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

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Andrew Kryczka 3771e37970 WriteBatch support for range deletion ... Summary: Add API to WriteBatch to store range deletions in its buffer which are later added to memtable. In the WriteBatch buffer, a range deletion is encoded as "<optype><CF ID (optional)><begin key><end key>". With this diff, the range tombstones are stored inline with the data in the memtable. It's useful for now because the test cases rely on the data being accessible via memtable. My next step is to store range tombstones in a separate area in the memtable. Test Plan: unit tests Reviewers: IslamAbdelRahman, sdong, wanning Reviewed By: wanning Subscribers: andrewkr, dhruba, leveldb Differential Revision: https://reviews.facebook.net/D61401		8 years ago
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write_batch_with_index.cc	WriteBatch support for range deletion	8 years ago
write_batch_with_index_internal.cc	WriteBatch support for range deletion	8 years ago
write_batch_with_index_internal.h	Modification of WriteBatch to support two phase commit	8 years ago
write_batch_with_index_test.cc	Add a GetComparator() function to the ColumnFamilyHandle base class so that the user's comparator can be retrieved.	8 years ago