Yiqun Zhang created ORC-1123:
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             Summary: Add `estimationMemory` method for writer
                 Key: ORC-1123
                 URL: https://issues.apache.org/jira/browse/ORC-1123
             Project: ORC
          Issue Type: Improvement
          Components: Java
    Affects Versions: 1.6.13
            Reporter: Yiqun Zhang


Add `estimationMemory` method for writer so that the write engine can better 
control the ORC refresh policy. 

The source of this issue comes from Iceberg's discussion.

https://lists.apache.org/thread/g6yo7m46mr86ov1vkm9wnmshgw7hcl6b



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