From: | Nailah Ogeer <ogeer(at)cs(dot)queensu(dot)ca> |
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To: | Neil Conway <neilc(at)samurai(dot)com> |
Cc: | <pgsql-hackers(at)postgresql(dot)org>, <pgsql-general(at)postgresql(dot)org> |
Subject: | Re: Postgres hash tables |
Date: | 2003-07-24 19:21:41 |
Message-ID: | Pine.SOL.4.33.0307241514060.9356-100000@innovate |
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Thread: | |
Lists: | pgsql-general pgsql-hackers |
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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