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• POC code: https://github.com/yunfengzhou-hub/flink/tree/optimize-record-serialize-2
• Benchmark code: https://github.com/yunfengzhou-hub/flink-benchmarks/tree/optimize-record-serialize

Note that the latest FLIP's design has changed the naming of part of the public API compared with when the POC code was implemented, so the POC code and the FLIP has some concept gap. But the main optimization still remains the same so the POC code can be used to demonstrate the potential performance improvement this FLIP could bring to Flink.

Compatibility, Deprecation, and Migration Plan

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