Have you looked at gdk/gdk.h? From: developers-list [mailto:developers-list-bounces+david.b.anderson=citi.com@monetdb.org] On Behalf Of Senthil Vidhiyakar Sent: Friday, March 31, 2017 1:38 AM To: Communication channel for developers of the MonetDB suite. Subject: BBP.dir file in MonetDB Can someone tell me the need and file structure of BBP.dir file and the kind of information it contains.? Thank you, Senthil Vidhiyakar. S