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

It is very similar to how you would code in any programming language, for instance :-

import org.apache.hadoop.hbase.filter.CompareFilter
import org.apache.hadoop.hbase.filter.SingleColumnValueFilter
import org.apache.hadoop.hbase.util.Bytes
scan 'tableName', {COLUMNS=>['CF:qualifier1', 'CF:qualifier2'], LIMIT=>10,
FILTER=>SingleColumnValueFilter.new(Bytes.toBytes('CF'),
Bytes.toBytes('qualifier1'), CompareFilter::CompareOp.valueOf('EQUAL'),
Bytes.toBytes('value'))}

You obviously have to change parameters depending on the fiter you use.