e.g. make a search for "s1601" work just as well as one for "S1601".
Actually the columns plugin_rule_key and plugin_config_key are not indexed and analyzed to resolve the query with the case insensitive feature.
To do that , first we must analyse the fields with the following analyzers :
Second action , we need to modify the structure of the query to include the fields plugin_rule_key and pluging_config_key in the simple_query_string :
I specified a boost 20 for these fields, this point could be discussed.