[Bug]: possible non-repeatable read

[XuPeng-SH]

Is there an existing issue for the same bug?

• [X] I have checked the existing issues.

Environment

- Version or commit-id (e.g. v0.1.0 or 8b23a93):
- Hardware parameters:
- OS type:
- Others:

Actual Behavior

When the transaction is in the ready-to-commit queue, it has updated the commit timestamp. If the start timestamp of any transaction is later than the commit timestamp, it needs to wait for the transaction to commit or roll back. There will currently be a gap where the active transaction cannot see the committing transactions and will not wait for the transactions. After this period of time, if the data is read again, it is possible to see the committed data, resulting in a non-repeatable read exception.

Expected Behavior

No response

Steps to Reproduce

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Additional information

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