Обсуждение: Updating table, precautions?
Hi there,
We need to update a table of about 1.2GB (and about 900k rows) size. I was wondering if I should let the regular cron job take care of clean up (vacuum db Mon-Sat, vacuum full on Sun, followed by Reindex script), or manually do this on the table followed by the update.
This is what I used to find the table size, which probably doesn’t include the index size. Is there a way to find out size of indexes?
select relpages * 8192 as size_in_bytes from pg_class where relnamespace = (select oid from pg_namespace where nspname = 'public') and relname = 'r_itemcategory';
Thanks,
Anjan
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Anjan, > This is what I used to find the table size, which probably doesn't > include the index size. Is there a way to find out size of indexes? > > select relpages * 8192 as size_in_bytes from pg_class where relnamespace > = (select oid from pg_namespace where nspname = 'public') and relname = > 'r_itemcategory'; See the code in CVS in the "newsysviews" project in pgFoundry. Andrew coded up a nice pg_user_table_storage view which gives table, index and TOAST size. -- --Josh Josh Berkus Aglio Database Solutions San Francisco