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Answers and rating deltas for
How can I do the equivalent to this mysql in rails
| Author | Votes | Δ |
|---|---|---|
| Padhu | 0 | 0.00 |
Last visited: Feb 16, 2016, 6:13:00 AM
| Author | Votes | Δ |
|---|---|---|
| Padhu | 0 | 0.00 |