addSql('ALTER TABLE entity ADD COLUMN j_card CLOB NOT NULL'); } public function down(Schema $schema): void { // this down() migration is auto-generated, please modify it to your needs $this->addSql('CREATE TEMPORARY TABLE __temp__entity AS SELECT handle FROM entity'); $this->addSql('DROP TABLE entity'); $this->addSql('CREATE TABLE entity (handle VARCHAR(255) NOT NULL, PRIMARY KEY(handle))'); $this->addSql('INSERT INTO entity (handle) SELECT handle FROM __temp__entity'); $this->addSql('DROP TABLE __temp__entity'); } }