Kurt Young created FLINK-21236:
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Summary: Don't explicitly use HeapMemorySegment in row format serde
Key: FLINK-21236
URL: https://issues.apache.org/jira/browse/FLINK-21236
Project: Flink
Issue Type: Improvement
Components: Table SQL / Planner
Affects Versions: 1.12.0
Reporter: Kurt Young
Fix For: 1.13.0
`RawFormatDeserializationSchema` and `RawFormatSerializationSchema` explicitly
used `HeapMemorySegment`, and in a typical batch job, `HybridMemorySegment`
will also be loaded and used as managed memory. This will prevent Class
Hierarchy Analysis (CHA) to optimize the function call of MemorySegment. More
details can be found here:
[https://flink.apache.org/news/2015/09/16/off-heap-memory.html]
We can use `ByteBuffer` instead of `HeapMemorySegment`.
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