SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 3)
    Subquery (alias arr) (children 1)
     SelectWithUnionQuery (children 1)
      ExpressionList (children 1)
       SelectQuery (children 2)
        ExpressionList (children 1)
         Function arrayCumSum (children 1)
          ExpressionList (children 1)
           Function groupArray (children 1)
            ExpressionList (children 1)
             Identifier amount
        TablesInSelectQuery (children 1)
         TablesInSelectQueryElement (children 1)
          TableExpression (children 1)
           Subquery (children 1)
            SelectWithUnionQuery (children 1)
             ExpressionList (children 1)
              SelectQuery (children 3)
               ExpressionList (children 1)
                Identifier amount
               TablesInSelectQuery (children 1)
                TablesInSelectQueryElement (children 1)
                 TableExpression (children 1)
                  TableIdentifier bm
               ExpressionList (children 1)
                OrderByElement (children 1)
                 Identifier business_dttm
    Function plus (alias id) (children 1)
     ExpressionList (children 2)
      Literal UInt64_1
      Function rowNumberInAllBlocks (children 1)
       ExpressionList
    Literal UInt64_3 (alias window_size)
   ExpressionList (children 3)
    Identifier amount
    Identifier business_dttm
    Function if (alias moving_sum) (children 1)
     ExpressionList (children 3)
      Function less (children 1)
       ExpressionList (children 2)
        Identifier id
        Identifier window_size
      Literal NULL
      Function round (children 1)
       ExpressionList (children 2)
        Function minus (children 1)
         ExpressionList (children 2)
          Function arrayElement (children 1)
           ExpressionList (children 2)
            Identifier arr
            Identifier id
          Function arrayElement (children 1)
           ExpressionList (children 2)
            Identifier arr
            Function minus (children 1)
             ExpressionList (children 2)
              Identifier id
              Identifier window_size
        Literal UInt64_4
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 3)
          ExpressionList (children 2)
           Identifier amount
           Identifier business_dttm
          TablesInSelectQuery (children 1)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             TableIdentifier bm
          ExpressionList (children 1)
           OrderByElement (children 1)
            Identifier business_dttm
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier business_dttm