n8n-enterprise-unlocked/packages/cli/src/databases/migrations/postgresdb/1673268682475-DeleteExecutionsWithWorkflows.ts

import type { MigrationContext, ReversibleMigration } from '@db/types';

export class DeleteExecutionsWithWorkflows1673268682475 implements ReversibleMigration {
	async up({ queryRunner, tablePrefix }: MigrationContext) {
		await queryRunner.query(
			`ALTER TABLE ${tablePrefix}execution_entity
			 ALTER COLUMN "workflowId" TYPE INTEGER USING "workflowId"::integer`,
		);

		const workflowIds = (await queryRunner.query(`
			SELECT id FROM ${tablePrefix}workflow_entity
		`)) as Array<{ id: number }>;

		await queryRunner.query(
			`DELETE FROM ${tablePrefix}execution_entity
			 WHERE "workflowId" IS NOT NULL
			 ${
					workflowIds.length
						? `AND "workflowId" NOT IN (${workflowIds.map(({ id }) => id).join()})`
						: ''
				}`,
		);

		await queryRunner.query(
			`ALTER TABLE ${tablePrefix}execution_entity
			 ADD CONSTRAINT "FK_${tablePrefix}execution_entity_workflowId"
			 FOREIGN KEY ("workflowId") REFERENCES ${tablePrefix}workflow_entity ("id")
			 ON DELETE CASCADE`,
		);
	}

	async down({ queryRunner, tablePrefix }: MigrationContext) {
		await queryRunner.query(
			`ALTER TABLE ${tablePrefix}execution_entity
			 DROP CONSTRAINT "FK_${tablePrefix}execution_entity_workflowId"`,
		);

		await queryRunner.query(
			`ALTER TABLE ${tablePrefix}execution_entity
			 ALTER COLUMN "workflowId" TYPE TEXT`,
		);
	}
}