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Answers and rating deltas for
How to efficiently check if two columns in the same table is one-to-one mapping?
| Author | Votes | Δ |
|---|---|---|
| BeanFrog | 2 | +3.75 |
| Eric | 1 | -0.02 |
| Vicky_Burnwal | 1 | +0.49 |
| Jaydip Jadhav | 1 | -0.03 |
| LUSAQX | 0 | -3.83 |
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