Max Burke created ARROW-7681:
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Summary: Explicitly seeking a BufReader will discard the internal
buffer
Key: ARROW-7681
URL: https://issues.apache.org/jira/browse/ARROW-7681
Project: Apache Arrow
Issue Type: Bug
Reporter: Max Burke
This behavior was observed in the Parquet Rust file reader
(parquet/src/util/io.rs).
Pull request: [https://github.com/apache/arrow/pull/6280]
>From the Rust documentation for BufReader:
"Seeking always discards the internal buffer, even if the seek position would
otherwise fall within it. This guarantees that calling {{.into_inner()}}
immediately after a seek yields the underlying reader at the same position."
[https://doc.rust-lang.org/std/io/struct.BufReader.html#impl-Seek]
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