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https://issues.apache.org/jira/browse/HUDI-4276?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated HUDI-4276:
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Labels: pull-request-available schema-evolution (was: schema-evolution)
> Reconcile schema - inject null values for missing fields and add new fields
> ---------------------------------------------------------------------------
>
> Key: HUDI-4276
> URL: https://issues.apache.org/jira/browse/HUDI-4276
> Project: Apache Hudi
> Issue Type: Improvement
> Reporter: kazdy
> Assignee: tao meng
> Priority: Blocker
> Labels: pull-request-available, schema-evolution
> Fix For: 0.12.0
>
>
> Improve schema reconciliation to make it more flexible in presence of full
> schema evolution being enabled.
> Desired behavior:
> # incoming data has missing columns that were already defined in the table
> –> null values will be injected into missing columns
> # incoming data contains new columns not defined yet in the table -> columns
> will be added to the table schema (incoming dataframe?)
> # incoming data has missing columns that are already defined in the table
> and new columns not yet defined in the table -> new columns will be added to
> the table schema, missing columns will be injected with null values
> No column should be dropped when using hive sync utility when schema
> reconciliation is enabled.
> Related GH issue:
> [https://github.com/apache/hudi/issues/5873]
>
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