twitter/scalding — pull request #1140 by ianoc (2014-12-22 19:07:42+00:00)
Title: WIP, but main extractor paths seem to work

This adds a possible macro for building JDBC type sources.

Right now just a size annotation, also might need an unsigned one.

Number of types available probably needs to increase. But it seems to build most of the info we would need for a source