Weston Pace created ARROW-14025:
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Summary: [R][C++] PreBuffer is not enabled when scanning parquet
via exec nodes
Key: ARROW-14025
URL: https://issues.apache.org/jira/browse/ARROW-14025
Project: Apache Arrow
Issue Type: Improvement
Components: C++, R
Reporter: Weston Pace
In ExecNode_Scan a ScanOptions object is built up. If we are reading parquet
we should enable pre-buffering. This is done by creating a
ParquetFragmentScanOptions object and enabling pre-buffering.
Alternatively, we could just default pre-buffering to true for asynchronous
scans of parquet data.
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