addSql('DROP INDEX UNIQ_IDENTIFIER_NAME ON og_live'); $this->addSql('ALTER TABLE og_live DROP name'); } public function down(Schema $schema): void { // this down() migration is auto-generated, please modify it to your needs $this->addSql('ALTER TABLE og_live ADD name VARCHAR(255) NOT NULL'); $this->addSql('CREATE UNIQUE INDEX UNIQ_IDENTIFIER_NAME ON og_live (name)'); } }