[pmwiki-users] RFC: Community poll for PageList link/category arguments

Petko Yotov 5ko at 5ko.fr
Sun Dec 26 22:57:27 PST 2021

Thank you Gilles, these are great questions. My replies below.

On 27/12/2021 01:28, ABClf wrote:
> I understand current installations won't be broken, yet I have a
> question about performance, concerning multiple link in pagelist :
> when benchmarking the same pagelist, targeting a one single link,
> native link=mylink against cookbooked links=mylink,
> it looks to me that native is faster ; am I right ?
> https://www.languefrancaise.net/Test/PageListMultiple (around 3)
> https://www.languefrancaise.net/Test/PageListNormal (around 1,70)
> If so, would it be possible to get the best of each : native for one
> target search, and complex for complex queries ?

First, this is a fabulous installation with 64817 pages! It will be 
great indeed to benchmark the new feature.

Second, we need to look at the numbers between the start and end of the 
functions, so the difference between the core and the recipe are even 

422: 00,69 PageListTermsTargets begin count=64817
425: 01,09 PageListTermsTargets end count=164

1.09-0.69=0.4 seconds for the core processing

422: 00,76 PageListMultiTargets begin count=64817
425: 03,17 PageListMultiTargets end count=164

3.17-0.76=2.41 seconds for the recipe, that's about 6 times more 

Indeed, in 2.3.0, when you have link=SinglePage, then the original 
scanning method is used, so the times should be very close to the 
current ones.

When you're searching for links to multiple pages or to wildcards, the 
new core algorithm is different from the one in the recipe, with fewer 
loops, and I believe (hope) it will be faster than the current recipe.

Again, your installation will be a great place to verify this.

> Question 2, for this paragraph :
> link=PageA,PageB should list pages linking to "AT LEAST ONE" among
> PageA and PageB.
> link=+PageA,+PageB should list pages linking to "BOTH" PageA and PageB.
> I would like to know if case bellow is involved in the choice.
> In my case, I have a group made of pages named 1900, 1901, 1902, etc.,
> for aggregating words by years.
> Then, for the query
> links=Year.199*
> expected output would be to list pages having a link to any year page
> from 1990 to 1999 (and not list pages having a link to all pages
> included in the range).

link=Year.199* or link=+Year.199* lists pages linking to any page with 
the pattern, not to all pages, whether the target page exists or not.

The wildcard characters are about characters, not about existing pages:

   ? = exactly one character, any character
   * = between zero and any number of any character(s)

The poll is more about a case like link=GroupA.*,GroupB.* then we need 
to decide how we want it to behave.

Should it require at least one link to GroupA OR to GroupB like in the 

Should it require at least one link to GroupA AND at least one link to 
GroupB? Or should this case be written as link=+GroupA.*,+GroupB.* ?


> Le sam. 25 déc. 2021 à 09:13, Petko Yotov <5ko at 5ko.fr> a écrit :
>> Hello,
>> I hope you are all safe, and happy holidays if you're celebrating!
>> I've been working on some new features for version 2.3.0 and I'd like
>> your input.
>> If you have a few minutes, please look at this page:
>>    https://www.pmwiki.org/wiki/PITS/01475
>> ...and consider which ones of the proposed implementations may suit 
>> your
>> wiki and your editors best, and add your name.
>> I'd like to see some comments/votes and to release 2.3.0 by January 8.
>> 2022, which will include implementing and documenting the new 
>> features.
>> If you have questions or suggestions, you can add them to the page, or
>> reply to the mailing list.
>> Thank you in advance.
>> Petko

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