Module rocks::filter_policy

A database can be configured with a custom FilterPolicy object. This object is responsible for creating a small filter from a set of keys. These filters are stored in rocksdb and are consulted automatically by rocksdb to decide whether or not to read some information from disk. In many cases, a filter can cut down the number of disk seeks form a handful to a single disk seek per DB::Get() call.

Most people will want to use the builtin bloom filter support (see NewBloomFilterPolicy() below).

Structs

FilterPolicy