Django filter() lookup type documentation
I looked on Django's documentation and Googled every varation of the phrase but I cannot find any documentation that exactly describes the behaviour of lookuptypes.

    app.objects.filter(column__lookuptype=criteria)

I have found documentation on which lookuptypes I *can* use but not what they do or how to use them.  For example, I have no bloody clue what `__gte` does, but I cannot find good documentation on what it does either.

Is there documentation that I overlooked?

Any pointers in the right direction would be greatly appreciated. Thanks!
Django filter() lookup type documentation
===

I looked on Django's documentation and Googled every varation of the phrase but I cannot find any documentation that exactly describes the behaviour of lookuptypes.

    app.objects.filter(column__lookuptype=criteria)

I have found documentation on which lookuptypes I *can* use but not what they do or how to use them.  For example, I have no bloody clue what `__gte` does, but I cannot find good documentation on what it does either.

Is there documentation that I overlooked?

Any pointers in the right direction would be greatly appreciated. Thanks!