madlib/madlib — pull request #213 by KevinYL (2012-08-23 06:24:48+00:00)
Title: BugFix: MADLIB-601

quantile_big uses INT/FLOAT to store the number of rows in the table.
If the number of rows in the table exceeds 2^31, the integer will
overflow. At the same time, cast count(*) to FLOAT may cause issues.

To fix it, we use INT8 instead.