Anton Kaliaev ec9bff5234
rename WAL#Flush to WAL#FlushAndSync (#3345)
* rename WAL#Flush to WAL#FlushAndSync

- rename auto#Flush to auto#FlushAndSync
- cleanup WAL interface to not leak implementation details!
  * remove Group()
  * add WALReader interface and return it in SearchForEndHeight()
- add interface assertions

Refs #3337

* replace WALReader with io.ReadCloser
2019-02-25 09:11:07 +04:00
..