This seems like a very bad impl - at least for JDBC.

Why are the details of this access not hidden in the JDBC driver? The
column type is the only thing that a user should be concerned with.

Why would someone want to code proprietary Postgres code just to
access BLOBs?

The JDBC blob API is very good. Using either the BLOB/locator
interface or the getInputStream();

Oracle used to do a similar thing, and finally got with the program
and uses strict JDBC in their latest driver releases.


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