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https://issues.apache.org/jira/browse/FLINK-28244?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jingsong Lee closed FLINK-28244.
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Resolution: Fixed
master: 83a321fa116f9dc520d7ea936ce6103e1cb45869
> Introduce changelog file for DataFile
> -------------------------------------
>
> Key: FLINK-28244
> URL: https://issues.apache.org/jira/browse/FLINK-28244
> Project: Flink
> Issue Type: New Feature
> Components: Table Store
> Reporter: Jingsong Lee
> Assignee: Jingsong Lee
> Priority: Major
> Labels: pull-request-available
> Fix For: table-store-0.2.0
>
>
> When using TableStore to support stream consumption, there are two
> requirements.
> * Downstream gets all changelogs
> * The order of stream consumption is the order of input
> For append only table, it is easy to meet both.
> But for the primary key table, Its files are all sorted and de-duplicated by
> pk, making it impossible to meet the above expectations.
> We can output another ChangelogFile when the DataFile flush, and the stream
> reads it directly.
> We can modify DataFileMeta:
> {code:java}
> class DataFileMeta {
> String fileName;
> .....
> // store the name of extra files, extra files including changelog_file,
> primary_key_index_file, secondary_index_file, and etc...
> List<String> extraFiles;
> }
> {code}
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