Details
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Improvement
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Status: Closed
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Major
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Resolution: Invalid
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0.15.0
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None
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None
Description
Using the example at https://github.com/apache/arrow/tree/master/rust/parquet is slow.
The snippet
let reader = SerializedFileReader::new(file).unwrap();
let mut iter = reader.get_row_iter(None).unwrap();
let start = Instant::now();
while let Some(record) = iter.next() {}
let duration = start.elapsed();
println!("{:?}", duration);
Runs for 17sec for a ~160MB parquet file.
If there is a more effective way to load a parquet file, it would be nice to add it to the readme.
P.S.: My goal is to construct an ndarray from it, I'd be happy for any tips.