[eclipselink-dev] overwriteing coalesce

["Goerler, Adrian" <adrian.goerler@xxxxxxx>]

Hi Tom,

 

https://bugs.eclipse.org/bugs/show_bug.cgi?id=316774

 

as mentioned in yesterdays call, we are a bit stuck with this bug.

 

Basically, on MaxDB, we need a mechanism to replace

 

COALESCE(.., .., .., ..)

 

with

 

VALUE(.., .., ..).

 

Overwriting ExpressionOperator.coalesce() with a platform operator does not do the trick, as it appears that ExpressionOperator.coalesce() is never used. Instead, COALESCE seems to be hard-wired in _expression_.

 

I am not familar enough with the _expression_ framework to make a smooth proposal to tackle this issue.

 

Any help is apreciated.

 

Thanks and best regards,

 

Adrian

 

 

 

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