updateSearchIndex

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Definition
Syntax
Command Fields
Search Index Definition Syntax
Behavior
Access Control
Output
Example

Definition

updateSearchIndex

The mongosh method db.collection.updateSearchIndex() provides a wrapper around the updateSearchIndex database command.

Important

This command can only be run on a deployment hosted on MongoDB Atlas, and requires an Atlas cluster tier of at least M10.

Syntax

Command syntax:

db.runCommand(
   {
      updateSearchIndex: "<collection name>",
      id: "<index Id>",
      name: "<index name>",
      definition: {
         /* search index definition fields */
      }
   }
)

Command Fields

The updateSearchIndex command takes the following fields:

Field	Type	Necessity	Description
`updateSearchIndex`	string	Required	Name of the collection that contains the index to update.
`id`	string	Conditional	`id` of the index to update. You must specify either the `id` or `name` field.
`name`	string	Conditional	Name of the index to update. You must specify either the `id` or `name` field.
`definition`	document	Required	Document describing the updated search index definition. The specified definition replaces the prior definition in the search index. For details on `definition` syntax, see Search Index Definition Syntax.

Search Index Definition Syntax

The search index definition takes the following fields:

{
   analyzer: "<analyzer-for-index>",
   searchAnalyzer: "<analyzer-for-query>",
   mappings: {
      dynamic: <boolean>,
      fields: { <field-definition> }
   },
   analyzers: [ <custom-analyzer> ],
   storedSource: <boolean> | {
      <stored-source-definition>
   },
   synonyms: [ {
      name: "<synonym-mapping-name>",
      source: {
         collection: "<source-collection-name>"
      },
      analyzer: "<synonym-mapping-analyzer>"
   } ]
}

Field	Type	Necessity	Description
`analyzer`	string	Optional	Specifies the analyzer to apply to string fields when indexing. If you omit this field, the index uses the standard analyzer.
`searchAnalyzer`	string	Optional	Specifies the analyzer to apply to query text before the text is searched. If you omit this field, the index uses the same analyzer specified in the `analyzer` field. If you omit both the `searchAnalyzer` and the `analyzer` fields, the index uses the standard analyzer.
`mappings`	object	Optional	Specifies how to index fields on different paths for this index.
`mappings.dynamic`	boolean	Optional	Enables or disables dynamic field mapping for this index. If set to `true`, the index contains all fields containing supported data types. If set to `false`, you must specify individual fields to index using `mappings.fields`. If omitted, defaults to `false`.
`mappings.fields`	document	Conditional	Required only if dynamic mapping is disabled. Specifies the fields to index. To learn more, see Define Field Mappings.
`analyzers`	array	Optional	Specifies the Custom Analyzers to use in this index.
`storedSource`	boolean or Stored Source Definition	Optional	Specifies document fields to store for queries performed using the returnedStoredSource option. You can store fields of all Data Types on Atlas Search. The `storedSource` value can be one of these: `true`, to store all fields `false`, to not store any fields An object that specifies the fields to `include` or `exclude` from storage If omitted, defaults to `false`. To learn more, see Define Stored Source Fields in Your Atlas Search Index.
`synonyms`	array of Synonym Mapping Definitions	Optional	Specifies synonym mappings to use in your index. Configuring synonyms allows you to you index and search for words that have the same or a similar meaning. To learn more, see Define Synonym Mappings in Your Atlas Search Index.

Behavior

The updateSearchIndex command triggers an index build with the new index definition. There may be a delay between when you receive a response from the command and when the updated index is ready.

The old index definition can still support queries while the new index is being built. Once the new index finishes building, the old index is no longer usable. To see the status of your search indexes, use the $listSearchIndexes aggregation stage.

Access Control

If your deployment enforces access control, the user running the updateSearchIndex command must have the updateSearchIndex privilege action on the database or collection:

{
   resource: {
      db : <database>,
      collection: <collection>
   },
   actions: [ "updateSearchIndex" ]
}

The built-in readWrite and restore roles provide the updateSearchIndex privilege. The following example grants the readWrite role on the qa database:

db.grantRolesToUser(
   "<user>",
   [ { role: "readWrite", db: "qa" } ]
)

Output

A successful updateSearchIndex command returns the following:

{
   ok: 1
}

Important

The response field ok: 1 indicates that the command was successful. However, there may be a delay between when you receive the response and when the updated index is ready and replaces the original index.

To see the status of your search indexes, use the $listSearchIndexes aggregation stage.

Example

The following example updates a search index named searchIndex01 on the contacts collection:

db.runCommand( {
   updateSearchIndex: "contacts",
   name: "searchIndex01",
   definition:
      {
         mappings: { dynamic: true },
         storedSource: {
            exclude: [ "directors", "imdb.rating" ]
         }
      }
} )

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