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13 hours ago · Caesarean section, also known as C-section, cesarean, or caesarean delivery, is the surgical procedure by which one or more babies are delivered through an incision in the mother's abdomen. It is often performed because vaginal delivery would put the mother or child at risk. [ 2 ] .
13 hours ago · Abington Pa,Montgomery County,Parents Killed. The bodies of Reid Beck and Miriam Beck were found on January 17, 2023, after their son told Abington police he had gone to his parents' home to check on them because he hadn't spoken to them by phone since Jan. 7.
13 hours ago · 一、ElasticSearch为啥要用. ElasticSearch简称es是一个ElasticSearch是一个分布式，高性能、高可用、可伸缩的搜索和分析系统 。 可以当做一个上层数据库来使用和关系数据库和Nosql有一定区别和相似性。 其他搜索引擎，Lucene（Es底层）、Apache Solr （底层Lucene）。 使用es的几个原因： 关系型数据库模糊搜索不足索引，会全表扫描非常慢。 %关键词%这种搜索会非常慢。 主：关系型数据库支持的是%关键词，搜索非常快。 关系型数据库不支持 全文搜索分词， eg 我想baidu搜索电影 碟中谍-全面瓦解 的时候，不小心打错了，打成了 全瓦解，es就可以根据分词搜索出来这个电影。
