Hi Lars, Thank You for quick reply, but I'm not talking about row key, but about column qualifier (column key).
Best Regards. On Sun, Mar 7, 2010 at 5:03 PM, Lars Francke <lars.fran...@gmail.com> wrote: > Hi, > > > Is it possible to use regex as column qualifier in the get operation ? > > no, that's not possible. For a "get"[1] operation you need to specify > the exact row key you are looking for and there will be at most one > result. > > You can use a "scan"[2] (which may return multiple results) in > combination with a RowFilter[3] and a RegexStringComparator[4]. See > the tests[5] for a few examples. > > Cheers, > Lars > > [1] < > http://hadoop.apache.org/hbase/docs/r0.20.3/api/org/apache/hadoop/hbase/client/HTable.html#get(org.apache.hadoop.hbase.client.Get) > > > [2] < > http://hadoop.apache.org/hbase/docs/r0.20.3/api/org/apache/hadoop/hbase/client/HTable.html#getScanner(org.apache.hadoop.hbase.client.Scan) > > > [3] < > http://hadoop.apache.org/hbase/docs/r0.20.3/api/org/apache/hadoop/hbase/filter/RowFilter.html > > > [4] < > http://hadoop.apache.org/hbase/docs/r0.20.3/api/org/apache/hadoop/hbase/filter/RegexStringComparator.html > > > [5] < > http://svn.apache.org/viewvc/hadoop/hbase/tags/0.20.3/src/test/org/apache/hadoop/hbase/filter/TestFilter.java?revision=902976&view=markup > > >
