I'm in the process of converting some C functions written for another system
into C functions in a shared library that will be used by PostgreSQL, The
key function will be the state transition function for a user-defined
aggregate. From what I've read in the documentation:
1. the state value shoul
or global variables.
If 200 users want to evaluate my aggregate at the same time how does the
backend service them? I'm only asking this out of curiosity so I won't be
too disappointed if you don't reply (because the answer is too long and
complicated, etc.).
Thanks for your reply,
