[teiid-issues] [JBoss JIRA] (TEIID-4228) ODBC "Parse Statements" option can result in changes in LENGTH metadata for columns

[Steven Hawkins (JIRA)]

    [ https://issues.jboss.org/browse/TEIID-4228?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13410726#comment-13410726 ] 

Steven Hawkins commented on TEIID-4228:
---------------------------------------

The logic that adjusts the scale when it is larger than the precision does not account for a zero precision, they the 0 scale.  I'll address this under a new issue, but generally it's a corner case as the incoming metadata is invalid.

> ODBC "Parse Statements" option can result in changes in LENGTH metadata for columns
> -----------------------------------------------------------------------------------
>
>                 Key: TEIID-4228
>                 URL: https://issues.jboss.org/browse/TEIID-4228
>             Project: Teiid
>          Issue Type: Sub-task
>          Components: ODBC
>    Affects Versions: 8.7
>         Environment: Connections through ODBC driver
>            Reporter: Marc Shirley
>            Assignee: Steven Hawkins
>            Priority: Minor
>             Fix For: 9.1
>
>
> Connections through ODBC driver with the driver setting "Parse Statements" option enabled can result in incorrect length values being passed to the client.  In some cases (such as SQL Server linked server capabilities), this can result in the client throwing exceptions due to the expected LENGTH changing during the course of the query execution.
> This may be limited to columns with precision set to 0, as the SQL Server linked server case was corrected when the precision was changed from 0 to 9 for the column specified in the error.



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