Shouldn't = NULL be considered a syntax error ?
Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> schrieb am 29.07.2003, 07:41:15:
> "psql novice" writes:
> > stock=> select * from stock where qty = NULL;
>
> The correct incantation is
>
> select * from stock where qty IS NULL;
>
> Ordinary comparisons involving NULL always fail (or more accurately,
> return NULL). You have to use the special "is null" operator instead.
>
> regards, tom lane
>
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