doing a ValueFilter or a ColumnFilter on hbase shell

Question

Could anyone please tell me how to do a qualifier filter or ValueFilter from the hbase shell command line?

Answer 1

You can instantiate any filter the same way you would do in Java (with JRuby syntax), and supply the filter as:

filter = ...
scan 'mytable', FILTER => filter

However, instantiating the filter in the shell directly can be cumbersome, so an easier way is to supply filter as a string using Filter Language. For example, to include all the columns with value equal to 'myvalue' in a scan you would use:

scan 'mytable', FILTER => "ValueFilter(=, 'binary:myvalue')"

You can check this document as a 'Filter Language' reference.

(edit for closing double quote)