rocksdb/db/db_impl
anand76 6c7b1a0cc7 Batched MultiGet API for multiple column families (#5816)
Summary:
Add a new API that allows a user to call MultiGet specifying multiple keys belonging to different column families. This is mainly useful for users who want to do a consistent read of keys across column families, with the added performance benefits of batching and returning values using PinnableSlice.

As part of this change, the code in the original multi-column family MultiGet for acquiring the super versions has been refactored into a separate function that can be used by both, the batching and the non-batching versions of MultiGet.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5816

Test Plan:
make check
make asan_check
asan_crash_test

Differential Revision: D18408676

Pulled By: anand1976

fbshipit-source-id: 933e7bec91dd70e7b633be4ff623a1116cc28c8d
2019-11-12 13:52:55 -08:00
..
db_impl_compaction_flush.cc Use aggregate initialization for FlushJobInfo/CompactionJobInfo (#5997) 2019-11-01 11:46:19 -07:00
db_impl_debug.cc Add command "list_file_range_deletes" in ldb (#5615) 2019-08-15 17:01:03 -07:00
db_impl_experimental.cc BlobDB GC: add SST <-> oldest blob file referenced mapping (#5903) 2019-10-14 15:21:01 -07:00
db_impl_files.cc Move WAL-closing loop out of original loop (#5804) 2019-09-17 17:17:19 -07:00
db_impl_open.cc Update column families' log number altogether after flushing during recovery (#5856) 2019-10-24 18:29:30 -07:00
db_impl_readonly.cc Apply formatter on recent 45 commits. (#5827) 2019-09-19 12:34:17 -07:00
db_impl_readonly.h Use delete to disable automatic generated methods. (#5009) 2019-09-11 18:09:00 -07:00
db_impl_secondary.cc Apply formatter to recent 200+ commits. (#5830) 2019-09-20 12:04:26 -07:00
db_impl_secondary.h Override check consistency for DBImplSecondary (#5469) 2019-06-17 15:39:55 -07:00
db_impl_write.cc Move pipeline write waiting logic into WaitForPendingWrites() (#5716) 2019-10-29 18:16:36 -07:00
db_impl.cc Batched MultiGet API for multiple column families (#5816) 2019-11-12 13:52:55 -08:00
db_impl.h Batched MultiGet API for multiple column families (#5816) 2019-11-12 13:52:55 -08:00
db_secondary_test.cc Apply formatter to recent 200+ commits. (#5830) 2019-09-20 12:04:26 -07:00