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Wildcard Indexes

On this page

  • Overview
  • Sample Data
  • Create a Wildcard Index

Overview

Wildcard indexes enable queries against unknown or arbitrary fields. These indexes can be beneficial if you are using a dynamic schema.

Sample Data

The examples in this guide use the sample_mflix.movies collection from the Atlas sample datasets. To learn how to create a free MongoDB Atlas cluster and load the sample datasets, see the Get Started with PyMongo.

Create a Wildcard Index

The following example creates an ascending wildcard index on all values of the location field, including values nested in subdocuments and arrays:

movies.create_index({ "location.$**": pymongo.ASCENDING })

For more information, see the Wildcard Indexes page in the MongoDB Server manual.

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