Hi all, I checked out today the MonetDB/XQuery code and Mserver is crashing whenever I try to execute MIL statements using the mclient command. More details follow. I first compile an XQuery to MIL statements using the command "pf -A" Then I execute the MIL statements with "mclient -t -l" Whenever I do so, I get the correct results but Mserver aborts after giving the following error message: Mserver: monet_tbl.mx:1743: TBL_M_decref: Assertion `p' failed. Aborted I have attached the XQuery file and the generated MIL file. Thank you and best regards, Riham -- Address: Database Group, Dept of EEMCS, University of Twente, POBox 217, 7500 AE Enschede, The Netherlands Phone: +31 (0)53 489 4628 Fax: +31 (0)53 489 2927 Email: r.abdelkader@ewi.utwente.nl