[core] Optimize ZSTD block decompression - #8865
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JingsongLi merged 1 commit intoJul 28, 2026
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Looks good. I verified the direct decompression path preserves source/destination offsets and translates zstd failures correctly. BlockCompressionTest passes locally.
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What changed
ZstdInputStreamandByteArrayInputStreamwith zstd-jni's direct byte-array decompression API.BufferDecompressionException.Why
Block decompression is a hot path for compressed local lookup data. The stream-based implementation allocates wrapper objects and repeatedly calls
read; the direct API decompresses the complete block into the caller-provided buffer in one native call.Validation
mvn -q -pl paimon-common -Pfast-build -DwildcardSuites=none -Dtest=BlockCompressionTest testmvn -q -pl paimon-common spotless:check -DskipTestsmvn -q -pl paimon-common -DskipTests compile