I've discovered that I need milisecond on a field with type
date, however I already stored some data with it. On ElasticSearch 2.X, it was possible to only change the date format of a field:
formatsetting must have the same setting for fields of the same name in the same index. Its value can be updated on existing fields using the PUT mapping API.
However, I don't see anything on the Elasticsearch 6.X documentation, and I only need to change the following:
"format" : "yyyy-MM-dd HH:mm:ssZ"
"format" : "yyyy-MM-dd HH:mm:ss.SSSSSSZ"
Is the modification's possible without consequences ?