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Maysam Yabandeh 402b7aa07f Exclude seq from index keys 
Summary:
Index blocks have the same format as data blocks. The keys therefore similarly to the keys in the data blocks are internal keys, which means that in addition to the user key it also has 8 bytes that encodes sequence number and value type. This extra 8 bytes however is not necessary in index blocks since the index keys act as an separator between two data blocks. The only exception is when the last key of a block and the first key of the next block share the same user key, in which the sequence number is required to act as a separator.
The patch excludes the sequence from index keys only if the above special case does not happen for any of the index keys. It then records that in the property block. The reader looks at the property block to see if it should expect sequence numbers in the keys of the index block.s
Closes https://github.com/facebook/rocksdb/pull/3894

Differential Revision: D8118775

Pulled By: maysamyabandeh

fbshipit-source-id: 915479f028b5799ca91671d67455ecdefbd873bd
 		2018-05-25 18:42:43 -07:00
..
aligned_buffer.h Align SST file data blocks to avoid spanning multiple pages 2018-03-26 20:26:10 -07:00
allocator.h Change RocksDB License 2017-07-15 16:11:23 -07:00
arena.cc comment unused parameters to turn on -Wunused-parameter flag 2018-04-12 17:59:16 -07:00
arena.h arena: derive alignment unit from std::max_align_t 2017-10-17 11:13:19 -07:00
arena_test.cc arena: derive alignment unit from std::max_align_t 2017-10-17 11:13:19 -07:00
auto_roll_logger.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
auto_roll_logger.h Fix the Logger::Close() and DBImpl::Close() design pattern 2018-02-23 13:57:26 -08:00
auto_roll_logger_test.cc fix memory leak in two_level_iterator 2018-04-15 17:26:26 -07:00
autovector.h Change RocksDB License 2017-07-15 16:11:23 -07:00
autovector_test.cc fix memory leak in two_level_iterator 2018-04-15 17:26:26 -07:00
bloom.cc comment unused parameters to turn on -Wunused-parameter flag 2018-04-12 17:59:16 -07:00
bloom_test.cc fix gflags namespace 2017-12-01 10:42:05 -08:00
build_version.cc.in Makefile: generate util/build_version.cc from .in file (#1384) 2016-10-25 11:31:39 -07:00
build_version.h Change RocksDB License 2017-07-15 16:11:23 -07:00
cast_util.h Add a missing "once" in .h 2017-07-31 12:12:03 -07:00
channel.h Change RocksDB License 2017-07-15 16:11:23 -07:00
coding.cc Enable MSVC W4 with a few exceptions. Fix warnings and bugs 2017-10-19 10:57:12 -07:00
coding.h Change RocksDB License 2017-07-15 16:11:23 -07:00
coding_test.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
compaction_job_stats_impl.cc comment unused parameters to turn on -Wunused-parameter flag 2018-04-12 17:59:16 -07:00
comparator.cc Implement key shortening functions in ReverseBytewiseComparator 2018-05-17 18:27:16 -07:00
compression.h Introduce library-independent default compression level 2018-05-23 18:42:08 -07:00
concurrent_arena.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
concurrent_arena.h util: Fix coverity issues 2017-11-03 14:42:08 -07:00
core_local.h Change RocksDB License 2017-07-15 16:11:23 -07:00
crc32c.cc Suppress UBSAN error in finer guanularity 2018-02-13 12:18:07 -08:00
crc32c.h Updated CRC32 Power Optimization Changes 2017-08-31 14:16:30 -07:00
crc32c_ppc.c Updated CRC32 Power Optimization Changes 2017-08-31 14:16:30 -07:00
crc32c_ppc.h Updated CRC32 Power Optimization Changes 2017-08-31 14:16:30 -07:00
crc32c_ppc_asm.S Updated CRC32 Power Optimization Changes 2017-08-31 14:16:30 -07:00
crc32c_ppc_constants.h Make it explicit blob db doesn't support CF 2017-09-08 11:11:04 -07:00
crc32c_test.cc Port 3 way SSE4.2 crc32c implementation from Folly 2017-12-19 18:26:49 -08:00
delete_scheduler.cc Sync parent directory after deleting a file in delete scheduler 2018-04-26 13:58:20 -07:00
delete_scheduler.h Sync parent directory after deleting a file in delete scheduler 2018-04-26 13:58:20 -07:00
delete_scheduler_test.cc Sync parent directory after deleting a file in delete scheduler 2018-04-26 13:58:20 -07:00
duplicate_detector.h Improve db_stress with transactions 2018-04-18 16:32:35 -07:00
dynamic_bloom.cc Use nullptr instead of NULL / 0 more consistently. 2018-03-07 12:42:12 -08:00
dynamic_bloom.h Enable MSVC W4 with a few exceptions. Fix warnings and bugs 2017-10-19 10:57:12 -07:00
dynamic_bloom_test.cc fix gflags namespace 2017-12-01 10:42:05 -08:00
event_logger.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
event_logger.h Change RocksDB License 2017-07-15 16:11:23 -07:00
event_logger_test.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
fault_injection_test_env.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
fault_injection_test_env.h Fix FaultInjectionTestEnv to work with DirectIO 2018-03-14 00:57:24 -07:00
file_reader_writer.cc Apply use_direct_io_for_flush_and_compaction to writes only 2018-05-09 19:42:58 -07:00
file_reader_writer.h Pass manual_wal_flush also to the first wal file 2018-05-14 10:57:56 -07:00
file_reader_writer_test.cc Comment out unused variables 2018-03-05 13:13:41 -08:00
file_util.cc Sync parent directory after deleting a file in delete scheduler 2018-04-26 13:58:20 -07:00
file_util.h Sync parent directory after deleting a file in delete scheduler 2018-04-26 13:58:20 -07:00
filelock_test.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
filename.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
filename.h Change RocksDB License 2017-07-15 16:11:23 -07:00
filter_policy.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
gflags_compat.h fix gflags namespace 2017-12-01 10:42:05 -08:00
hash.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
hash.h Change RocksDB License 2017-07-15 16:11:23 -07:00
hash_map.h Change RocksDB License 2017-07-15 16:11:23 -07:00
hash_test.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
heap.h Change RocksDB License 2017-07-15 16:11:23 -07:00
heap_test.cc fix gflags namespace 2017-12-01 10:42:05 -08:00
kv_map.h Change RocksDB License 2017-07-15 16:11:23 -07:00
log_buffer.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
log_buffer.h Change RocksDB License 2017-07-15 16:11:23 -07:00
log_write_bench.cc fix gflags namespace 2017-12-01 10:42:05 -08:00
logging.h Change RocksDB License 2017-07-15 16:11:23 -07:00
memory_usage.h Change RocksDB License 2017-07-15 16:11:23 -07:00
murmurhash.cc Suppress UBSAN error in finer guanularity 2018-02-13 12:18:07 -08:00
murmurhash.h Change RocksDB License 2017-07-15 16:11:23 -07:00
mutexlock.h Change RocksDB License 2017-07-15 16:11:23 -07:00
ppc-opcode.h Updated CRC32 Power Optimization Changes 2017-08-31 14:16:30 -07:00
random.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
random.h Change RocksDB License 2017-07-15 16:11:23 -07:00
rate_limiter.cc rate limit auto-tuning 2017-10-04 19:15:01 -07:00
rate_limiter.h rate limit auto-tuning 2017-10-04 19:15:01 -07:00
rate_limiter_test.cc comment unused parameters to turn on -Wunused-parameter flag 2018-04-12 17:59:16 -07:00
set_comparator.h WritePrepared Txn: Move DuplicateDetector to util 2018-03-05 23:57:12 -08:00
slice.cc Comment out unused variables 2018-03-05 13:13:41 -08:00
slice_transform_test.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
sst_file_manager_impl.cc Sync parent directory after deleting a file in delete scheduler 2018-04-26 13:58:20 -07:00
sst_file_manager_impl.h Sync parent directory after deleting a file in delete scheduler 2018-04-26 13:58:20 -07:00
status.cc make MockTimeEnv::current_time_ atomic to fix data race 2018-04-10 14:13:18 -07:00
status_message.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
stderr_logger.h Change RocksDB License 2017-07-15 16:11:23 -07:00
stop_watch.h Change RocksDB License 2017-07-15 16:11:23 -07:00
string_util.cc Several small "fixes" 2018-02-15 16:57:37 -08:00
string_util.h Change RocksDB License 2017-07-15 16:11:23 -07:00
sync_point.cc Refactor sync_point to make implementation either customizable or replaceable 2018-03-23 12:56:52 -07:00
sync_point.h Refactor sync_point to make implementation either customizable or replaceable 2018-03-23 12:56:52 -07:00
sync_point_impl.cc Refactor sync_point to make implementation either customizable or replaceable 2018-03-23 12:56:52 -07:00
sync_point_impl.h Refactor sync_point to make implementation either customizable or replaceable 2018-03-23 12:56:52 -07:00
testharness.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
testharness.h Change RocksDB License 2017-07-15 16:11:23 -07:00
testutil.cc comment unused parameters to turn on -Wunused-parameter flag 2018-04-12 17:59:16 -07:00
testutil.h Exclude seq from index keys 2018-05-25 18:42:43 -07:00
thread_list_test.cc Use nullptr instead of NULL / 0 more consistently. 2018-03-07 12:42:12 -08:00
thread_local.cc util: Fix coverity issues 2017-11-03 14:42:08 -07:00
thread_local.h Fix deadlock in ColumnFamilyData::InstallSuperVersion() 2018-02-16 08:13:34 -08:00
thread_local_test.cc Comment out unused variables 2018-03-05 13:13:41 -08:00
thread_operation.h Change RocksDB License 2017-07-15 16:11:23 -07:00
threadpool_imp.cc Support lowering CPU priority of background threads 2018-04-24 08:41:51 -07:00
threadpool_imp.h Support lowering CPU priority of background threads 2018-04-24 08:41:51 -07:00
timer_queue.h Change RocksDB License 2017-07-15 16:11:23 -07:00
timer_queue_test.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
transaction_test_util.cc WritePrepared Txn: enable rollback in stress test 2018-05-02 18:13:05 -07:00
transaction_test_util.h WritePrepared Txn: stress test 2017-12-06 09:42:28 -08:00
xxhash.cc fixed typo 2017-06-05 11:27:34 -07:00
xxhash.h Prevent xxhash symbols from polluting global namespace 2015-03-12 12:07:10 -07:00