madlib/madlib — pull request #113 by aojwang (2012-02-08 04:18:14+00:00)
Title: Fixes for madlib-338/341

1. madlib-341: Check duplicated id values in training/classification table. (utility.sql_in)
2. MADLIB-338: Add check for NULL value. The error message will contain the table name.
3. Add an additional star (/**) to the classify, score, display, clean API.
4. Refine documentation for public API.