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2a986919d6
Summary: Wrote a new function in db_impl.c-CheckKeyMayExist that calls Get but with a new parameter turned on which makes Get return false only if bloom filters can guarantee that key is not in database. Delete calls this function and if the option- deletes_use_filter is turned on and CheckKeyMayExist returns false, the delete will be dropped saving: 1. Put of delete type 2. Space in the db,and 3. Compaction time Test Plan: make all check; will run db_stress and db_bench and enhance unit-test once the basic design gets approved Reviewers: dhruba, haobo, vamsi Reviewed By: haobo CC: leveldb Differential Revision: https://reviews.facebook.net/D11607 |
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| .. | ||
| block.cc | ||
| block.h | ||
| block_builder.cc | ||
| block_builder.h | ||
| block_test.cc | ||
| filter_block.cc | ||
| filter_block.h | ||
| filter_block_test.cc | ||
| format.cc | ||
| format.h | ||
| iter_heap.h | ||
| iterator.cc | ||
| iterator_wrapper.h | ||
| merger.cc | ||
| merger.h | ||
| table.cc | ||
| table.h | ||
| table_builder.cc | ||
| table_test.cc | ||
| two_level_iterator.cc | ||
| two_level_iterator.h | ||