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Quoted literal strings won't force a phrase match

  • January 18, 2008 at 10:39 am

    #202487

    Hello all,

    From what I've read, SQL Server is supposed to do a phrase match when you do a full text search that contains quoted literal strings. So, for example, if I did a full text search on the phrase "time out" and I put it in quotes, it's supposed to search for the full phrase "time out" and not just look for rows that contain the words "time" or "out." However, this isn't working for me.

    Here is the query that I'm using :

    SELECT *

    FROM Content_Items ci

    INNER JOIN FREETEXTTABLE(Content_Items, hed, '"time out"') AS ft ON ci.contentItemId = ft.

    ORDER BY ft.RANK DESC

    What's it's doing is this : it's returning a bunch of rows that have the words "time" or "out" in the column called hed. It's also returning rows that have the full phrase "time out", but it's giving those rows the same rank as rows that only contain the word "time." In this case, that rank is 180.

    Is there anything else I should be doing in my query, or is there some configuration option I should have turned on?

    Thanks.

  • January 18, 2008 at 1:47 pm

    #769878

    Ok, I've made some progress on this problem. Apparently SQL Server is ignoring noise words in my phrase match.

    For example, I ran this query :

    SELECT *

    FROM Content_Items ci

    INNER JOIN FREETEXTTABLE(Content_Items, hed, '"time capsule"') AS ft ON ci.contentItemId = ft.

    ORDER BY ft.RANK DESC

    And it did exactly what it was supposed to do, since neither "time" nor "capsule" is a noise word.

    My impression was that noise words aren't stripped out of a full text search if the search phrase is a quoted literal. Thus, my search for "time out" should look for the full phrase "time out", and not just the word "time."

    Does anybody know why SQL Server is removing my noise word from the phrase match?

  • April 9, 2010 at 6:56 pm

    #1149446

    I am experiencing the same issue.

    I am searching for "Masking Tape" and it is returning a lot of rows when it should be returning only 1 row.

    Has anyone found a solution to this?

    Thanks

    Gary

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