I have a simple csv file with 4 columns that I want to upload and push in ES. For that I am using the data visualizer option in ML (on Kibana). I click on import file, select the file, enter index name and done.
My issue is that I want to change and have a custom '_id' value (say 1st column from the csv file as '_id'), so that I can handle any duplicate data uploaded next time.
If I use logstash, I am aware I can use document_id in ES output, but how do I achieve the above while directly uploading the file from Kibana.
Any help would be appreciated.