[hibernate-dev] DB2 cross joins

Christian Beikov christian.beikov at gmail.com
Thu Feb 16 04:57:38 EST 2017


How about a different approach? Like passing the DB version somehow to 
the dialect so that it can decide for itself instead of having different 
subclasses.

Am 16.02.2017 um 08:16 schrieb Gail Badner:
> HHH-11487 can be fixed by using changing DB2Dialect#getCrossJoinSeparator
> to return " cross join ".
>
> DB2 9.1 did not support CROSS JOIN, but DB2 9.5 and later do support CROSS
> JOIN. I see that DB2 9.1 is no longer supported as of April 30, 2015.
>
> It's tempting to just update DB2Dialect, but I suspect that would break
> existing applications still using DB2 9.1.
>
> I'm considering adding a new dialect DB295Dialect that extends DB2Dialect
> and overrides DB2Dialect#getCrossJoinSeparator to return "cross join".
>
> WDYT?
>
> Regards,
> Gail
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