title: Apache Spark Federated Views / Queries
body: <p>Does Spark (Specifically Spark 3.X) support the idea of federated queries via persisted views or tables?  We do a lot of the &quot;JDBC to other sources&quot; stuff in our ETL, so I am familiar with how to make a JDBC connection and even create a temporary view of a JDBC connection, if needed.  I am more interested in persisting that table or view within the metastore, so I can query it as a live connection, for as long as I want.  Something similar to how Presto or Denodo does it.</p>
  <p>We do most of our stuff in Azure Databricks also, if anyone knows if they offer something that vanilla Spark would not.</p>
  <p>Anyone know if that is possible? I haven't had much luck finding anything yet.</p>
  <p>Thanks!</p>