BUG #17060: ERROR: column "rownum" does not exist

The following bug has been logged on the website:

Bug reference:      17060
Logged by:          dhanabakeeswari v
Email address:      dhanabakeeswari15@gmail.com
PostgreSQL version: 11.12
Operating system:   Red Hat Enterprise Linux Server (7.8 version)
Description:

Migrated the data from the oracle database to the PostgreSQL database.
While accessing the query I am facing "org.postgresql.util.PSQLException:
ERROR: column "rownum" does not exist".
Without query changes how to resolve this.