Couchbase 4.5 开发者预览版发布

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　　Couchbase 4.5 开发者预览版发布，Couchbase Server （前身是 Membase） 是一个分布式的面向文档的 NoSQL 数据库管理系统，该系统联合了 CouchDB 的简单和可靠以及 Memcached 的高性能以及 Membase 的伸缩性。
　　对于开发者来说，该版本值得关注的新特性包括：

• 　　Query Workbench– 内建的查询编辑器
  
• 　　Full-text Search – support for term, fuzzy, phrase, match, and prefix queries has been added –>
  
• 　　Sub-document API– enables clients to add, remove, and modify individual fields (or readthem), including objects and arrays, without reading and writing the entire document
  
  
  
  • 　　Blog: Sub-documents: find and change only what you need by @matthewrevell
    
  
  
• 　　Array Indexing – index specific fields of elements within nested arrays to improve query performance
  
• 　　Extended N1QL joins– support a new query optimization for filtering the right side first, with an index, resulting in added flexibility and improved query performance
  
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  　　Query Profiling and Monitoring – monitor active queries and connections as well as profile queries to>
  
• 　　Many more
  

　　同时我们还提供了 Debian 8 的构建版本，详情请看 existing wide list of platforms
　　
　　相关链接:

• 　　4.5 Developer Preview Download
  
• 　　4.5 Developer Preview features at a glance
  
• 　　Blog Announcement
  
• 　　Docs
  
• 　　Release Notes
  
• 　　Docker images