Elasticsearch unwanted lowercase when indexing

Hi there,

I have an indexing problem with Elasticsearch. I have a field with the type "text" that makes its value lowercase.

I'm using Hot-Warm-Architecture policy with index templates where I specify shard settings and mapping(where i specified that field to be text).

Any idea what could be?

Normally case insensitivity is desirable in text fields. What is the content you are indexing and why is case important?
Depending on the answers it may be more appropriate to use the keyword field.

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