[teiid-issues] [JBoss JIRA] (TEIID-5176) Postgresql ODBC driver converts {fn CONCAT()} calls to a "textcat()" function

[Steven Hawkins (JIRA)]

    [ https://issues.jboss.org/browse/TEIID-5176?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13503617#comment-13503617 ] 

Steven Hawkins commented on TEIID-5176:
---------------------------------------

>From https://git.postgresql.org/gitweb/?p=psqlodbc.git;a=blob_plain;f=convert.c;hb=HEAD there are several escape functions that we could add support for: concat, ltrim, rtrim, and dayname.

>  Postgresql ODBC driver converts {fn CONCAT()} calls to a "textcat()" function
> ------------------------------------------------------------------------------
>
>                 Key: TEIID-5176
>                 URL: https://issues.jboss.org/browse/TEIID-5176
>             Project: Teiid
>          Issue Type: Quality Risk
>          Components: ODBC
>            Reporter: Debbie Steigner
>            Assignee: Steven Hawkins
>             Fix For: 10.1, 10.0.2
>
>
> Customer is using tableau which converts to a SQL statement that includes nested concat function calls like [1].  The Postgresql ODBC driver appears to interpret those {fn CONCAT()} calls and converts to a "textcat()" function, which then results in a parsing error from Teiid since we don't support a textcat() function.
> [1] {fn CONCAT({fn CONCAT("TripSourceHotelBooking"."HotelCity", ', ')}, "TripSourceHotelBooking"."HotelCountry")} AS "Calculation_984036526439337984",



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