planCacheClearFilters

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Definition

Compatibility
Syntax
Required Access
Examples

Definition

planCacheClearFilters

Removes index filters on a collection. Although index filters only exist for the duration of the server process and do not persist after shutdown, you can also clear existing index filters with the planCacheClearFilters command.

Specify the query shape to remove a specific index filter. Omit the query shape to clear all index filters on a collection.

Compatibility

This command is available in deployments hosted in the following environments:

MongoDB Atlas: The fully managed service for MongoDB deployments in the cloud

Important

This command is not supported in M0, M2, and M5 clusters. For more information, see Unsupported Commands.

MongoDB Enterprise: The subscription-based, self-managed version of MongoDB
MongoDB Community: The source-available, free-to-use, and self-managed version of MongoDB

Syntax

The command has the following syntax:

db.runCommand(
   {
      planCacheClearFilters: <collection>,
      query: <query pattern>,
      sort: <sort specification>,
      projection: <projection specification>,
      comment: <any>
   }
)

The planCacheClearFilters command has the following field:

Field	Type	Description
`planCacheClearFilters`	string	The name of the collection.
`query`	document	Optional. The query predicate associated with the filter to remove. If omitted, clears all filters from the collection. The values in the `query` predicate are insignificant in determining the query shape, so the values used in the query need not match the values shown using `planCacheListFilters`.
`sort`	document	Optional. The sort associated with the filter to remove, if any.
`projection`	document	Optional. The projection associated with the filter to remove, if any.
`comment`	any	Optional. A user-provided comment to attach to this command. Once set, this comment appears alongside records of this command in the following locations: mongod log messages, in the `attr.command.cursor.comment` field. Database profiler output, in the `command.comment` field. `currentOp` output, in the `command.comment` field. A comment can be any valid BSON type (string, integer, object, array, etc).

Required Access

A user must have access that includes the planCacheIndexFilter action.

Examples

Clear Specific Index Filter on Collection

The orders collection contains the following two filters:

{
  "query" : { "status" : "A" },
  "sort" : { "ord_date" : -1 },
  "projection" : { },
  "indexes" : [ { "status" : 1, "cust_id" : 1 } ]
}
{
  "query" : { "status" : "A" },
  "sort" : { },
  "projection" : { },
  "indexes" : [ { "status" : 1, "cust_id" : 1 } ]
}

The following command removes the second index filter only:

db.runCommand(
   {
      planCacheClearFilters: "orders",
      query: { "status" : "A" }
   }
)

Because the values in the query predicate are insignificant in determining the query shape, the following command would also remove the second index filter:

db.runCommand(
   {
      planCacheClearFilters: "orders",
      query: { "status" : "P" }
   }
)

Clear all Index Filters on a Collection

The following example clears all index filters on the orders collection:

db.runCommand(
   {
      planCacheClearFilters: "orders"
   }
)