Sorry to bother you again but i am having a real hard time getting stats from the relation. What i have is a shared memory linked list of relfilenodes. I simply want to get the stats of all these relations and add them up. I was using pgstat_fetch_stat_tabentry(relid) as an sql statement and this worked beautifully. Now i am trying to do it at every checkpoint before flushing all relations. BUt the above fetch function does not work. So then i tried getting the stat info from the relation itself but am having problems with the RelationNodeCacheGetRelation function which always seems to give me null. Can you tell me how i can get this info in the backend??? I can see the relation in my list and there is a matching relation in pg_class. I just need to get the relationdesc back
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