> And? Oracle and MySql doesnt have it but can downgrade right out the box. > Quick and easy. No it is not for mysql. http://dev.mysql.com/doc/refman/5.7/en/downgrading.html "In-place Downgrade: Involves shutting down the new MySQL version, replacing the new MySQL binaries or packages with the old ones, and restarting the old MySQL version on the existing data directory. In-place downgrades are supported for downgrades between GA versions within the same release series. For example, in-place downgrades are supported for downgrades from 5.7.10 to 5.7.9. The above is easy and same as PG if you are going from 9.5.2 to 9.5.1. " Now let us take about major downgrade. Downgrading one release level is supported using the logical downgrade method. For example, downgrading from 5.7 to 5.6 is supported. Logical Downgrade: Involves using mysqldump to dump all tables from the new MySQL version, and then loading the dump file into the old MySQL version. Logical downgrades are supported for downgrades between GA versions within the same release series and for downgrades between release levels. For example, logical downgrades are supported for downgrades from 5.7.10 to 5.7.9 and for downgrades from 5.7 to 5.6. Only a fool will consider this as simple. And BTW all products support methods similar to mysqldump. What we are looking at, is an in-place downgrade after a major version upgrade and that looks to be almost non-existent. -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
