Changelog

Unreleased

0.6.1

2020-08-12

Improvements

#115 Add a BadgerDB backend with build tag badgerdb (@mvdan)

0.6.0

2020-06-24

Breaking Changes

#99 Keys can no longer be nil or empty, and values can no longer be nil (@erikgrinaker)
#98 NewDB now returns an error instead of panicing (@erikgrinaker)
#96 Batch.Set(), Delete(), and Close() may now error (@erikgrinaker)
#97 Iterator.Close() may now error (@erikgrinaker)
#97 Many iterator panics are now exposed via Error() instead (@erikgrinaker)
#96 The SetDeleter interface has been removed (@erikgrinaker)

Bug Fixes

#97 RemoteDB iterators are now correctly primed with the first item when created, without calling Next() (@erikgrinaker)

0.5.1

2020-03-30

Bug Fixes

[boltdb] #81 Use correct import path go.etcd.io/bbolt

0.5.0

2020-03-11

Breaking Changes

#71 Closed or written batches can no longer be reused, all non-Close() calls will panic
[memdb] #74 Iterator() and ReverseIterator() now take out database read locks for the duration of the iteration
[memdb] #56 Removed some exported methods that were mainly meant for internal use: Mutex(), SetNoLock(), SetNoLockSync(), DeleteNoLock(), and DeleteNoLockSync()

Improvements

[memdb] #53 Use a B-tree for storage, which significantly improves range scan performance
[memdb] #56 Use an RWMutex for improved performance with highly concurrent read-heavy workloads

Bug Fixes

[boltdb] #69 Properly handle blank keys in iterators
[cleveldb] #65 Fix handling of empty keys as iterator endpoints

0.4.1

2020-2-26

Breaking Changes

[fsdb] #43 Remove FSDB

Bug Fixes

[boltdb] #45 Bring BoltDB to adhere to the db interfaces

0.4

2020-1-7

BREAKING CHANGES

#30 Interface Breaking, Interfaces return errors instead of panic:
- Changes to function signatures:
  - DB interface:
    - Get([]byte) ([]byte, error)
    - Has(key []byte) (bool, error)
    - Set([]byte, []byte) error
    - SetSync([]byte, []byte) error
    - Delete([]byte) error
    - DeleteSync([]byte) error
    - Iterator(start, end []byte) (Iterator, error)
    - ReverseIterator(start, end []byte) (Iterator, error)
    - Close() error
    - Print() error
  - Batch interface:
    - Write() error
    - WriteSync() error
  - Iterator interface:
    - Error() error

IMPROVEMENTS

[remotedb] #34 Add proto file tests and regenerate remotedb.pb.go

0.3

2019-11-18

Special thanks to external contributors on this release:

BREAKING CHANGES

#26 Rename DBBackendtype to BackendType

0.2

2019-09-19

Special thanks to external contributors on this release: @stumble

Features

#12 Add RocksDB (@stumble)

0.1

2019-07-16

Special thanks to external contributors on this release:

Initial Release

db, random.go, bytes.go and os.go from the tendermint repo.