I followed this page: Update mapping API | Elasticsearch Guide [master] | Elastic It seems ES does not support delete a mapping field directly?

How to delete a mapping field of an index?

Christian_Dahlqvist (Christian Dahlqvist) April 16, 2021, 10:17am 2

No, that is correct. Removing mappings require reindexing.

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How to delete a mapping field of an index?

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