Could one index alias aggregate results from multiple index?

Hello Elastic experts,

Could one index alias aggregate results from multiple index?

thanks in advance,
Lin

Yes, an alias can point to more than one index.

https://www.elastic.co/guide/en/elasticsearch/reference/current/indices-aliases.html#alias-adding

Thanks Magnus,

Is there a sample of how to create multiple index based alias? I see the samples are all based on one alias with one index? Please feel free to correct me if I am wrong.

regards,
Lin

Have a look at the fourth code block in this page of the documentation: https://www.elastic.co/guide/en/elasticsearch/reference/current/indices-aliases.html

Cool, thanks Colin.

regards,
Lin