Jay Zhuang 6cde8d2190 Deprecating iter_start_seqnum and preserve_deletes (#9091) ... Summary: `ReadOptions::iter_start_seqnum` and `DBOptions::preserve_deletes` are deprecated, please try using user defined timestamp feature instead. The feature is used to support differential snapshots, but not well maintained (https://github.com/facebook/rocksdb/issues/6837, https://github.com/facebook/rocksdb/issues/8472) and the interface is not user friendly which returns an internal key from the iterator. The user defined timestamp feature is a more flexible feature to support similar usecase, please switch to that if you have such usecase. The deprecated feature will be removed in a future release. Pull Request resolved: https://github.com/facebook/rocksdb/pull/9091 Test Plan: check LOG Fix https://github.com/facebook/rocksdb/issues/9090 Reviewed By: ajkr Differential Revision: D32071750 Pulled By: jay-zhuang fbshipit-source-id: b882c4668dd1bf26ce03c4c192f1bba584bf6104		2021-11-19 16:55:45 -08:00
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rocksdb	Deprecating iter_start_seqnum and preserve_deletes (#9091)	2021-11-19 16:55:45 -08:00