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https://issues.apache.org/jira/browse/FLINK-23953?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Flink Jira Bot updated FLINK-23953:
-----------------------------------
Labels: Avro AvroSchema auto-deprioritized-major pull-request-available
(was: Avro AvroSchema pull-request-available stale-major)
Priority: Minor (was: Major)
This issue was labeled "stale-major" 7 days ago and has not received any
updates so it is being deprioritized. If this ticket is actually Major, please
raise the priority and ask a committer to assign you the issue or revive the
public discussion.
> AvroSerializerSnapshot causes state migration even though the old and the new
> schemas are compatible
> ----------------------------------------------------------------------------------------------------
>
> Key: FLINK-23953
> URL: https://issues.apache.org/jira/browse/FLINK-23953
> Project: Flink
> Issue Type: Bug
> Components: API / Type Serialization System
> Affects Versions: 1.13.2
> Reporter: Iaroslav Zeigerman
> Priority: Minor
> Labels: Avro, AvroSchema, auto-deprioritized-major,
> pull-request-available
>
> The problematic code is located
> [here|https://github.com/apache/flink/blob/release-1.13.2/flink-formats/flink-avro/src/main/java/org/apache/flink/formats/avro/typeutils/AvroSerializerSnapshot.java#L194].
> Returning COMPATIBLE_AFTER_MIGRATION seems completely unnecessary and causes
> issues during schema evolution. The COMPATIBLE_AS_IS status should be
> returned instead. Even the comment right above the shared snippet suggests
> that:
> {noformat}
> // The new serializer would be able to read data
> persisted with *this*
> // serializer, therefore no migration
> // is required.
> {noformat}
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