Re: Single-argument variant for array_length and friends?

2013/3/21 Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>:
> Brendan Jurd <direvus(at)gmail(dot)com> writes:
>> While I was working on my empty array patch I was frequently irritated
>> by the absence of an array_length(anyarray). The same goes for
>> array_upper and array_lower. Most of the time when I work with
>> arrays, they are 1-D, and it's inelegant to having to specify which
>> dimension I mean when there is only one to choose from.
>
>> The question I have (and would appreciate your input on) is how such
>> single-argument variants should behave when operating on an array with
>> multiple dimensions?
>
> I'm not entirely convinced that this is a good idea, but if we're going
> to allow it I would argue that "array_length(a)" should be defined as
> "array_length(a, 1)". The other possibilities are too complicated to
> explain in as few words.
>

exactly

+1

Pavel

> regards, tom lane
>
>
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