[teiid-issues] [JBoss JIRA] (TEIID-4213) Cassandra translator: enable pushdown of aggregate functions

[Steven Hawkins (JIRA)]

    [ https://issues.jboss.org/browse/TEIID-4213?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13298645#comment-13298645 ] 

Steven Hawkins commented on TEIID-4213:
---------------------------------------

Since aggregate functions weren't added until 2.2, it would be best to have the support marked as conditional - or update the admin guide to state that it's our minimum expected server version.  

It also looks like we're due for a client driver upgrade, as even our version detection logic wouldn't work in this case as we are using the 2.1 client.

> Cassandra translator: enable pushdown of aggregate functions
> ------------------------------------------------------------
>
>                 Key: TEIID-4213
>                 URL: https://issues.jboss.org/browse/TEIID-4213
>             Project: Teiid
>          Issue Type: Feature Request
>          Components: Misc. Connectors
>    Affects Versions: 8.12.x
>            Reporter: Jan Stastny
>            Assignee: Ramesh Reddy
>            Priority: Minor
>             Fix For: 9.1
>
>
> Cassandra supports basic aggregate functions:
> MIN(),MAX(),SUM() and AVG()
> Currently Teiid doesn't push such queries.
> NOTE:In case of AVG() there is difference between the values returned from Teiid vs. Cassandra for an integer column. Cassandra returns only whole part of the number as integer, Teiid returns bigdecimal.



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