SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function cityHash64 (children 1)
     ExpressionList (children 1)
      Function toString (children 1)
       ExpressionList (children 1)
        Function groupArray (children 1)
         ExpressionList (children 1)
          Function tuple (children 1)
           ExpressionList (children 1)
            Asterisk
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (alias t) (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 4)
          ExpressionList (children 3)
           Identifier brand_id
           Identifier rack_id
           Function arrayJoin (alias quantity) (children 1)
            ExpressionList (children 1)
             Function arraySlice (children 1)
              ExpressionList (children 3)
               Function arraySort (children 1)
                ExpressionList (children 1)
                 Function groupArray (children 1)
                  ExpressionList (children 1)
                   Identifier quantity
               Literal UInt64_1
               Literal UInt64_2
          TablesInSelectQuery (children 1)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             TableIdentifier stack
          ExpressionList (children 2)
           Identifier brand_id
           Identifier rack_id
          ExpressionList (children 3)
           OrderByElement (children 1)
            Identifier brand_id
           OrderByElement (children 1)
            Identifier rack_id
           OrderByElement (children 1)
            Identifier quantity