Postgre SCRAM Authentication not possible because .jre driver

Which version and edition of Flyway are you using?

6.0.8 Community

If this is not the latest version, can you reproduce the issue with the latest one as well?

(Many bugs are fixed in newer releases and upgrading will often resolve the issue)

Yes, with the latest as well

Which client are you using? (Command-line, Java API, Maven plugin, Gradle plugin)

Command-line (via the docker image, but that is not relevant)

Which database are you using (type & version)?

Postgresql 12.0

Which operating system are you using?

Ubuntu 18.04

What did you do?

(Please include the content causing the issue, any relevant configuration settings, the SQL statement that failed (if relevant) and the command you ran.)

Cofigured postgres server with

postgresql.conf:

password_encryption = 'scram-sha-256'

What did you expect to see?

A normal execution of migrations like

Database: jdbc:postgresql://host/db (PostgreSQL 12.0)
Successfully validated 11 migrations (execution time 00:00.022s)

What did you see instead?

Flyway Community Edition 6.0.8 by Redgate
ERROR: 
Unable to obtain connection from database (jdbc:postgresql://host/db) for user 'my-user': SCRAM authentication is not supported by this driver. You need JDK >= 8 and pgjdbc >= 42.2.0 (not ".jre" versions)
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
SQL State  : 08004
Error Code : 0
Message    : SCRAM authentication is not supported by this driver. You need JDK >= 8 and pgjdbc >= 42.2.0 (not ".jre" versions)

The reason for the bug is because the postgres driver in the flyway package is the “jre6” (postgresql-42.2.8.jre6.jar) version of the driver which does not support SCRAM authentication.

It works when I change the postgresql-42.2.8.jre6.jar to the “normal” version of the driver: postgresql-42.2.8.jar

[DoodleBobBuffPants]

This feature is now available in the V7 beta which you can read more about here.

[juliahayward]

You should be able to drop the newer Postgres driver in manually (into the drivers folder in Flyway) and it will just work; alternatively Flyway 7 will ship with the latest driver this week.