SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 3)
    Function uniq (children 1)
     ExpressionList (children 1)
      Identifier CounterID
    Function uniqUpTo (children 2)
     ExpressionList (children 1)
      Function toInt16 (children 1)
       ExpressionList (children 1)
        Identifier CounterID
     ExpressionList (children 1)
      Literal UInt64_5
    Function count (children 1)
     ExpressionList
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier test.hits
   Function equals (children 1)
    ExpressionList (children 2)
     Function toInt16 (children 1)
      ExpressionList (children 1)
       Identifier CounterID
     Literal UInt64_1731
