title: combining data from different sources in apache spark
body: <p>I am exploring apache spark for a project where I want to get data from different sources - database tables (postgres and BigQuery), and text. The data will be processed and fed into another table for analytics. My choice of the programming language is Java, but I am exploring Python too.Can someone please let me know if I can read the directly into spark for processing? Do I need some kind of connector between the database tables and the Spark cluster. </p>
  
  <p>Thanks in advance. </p>