Manuel Ung 88ed1f6ea6 Allow upgrades from nullptr to some merge operator ...

Summary:
Currently, RocksDB does not allow reopening a preexisting DB with no merge operator defined, with a merge operator defined. This means that if a DB ever want to add a merge operator, there's no way to do so currently.

Fix this by adding a new verification type `kByNameAllowFromNull` which will allow old values to be nullptr, and new values to be non-nullptr.
Closes https://github.com/facebook/rocksdb/pull/2958

Differential Revision: D5961131

Pulled By: lth

fbshipit-source-id: 06179bebd0d90db3d43690b5eb7345e2d5bab1eb

2017-10-04 09:57:23 -07:00

..

cf_options.cc

Change RocksDB License

2017-07-15 16:11:23 -07:00

cf_options.h

fix some misspellings

2017-08-16 21:57:20 -07:00

db_options.cc

Make bytes_per_sync and wal_bytes_per_sync mutable

2017-09-27 17:49:45 -07:00

db_options.h

Make bytes_per_sync and wal_bytes_per_sync mutable

2017-09-27 17:49:45 -07:00

options_helper.cc

Allow upgrades from nullptr to some merge operator

2017-10-04 09:57:23 -07:00

options_helper.h

Allow upgrades from nullptr to some merge operator

2017-10-04 09:57:23 -07:00

options_parser.cc

Allow upgrades from nullptr to some merge operator

2017-10-04 09:57:23 -07:00

options_parser.h

Replace dynamic_cast<>

2017-07-28 16:27:16 -07:00

options_sanity_check.cc

Change RocksDB License

2017-07-15 16:11:23 -07:00

options_sanity_check.h

Change RocksDB License

2017-07-15 16:11:23 -07:00

options_settable_test.cc

WritePrepared Txn: Advance seq one per batch

2017-09-18 14:45:08 -07:00

options_test.cc

Allow upgrades from nullptr to some merge operator

2017-10-04 09:57:23 -07:00

options.cc

Use the default copy constructor in Options

2017-09-15 17:15:10 -07:00