Remove field from index mapping

Elastic Stack Elasticsearch
1

I'm trying to upgrate elasticsearch from 1.x to 2.x and I found that I have some field name with dot so I deleted all the indexes type has contained that field with dot but still the index mapping contains those fields name has dot.

I'm looking for a way to delete those dot fields from index mapping objects.

Any ideas to get rid of this dilema.

2

You need to reindex. My advice is to reindex in 5.x or better 6.x

3

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