title: liquibase defaultValue vs defaultValueNumeric
body: <p>Can anyone tell me the difference between specifying a defaultValue="0" vs a defaultValueNumeric="0" in a changeset? It's for a bigint column. </p>
  
  <p><a href="http://www.liquibase.org/manual/add_default_value">http://www.liquibase.org/manual/add_default_value</a> doesn't really go into detail here. </p>