Re: Function that returns Boolean - Mailing list pgsql-general

On Mon, Feb 23, 2009 at 9:39 AM, SHARMILA JOTHIRAJAH
<sharmi_jo@yahoo.com> wrote:

>    IF ( newValue != oldValue)

One good piece of advice that Tom Lane pointed out to me was:

IF ( newValue IS DISTINCT FROM oldValue )

is better due to (what may be) the unexpected results of equality
testing when NULL values are thrown into the mix.


--
Regards,
Richard Broersma Jr.

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