> Mark Woodward wrote:
>> My question was based on an observation that ANALYZE and VACUUM are
>> nessisary, both for different reasons. The system or tools must be
>> able to detect substantial changes in the database and at least run
>> analyze if failing to do so would cause PostgreSQL to fail badly.
>
> Yes, that is what autovacuum does. It detects changes in the database
> and runs analyze if failing to do so would cause PostgreSQL to behave
> badly. I don't know why it's not turned on by default. You could
> argue about that. But I don't know what else you are looking for.
If that is the answer, then I agree with you, it should be on by default.
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