I have retrieved db values through elastcisearch and the column names are retrieved from the db that has underscore Syntax eg:user_id ,i would like to change the column name as "User_Id" .Is this possible without specifying query in logstash config file?
You need to reindex.
But I'm curious. Why do you want to do this? Json is meant to be consumed by computers not humans. So why do you care?
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