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layout	title	parent	grand_parent	nav_order
default	Update mapping	Index APIs	REST API reference	220

Update mapping

Introduced 1.0 {: .label .label-purple }

If you want to update an index's mappings to add or update field types after index creation, you can do so with the update mapping API operation.

Note that you cannot use this operation to update mappings that already map to existing data in the index. You must first create a new index with your desired mappings, and then use the reindex API operation to map all the documents from your old index to the new index. If you don't want any downtime while reindexing your indices, you can use aliases.

Example

PUT /sample-index/_mapping

{
  "properties": {
    "age": {
      "type": "integer"
    },
    "occupation":{
      "type": "text"
    }
  }
}

Path and HTTP methods

PUT /<target-index>/_mapping

You can also use the update mapping operation to update multiple indices with one request.

PUT /<target-index1>,<target-index2>/_mapping

URL parameters

All update mapping parameters are optional.

Parameter	Data Type	Description
allow_no_indices	Boolean	Whether to ignore wildcards that don’t match any indices. Default is `true`.
expand_wildcards	String	Expands wildcard expressions to different indices. Combine multiple values with commas. Available values are `all` (match all indices), `open` (match open indices), `closed` (match closed indices), `hidden` (match hidden indices), and `none` (do not accept wildcard expressions), which must be used with `open`, `closed`, or both. Default is `open`.
ignore_unavailable	Boolean	If true, OpenSearch does not include missing or closed indices in the response.
master_timeout	Time	How long to wait for a connection to the master node. Default is `30s`.
timeout	Time	How long to wait for the response to return. Default is `30s`.
write_index_only	Boolean	Whether OpenSearch should apply mapping updates only to the write index.

Request body

The request body must contain properties, which has all of the mappings that you want to update.

{
  "properties":{
    "color":{
      "type": "text"
    },
    "year":{
      "type": "integer"
    }
  }
}

Response

{
    "acknowledged": true
}

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