value.lower() prevents correctly execute request es.filter().

[onegreyonewhite]

This is very strange action.
Why are you do this?
I`m saving my data with some upper symbols like "hrStorageUsed".
This action is necessary?

[lauxley]

Hi, good catch, it probably comes from a special mapping i had or something.
Also the doc seems to be wrong:

Also by default, filters are case insensitive, if you have a case sensitive tokenizer, you need to instantiate EsQueryset with ignore_case=False.

It is actually the exact opposite of the truth i believe, filters are case sensitive unless you use the lowercase filter on an analyzed field ! And the ignore_case argument to EsQueryset doesn't even exists yet.

This is explained in details here : https://www.elastic.co/guide/en/elasticsearch/guide/current/_finding_exact_values.html#_term_query_with_text

Maybe it would be nice to raise something (a warning at least) when trying to .filter() on an analyzed text field ?

[onegreyonewhite]

Maybe it would be nice to raise something (a warning at least) when trying to .filter() on an analyzed text field ?
Nice idea.
I was fix this on my project by create EsQueryset class and remove this action.

[lauxley]

I opened a PR #51, it should solve the problem along with some other filters issues (maybe even #50 but i didn't make a test case yet).

[onegreyonewhite]

This issue could be closed if PR #51 will merged.