云数据库MongoDB 4.2 重磅发布

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{"moduleinfo":{"subtit":"2019.11.26 阿里云-MongoDB战略合作发布会，诚邀您一起见证 MongoDB4.2 从 NoSQL 到 NewSQL的全面升级。","items_count":[{"count_phone":2,"count":2}],"bg":"https://img.alicdn.com/tfs/TB1RaYnn.H1gK0jSZSyXXXtlpXa-1920-366.png","link":"https://common-buy.aliyun.com/?commodityCode=badds&request=%7B%22dds_region%22:%22cn-hangzhou%22,%22dds_iz%22:%22cn-hangzhou-d%22,%22dds_dbtype%22:%22MongoDB%22,%22dds_dbversion%22:%224.2%22,%22dds_engine%22:%22WiredTiger%22,%22replication_factor%22:%223%22,%22networktype%22:%22VPC%22,%22vpcId%22:%22vpc-bp1vclt2zi1gai9iiaf1i%22,%22vswitchId%22:%22%22,%22dds_class%22:%22dds.mongo.large%22,%22dds_storage%22:10,%22dds_password%22:%22now%22,%22ord_time%22:%22%5B1,%5C%22Year%5C%22,true%5D%22,%22order_num%22:1%7D","btn2":"观看发布会","link2":"https://developer.aliyun.com/live/1705","title":"阿里云 MongoDB 4.2 重磅发布","btn":"立即购买"},"items":[{"text":"<a href=\" https://developer.aliyun.com/article/724599?spm \" target=\"_blank\"><font color=\"#e65f00\">阿里云与MongoDB公司建立全新合作伙伴关系</a>"},{"text":"<a href=\" https://developer.aliyun.com/article/724599?spm \" target=\"_blank\"><font color=\"#e65f00\">阿里云成为首家提供 MongoDB 4.2托管数据库服务的云厂商</a>"}],"countinfo":{"items":{"length_pc":0,"length":0}},"$tmsId":"tce/2242711"}

阿里云 MongoDB 4.2 重磅发布

2019.11.26 阿里云-MongoDB战略合作发布会，诚邀您一起见证 MongoDB4.2 从 NoSQL 到 NewSQL的全面升级。

立即购买观看发布会

阿里云与MongoDB公司建立全新合作伙伴关系

阿里云成为首家提供 MongoDB 4.2托管数据库服务的云厂商

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MongoDB 4.2 新特性

分布式事务（Distributed Transaction）

采用二段提交方式，保证分片集群事务的 ACID 特性。极大地拓展了MongoDB 的业务场景，实现从 NoSQL 到 NewSQL 的飞跃。

可重试读（Retryable Read）

增加可重试读功能，提供弱网环境下自动重试能力，降低业务端逻辑复杂性，保证用户业务连续性。

通配符索引（Wildcard Index）

对于非确定字段，MongoDB 支持创建通配符索引，覆盖一个文档下的多个特征字段，所以管理更方便，使用更灵活。

字段级加密（Field Level Encryption）

驱动层面支持字段级加密，可以针对特定敏感信息，比如账号，密码，价格，手机号等信息单独加密，避免全库加密，提升业务灵活性和安全性。

物化视图（On-Demand Materialized View ）

通过最新的物化视图可以缓存计算结果，避免每次重复计算，提升运行效率，减少逻辑复杂度。

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