zeppelin/src/migrations/1556908589679-CreateUsernameHistoryTable.ts

import { MigrationInterface, QueryRunner, Table } from "typeorm";

export class CreateUsernameHistoryTable1556908589679 implements MigrationInterface {
  public async up(queryRunner: QueryRunner): Promise<any> {
    await queryRunner.createTable(
      new Table({
        name: "username_history",
        columns: [
          {
            name: "id",
            type: "int",
            unsigned: true,
            isGenerated: true,
            generationStrategy: "increment",
            isPrimary: true,
          },
          {
            name: "user_id",
            type: "bigint",
            unsigned: true,
          },
          {
            name: "username",
            type: "varchar",
            length: "160",
            isNullable: true,
          },
          {
            name: "timestamp",
            type: "datetime",
            default: "CURRENT_TIMESTAMP",
          },
        ],
        indices: [
          {
            columnNames: ["user_id"],
          },
        ],
      }),
    );
  }

  public async down(queryRunner: QueryRunner): Promise<any> {
    await queryRunner.dropTable("username_history", true);
  }
}