Hi, I have posted an image of the user inputs here:
http://i.imgur.com/MUkuZ.png The problem is that I am given a range of days (Dec 22 - Mar 22) over a range of years (1900 - 2009) and the range of days can span from one year to the next. This is not the same as saying Dec 22, 1900 to Mar 22, 2009, for which I do not need date math. What you really need to do is not do date arithmetic using text-string > operations. The planner has no intelligence about that whatsoever. > Convert the operations to something natural using real date or timestamp > types, and then look at what indexes you need. > Any suggestions on how to go about this? Thanks again! Dave