David Li created PARQUET-1993:
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Summary: [C++] Expose when prefetching completes
Key: PARQUET-1993
URL: https://issues.apache.org/jira/browse/PARQUET-1993
Project: Parquet
Issue Type: Improvement
Components: parquet-cpp
Reporter: David Li
Assignee: David Li
As a follow up to PARQUET-1820, we should let an application be notified when
pre-buffering has completed (e.g. PreBuffer() should return Future<void>). This
would let an application pre-buffer some amount of data (across multiple files
and/or row groups) and then decode data as it becomes available instead of
blocking.
A more ergonomic API would be to expose Future<RecordBatchReader> or something
along those lines.
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