JingsongLi opened a new pull request, #594: URL: https://github.com/apache/flink-table-store/pull/594
### Introduce `LookupMergeFunction` When Lookup Changelog producer is enabled, each merge will query the old merged record, so the latest high level record should be the final merged value. ### Introduce `ForceUpLevel0Compaction` Because changelog is generated when level 0 is merged to a higher level, we need a compaction policy to ensure that changelog is generated each time. ### Introduce `LookupChangelogMergeFunctionWrapper` Changelog records are generated in the process of the level-0 file participating in the compaction, if during the compaction processing: - Without level-0 records, no changelog. - With level-0 record, with level-x (x > 0) record, level-x record should be BEFORE, level-0 should be AFTER. - With level-0 record, without level-x record, need to lookup the history value of the upper level as BEFORE. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@flink.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
