier eventcnt
    OrderByElement (children 1)
     Identifier type
