title: HBase Filtering Rows
body: <p>I have an HBase table in which when new data is added, one column family is not included(data is processed and persisted later).</p>
  
  <p>A batch job need to filter in these news Rows which don't have values for this particular column, fetch them , calculate and update the column which was not earlier there.</p>
  
  <p>Initially I expected hbase to provide a filtering mechanism to get all the rows which doesn't have value defined to a specific CF, but it seems hbase doesn't work that way.</p>
  
  <pre><code>KEY | CF1 | CF2 | CF3|
  A     11     11    11
  B     22     22          &lt;-- I need to get these rows.
  C     33     33          &lt;-- I need to get these rows.
  D     44     44    44
  </code></pre>
  
  <p>What will be the optimal approach to solve this problem?</p>