Bruce Momjian <bruce@momjian.us> writes:
>> b) If VB is 0 (zero) and VE is negative, then an exception condition is
>> raised: data exception Ñ invalid argument for power function.

> Well, this indicates we shouldn't return "zero raised to a negative
> power is undefined", but rather the power error we are giving now, or
> are you saying we should return the "power" error code but an error
> message mentioning zero?

The spec says what the SQLSTATE code should be. We have always felt
free to word the message text more specifically than that, though.

regards, tom lane

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