Fang Yonghao created ORC-2160:
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Summary: Expose prefetch range planning via Reader::preBufferRange
Key: ORC-2160
URL: https://issues.apache.org/jira/browse/ORC-2160
Project: ORC
Issue Type: Improvement
Reporter: Fang Yonghao
Because preBuffer does not expose the planned ranges, but external users now
have a multi-Reader scenario where different Readers prefetch different ranges
of the same file and share an external prebuffer cache, so they must know the
precise ranges in advance to coordinate prefetching and avoid duplicated work.
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