小编Ray*_*nta的帖子

我读的关于NoSQL的越多,它就越像听起来像是一个面向列的数据库.

NoSQL(例如CouchDB,Cassandra,MongoDB)和面向列的数据库(例如Vertica,MonetDB)之间有什么区别？

如何使用Sequelize指定只读副本？

我根据他们的文档创建了一个非常基本的测试。

https://github.com/sequelize/sequelize/blob/master/docs/usage.md

var Sequelize = require("sequelize");

var sequelize = new Sequelize('database', 'root', '', {
    dialect: 'mysql',
    port: 3306,
    replication: {
        read: [
            { host: 'host1' }
        ],
        write: { host: 'host2' }
    },
    pool: { // If you want to override the options used for the read pool you can do so here
        maxConnections: 20,
        maxIdleTime: 30000
    }
})


var Test = sequelize.define('grammar_scores', {
    id: {
        type: Sequelize.INTEGER,
        primaryKey: true,
        autoIncrement: true
    },
    user_id: {
        type: Sequelize.INTEGER,
        index: true …