StackRating
An Elo-based rating system for Stack Overflow
Answers and rating deltas for
most optimized way to get number of unique rows in a column spark data frame
| Author | Votes | Δ |
|---|---|---|
| Alberto Bonsanto | 3 | +0.55 |
| KiranM | 1 | -0.18 |
| mark | 0 | -4.18 |
Last visited: Oct 22, 2016, 9:11:12 PM