On databases with a large number of res.partner entries,
the extended name_search of analytic accounts was prohibitively
slow, due to the expensive name_search on res.partner.
Restricting the search to the partner name is extremely
similar business-wise, but makes a huge difference in
terms of speed. E.g. sub-second results vs 10+ minutes
for a database with 30k analytic accounts and 600k partners.