Limitations

MongoDB supports all IR node types. There are no operations that throw NotSupportedException.

One behavioral note: passing an empty list to .In(...) produces { field: { $in: [] } }, which MongoDB evaluates as an always-false filter (zero documents returned). This is consistent with the Elasticsearch and SQL adapters.

Field names in the filter come directly from the .NET property name. To use a custom MongoDB field name, apply [BsonElement("fieldName")] on the entity property.

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