sequelize-dm/lib/dialects/db2/index.js

Sequelize is a promise-based Node.js ORM tool for Postgres, MySQL, MariaDB, SQLite, Microsoft SQL Server, Amazon Redshift and Snowflake’s Data Cloud. It features solid transaction support, relations, eager and lazy loading, read replication and more.

'use strict';

const _ = require('lodash');
const { AbstractDialect } = require('../abstract');
const ConnectionManager = require('./connection-manager');
const Query = require('./query');
const QueryGenerator = require('./query-generator');
const DataTypes = require('../../data-types').db2;
const { Db2QueryInterface } = require('./query-interface');

class Db2Dialect extends AbstractDialect {
  static supports = _.merge(_.cloneDeep(AbstractDialect.supports), {
    migrations: false,
    schemas: true,
    finalTable: true,
    autoIncrement: {
      defaultValue: false,
    },
    index: {
      collate: false,
      using: false,
      where: true,
    },
    NUMERIC: true,
    tmpTableTrigger: true,
  });

  constructor(sequelize) {
    super();
    this.sequelize = sequelize;
    this.connectionManager = new ConnectionManager(this, sequelize);
    this.queryGenerator = new QueryGenerator({
      _dialect: this,
      sequelize,
    });
    this.queryInterface = new Db2QueryInterface(sequelize, this.queryGenerator);
  }
}

Db2Dialect.prototype.defaultVersion = '1.0.0'; // Db2 supported version comes here
Db2Dialect.prototype.Query = Query;
Db2Dialect.prototype.name = 'db2';
Db2Dialect.prototype.TICK_CHAR = '"';
Db2Dialect.prototype.TICK_CHAR_LEFT = '"';
Db2Dialect.prototype.TICK_CHAR_RIGHT = '"';
Db2Dialect.prototype.DataTypes = DataTypes;

module.exports = Db2Dialect;