如何在 Solr 中获取最后一个索引记录? [英] How to get last indexed record in Solr?

问题描述

我想知道如何在 Apache Solr 中获取/搜索最后索引的记录..?

I want to know how to get/search last indexed record in Apache Solr..?

当现有记录更新时，它会转到所有记录的末尾......所以我想获得最后一个索引记录.

When the existing record is updated then it goes to end of all the records...so I want to get that last indexed record.

谢谢..

推荐答案

您可以在 Solr 架构中添加一个时间戳"字段，以便在添加时将当前日期/时间放入记录中.

You could add a 'timestamp' field to your Solr schema that puts the current date/time into the record when it is added.

<field name="timestamp" type="date" indexed="true" stored="true" default="NOW" multiValued="false"/>

然后，按此字段降序排序，第一条记录将是最新的.像这样的查询应该这样做:-

Then, do a sort in descending order by this field and the first record will be the latest one. A query like this should do it:-

http://localhost:8080/solr/core-name/select/q=*%3A*&start=0&rows=1&sort=timestamp+desc

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