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

Siying Dong c17383f918 Fix WriteBatchWithIndex's SeekForPrev() (#4559 An error occurred ) ... Summary: WriteBatchWithIndex's SeekForPrev() has a bug that we internally place the position just before the seek key rather than after. This makes the iterator to miss the result that is the same as the seek key. Fix it by position the iterator equal or smaller. Pull Request resolved: https://github.com/facebook/rocksdb/pull/4559 Differential Revision: D10468534 Pulled By: siying fbshipit-source-id: 2fb371ae809c561b60a1c11cef71e1c66fea1f19		7 years ago
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write_batch_with_index.cc	Fix WriteBatchWithIndex's SeekForPrev() (#4559 An error occurred )	7 years ago
write_batch_with_index_internal.cc	Fix WriteBatchWithIndex's SeekForPrev() (#4559 An error occurred )	7 years ago
write_batch_with_index_internal.h	Fix WriteBatchWithIndex's SeekForPrev() (#4559 An error occurred )	7 years ago
write_batch_with_index_test.cc	Fix WriteBatchWithIndex's SeekForPrev() (#4559 An error occurred )	7 years ago