Alvaro Herrera <alvherre@commandprompt.com> writes:
> Peter Eisentraut wrote:
>> Then I noticed that the SQL standard requires parentheses, like
>>
>> TRUNCATE ONLY (a), b
>>
>> which is clearer.
> Hmm, if I want to truncate only both (or is that "both only"?), what do
> I have to do?
> TRUNCATE ONLY (a, b)
Yeah. To me those parentheses look more like redundant parentheses,
eg writing 2 + (2) instead of just 2 + 2. If you consider that they're
not redundant then it becomes a fair question why Alvaro's multiple-
elements syntax doesn't work.
In the end what you have to point out is that ONLY binds tighter than
comma. I don't think that parens where the committee put them help
resolve that at all.
regards, tom lane
