etseidl commented on code in PR #6848:
URL: https://github.com/apache/arrow-rs/pull/6848#discussion_r1876268618
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parquet/src/arrow/arrow_reader/statistics.rs:
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@@ -1432,6 +1432,24 @@ impl<'a> StatisticsConverter<'a> {
Ok(UInt64Array::from_iter(null_counts))
}
+ /// Extract the uncompressed sizes from row group statistics in
[`RowGroupMetaData`]
Review Comment:
Bear in mind that `unencoded_byte_array_data_bytes` is only for byte array
data, and does not include any overhead introduced by Arrow (offsets array,
etc). For fixed width types it would be sufficient to know the total number of
values encoded.
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