# Elasticsearch index wildcard vs alias performance inpact **URL:** \ **Category:** Elasticsearch\ **Created:** [March 7, 2024, 9:58am UTC](https://discuss.elastic.co/t/elasticsearch-index-wildcard-vs-alias-performance-inpact/354933 "2024-03-07T09:58:52Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![J\_Kit](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/j_kit/32/77810_2.png) [@J\_Kit](https://discuss.elastic.co/u/J_Kit)\ **Post date:** [March 7, 2024, 9:58am UTC](https://discuss.elastic.co/t/elasticsearch-index-wildcard-vs-alias-performance-inpact/354933/1 "2024-03-07T09:58:52Z")
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. ---
**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\ **Post date:** [March 7, 2024, 10:07am UTC](https://discuss.elastic.co/t/elasticsearch-index-wildcard-vs-alias-performance-inpact/354933/2 "2024-03-07T10:07:06Z")
It should have no impact at all as exactly the same indices and shards would be queried in both cases. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [April 4, 2024, 10:07am UTC](https://discuss.elastic.co/t/elasticsearch-index-wildcard-vs-alias-performance-inpact/354933/3 "2024-04-04T10:07:27Z")
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