I wrote:
> +1 to this patch, in fact I think we could remove MAX_OCLASS altogether
> which would be very nice for switch purposes.
Oh, wait, I forgot that the patch itself introduces another reference to
MAX_OCLASS. I wonder though if we should get rid of that as an enum value
in favor of #define'ing a LAST_OCLASS macro referencing the last enum
item, or some other trick like that. It's certainly inconvenient in
event_trigger.c to have a phony member of the enum.
regards, tom lane