I want to write a contrib module that exports a couple of functions that PLs (that don't natively support this) can use to set/get session-local variables. I have a couple of questions: - Can I simply use a global variable for my hash? Am I correct in thinking that stored procedures and functions will be executed in the postgres process assigned to the connection that invokes them, and therefore each will have its own copy of the global variable? - How can I get a session-scoped MemoryContext to allocate nodes out of? Thanks, Nick Johnson
