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Posted to issues@hive.apache.org by "Yu-Wen Lai (Jira)" <ji...@apache.org> on 2021/12/07 05:34:00 UTC

[jira] [Assigned] (HIVE-25779) Deduplicate SerDe Info

     [ https://issues.apache.org/jira/browse/HIVE-25779?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yu-Wen Lai reassigned HIVE-25779:
---------------------------------


> Deduplicate SerDe Info
> ----------------------
>
>                 Key: HIVE-25779
>                 URL: https://issues.apache.org/jira/browse/HIVE-25779
>             Project: Hive
>          Issue Type: New Feature
>          Components: Standalone Metastore
>            Reporter: Yu-Wen Lai
>            Assignee: Yu-Wen Lai
>            Priority: Major
>
> We can reuse serde info as how we reuse column descriptors. (HIVE-2246)
> Currently, each storage descriptor has a associated and exclusive serde info, but the partitions' serde infos are mostly just the same as the table's. By reusing the serde info, we can saving some database storage and possibly enhance the query performance from HMS to the backend database.
>  



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