[ARROW-3831] [C++] arrow::util::Codec::Decompress() doesn't return decompressed data size

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.11.1
• Fix Version/s: 0.12.0
• Component/s: C++
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/20298
• Assignee: Kouhei Sutou
• Reporter: Kouhei Sutou
• Created: 17/Nov/18 22:47
• Updated: 11/Jan/23 07:30
• Resolved: 25/Nov/18 21:56

Description

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.

Issue Links

• links to: GitHub Pull Request #3024