Micah Kornfield created ARROW-12196:
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Summary: [C++] C++ IPC reading looks like it doesn't support
uncompressed buffers
Key: ARROW-12196
URL: https://issues.apache.org/jira/browse/ARROW-12196
Project: Apache Arrow
Issue Type: Bug
Components: C++
Reporter: Micah Kornfield
https://github.com/apache/arrow/blob/master/cpp/src/arrow/ipc/reader.cc#L411
does seems to check for the case (I'm not sure if this is the right code
though):
uncompressed length may be set to -1 to indicate that the data that follows
is not compressed, which can be useful for cases where compression does not
yield appreciable savings.
https://github.com/apache/arrow/blob/5cabd31c90dbb32d87074928f68bf5d6e97e37c6/format/Message.fbs#L59
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