[teiid-issues] [JBoss JIRA] (TEIID-4129) Wrong results with cross model join on 2 varchar fields

[Steven Hawkins (JIRA)]

    [ https://issues.jboss.org/browse/TEIID-4129?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13193809#comment-13193809 ] 

Steven Hawkins commented on TEIID-4129:
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CollationLocale currently only has meaning if it matches the system property value.  And for this scenario it is not required to set the system property org.teiid.requireTeiidCollation=true

I'll see if there is a warning or other logic that would help prevent this from being an issue that requires a manual workaround.

> Wrong results with cross model join on 2 varchar fields
> -------------------------------------------------------
>
>                 Key: TEIID-4129
>                 URL: https://issues.jboss.org/browse/TEIID-4129
>             Project: Teiid
>          Issue Type: Bug
>            Reporter: Mark Tawk
>            Assignee: Steven Hawkins
>         Attachments: H2 DBs.zip, MetaDataStores.zip
>
>
> I'm using Teiid 8.11.3 with H2 translator.
> I'm joining 2 h2 tables from 2 different teiid models linked on varchar fields.
> the query result is retuning empty values from the joined table even though the joined values are identical.
> You find attached a zip file containing 2 h2 DBs for a simplified example
> Here is the query used:
> _select "Customer"."City" as "Customer_City","Customer"."CustomerID" as "Customer_CustomerID","City"."City" as "City_City","City"."CityID" as "City_CityID" 
> from "db2"."Customer" "Customer" 
> LEFT JOIN "db1"."City" "City" ON "Customer"."City" = "City"."City"_
> Note that if the 2 tables are in the same model, the query return correct results.



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