ContinuumIO/blaze — pull request #400 by mrocklin (2014-07-16 15:45:56+00:00)
Title: Reduction dshape and csv missing values

Two small changes:

Rules for dshapes of reductions like the following:

sum(dtype) :: dtype
count(anything) :: int

Additionally the names of the reduction are now appended onto the dshape, e.g.

>>> t['amount'].sum().dshape
{amount_sum: float64}

Also CSV now support missing values by default