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mongo Shell Method

This page documents a mongo method. This is not the documentation for database commands or language-specific drivers, such as Node.js. To use the database command, see the totalIndexSize field returned by the collStats command.

For MongoDB API drivers, refer to the language-specific MongoDB driver documentation.

Returns:The total size of all indexes for the collection.

If an index uses prefix compression (which is the default for WiredTiger), the returned size reflects the compressed size.