SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 4)
    Function count (children 1)
     ExpressionList
    Function sum (children 1)
     ExpressionList (children 1)
      Function toInt64 (children 1)
       ExpressionList (children 1)
        Identifier n
    Function max (children 1)
     ExpressionList (children 1)
      Function toUInt32 (children 1)
       ExpressionList (children 1)
        Identifier n
    Function min (children 1)
     ExpressionList (children 1)
      Function toInt128 (children 1)
       ExpressionList (children 1)
        Identifier n
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier dist
