Comment 4 for bug 1046720

Had a discussion with al-maisan and monelli about the size of the data sets we'll have to work with. Here's what we discussed:

For a realistic event-based calculation, we can expect
  * A few 100,000s of points
  * For each point, a few 100,000s to a few 1,000,000s of GMVs

Thus, fetching this massive amount of data from the DB, number crunching in Python land, and writing back to the DB perhaps is not the ideal solution.

al-maisan and I discussed this and I'll experiment a bit with doing this number crunching in the database (as a plpython function, for example).