It is where a page can have multiple content handlers associated with it.
The most common example is commons file pages. They have normal wikitext
page, but they also have a slot containing wikidata-style data structured
data.
Whether or not you have to worry about this depends on what you're doing.
For most things probably no, but more things might have multiple slots in
the future.
--
Bawolff
On Sunday, April 5, 2020, Petr Bena <benapetr(a)gmail.com> wrote:
Hello,
https://www.mediawiki.org/wiki/API:Revisions mentions "revision slots"
multiple times, but fails to explain what it is?
I noticed that some queries that were running fine in the past now
have warning: "Because "rvslots" was not specified, a legacy format
has been used for the output. This format is deprecated, and in the
future the new format will always be used."
Which is interesting, but not very descriptive. What are revision
slots? Why are they needed? What is difference between "legacy format"
and "new format"? If rvslots are so important, why they aren't part of
some of the examples?
So far I googled this:
https://www.mediawiki.org/wiki/Manual:Slot it
seems like some new "work-in-progress" feature, that isn't very useful
yet, as there is only 1 slot in existence.
Is it necessary to pay attention to this? Can I simply silence this
warning by providing parameter rvslots=*? Or should I pay it some
deeper attention?
Thanks
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