ContinuumIO/blaze — pull request #328 by mrocklin (2014-06-11 00:33:46+00:00)
Title: Jaccard fix

A variety of bugfixes. The only thing they have in common is that they popped up when I was going through Jaccard similarity.

The biggest is probably a Collect operation that re-combines several column datasets back into a table. Somewhat like `numpy.hstack`. Thinking about renaming it to `merge`. Pandas uses `concat(..., axis=1)`.