Create a unique index
db.user.createIndex({"name":1},{"unique":true})
expired index
db.log_events.createIndex( { "createTime": 1 }, --- Field name
{ expireAfterSeconds: 60*60 } ) --- Expiration time (in seconds)
Create a unique index
db.user.createIndex({"name":1},{"unique":true})
expired index
db.log_events.createIndex( { "createTime": 1 }, --- Field name
{ expireAfterSeconds: 60*60 } ) --- Expiration time (in seconds)