Elasticsearch index wildcard vs alias performance inpact

Elastic Stack Elasticsearch
1

Hi

I currently manage daily indices such as day1, day2, day3, and so on. When performing queries, we use a wildcard like day*/_search.

I'm considering converting these daily indices to an alias, let's call it DAY, which points to all indices using a wildcard.

I'm curious if this change would have any positive impact on query performance, even if it's a minor improvement.

2

It should have no impact at all as exactly the same indices and shards would be queried in both cases.