Hi! All, I have come cross many posting that talks about INLINE FUNCTION and their utility in helping optimizer decide the right plan. However, other than few posting in different forums I haven't been able to get my hands on any sort of documentation that explains which function can be converted to an INLINE function. I understand it has to be a simple function and inline_function in backend\optimizer\util\clauses.c gave me some more pointers but I was wondering if there is more comprehensive documentation available anywhere. Thanks, Brijesh