title: Delta load with Talend
body: <p>I am new in using Talend. 
  I want to use delta load in my ETL. 
  I am extracting from Mysql datasource and loading into Postgresql database.
  Mysql datasource has created_at and updated_at timestamps which I would like to use to extract new or update data. 
  I have already implemented this in Sql Server with SSIS before.
  I am not sure how to implement with Talend. 
  Has anybody implemented delta load with timestamps using Talend? 
  Thanks in advance. </p>