I am looking for a way to define a global variable in CustomScan plugin that is shared between different psql backends. Is it possible without using shared memory? Does postgresql implement any function that facilitates this?
I am looking for a way to define a global variable in CustomScan plugin that is shared between different psql backends. Is it possible without using shared memory? Does postgresql implement any function that facilitates this?
No - there is nothing like this. You need to use shared memory.