Github user LosD commented on the issue:
https://github.com/apache/metamodel/pull/171
With "for Mongo3 the integration test is a single line from working", I
meant that the MongoDB integration test aaaaaaalmost works when enabled, except
for a single assert
(`org.apache.metamodel.mongodb.mongo3.MongoDbDataContextTest` line 262), so it
might be a good idea to keep it up to date, and add a test for the map issue,
since that's one of the DBs where it matters.
Yeah, at least to me it would make most sense to use the behavior of the
language we're emulating. We _could_ do it different when using the Java
interface, but that would also somehow be weird, consistency-wise. Anyway, none
of it is really a blocker, there's arguments for all approaches.
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