How to handle PostgreSQL database errors on JobScheduler start-up

If you receive the error

 SCHEDULER-451 Database check failed, database is not useable. SCHEDULER-452 Database does not correctly store test values:
  !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~\ (written value) 
 \t\r\n !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~\\ (read value)

then the parameter standard_conforming_strings is turned on.

This parameter is turned on by default since PostgreSQL 9.1.

The JobScheduler expected at the time that this parameter is turned off.
We will change this behaviour, see JS-781 - Getting issue details... STATUS

Until that happens, you can change the value of standard_conforming_strings in the postgresql.conf file or only for the JobScheduler user via following SQL:

 ALTER USER [scheduler_user] SET standard_conforming_strings = off;