Is it necessary to re-analyze an elasticsearch copy_to if the original content has been analyzed? -


we have elasticsearch mapping using copy_to (custom _all). used queries , not stored. analyze original file_content_de using "analyzer": "german". need analyze copy_to, es documentation not clear this?

es documentation: https://www.elastic.co/guide/en/elasticsearch/guide/2.x/custom-all.html

    "attachment_contents_de": {         "type": "string"     },     ...     "file_content_de": {         "type": "string",         "analyzer": "german",         "copy_to":  "attachment_contents_de",         "include_in_all": false,          "store":true     },     ...

yes have analyze copied field seperately official documentations mentions.

and doesn't mean re-analyze, copy_to copies string values field, field in should have own definition along analyzers defined

mappings of first_name , last_name fields have no bearing on how full_name field indexed. full_name field copies string values other 2 fields, indexes them according mapping of full_name field only.

you can define mappings attachment_contents_de suitable analyzer.

thanks


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