David Garamond <[EMAIL PROTECTED]> writes:
> Perhaps we can change section 9.1 from "Logical Operators" to "Logical 
> Functions and Operators"? NULLVALUE() and NONNULLVALUE() can be 
> documented there, along with IS, IS NULL, and IS NOT NULL (which also 
> don't seem to have been covered yet in Chapter 9).

I don't think we should document nullvalue() and nonnullvalue(), because
they are not standard.

As for "not covered", IS NULL is documented in 9.2 Comparison Operators.

                        regards, tom lane

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