Migrating 1200 db from Mysql to PostgresOnce Upon a Time there was a company called Base7Booking that by the beginning of 2016 it was supporting around 1200 databases on MySQL 5.5, each corresponding to single client, each of them with a different db user and all of them with the same database structure. The situation of the database at that time was like: Most of the table names were in French Database was not relational at all A signi
