There is an element-exists termlist entry, so cts:element-query(xs:QName('p'),
cts:and-query(())) is fast.
Element-attribute values and element-attribute words are indexed by default.
But attribute values and words are indexed as dependents on a parent element. I
don't think there's an existence termlist entry for attributes, with or without
a parent element. So cts:element-attribute-value-query(xs:QName('p'),
xs:QName('id'), 'fubar') is fast. But there's no default index for a
cts:element-attribute-query(xs:QName('p'), xs:QName('id'), cts:and-query(()))
to use.
In theory I think a cts:element-attribute-query term could use a range index on
that element-attribute if it existed, and simply ignore the values. But there
might be a technical obstacle, and in any case I haven't heard much demand for
it.
-- Mike
On 30 Jan 2014, at 13:36 , Geert J. <[email protected]> wrote:
> Hi,
>
> http://stackoverflow.com/questions/21434099/checking-presence-of-attribute
> -with-ctsquery
>
> Was looking at this stackoverflow question, and couldn't help wondering
> why isn't there a cts:element-attribute-query function. Because attributes
> are not indexed by default?
>
> Cheers
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