Conditionally create a fulltext catalog in one line of SQL (from an installer)

Question

I'm building an installer using WiX (not keyworded since WiX is not the problem here) that shall create a fulltext index for a SQL Server Express 2005 Advanced Services database.

Up to now I use the SQL

 CREATE FULLTEXT CATALOG Foobar in path 'c:\Whereever'

Now, the installer will not remove the database on uninstall as it may contain valuable user data. Now when I update the software it will stumble over the creation of the already existing fulltext index. (Abort in installer, as it can't run that line of SQL)

What I want to do is run the line conditionally if the fulltext index does not already exist. I'd expect something like

IF NOT EXISTS(SELECT * from sys.??????? WHERE name = 'Foobar')
    CREATE FULLTEXT CATALOG Foobar in path 'c:\Whereever'

(I just saw something similar to what I need here on stackoverflow)

But where (and how) can I find out whether the index is recorded in a sys table (and which table is it?)

Answer 1

sys.fulltext_catalogs

IF EXISTS (SELECT 1 FROM sys.fulltext_catalogs
           WHERE name = 'foobar') ....