GetPathLocator (Transact-SQL)
Applies to: 
SQL Server
Returns the path locator ID value for the specified file or directory in a FileTable.
Syntax
GetPathLocator ( filenamespace_path )
Arguments
filenamespace_path
A namespace path in the FileTable. The namespace path is of type nvarchar(max).
When the database belongs to an Always On availability group, then the GetPathLocator function accepts the virtual network name (VNN) or the computer name.
Return types
hierarchyid
Remarks
For more information, see Work with directories and paths in FileTables.
Examples
You can use the GetPathLocator function when you're migrating files from a file server to a FileTable. In this scenario, you move the files into the FileTable, and then replace the original UNC path for each file with the FileTable UNC path. For a complete example, see Load Files into FileTables.