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

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Yanqin Jin 340ed4fac7 Add support for timestamp in Get/Put (#5079) ... Summary: It's useful to be able to (optionally) associate key-value pairs with user-provided timestamps. This PR is an early effort towards this goal and continues the work of facebook#4942. A suite of new unit tests exist in DBBasicTestWithTimestampWithParam. Support for timestamp requires the user to provide timestamp as a slice in `ReadOptions` and `WriteOptions`. All timestamps of the same database must share the same length, format, etc. The format of the timestamp is the same throughout the same database, and the user is responsible for providing a comparator function (Comparator) to order the <key, timestamp> tuples. Once created, the format and length of the timestamp cannot change (at least for now). Test plan (on devserver): ``` $COMPILE_WITH_ASAN=1 make -j32 all $./db_basic_test --gtest_filter=Timestamp/DBBasicTestWithTimestampWithParam.PutAndGet/* $make check ``` All tests must pass. We also run the following db_bench tests to verify whether there is regression on Get/Put while timestamp is not enabled. ``` $TEST_TMPDIR=/dev/shm ./db_bench -benchmarks=fillseq,readrandom -num=1000000 $TEST_TMPDIR=/dev/shm ./db_bench -benchmarks=fillrandom -num=1000000 ``` Repeat for 6 times for both versions. Results are as follows: ``` | | readrandom | fillrandom | | master | 16.77 MB/s | 47.05 MB/s | | PR5079 | 16.44 MB/s | 47.03 MB/s | ``` Pull Request resolved: https://github.com/facebook/rocksdb/pull/5079 Differential Revision: D15132946 Pulled By: riversand963 fbshipit-source-id: 833a0d657eac21182f0f206c910a6438154c742c		6 years ago
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adaptive	Organizing rocksdb/table directory by format	6 years ago
block_based	Add support for timestamp in Get/Put (#5079)	6 years ago
cuckoo	Move some memory related files from util/ to memory/ (#5382)	6 years ago
plain	Move some memory related files from util/ to memory/ (#5382)	6 years ago
block_fetcher.cc	Move some logging related files to logging/ (#5387)	6 years ago
block_fetcher.h	Move some memory related files from util/ to memory/ (#5382)	6 years ago
bloom_block.cc	Change RocksDB License	8 years ago
bloom_block.h	Disallow customized hash function in DynamicBloom (#4915)	6 years ago
cleanable_test.cc	Move test related files under util/ to test_util/ (#5377)	6 years ago
format.cc	Move some logging related files to logging/ (#5387)	6 years ago
format.h	Move some memory related files from util/ to memory/ (#5382)	6 years ago
full_filter_bits_builder.h	Skip duplicate bloom keys when whole_key and prefix are mixed	7 years ago
get_context.cc	Add support for timestamp in Get/Put (#5079)	6 years ago
get_context.h	Move some memory related files from util/ to memory/ (#5382)	6 years ago
internal_iterator.h	Reduce iterator key comparison for upper/lower bound check (#5111)	6 years ago
iter_heap.h	Make InternalKeyComparator final and directly use it in merging iterator	7 years ago
iterator.cc	Move some memory related files from util/ to memory/ (#5382)	6 years ago
iterator_wrapper.h	Reduce iterator key comparison for upper/lower bound check (#5111)	6 years ago
merger_test.cc	Move test related files under util/ to test_util/ (#5377)	6 years ago
merging_iterator.cc	Move some memory related files from util/ to memory/ (#5382)	6 years ago
merging_iterator.h	Index value delta encoding (#3983)	6 years ago
meta_blocks.cc	Move some memory related files from util/ to memory/ (#5382)	6 years ago
meta_blocks.h	Organizing rocksdb/table directory by format	6 years ago
mock_table.cc	Refresh snapshot list during long compactions (2nd attempt) (#5278)	6 years ago
mock_table.h	Move some memory related files from util/ to memory/ (#5382)	6 years ago
multiget_context.h	multiget: fix memory issues due to vector auto resizing (#5279)	6 years ago
persistent_cache_helper.cc	Organizing rocksdb/table directory by format	6 years ago
persistent_cache_helper.h	Change RocksDB License	8 years ago
persistent_cache_options.h	Change RocksDB License	8 years ago
scoped_arena_iterator.h	Change RocksDB License	8 years ago
sst_file_reader.cc	Fix SstFileReader not able to open ingested file (#5097)	6 years ago
sst_file_reader_test.cc	Move test related files under util/ to test_util/ (#5377)	6 years ago
sst_file_writer.cc	Move some memory related files from util/ to memory/ (#5382)	6 years ago
sst_file_writer_collectors.h	Fix SstFileReader not able to open ingested file (#5097)	6 years ago
table_builder.h	Periodic Compactions (#5166)	6 years ago
table_properties.cc	Organizing rocksdb/table directory by format	6 years ago
table_properties_internal.h	Index value delta encoding (#3983)	6 years ago
table_reader.h	Comments for BlockBasedTable	6 years ago
table_reader_bench.cc	Organizing rocksdb/db directory	6 years ago
table_test.cc	Move some memory related files from util/ to memory/ (#5382)	6 years ago
two_level_iterator.cc	Move some memory related files from util/ to memory/ (#5382)	6 years ago
two_level_iterator.h	Index value delta encoding (#3983)	6 years ago