Sorting on null text fields

[jda]

Are blogs automatically nullable? I tried setting the 
EVFlag.fNullable for a blob and got an error. The latest RB docs 
(updated today, p. 48) are ambiguous.

Here is the definition:

CreateBLOBField(inName as string, inSegmentSize as integer) as VBLOB

But here is the example:

fldAge = tblPerson.CreateBLOBField("notesStyle",  256, 
EVFlags.fNullable + EVFlags.fIndexed )

Jon