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Posted to commits@cassandra.apache.org by "Stefan Miklosovic (Jira)" <ji...@apache.org> on 2025/10/20 18:08:00 UTC

[jira] [Updated] (CASSANDRA-20938) Support external ZSTD dictionary in CQLSSTableWriter

     [ https://issues.apache.org/jira/browse/CASSANDRA-20938?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Stefan Miklosovic updated CASSANDRA-20938:
------------------------------------------
    Test and Documentation Plan: ci
                         Status: Patch Available  (was: Open)

> 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
>          Components: Legacy/Core
>            Reporter: Yifan Cai
>            Assignee: Stefan Miklosovic
>            Priority: Normal
>             Fix For: 5.x
>
>
> 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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