Skimmed the javadoc and also the implementation, it only performs filtering on the row key, then why not just implement filterRowKey?
It is added in HBASE-6509, and I checked the repo at that time https://github.com/apache/hbase/tree/5876b5b662e83149bd1d726cdb7a1ac0310cc25c We already have the filterRowKey method in Filter. Does anyone in the community still remember something? Anyway, I will try to change to use filterRowKey to see if it will break any UTs. Thanks.
