Gang Wu created ORC-1365:
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Summary: [C++] Use BlockBuffer to replace DataBuffer of
rawInputBuffer in the CompressionStream
Key: ORC-1365
URL: https://issues.apache.org/jira/browse/ORC-1365
Project: ORC
Issue Type: Improvement
Components: C++
Reporter: Gang Wu
Discussion from Github issue: [https://github.com/apache/orc/issues/1240]
In short, *CompressionStream* has fixed its input buffer to compression block
size (which is 1M by default). Check here for reference:
https://github.com/apache/orc/blob/main/c%2B%2B/src/Compression.cc#L108 . The
piece of code can be improved by replacing its type from DataBuffer by
BlockBuffer. In this way, it is able to start with a small initial size and
automatically grow as needed.
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