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Answers and rating deltas for
How can I set a default for column B to be the value in column A in posgresql?
| Author | Votes | Δ |
|---|---|---|
| Craig Ringer | 2 | +0.27 |
| a_horse_with_no_name | 2 | +0.02 |
| dev langer | 1 | -2.34 |
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