Node.js 的 ORM 框架，?Sequelize 2.0.0 正式發布！

Sequelize.js 提供對 MySQL，MariaDB，SQLite 和 PostgreSQL 數據庫的簡單訪問，通過映射數據庫條目到對象，或者對象到數據庫條目。簡而言之，就是 ORM（Object-Relational-Mapper）。Sequelize.js 完全是使用 JavaScript 編寫，適用于 Node.js 的環境。

Sequelize 2.0.0 正式發布，此版本現已提供下載（ZIP），相比 Sequelize 2.0.0 RC8 更新內容如下：

• [BUG] 修復 field 支持 increment 和 decrement 相關問題

• [FEATURE/BUG] Raw queries always return all results (including affected rows etc). This means you should change all promise listeners on sequelize.query to use .spread instead of .then, unless you are passing a query type.

• [BUG] Support for composite primary keys in upsert #3065

• [BUG] Support for field in upsert

• [FEATURE] 支持在 MySQL 中設置一個初始自動增長選項 #3076

• [FEATURE] 測試覆蓋 Node.js 0.12 和 io.js 1.x

向后兼容改進：

• The default query type for sequelize.query is now RAW - this means that two arguments (results and metadata) will be returned by default and you should use .spread

• The 4th argument to sequelize.query has been deprecated in favor of options.replacements