title: LIQUIBASE : set number of decimals to a column data type
body: <p>I want to change the type of a column.<br>
  I want a double with 2 decimals max.  </p>
  
  <p>I did : </p>
  
  <pre><code>&lt;changeSet author="me" id="20170407151802-1"&gt;
    &lt;modifyDataType
      columnName="montant_ht"
      newDataType="DOUBLE(10,8)"
      tableName="activite"/&gt;
  &lt;/changeSet&gt;
  </code></pre>
  
  <p>It doesn't work.<br>
  Is there a way to set the precision?<br>
  Thanks.</p>