madlib/madlib — pull request #178 by fschopp (2012-07-17 06:35:29+00:00)
Title: Added a sampling module, currently containing only weighted_sample().

*Please let me know if you have comments. I'll merge myself then.*

Jira: MADLIB-584

Sampling module:
- Added a data-parallel UDA for weighted sampling of a single row

C++ AL:
- Added a boost/TR1-style front-end to PostgreSQL's random number generator.