Hi,
hmm, this should work in 7.9 as well. Please trace that sequence with a MaxDB kernel trace (vtrace) enabled - you can use this link for upload:
https://share.sap.com/a:gns0cg/MyAttachments/R.c63f8d22-fde0-4743-a2e1-79d512474878/
If you want, you can also add an ODBC trace, but this would be optional at the moment :-)
Thorsten