feature: integrate Sonata's global serializability support in xa mode #7754
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Ⅰ. Describe what this PR did
This PR integrates the global serializability protocols from the Soanta paper to offer better isolation/consistency guarantees in XA mode. This discussion gives more details.
Ⅱ. Does this pull request fix one issue?
No.
Ⅲ. Why don't you add test cases (unit test/integration test)?
Little familiarity with the test structure and limited time budget.
Ⅳ. Describe how to verify it
The correctness of the protocols is proven in the research paper and the implementation is mainly a rework of the research prototype, which has been extensively evaluated under various complex workloads, including TPC-C.
Ⅴ. Special notes for reviews