The Art of SQL Server FILESTREAM - Red Gate Software

Chapter 3: Accessing FILESTREAM Data from Client Applications;WITH cte AS (SELECTItemNumber,ItemImageFROM Items)SELECTItemNumber,ItemImage.PathName()FROM cte/*-- OutputMsg 5539, Level 16, State 1, Line 1The ROWGUIDCOL column associated with the FILESTREAM being used is not visible*/Listing 3-32:Using a CTE to show that the ROWGUIDCOL must be visible to the PathName() query.Again, because the CTE does not include the ROWGUIDCOL column, a call to thePathName() on any of the columns will generate an error. For the same reason, the queryin Listing 3-33 will also fail.SELECTItemNumber,ItemImage.PathName()FROM (SELECTItemNumber,ItemImageFROM Items) a/*-- OutputMsg 5539, Level 16, State 1, Line 1The ROWGUIDCOL column associated with the FILESTREAM being used is not visiblewhere method PathName is called.*/Listing 3-33:The ROWGUIDCOL must be visible to the PathName() query.The SELECT statement does not include the ROWGUIDCOL column, so the PathName()query generates an error.122