title: kafka connect transformations
body: <p>I want to stream the data from postgreSQL to HDFS but all of my tables have multiple timestamp columns. I had tried simple jdbc connect and HDFS sink offered by confluent to read data from postgres and write it to HDFS but all of my date columns are converted into BigInt instead of date format. I don't know which format this big int is in but its not in Unix timestamp.Is there any why to find out in which format that is?
  I am also thinking to transform the date columns to UNIX timestamp in my jdbc connect and then transform them to date in my sink by using <a href="https://docs.confluent.io/current/connect/transforms/timestampconverter.html#timestampconverter" rel="nofollow noreferrer">TimeStampConverter</a>. But i don't know how to implement it in my current procedure.
  The issue is reported <a href="https://github.com/confluentinc/kafka-connect-hdfs/issues/49" rel="nofollow noreferrer">here</a>.</p>