Used for fetching all InterBase BLOB values when they are explicitly requested.
property DeferredBlobRead: boolean default False;
If the DeferredBlobRead property is set to True, all InterBase BLOB values are only fetched when they are explicitly requested. Otherwise entire record set with any BLOB values is returned when dataset is opened. Whether BLOB values are cached locally to be reused later or not is controlled by CacheBlobs option.