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

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Yanqin Jin 6f12599863 Support WBWI for keys having timestamps (#9603) ... Summary: This PR supports inserting keys to a `WriteBatchWithIndex` for column families that enable user-defined timestamps and reading the keys back. **The index does not have timestamps.** Writing a key to WBWI is unchanged, because the underlying WriteBatch already supports it. When reading the keys back, we need to make sure to distinguish between keys with and without timestamps before comparison. When user calls `GetFromBatchAndDB()`, no timestamp is needed to query the batch, but a timestamp has to be provided to query the db. The assumption is that data in the batch must be newer than data from the db. Pull Request resolved: https://github.com/facebook/rocksdb/pull/9603 Test Plan: make check Reviewed By: ltamasi Differential Revision: D34354849 Pulled By: riversand963 fbshipit-source-id: d25d1f84e2240ce543e521fa30595082fb8db9a0		2 years ago
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write_batch_with_index.cc	Support WBWI for keys having timestamps (#9603)	2 years ago
write_batch_with_index_internal.cc	Support WBWI for keys having timestamps (#9603)	2 years ago
write_batch_with_index_internal.h	Support WBWI for keys having timestamps (#9603)	2 years ago
write_batch_with_index_test.cc	Support WBWI for keys having timestamps (#9603)	2 years ago