Table Elimination page has meaningless content

The page
https://mariadb.com/kb/en/table-elimination-in-mariadb/

has meaningless content. it seems to be a copy-paste of some paragraphs in the middle of
https://petrunia.net/2009/11/01/mariadb-51-feature-table-elimination/ .

Copying is fine. The problem is that the copied part is not comprehensible.

greenman, could you please fix this? Please make the content on the KB page self-contained. Feel free to use as much content as needed from the blog post.