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https://issues.apache.org/jira/browse/HUDI-6621?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated HUDI-6621:
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Labels: pull-request-available (was: )
> Add a downgrade step from 6 to 5 to detect new delete blocks
> ------------------------------------------------------------
>
> Key: HUDI-6621
> URL: https://issues.apache.org/jira/browse/HUDI-6621
> Project: Apache Hudi
> Issue Type: Improvement
> Reporter: Ethan Guo
> Assignee: Ethan Guo
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.14.0
>
>
> In table version 6, we introduce a new delete block format (v3) with Avro
> serde (HUDI-5760). For downgrading a table from v6 to v5, we need to perform
> compaction to handle v3 delete blocks created using the new format.
> Also with the addition of record index field in Metadata table schema, the
> downgrade needs to delete the metadata table to avoid column drop errors
> after downgrade.
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