fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph

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slk 95305c44a1 Add OpenAndTrimHistory API to support trimming data with specified timestamp (#9410) ... Summary: As disscussed in (https://github.com/facebook/rocksdb/issues/9223), Here added a new API named DB::OpenAndTrimHistory, this API will open DB and trim data to the timestamp specofied by **trim_ts** (The data with newer timestamp than specified trim bound will be removed). This API should only be used at a timestamp-enabled db instance recovery. And this PR implemented a new iterator named HistoryTrimmingIterator to support trimming history with a new API named DB::OpenAndTrimHistory. HistoryTrimmingIterator wrapped around the underlying InternalITerator such that keys whose timestamps newer than **trim_ts** should not be returned to the compaction iterator while **trim_ts** is not null. Pull Request resolved: https://github.com/facebook/rocksdb/pull/9410 Reviewed By: ltamasi Differential Revision: D34410207 Pulled By: riversand963 fbshipit-source-id: e54049dc234eccd673244c566b15df58df5a6236		3 years ago
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rocksdb	Add OpenAndTrimHistory API to support trimming data with specified timestamp (#9410)	3 years ago