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by mrtracy
3690 days ago
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CockroachDB is optimistically concurrent, so there is not locking. However, your use case is definitely possible. The transaction would:
1. Read the current document (i'm assuming this needs to be done to compute the translog).
2. Read the latest ID in the translog table
3. Write a new entry to translog with ID+1
4. Write the document. If any other transaction interleaves with this process (by either reading or writing one of the same keys in a way that would violate isolation), one of the two transactions will be aborted. |
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