n8n/packages/cli/src/databases/migrations/postgresdb/1669823906995-AddTriggerCountColumn.ts

import { MigrationInterface, QueryRunner } from 'typeorm';
import { getTablePrefix, logMigrationEnd, logMigrationStart } from '@db/utils/migrationHelpers';

export class AddTriggerCountColumn1669823906995 implements MigrationInterface {
	name = 'AddTriggerCountColumn1669823906995';

	async up(queryRunner: QueryRunner): Promise<void> {
		logMigrationStart(this.name);

		const tablePrefix = getTablePrefix();

		await queryRunner.query(
			`ALTER TABLE ${tablePrefix}workflow_entity ADD COLUMN "triggerCount" integer NOT NULL DEFAULT 0`,
		);
		// Table will be populated by n8n startup - see ActiveWorkflowRunner.ts

		logMigrationEnd(this.name);
	}

	async down(queryRunner: QueryRunner): Promise<void> {
		const tablePrefix = getTablePrefix();

		await queryRunner.query(`ALTER TABLE ${tablePrefix}workflow_entity DROP COLUMN "triggerCount"`);
	}
}