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https://issues.apache.org/jira/browse/CALCITE-1697?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16299038#comment-16299038
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Vladimir Dolzhenko commented on CALCITE-1697:
---------------------------------------------

No update for a long time.

There is a mongo driver of version 2.14.3 built on 18-Jul-2016, while latest 
version is 3.6.0 built on 05-Dec-2017.

There are several deprecated method - especially mongoClient.getDB() and as 
consequence have to use Document instead of DBObject.

It is a trade-off to provide compatibility with older version - or force for a 
new version ?

  

> 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
>
> The current version of the Mongo driver is quite outdated.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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