well, then I had to comment out WITH SCHEMABINDING, because try as I might, to do what the message wanted, it was still same error.

If you can show me how to use proper naming convention, as in point out where exactly problem is, I would appreciate.

See, I have added the schema dbo...

CREATE FUNCTION GetBench (@bench varchar(20))

RETURNS TABLE

--WITH SCHEMABINDING

AS RETURN

SELECT r.createdate

FROM Sandbox.dbo.Runs r

INNER JOIN Sandbox.dbo.runs_machines rm ON rm.runid = r.runid

INNER JOIN Sandbox.dbo.Machines m ON m.machineid = rm.machineid

WHERE m.NAME LIKE (@bench + '[0-9][0-9][0-9]')

AND r.createdate > dateadd(M, - 3, getdate());

ps. I recall now that schemabinding ensures that you can't modify underlyling tables without re-creating the dependent functions and views.