Microsoft Desktop Search - CONTAINS not returning results on windows server 2008

问题

I am trying to search a remote fileshare (running windows server 2008 R2) for files that contain some text. If I try this, it works fine:

SELECT System.FileName
FROM RemoteServer.SystemIndex 
WHERE SCOPE='file://RemoteServer/FileShare'

and I get lots of results. But as soon as I try to search for some text I get no results:

SELECT System.FileName
FROM RemoteServer.SystemIndex 
WHERE SCOPE='file://RemoteServer/FileShare'
AND CONTAINS('a')

if I try it on my machine (Windows 7) it works fine:

SELECT FileName
FROM SystemIndex 
WHERE CONTAINS('a')

Here is my c# code that I'm using to search:

string connectionString = "Provider=Search.CollatorDSO;Extended Properties=\"Application=Windows\"";
using (OleDbConnection myOleDbConnection  = new OleDbConnection(connectionString))
{
    myOleDbConnection.Open();
    using (OleDbCommand myOleDbCommand  = new OleDbCommand(sql, myOleDbConnection))
    {
        using (myDataReader = myOleDbCommand.ExecuteReader())
        {
            if (!myDataReader.HasRows)
            {
                System.Console.WriteLine("Query returned 0 rows!");
            }
            else
            {
                // Process results here
            }
        }
    }
}

I have tried the following:

Rebuilt the index
Checked that the folder "FileShare" has been added on the server to be indexed
Checked the "File Types" tab, that the correct extensions are ticked, and that "Index Properties and File Contents" is selected for those extensions
Restarted the indexing service
Restarted the server itself

to no avail.

Any other suggestions? Frustrating as I'm 99% of the way there. This whole windows desktop search seems to be pretty unsupported, maybe I should bin it and use something else?

回答1:

Try declaring a nvarchar variable for the search word

DECLARE @SearchWord nvarchar(30) = 'a'

Then Modify your code to:

SELECT FileName

FROM SystemIndex

WHERE CONTAINS(@SearchWord)

This excerpt is from TechNet on CONTAINS See TechNet

*contains_search_condition* is nvarchar. An implicit conversion occurs when another character data type is used as input. In the following example, the @SearchWord variable, which is defined as varchar(30), causes an implicit conversion in the CONTAINS predicate.

回答2:

I meet the same problem. After serval days suffering trying, I found out this code that can run in windows server 2008 r2:

AND CONTAINS('keyword')
->
and System.Search.AutoSummary like '%keyword%'

来源：https://stackoverflow.com/questions/8827546/microsoft-desktop-search-contains-not-returning-results-on-windows-server-2008

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