I create custom document set with several custom column.When I run a full crawl in SP2013 farm. I now get two crawled properties for custom site column. e.g. If I have a site column called EmployeeFirstName and it is Text field,then I will have two crawled properties(OWS_EmployeeFirstName AND ows_q_TEXT_ EmployeeFirstName).
A managed property is automatically create called EmployeeFirstNameOWSTEXT.This managed property works fine for keyword search like ( EmployeeFirstNameOWSTEXT :Ben).This is documented here.
However , when I try to create my custom managed property at site level , it does not work. I try to map to both crawled properties individually as well as map them both. (OWS_EmployeeFirstName AND ows_q_TEXT_ EmployeeFirstName) and did another full crawl , but my selfcreated managed property does not work for keyword search like ( EmployeeFirstNameOWSTEXT :Ben).
Can anyone shine some light on this?