I've setup Elasticsearch on magento and when trying to search by any string I'm getting an error
illegal_argument_exception: Invalid format: "search string"
I found out that when I removed all datetime attribute I've got another error
number_format_exception: For input string: "search string"
And I understand that now something wrong with int type attributes
When I'm searching by int everything is ok, result is there.
My suggestion - Elasticsearch created incorrect mapping (I didn't created it by hand it was done automatically after reindex products) but I wonder how to check this to be sure. Or have I ability to setup my own mapping.