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Update README.md

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Add warning to README.md that keys and values in `ForEach()` are
invalid outside of transaction.
This commit is contained in:
Roman Naumann 2016-09-13 11:19:31 +02:00
parent 9dffd9de3b
commit 1e271f5035
1 changed files with 4 additions and 0 deletions
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README.md
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@ -448,6 +448,10 @@ db.View(func(tx *bolt.Tx) error {
})
```
Please note that keys and values in `ForEach()` are only valid while
the transaction is open. If you need to use a key or value outside of
the transaction, you must use `copy()` to copy it to another byte
slice.
### Nested buckets