Development ran MySQL 8.4 while production runs MariaDB, so nothing engine-specific
was ever exercised on the engine it ships on.
DATABASE_URL carries serverVersion=mariadb-* now, which is what makes DBAL pick its
MariaDB platform. This matters most for the test environment: it reads DATABASE_URL
from the committed .env and not from .env.dev.local, so a MySQL version there had the
suite running on MySQL84Platform against a MariaDB server - and schema:validate
reporting every nullable and every json column as drift. With the platform right, a
db_test built from the mapping is in sync.
The post-start hooks create db_test and grant the db user, which ddev does not do on
its own, and sync the schema from the entity mapping. Without them the first test run
after a fresh start fails on the missing database.
The remaining changes in config.yaml are ddev's own regeneration of the commented
reference section.
Co-Authored-By: Claude Opus 5 <[email protected]>
frommeandClaude Opus 5