Submitted by: Steven Rosenberg (rosenbsn)

When trying to call blob_lseek in a UDF fxn an exception is thrown and the UDF exits without crashing the server. When stepping through the code I noticed that only stream type blobs are allowed to use this function which explains why the exception is caught and thrown. However it would be very useful to be able to seek through the byte buffer in a blob instead of having to read all the way to the point where you want to start copying data.

I am not sure why this functionality is blocked but maybe a special condition can be put into the fun.cpp call when a UDF library is loaded. For example if a method that uses blobs is called the blob structure that is passed to the UDF function is given an address to a different callback fxn for blob_lseek or a flag can be added to the blob that allows a seek to occur correctly within the current blob_lseek callback fxn.

Any thoughts or suggestions?