-- Migration 001: convert the two mission-fill tables to InnoDB.
--
-- Why: the atomic enqueue (see includes/queue.php) wraps the capacity-check +
-- seat-take in a transaction so the two writes commit or roll back as a unit.
-- MyISAM silently ignores transactions, so these must be InnoDB. The rest of
-- the schema is left as-is.
--
-- Safe and reversible; run once against the pqs database:
--     mysql -u pqs -ppqs pqs < dev/migrations/001-innodb.sql

ALTER TABLE pqs_mission ENGINE=InnoDB;
ALTER TABLE pqs_queue   ENGINE=InnoDB;