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Abhishek Madan 6bee36a786 Modify FragmentedRangeTombstoneList member layout (#4632) 
Summary:
Rather than storing a `vector<RangeTombstone>`, we now store a
`vector<RangeTombstoneStack>` and a `vector<SequenceNumber>`. A
`RangeTombstoneStack` contains the start and end keys of a range tombstone
fragment, and indices into the seqnum vector to indicate which sequence
numbers the fragment is located at. The diagram below illustrates an
example:

```
tombstones_:     [a, b) [c, e) [h, k)
                   | \   /  \   /  |
                   |  \ /    \ /   |
                   v   v      v    v
tombstone_seqs_: [ 5 3 10 7 2 8 6  ]
```

This format allows binary searching the tombstone list to use less key
comparisons, which helps in cases where there are many overlapping
tombstones. Also, this format makes it easier to add DBIter-like
semantics to `FragmentedRangeTombstoneIterator` in the future.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/4632

Differential Revision: D13053103

Pulled By: abhimadan

fbshipit-source-id: e8220cc712fcf5be4d602913bb23ace8ea5f8ef0
2018-11-14 17:52:17 -08:00
..
adaptive_table_factory.cc Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
adaptive_table_factory.h Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
block_based_filter_block_test.cc Remove two variables from BlockContents class and don't use class Block for compressed block (#4650) 2018-11-13 17:02:55 -08:00
block_based_filter_block.cc PrefixMayMatch: remove unnecessary check for prefix_extractor_ (#4067) 2018-06-27 20:42:43 -07:00
block_based_filter_block.h Move prefix_extractor to MutableCFOptions 2018-05-21 14:43:11 -07:00
block_based_table_builder.cc Remove two variables from BlockContents class and don't use class Block for compressed block (#4650) 2018-11-13 17:02:55 -08:00
block_based_table_builder.h Revert "Digest ZSTD compression dictionary once per SST file (#4251)" (#4347) 2018-09-06 09:58:34 -07:00
block_based_table_factory.cc Move MemoryAllocator option from Cache to BlockBasedTableOptions (#4676) 2018-11-13 13:48:38 -08:00
block_based_table_factory.h Move MemoryAllocator option from Cache to BlockBasedTableOptions (#4676) 2018-11-13 13:48:38 -08:00
block_based_table_reader.cc Modify FragmentedRangeTombstoneList member layout (#4632) 2018-11-14 17:52:17 -08:00
block_based_table_reader.h Remove two variables from BlockContents class and don't use class Block for compressed block (#4650) 2018-11-13 17:02:55 -08:00
block_builder.cc DataBlockHashIndex: Remove the division from EstimateSize() (#4293) 2018-08-20 23:13:50 -07:00
block_builder.h Add path to WritableFileWriter. (#4039) 2018-08-23 10:12:58 -07:00
block_fetcher.cc Remove two variables from BlockContents class and don't use class Block for compressed block (#4650) 2018-11-13 17:02:55 -08:00
block_fetcher.h Remove two variables from BlockContents class and don't use class Block for compressed block (#4650) 2018-11-13 17:02:55 -08:00
block_prefix_index.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
block_prefix_index.h Change RocksDB License 2017-07-15 16:11:23 -07:00
block_test.cc Remove two variables from BlockContents class and don't use class Block for compressed block (#4650) 2018-11-13 17:02:55 -08:00
block.cc Remove two variables from BlockContents class and don't use class Block for compressed block (#4650) 2018-11-13 17:02:55 -08:00
block.h Remove two variables from BlockContents class and don't use class Block for compressed block (#4650) 2018-11-13 17:02:55 -08:00
bloom_block.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
bloom_block.h Change RocksDB License 2017-07-15 16:11:23 -07:00
cleanable_test.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
cuckoo_table_builder_test.cc Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
cuckoo_table_builder.cc Promote rocksdb.{deleted.keys,merge.operands} to main table properties (#4594) 2018-10-30 15:34:27 -07:00
cuckoo_table_builder.h Change RocksDB License 2017-07-15 16:11:23 -07:00
cuckoo_table_factory.cc Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
cuckoo_table_factory.h Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
cuckoo_table_reader_test.cc Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
cuckoo_table_reader.cc Support pragma once in all header files and cleanup some warnings (#4339) 2018-09-05 18:13:31 -07:00
cuckoo_table_reader.h Index value delta encoding (#3983) 2018-08-09 16:58:40 -07:00
data_block_footer.cc Add db_bench options of data block hash index (#4281) 2018-08-16 18:42:46 -07:00
data_block_footer.h Add db_bench options of data block hash index (#4281) 2018-08-16 18:42:46 -07:00
data_block_hash_index_test.cc Remove two variables from BlockContents class and don't use class Block for compressed block (#4650) 2018-11-13 17:02:55 -08:00
data_block_hash_index.cc DataBlockHashIndex: Remove the division from EstimateSize() (#4293) 2018-08-20 23:13:50 -07:00
data_block_hash_index.h DataBlockHashIndex: Remove the division from EstimateSize() (#4293) 2018-08-20 23:13:50 -07:00
filter_block.h use user_key and iterate_upper_bound to determine compatibility of bloom filters (#3899) 2018-06-26 15:57:26 -07:00
flush_block_policy.cc Align SST file data blocks to avoid spanning multiple pages 2018-03-26 20:26:10 -07:00
format.cc Remove two variables from BlockContents class and don't use class Block for compressed block (#4650) 2018-11-13 17:02:55 -08:00
format.h Remove two variables from BlockContents class and don't use class Block for compressed block (#4650) 2018-11-13 17:02:55 -08:00
full_filter_bits_builder.h Skip duplicate bloom keys when whole_key and prefix are mixed 2018-04-24 10:58:16 -07:00
full_filter_block_test.cc Move prefix_extractor to MutableCFOptions 2018-05-21 14:43:11 -07:00
full_filter_block.cc Charging block cache more accurately (#4073) 2018-06-29 08:57:20 -07:00
full_filter_block.h Charging block cache more accurately (#4073) 2018-06-29 08:57:20 -07:00
get_context.cc Use only "local" range tombstones during Get (#4449) 2018-10-24 12:31:12 -07:00
get_context.h Use only "local" range tombstones during Get (#4449) 2018-10-24 12:31:12 -07:00
index_builder.cc Add path to WritableFileWriter. (#4039) 2018-08-23 10:12:58 -07:00
index_builder.h Add path to WritableFileWriter. (#4039) 2018-08-23 10:12:58 -07:00
internal_iterator.h Index value delta encoding (#3983) 2018-08-09 16:58:40 -07:00
iter_heap.h Make InternalKeyComparator final and directly use it in merging iterator 2017-09-11 12:04:21 -07:00
iterator_wrapper.h Index value delta encoding (#3983) 2018-08-09 16:58:40 -07:00
iterator.cc fix typo in error message, twice (#4457) 2018-10-09 17:07:27 -07:00
merger_test.cc Make InternalKeyComparator final and directly use it in merging iterator 2017-09-11 12:04:21 -07:00
merging_iterator.cc Index value delta encoding (#3983) 2018-08-09 16:58:40 -07:00
merging_iterator.h Index value delta encoding (#3983) 2018-08-09 16:58:40 -07:00
meta_blocks.cc Remove two variables from BlockContents class and don't use class Block for compressed block (#4650) 2018-11-13 17:02:55 -08:00
meta_blocks.h Index value delta encoding (#3983) 2018-08-09 16:58:40 -07:00
mock_table.cc Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
mock_table.h Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
partitioned_filter_block_test.cc Remove two variables from BlockContents class and don't use class Block for compressed block (#4650) 2018-11-13 17:02:55 -08:00
partitioned_filter_block.cc Fix bug in partition filters with format_version=4 (#4381) 2018-09-17 17:28:15 -07:00
partitioned_filter_block.h Fix bug in partition filters with format_version=4 (#4381) 2018-09-17 17:28:15 -07:00
persistent_cache_helper.cc Remove two variables from BlockContents class and don't use class Block for compressed block (#4650) 2018-11-13 17:02:55 -08:00
persistent_cache_helper.h Change RocksDB License 2017-07-15 16:11:23 -07:00
persistent_cache_options.h Change RocksDB License 2017-07-15 16:11:23 -07:00
plain_table_builder.cc Promote rocksdb.{deleted.keys,merge.operands} to main table properties (#4594) 2018-10-30 15:34:27 -07:00
plain_table_builder.h Move prefix_extractor to MutableCFOptions 2018-05-21 14:43:11 -07:00
plain_table_factory.cc Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
plain_table_factory.h Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
plain_table_index.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
plain_table_index.h Move prefix_extractor to MutableCFOptions 2018-05-21 14:43:11 -07:00
plain_table_key_coding.cc Comment out unused variables 2018-03-05 13:13:41 -08:00
plain_table_key_coding.h Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
plain_table_reader.cc Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
plain_table_reader.h Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
scoped_arena_iterator.h Change RocksDB License 2017-07-15 16:11:23 -07:00
sst_file_writer_collectors.h Comment out unused variables 2018-03-05 13:13:41 -08:00
sst_file_writer.cc Add listener to sample file io (#3933) 2018-10-12 18:36:11 -07:00
table_builder.h Remove random writes from SST file ingestion (#4172) 2018-07-27 16:12:23 -07:00
table_properties_internal.h Index value delta encoding (#3983) 2018-08-09 16:58:40 -07:00
table_properties.cc Promote rocksdb.{deleted.keys,merge.operands} to main table properties (#4594) 2018-10-30 15:34:27 -07:00
table_reader_bench.cc Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
table_reader.h Index value delta encoding (#3983) 2018-08-09 16:58:40 -07:00
table_test.cc Remove two variables from BlockContents class and don't use class Block for compressed block (#4650) 2018-11-13 17:02:55 -08:00
two_level_iterator.cc Index value delta encoding (#3983) 2018-08-09 16:58:40 -07:00
two_level_iterator.h Index value delta encoding (#3983) 2018-08-09 16:58:40 -07:00