### 索引变化(Indices changes) 1\. 索引末班使用"index_patterns"来替代"template" 在之前的模板表达式中,应该在"template"字段中使用全局的类型模式.现在将会使用"index_patterns"来进行替换.该名称 Previously templates expressed the indices that they should match using a glob style pattern in the `template` field. They should now use the`index_patterns` field instead. As the name implies you can define multiple glob style patterns in an array but for convenience defining a single pattern as a bare string is also supported. So both of these examples are valid: 2\. 影子副本被移除 3\. 打开/关闭索引API允许通配符表达式,默认情况下不匹配任何索引 4\. 删除一个文档 5\. 索引别名API仅针对索引解析索引表达式 6\. 索引删除API仅针对索引解析索引表达式 7\. 索引表达式中取消对"+"的支持 8\. 保留translog