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https://issues.apache.org/jira/browse/CALCITE-1697?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16302956#comment-16302956
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Vladimir Dolzhenko commented on CALCITE-1697:
---------------------------------------------

[~julianhyde] I've checked on current 
https://github.com/vlsi/calcite-test-dataset/ - works fine (expect 2 broken 
general functionality or translation) + tried with embedded mongod (it 
downloads the latest prod mongod) - the same results, and stand alone mongo 
3.4.10 - works fine.

so far - there are no incompatible mongo aggregation operation is used

> Update Mongo driver version
> ---------------------------
>
>                 Key: CALCITE-1697
>                 URL: https://issues.apache.org/jira/browse/CALCITE-1697
>             Project: Calcite
>          Issue Type: Improvement
>          Components: mongodb
>    Affects Versions: 1.11.0
>            Reporter: Michael Mior
>            Assignee: Michael Mior
>             Fix For: 1.16.0
>
>
> The current version of the Mongo driver is quite outdated. This causes issues 
> such as getCollectionNames returning empty on newer versions of the Mongo 
> server. This effectively makes the driver unusable since Calcite will never 
> see any tables in the schema.



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