BW Extractor based on Database Procedure ( HANA)

Hi

I am trying to build a BW extractor based on a database procedure I have in HANA database.

What I did so far is ..

1. Created a Proxy Procedure with Input Parameter

2. Created a Function Module in ABAP

3. Called Proxy Procedure from ABAP .  I used a loop to pass the input parameter , so that I do not get a memory bottleneck while calling the procedure.

This FM loads data properly via InfoPackage but InfoPackage monitor remains yellow.  Challenge is setting NO_MORE_DATA flag .  As I am not using Cursor here, how can I flag end of data loads ?  Any suggestions ?

Sample Code :

Loop at itab1 into wa .

Call database procedure   xyz

exporting  

customer = wa-customer

importing

var_out   = itab2

if itab2[] not initial .

Loop and append to e_t_data .

endif .

Endloop.

Cheers

Anindya