FrankChen021 commented on code in PR #20296:
URL: https://github.com/apache/druid/pull/20296#discussion_r3957838739
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pom.xml:
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@@ -706,7 +706,7 @@
<dependency>
<groupId>com.github.luben</groupId>
<artifactId>zstd-jni</artifactId>
- <version>1.5.7-11</version>
+ <version>1.5.7-15</version>
Review Comment:
[P2] Upgrading past -12 drops legacy Zstandard decoding
`zstd-jni` documents 1.5.7-12 as the last release that supports the legacy
0.4–0.7 formats; 1.5.7-15 removes them (see
https://github.com/luben/zstd-jni#status-and-availability). Druid exposes
`.zst` as a supported batch-ingestion format, and
`processing/src/main/java/org/apache/druid/utils/CompressionUtils.java:808-809`
constructs `ZstdCompressorInputStream` from this same dependency, so existing
legacy `.zst` inputs that worked with 1.5.7-11 will now fail during ingestion.
Please retain a legacy-capable version (if Parquet works with it) or explicitly
handle, document, and test this compatibility break before merging.
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