[Data-modeling] removal of /book/author/book_editions_published

[Faye Harris]

+1 on the normalization.

I'd like to know when 2) is done (on sandbox?) and ready for verification.

Thanks,
-- Faye


Brian Karlak wrote:
>
> Hello All --
>
> Normally, the publishing domain links authors (/book/author 
> <http://www.freebase.com/type/schema/book/author?domain=%252Fbook>) to 
> books (/book/written_work 
> <http://www.freebase.com/type/schema/book/written_work?domain=%252Fbook> + 
> /book/book 
> <http://www.freebase.com/type/schema/book/book?domain=%252Fbook>), 
> which in turn have editions (/book/book_edition 
> <http://www.freebase.com/type/schema/book/book_edition?domain=%252Fbook>).
>
> However, the /book/author type also has a property called 
> /book/author/book_editions_published, which links directly from an 
> author to an edition.  This property was useful for early mass data 
> loads of book editions, where clean data on reconciled titles was not 
> always available.
>
> At this point, however, this denormalization is no longer necessary, 
> and seems counterproductive.  Only ~400 editions link directly to an 
> author without also linking to a book.  The 
> /book/author/book_editions_published property forces user to enter 
> data in two places, with the opportunity to have inconsistent data. 
>  It also burns an unnecessary link primitive. 
>
> We would like to refactor /book/author to remove this denormalization. 
>  Specifically:
>
>     1) The /book/author/book_editions_published property will be
>     removed from the /book author schema, and its reverse property
>     author_editor will be removed from /book/book_edition.  Editions
>     will be connected to an author solely through the /book/book/edition.
>
>
>     2) New /book/book entries will be created for the ~400 editions
>     that are only linked to authors
>     via /book/author/book_editions_published.
>
>     3) After the schema modification, the current
>     /book/author/book_editions_published links will be marked for
>     later deletion from OTG.
>
>
> *Please note that this will break any existing applications that rely 
> on the /book/author/book_editions_published property.*
> *
> *
> Questions, comments and concerns all welcome, especially if you use 
> /book/author/book_editions_published -- please follow up in this thread.
> *
> *
> Brian
> (aka /user/zenkat <http://www.freebase.com/view/user/zenkat>)
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>
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