title: How to delete a table in Amazon Redshift only if the table exists
body: <p>I'm trying to implement an ETL process in Amazon Redshift that needs to recreate certain tables automatically, and I need the script to drop those tables only when they are already present in the database. </p>
  
  <p>Is there any table catalog where I can check for the presence of a table? Or a command similar to the <code>DROP TABLE IF EXISTS</code> in PSQL?</p>