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Re: Do table-level CHECK constraints affect the query optimizer?

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On 6/29/21 12:46 PM, Tom Lane wrote:
Ron <ronljohnsonjr@xxxxxxxxx> writes:
On 6/29/21 11:42 AM, Tom Lane wrote:
If there's a significant difference in relallvisible fractions, that
would point to something different in your VACUUM housekeeping on
the two systems.
Prod is brand new.  Loaded on Saturday; we saw this problem on Sunday during
pre-acceptance.  Thus, while running ANALYZE was top of the list of Things
To Do, running VACUUM was low.
Is that a mistaken belief?
ANALYZE won't update relallvisible AFAIR, while VACUUM will.
So if you are depending on lots of IOS, you need a round of
vacuuming.

What's an IOS?

--
Angular momentum makes the world go 'round.





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