Sub-Query with NOT EXISTS clause throws an error in MetaMatrix

Issue

• We are getting an error in running simple sub-query as shown below.

  SELECT a.* 
  FROM ERStudio_Repository_View.DMREPO4.REPO_USER AS a
  WHERE not exists (select 'x' 
                                   from Public_Views.PEOPLE AS b
                                   where a.unix_nm = b.user_id)
  
  
  
  SQL1:Exception running query: writing aborted; java.io.NotSerializableException: com.sun.jndi.ldap.LdapCtx