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QUERY: autovacuum: VACUUM ANALYZE table versus QUERY: autovacuum: VACUUM table

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Hello list,
I am trying to find out if the naming convention from autovacuum does what its command line equivalent does, or at least what I think it does.

QUERY: autovacuum: VACUUM ANALYZE table versus autovacuum: VACUUM ANALYZE table.

I have been getting my autovacuum tuned and I have the settings where I see 2 types of queries running now and doing their jobs. I know vacuum alone will mark dead tuples ready for use again, and analyze alone will update statistics for the query planner.

1. QUERY: autovacuum: VACUUM ANALYZE table
2. QUERY: autovacuum: VACUUM table

My question is do we need both?  Why wouldn't QUERY: autovacuum: VACUUM ANALYZE table perform both, I always thought when issuing VACUUM ANALYZE table it would do both. Why wouldn't we just want vacuum analyze to run?
Or is QUERY: autovacuum: VACUUM ANALYZE table different from the command line and it only analyzes and QUERY: autovacuum: VACUUM table only vacuums which would make sense.


Thanks as always and hope this is clear.


Jason Ralph

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