Andrew Kryczka fd43ee09da Range deletion microoptimizations
Summary:
- Made RangeDelAggregator's InternalKeyComparator member a reference-to-const so we don't need to copy-construct it. Also added InternalKeyComparator to ImmutableCFOptions so we don't need to construct one for each DBIter.
- Made MemTable::NewRangeTombstoneIterator and the table readers' NewRangeTombstoneIterator() functions return nullptr instead of NewEmptyInternalIterator to avoid the allocation. Updated callers accordingly.
Closes https://github.com/facebook/rocksdb/pull/1548

Differential Revision: D4208169

Pulled By: ajkr

fbshipit-source-id: 2fd65cf
2016-11-21 12:24:13 -08:00
..
2016-11-21 12:24:13 -08:00
2016-11-19 14:24:12 -08:00
2016-11-03 18:54:20 -07:00
2016-09-13 21:11:59 -07:00
2016-11-19 14:24:12 -08:00
2016-11-14 22:54:17 -08:00
2016-11-21 12:24:13 -08:00
2016-11-04 12:09:22 -07:00
2016-11-10 11:09:22 -08:00
2016-09-27 18:20:57 -07:00
2016-11-21 12:24:13 -08:00
2016-07-08 17:50:51 -07:00
2016-10-13 08:48:40 -07:00
2016-07-08 17:50:51 -07:00
2016-11-03 18:54:20 -07:00
2016-11-21 12:24:13 -08:00
2016-11-21 12:24:13 -08:00
2016-11-19 14:24:12 -08:00
2016-09-27 18:20:57 -07:00
2016-09-27 18:20:57 -07:00
2016-07-13 15:36:22 -07:00
2016-06-25 08:29:40 +01:00