Is the field a BLOB field (untyped data of indeterminate size).
Source position: db.pas line 424
| public class function TField.IsBlob: Boolean; virtual; | 
True if the field is a BLOB field, False otherwise.
IsBlob returns True if the field is one of the blob field types. The TField implementation returns false. Only one of the blob-type field classes override this function and let it return True.
None.
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 | Is the field a blob field. |