title: Hbase - get column names for row by column name prefix
body: <p>I have a Hbase Table with the following description. </p>
  
  <p>For a row key, my column would be of the form a_1, a_2,a_3,b_1,c_1,C_2 and so on, a compound key format.</p>
  
  <p>Suppose one of my row is of the form </p>
  
  <pre><code>row key - row1
  column family - c1
  columns - a_1, a_2,a_3,b_1,b_2,c_1,C_2,d_9,d_99
  </code></pre>
  
  <p>Can I, by any operation retrieve a,b,c,d as the columns corresponding to <code>row1</code>, I am not bothered about whatever be the suffixes for a,b,c... </p>
  
  <p>I can get all column names for a given row, add them to set by splitting the row keys by their first part and emit the set. I am worried, if there would be a better way of doing it by filters or some other hbase way of getting it done, please comment...</p>