在将列更新为辅助索引后，Cassandra DB索引数据何时更新 [英] When does Cassandra DB index data after updating a column as secondary index

问题描述

我已经创建了一个辅助索引通过使用更新列...从cassandra-cli，然后我使用commnand测试 get User where code ='MX' ，代码是我放置为索引的列，此命令只返回在创建索引后插入的数据，但以前的数据未返回，我认为以前的数据也将被索引，任何人都有一个线索？
提前感谢

I've a created a secondary index by using update column ... from cassandra-cli , then I tested by using commnand get User where code = 'MX' , code was the column I put as index, this command just returns data inserted after index creation, but data before is not returned , I thought that previous data would be indexed too , anyone has a clue? thanks in advance

推荐答案

在Cassandra中，辅助索引只有在创建后才开始工作。
浏览apache-cassandra库中的SecondaryIndex类。它将帮助你的理解。

In Cassandra, secondary index starts working only after it is being created. Go through the SecondaryIndex class in apache-cassandra library. It will help you in understanding.

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