I can reproduce that XDMP-ARGTYPE with 7.0-2.3 on OSX. I suspect it's a bug.
Another workaround is:
json:array-size(
cts:value-tuples(
cts:element-reference(xs:QName('prop:last-modified')))[1]
cast as json:array)
BTW xdmp:type seems to agree that the output from cts:value-tuples is already a
json:array, returning QName("http://marklogic.com/xdmp/json";, "array").
-- Mike
On 12 May 2014, at 12:08 , Will Thompson <[email protected]> wrote:
> This is interesting. Even though the return value is reported as a
> json:array, the function works if it’s coerced into a json:array before
> calling:
>
> let $tuple as json:array := cts:value-tuples($some-cts-reference)[1]
> return json:array-size($tuple)
> => 1
>
>
> On May 12, 2014, at 12:15 PM, Will Thompson <[email protected]>
> wrote:
>
>> let $tuple := cts:value-tuples($some-cts-reference)[1]
>> return xdmp:describe($tuple)
>> =>
>> json:array(<json:array...><json:value ...>...</json:array>)
>>
>> return json:array-size($tuple)
>> =>
>> [1.0-ml] XDMP-ARGTYPE: (err:XPTY0004)
>> json:array-size(json:array(<json:array>...</json:array>)) -- arg1 is not of
>> type json:array?
>>
>> Am I missing something, or should I contact support?
>>
>> -Will
>> _______________________________________________
>> General mailing list
>> [email protected]
>> http://developer.marklogic.com/mailman/listinfo/general
>
> _______________________________________________
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>
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