Yifan Cai created CASSANDRA-20938:
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Summary: Support external ZSTD dictionary in CQLSSTableWriter
Key: CASSANDRA-20938
URL: https://issues.apache.org/jira/browse/CASSANDRA-20938
Project: Apache Cassandra
Issue Type: New Feature
Reporter: Yifan Cai
Assignee: Yifan Cai
Extend CQLSSTableWriter to accept an external ZSTD compression dictionary for
writing SSTables.
- Add a new option to pass the dictionary.
- Dictionary is only applied if the table schema indicates ZSTD compression
with dictionary enabled.
- Document best practices: external tooling invoking CQLSSTableWriter should
fetch the current dictionary from Cassandra to avoid excessive dictionary
proliferation.
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