FreeText Query is slow - includes TOP and Order By

Question

The Product table has 700K records in it. The query:

SELECT TOP 1 ID, Name FROM Product WHERE contains(Name, \'\"White Dress\"\') ORDER BY DateMadeN

Answer 1

I had the same problem earlier.

The performance depends on which unique index you choose for full text indexing. My table has two unique columns - ID and article_number.

The query:

select top 50 id, article_number, name, ... 
from ARTICLE 
CONTAINS(*,'"BLACK*" AND "WHITE*"')
ORDER BY ARTICLE_NUMBER

If the full text index is connected to ID then it is slow depending on the searched words. If the full text index is connected to ARTICLE_NUMBER UNIQUE index then it was always fast.