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Re: problem with overloading the "coalesce" function

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Richard Huxton <dev@xxxxxxxxxxxx> writes:
> Hmm - looking at the source (and \df in psql) it seems the basic problem 
> is that COALESCE() isn't a function.

If it were an ordinary function, it couldn't satisfy the property of not
evaluating "unused" arguments ...

			regards, tom lane


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