[teiid-issues] [JBoss JIRA] (TEIID-3979) Teiid generates queries containing VARCHAR without a size, causing an HSQL syntax error

[Steven Hawkins (JIRA)]

     [ https://issues.jboss.org/browse/TEIID-3979?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Steven Hawkins resolved TEIID-3979.
-----------------------------------
    Resolution: Done


Corrected the varchar cast and the usage of row values - SELECT 1 needed to be translated as VALUES(1) instead.

> Teiid generates queries containing VARCHAR without a size, causing an HSQL syntax error
> ---------------------------------------------------------------------------------------
>
>                 Key: TEIID-3979
>                 URL: https://issues.jboss.org/browse/TEIID-3979
>             Project: Teiid
>          Issue Type: Bug
>          Components: JDBC Connector
>    Affects Versions: 8.7
>            Reporter: Gabriel Steinberg
>            Assignee: Steven Hawkins
>             Fix For: 9.0, 8.12.5, 8.13.2
>
>
> When running the following query through Teiid against an HSQL database:
>     SELECT CAST(N_NATIONKEY AS VARCHAR(100)) FROM NATION
> Teiid drops the length from the query, sending to HSQL the query
>     SELECT CAST(N_NATIONKEY AS VARCHAR) FROM NATION
> which causes an HSQL syntax error.  HSQL doesn't support VARCHAR without length.
> Note: this query was generated by Tableau, and there's no easy way to change it to use the LFT function, as suggested by Steven in https://developer.jboss.org/thread/267816



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