hi i have doubt on above qustion
@nagar16730416
The question was also asked before, with some suggestions given in Reading BLOB data from pzPVStream column with Java
there is a good discussion Understanding Pega Blob and UDF and CustomerData (non-blob) vs PegaDATA (blob)
The same Pega employee also answered the question in How to read pzPVStream (BLOB) in PostgreSQL