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

[Gabriel Steinberg (JIRA)]

Gabriel Steinberg created TEIID-3979:
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             Summary: 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
    Affects Versions: 8.13.1
            Reporter: Gabriel Steinberg
            Assignee: Steven Hawkins


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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