So what are we going to do about this problem?
The pg_settings view does not have enough information to determine it generically. (It only says 'string', not 'list'...)
I propose that we modify pg_dumpall to hard-code the set of list-type GUC variables for each backend version.
The current (CVS) list of such GUCs is:
* DateStyle * preload_libraries * search_path * log_destination * custom_variable_classes (probably doesn't need to be worried about)
Shall I go ahead and do this?
Oh, and we'll need to fix the pg_settings view for the future, because otherwise it will make life difficult for GUI writies (like me)...
Chris
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