Martin Radev created ARROW-6216:
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Summary: Allow user to select the ZSTD compression level
Key: ARROW-6216
URL: https://issues.apache.org/jira/browse/ARROW-6216
Project: Apache Arrow
Issue Type: Improvement
Components: C++
Reporter: Martin Radev
The compression level selected in Arrow for ZSTD is 1 which is the minimal
compression level for the compressor. This leads to very high compression speed
at the sacrifice of compression ratio.
The user should be allowed to select the compression level as both speed and
ratio are data specific.
The proposed solution is to expose the knob via an environment variable such as
ARROW_ZSTD_COMPRESSION_LEVEL.
Example:
export ARROW_ZSTD_COMPRESSION_LEVEL=10
./my_parquet_app
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