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Answers and rating deltas for
Update table from another table in SQL is giving an unexpected result
| Author | Votes | Δ |
|---|---|---|
| BlueMonkMN | 1 | +0.86 |
| ankit garg | 1 | +2.90 |
| Artjoman | 0 | -2.38 |
| jpw | 0 | -0.92 |
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