getIndexes() command - View JSON indexes for all collections

Prints index information for all the collections in this JSON namespace.

Syntax diagram

Command arguments

filter

This optional argument specifies the selection criteria for indexes. The query options are as follows:

ns: Get details for the indexes on this schema.collection.
id: Get details for the index with this identifier.
key: Get details for indexes with the specified attribute.
name: Get details for the index with this name.
schema: Get details for the indexes with this schema.

Example

Example 1: View a list of all indexes and type markers in this namespace

db.getIndexes())

Sample output:

[{"v":0,"_id":57,"key":{"_id_":1},"ns":"TEST.books","name":"_id_","unique":true},
{"v":0,"_id":63,"key":{"author":1},"ns":"TEST.books","name":"books_xauthor","unique":false},
[{"v":0,"_id":65,"key":{"_id_":1},"ns":"TEST.dvds","name":"_id_","unique":true},
{"v":0,"_id":66,"key":{"title":1},"ns":"TEST.dvds","name":"dvds_xtitle","unique":false}]

Example 2

db.getIndexes({"name": "_id_"})

Sample output:

[{"v":0,"_id":57,"key":{"_id_":1},"ns":"TEST.books","name":"_id_","unique":true},
{"v":0,"_id":65,"key":{"_id_":1},"ns":"TEST.dvds","name":"_id_","unique":true}]