[teiid-issues] [JBoss JIRA] (TEIID-3063) Push down DISTINCT with select expression in the query and the datasource doesn't support select expressions

[Steven Hawkins (JIRA)]

     [ https://issues.jboss.org/browse/TEIID-3063?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Steven Hawkins resolved TEIID-3063.
-----------------------------------

        Labels:   (was: teiid)
    Resolution: Done


Added logic in rule collapse source to detect this situation.

> Push down DISTINCT with select expression in the query and the datasource doesn't support select expressions 
> -------------------------------------------------------------------------------------------------------------
>
>                 Key: TEIID-3063
>                 URL: https://issues.jboss.org/browse/TEIID-3063
>             Project: Teiid
>          Issue Type: Enhancement
>      Security Level: Public(Everyone can see) 
>          Components: Query Engine
>    Affects Versions: 8.7
>         Environment: Windows
>            Reporter: Sanjeev Gour
>            Assignee: Steven Hawkins
>             Fix For: 8.9
>
>
> Teiid doesn't push down DISTINCT when a select expression is used and the underlying data source doesn't support select expressions. The data source supports DISTINCT.
> Related discussion thread: https://community.jboss.org/thread/243376



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