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https://issues.apache.org/jira/browse/FLINK-29842?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Caizhi Weng closed FLINK-29842.
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Resolution: Fixed
master: 350627439a70b187f7270278b497841fa3f2c554
release-0.2: bc5646cc62bb341954d6320c7f3ed375195e747f
> Change commitIdentifier in Table Store snapshot to long value
> -------------------------------------------------------------
>
> Key: FLINK-29842
> URL: https://issues.apache.org/jira/browse/FLINK-29842
> Project: Flink
> Issue Type: Improvement
> Components: Table Store
> Affects Versions: table-store-0.3.0, table-store-0.2.2
> Reporter: Caizhi Weng
> Assignee: Caizhi Weng
> Priority: Major
> Labels: pull-request-available
> Fix For: table-store-0.3.0, table-store-0.2.2
>
>
> Currently {{commitIdentifier}} in {{Snapshot}} is a {{String}} value. However
> there are many scenarios where we need to compare two identifiers to find out
> which one is newer. For example
> * In FLINK-29840, we need to store the latest modified commit for each
> writer. Only when the latest snapshot is newer than this commit can we safely
> close the writer.
> * In FLINK-29805, we can read the commit identifier of the latest snapshot.
> All identifiers older than that should be filtered out.
> * In FLINK-29752, we need to trigger full compaction once in a few commits.
> We can read the latest commit identifier and compare it with the full
> compaction identifier to check if full compaction is successfully committed.
>
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