Re: Proposal to provide the facility to set binary format output for specific OID's per session

Idea here makes sense and I've seen this brought up repeatedly on the JDBC lists.

Does the driver need to be aware that this SET command was executed? I'm wondering what happens if an end user executes this with an OID the driver does not actually know how to handle.

> + Oid *tmpOids = palloc(length+1);
> ...
> + tmpOids = repalloc(tmpOids, length+1);

These should be: sizeof(Oid) * (length + 1)

Also, I think you need to specify an explicit context via MemoryContextAlloc or the allocated memory will be in the default context and released at the end of the command.