[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-969) InformixDialect uses wrong sql for substring function

[Martin Heitz (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-969?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=42992#comment-42992 ] 

Martin Heitz commented on HHH-969:
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The fix suggested by Scott works fine for me. Anyway a fix in the Hibernate InformixDialect would be much better.

Best regards, Mattin

> InformixDialect uses wrong sql for substring function
> -----------------------------------------------------
>
>                 Key: HHH-969
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-969
>             Project: Hibernate Core
>          Issue Type: Bug
>    Affects Versions: 3.0.5
>         Environment: Hibernate 3.0.5, Informix 9.4
>            Reporter: Scott Russell
>
> InformixDialect inherits function definitions from its parent Dialect. However, the default sql syntax for substring, substring(str, start, len) is not supported in Informix. Rather, Informix uses the following syntax: substring(str FROM start FOR len)
> The following line needs to be added to the InformixDialect constructor in order for this function to work correctly:
> registerFunction( "substring", new SQLFunctionTemplate(Hibernate.STRING, "substring(?1 FROM ?2 FOR ?3)" ));
> -Scott

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