I have products with an attribute called "siblings", which is a CSV list of related SKUs of another products.
What I need to do is the following: when I search one of these products, the result set must contain the matching product along with all the "siblings".
Any help will be appreciated.
Thanks!
On the admin, go to Catalog->Attributes->Manage Attributes, Select "Siblings", select "Yes" on "Use on quick search".
We have a similar attribute implemented and it works fine, at least on solr, do test if this works for you on regular fulltext.