Need to create mapping for map with dotted fields

Elastic Stack Elasticsearch
1

I have a map which have keys like "post" and "post.wall". I need to create a new index in 5.4 and then reindex docs from 1.4.

What kind of mapping shall I use to create an index so that my docs get reindexed without any error?

2

One way to achieve this would be to replace '.' with some other character at index time. either a de_dot filter which is not recommended as it adds an overhead, or change the keys before indexing.

refer to this: https://github.com/elastic/elasticsearch/issues/15951

3

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