Birthday query in Google App Engine

Question

I want to have a list of contact that celebrates their birthday disregarding the year, but I can't seem to disregard the year when I do gql.

The closest that I get is the code

SELECT * FROM Contact WHERE birthdate = DATE(2013, 4, 5) and this code is very wrong.

I need something like a wildcard to put in DATE(*, 4, 5).

Answer 1

I'm not sure that there's an efficient way to query a datetime.datetime object on month/day using only GQL,

If this is a critical feature of the app which will be used frequently my advice would be to store birth year and birth month/day seperately in the datastore. You can then query the month/day directly.