I had a working FREETEXTTABLE query that searched for a @searchString. I now need to UNION that with another simple query that tries to parse the @searchString into an INT, and if it succeeds, filtering the table by looking for the row with PK equal to the parse @searchString.
Previously, I could easily JOIN the FREETEXTTABLE result to the table it was searching, order by the Rank, but only SELECT the columns of the original table that was searched.
Now that I am combining the unique results between the text search query and the query looking for the row with the search string as the key, I no longer have access to the Rank from the text search query.
How can I maintain the ordering by rank of the full text search, but place the query result looking for the row with the primary key (if it has a result) BEFORE the full text search results?
Have you tried just adding a constant to your union that puts your exact match of the PK on the top of the list? I don't remember off the top of my head what the freetext RANK column returns (0 thru 1000 i think), but something like this would work assuming that you just make your constant higher than the top of the rank.
DECLARE @id int IF ISNUMERIC(@myStringId) = 1 SET @id = CAST(@myStringId AS int) ELSE SET @id = 0 WITH MyFreetextCte as (SELECT [Rank], [Key] FROM FREETEXTTABLE(...) UNION SELECT 1001, (SELECT MyBaseTable.PK FROM MyBaseTable WHERE PK = @id)) SELECT * FROM MyFreetextCte JOIN MyBaseTable ON MyFreetextCte.[Key] = MyBaseTable.PK ORDER BY MyFreetextCte.Rank DESC
WIth a ton of help from Scott, this is what I have that finally works:
CREATE PROCEDURE dbo.testProcedure ( @searchPhrase nvarchar(500) ) AS DECLARE @id int SET @id = 0; BEGIN TRY SET @id = CAST(@id AS int) END TRY BEGIN CATCH END CATCH; -- at this point, @id will be the primary key if it is only digits -- otherwise it will default to zero (which is out of range of my identity PK) WITH ftsTable AS ( SELECT RANK, [KEY] FROM FREETEXTTABLE(sourceTable, *, @searchPhrase) UNION SELECT 1001, (SELECT sourceTableID FROM sourceTable WHERE sourceTableID = @id) ) SELECT sourceTable.* FROM ftsTable JOIN sourceTable ON ftsTable.[KEY] = sourceTable.sourceTableID ORDER BY ftsTable.RANK DESC