Where can I find all mongodb explain stages name?

Ask Time：2017-05-17T14:08:46 Author：Joey Yi Zhao

MongoDB explain is really a good feature to analyze performance. I wonder where I can get all explain stage name. From this link https://docs.mongodb.com/manual/reference/explain-results/ it gives me below stages:

COLLSCAN for a collection scan
IXSCAN for scanning index keys
FETCH for retrieving documents
SHARD_MERGE for merging results from shards

there must be other stages in MongoDB. Where can I get them?

Author:Joey Yi Zhao，eproduced under the CC 4.0 BY-SA copyright license with a link to the original source and this disclaimer.
Link to original article：https://stackoverflow.com/questions/44016843/where-can-i-find-all-mongodb-explain-stages-name

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