Recursive Hierarchy in Webi/IDT report

Hello all,

We are on BO4.1 SP5 .

Got a requirement to achieve recursive hierarchy and here's the situation.

We have a table that consist of three columns (Column1, Column2 & Column3) , in the report filter Coumn3 will be the user input which is called a root node then it brings Column1 values as child of root node, Column1 will further have sub-child , to bring the sub child we need to pass the Column1 child into Column3  as root and this loop should continue until there are no more child available.

Please see sample values for my requirement

Column3     Column2    Column1

------------------------------------------------

101               ABC          102

101               ABC          103

101               ABC          104

102               DEF          105

102               DEF          106                       

103               PQR          ---

104               XYZ          ----

This loop go on until all child for root populates. As there are no fixed number of nodes, How can we achieve this ?

Any insight on this will be greatly appreciated.

Thanks

GauravB