新闻 MySQL 8.0.2 DMR 发布，添加 SQL window 函数 下载

MySQL 开发团队宣布 8.0.2 开发里程碑版本（DMR）发布，已可从 dev.mysql.com 下载。源代码可在GitHub 获得。

以下是亮点：

SQL Window Functions

• 
  Add first batch of SQL window functions (WL#9236)
  
  
• 
  Add remaining non-aggregate window functions (WL#9603)
  
  
• 
  Additional aggregate window functions (WL#9727)
  

JSON

• 
  Ranges in JSON path expressions (WL#9831)
  
  
• 
  Add JSON_STORAGE_SIZE / JSON_STORAGE_FREE functions (WL#9192)
  
  
• 
  Support for partial update of JSON in the optimizer (WL#8963)
  
  
• 
  Provide logical diffs for partial update of JSON values (WL#10570)
  

GIS

• 
  Ellipsoidal relational operations and R-tree support functions (WL#8685)
  

Character Sets

• 
  Add Japanese kana sensitive collation to utf8mb4 (WL#10480)
  
  
• 
  Add utf8mb4 accent sensitive and case insensitive collation (WL#10818)
  
  
• 
  Varlen keys for sorting multibyte String values (WL#9554)
  
  
• 
  Use utf8mb4 in libmysql and command tools (WL#10353)
  
  
• 
  Change MTR tests to run with new default charset (WL#10297, WL#10300, WL#10418, WL#10319, WL#10298, WL#10296)
  

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MySQL 8.0.2 DMR 发布，添加 SQL window 函数下载地址