storagezhang c706324208 Add default in switch (#8065)
Summary:
switch may not cover all branch in `db/c.cc`:

```c++
void rocksdb_options_set_access_hint_on_compaction_start(
    rocksdb_options_t* opt, int v) {
  switch(v) {
    case 0:
      opt->rep.access_hint_on_compaction_start =
          ROCKSDB_NAMESPACE::Options::NONE;
      break;
    case 1:
      opt->rep.access_hint_on_compaction_start =
          ROCKSDB_NAMESPACE::Options::NORMAL;
      break;
    case 2:
      opt->rep.access_hint_on_compaction_start =
          ROCKSDB_NAMESPACE::Options::SEQUENTIAL;
      break;
    case 3:
      opt->rep.access_hint_on_compaction_start =
          ROCKSDB_NAMESPACE::Options::WILLNEED;
      break;
  }
}
```

Pull Request resolved: https://github.com/facebook/rocksdb/pull/8065

Reviewed By: riversand963

Differential Revision: D27102892

Pulled By: zhichao-cao

fbshipit-source-id: ad1d20d192712878e61597311ba75b55df0066d7
2021-03-19 11:57:52 -07:00
..
2021-03-09 20:44:23 -08:00
2021-03-19 11:57:52 -07:00
2021-03-09 02:21:25 -08:00
2020-06-15 10:47:02 -07:00
2021-03-18 09:47:31 -07:00
2021-03-09 20:53:33 -08:00
2020-12-23 16:55:53 -08:00
2020-12-09 16:02:12 -08:00