addSql('CREATE UNIQUE INDEX UNIQ_A29DA1B891BD8781853CD175 ON correction (candidate_id, quiz_id)'); } public function down(Schema $schema): void { // this down() migration is auto-generated, please modify it to your needs $this->addSql('CREATE SCHEMA public'); $this->addSql('DROP INDEX UNIQ_A29DA1B891BD8781853CD175'); } }