elasticsearch - Merge buckets with same name ignoring case -


there level analyzed field values "info", "warn", "error"...

sometimes values can lowercased "info".

when simple terms aggregation in kibana 2 buckets created: 1 "info" , "info".

i've specified case_insensitive flag without success.

is possible behavior without touching tokenization of field @ elasticsearch level?

you can achieve through scripting. though scripting not recommended makes query slow, if want result without touching tokenization can use below query.

{ "aggs" : {     "group_level_ignore_case" :{     "terms"   : {         "script" : "doc['level'].value.tolowercase()"        }     }    } }

hope helps.


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