Solr的WiKI原文是如下解释: facet.missing Set to "true" this param indicates that in addition to the Term based constraints of a facet field, a count of all matching results which have no value for the field should be computed The default value is false.…
简介 facet的查询结果主要是分组信息:有什么分组,每个分组包括多少记录:但是分组中有哪些数据是不可知道的,只有进一步搜索. group则类似于关系数据库的group by,可以用于一个或者几个字段去重.显示一个group的前几条记录等. 来自solr ref guide的解释: Result Grouping groups documents with a common field value into groups and returns the top documents for eac…
iOS打包导出时出现Missing iOS Distribution signing 上传APP就出现Missing iOS Distribution signing indetity for 打包ipa因“此证书的签发者无效” 导致的 “Missing iOS Distribution signing identity for”...的问题…