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Answers and rating deltas for
How do I find the sum of two categories for each year in this PostgreSQL dataset?
| Author | Votes | Δ |
|---|---|---|
| Erwin Brandstetter | 1 | -0.19 |
| Gabbar | 1 | +1.54 |
Last visited: Sep 14, 2014, 5:07:29 AM