title: Upsert from AWS Glue to Amazon Redshift
body: <p>I understand that there is no direct UPSERT query one can perform directly from Glue to Redshift. Is it possible to implement the staging table concept within the glue script itself?</p>
  
  <p>So my expectation is creating the staging table, merging it with destination table and finally deleting it. Can it be achieved within the Glue script?</p>