Kouhei Sutou created ARROW-3831:
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Summary: [C++] arrow::util::Codec::Decompress() doesn't return
decompressed data size
Key: ARROW-3831
URL: https://issues.apache.org/jira/browse/ARROW-3831
Project: Apache Arrow
Issue Type: Bug
Components: C++
Affects Versions: 0.11.1
Reporter: Kouhei Sutou
We can't know decompressed data size when we only have compressed data. The
current {{arrow::util::Codec::Decompress()}} doesn't return decompressed data
size. So we can't know which data in {{output_buffer}} can be used.
FYI: {{arrow::util::Codec::Compress()}} returns compressed data size.
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