I have an application using a number of different mongo databases and 99% of the time it needs to read from the primary of the replica set but I have a couple reporting queries that pull back a lot of data and are not covered by indexes and I would like them to run against a secondary. Is there any way to specify for a single query that it should have a read preference of secondary. I am wanting to avoid having more connection strings as I already have near a dozen in the application.
为此,集合中有几个WithXXX方法。
collection.WithReadPreference(ReadPreference.SecondaryPreferred).Find(...)
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