to merge content and delete duplicate file - fix for issue https://github.com/opensearch-project/documentation-website/issues/485

Signed-off-by: alicejw <alicejw@amazon.com>

_opensearch/rest-api/index-apis/put-mapping.md

@@ -1,76 +0,0 @@
----
-layout: default
-title: Put mapping
-parent: Index APIs
-grand_parent: REST API reference
-nav_order: 200
----
-
-# Put mapping
-Introduced 1.0
-{: .label .label-purple }
-
-The put mapping API operation lets you add new mappings and fields to an index.
-
-## Example
-
-```json
-PUT /sample-index/_mapping
-{
-  "properties": {
-    "age": {
-      "type": "integer"
-    },
-    "occupation":{
-      "type": "text"
-    }
-  }
-}
-```
-
-
-## Path and HTTP methods
-
-```
-PUT /<target-index>/_mapping
-PUT /_mapping
-```
-
-## URL parameters
-
-All put mapping parameters are optional.
-
-Parameter | Data Type | Description
-:--- | :--- | :---
-&lt;target-index&gt; | Data Type | The index to add the mapping to. If you do not specify this parameter, OpenSearch adds the mapping to all indices within the cluster.
-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 a response from the cluster. Default is `30s`.
-write_index_only | Boolean | Whether OpenSearch should add the mapping only to write indexes. If false, OpenSearch can add the mapping to all indexes with the same alias. See [alias]({{site.url}}{{site.baseurl}}/opensearch/rest-api/alias/#request-body) for more information. Default is false.
-
-## Request body
-
-The request body must contain the `properties` object, which has all of the mappings that you want to add.
-
-```json
-{
-  "properties":{
-    "color":{
-      "type": "text"
-    },
-    "year":{
-      "type": "integer"
-    }
-  }
-}
-```
-
-## Response
-
-```json
-{
-    "acknowledged": true
-}
-```

_opensearch/rest-api/index-apis/update-mapping.md

@@ -12,7 +12,7 @@ Introduced 1.0
 
 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]({{site.url}}{{site.baseurl}}/opensearch/reindex-data) 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]({{site.url}}{{site.baseurl}}/opensearch/index-alias).
+**Note:** You can't 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]({{site.url}}{{site.baseurl}}/opensearch/reindex-data) to map all the documents from your old index to the new index. If you don't want any downtime while you re-index your indices, you can use [aliases]({{site.url}}{{site.baseurl}}/opensearch/index-alias).
 
 ## Example
 
@@ -36,6 +36,7 @@ PUT /sample-index/_mapping
 
 ```
 PUT /<target-index>/_mapping
+PUT /_mapping
 ```
 
 You can also use the update mapping operation to update multiple indices with one request.
@@ -50,6 +51,7 @@ All update mapping parameters are optional.
 
 Parameter | Data Type | Description
 :--- | :--- | :---
+&lt;target-index&gt; | Data Type | The index to add the mapping to. If you do not specify this parameter, OpenSearch adds the mapping to all indices within the cluster.
 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.