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Answers and rating deltas for
How can I enforce a constraint only if a column is not null in Postgresql?
Author | Votes | Δ |
---|---|---|
derobert | 4 | +3.69 |
Dana the Sane | 1 | +1.98 |
SingleNegationElimination | 1 | +0.81 |
Troels Arvin | 0 | -3.22 |
Brian Fisher | 0 | -3.25 |
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