Re: Autovacuum in the backend

Bruce Momjian wrote:

>I am going to start working on it.  I am concerned it is a big job.
>
>I will post questions as I find them, and the one below is a good one.
>  
>

It is a big question, at least it's the main stumbling block I had, and 
it's the one that kept my work from being integrated into 8.0 (which 
side stepped the issue by using libpq to connect to the server to fire 
off commands).


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>
>Qingqing Zhou wrote:
>  
>
>>I just realized that the non-standard backend can't execute any SQL command.
>>If so, how would the background pg_autovacuum do "vacuum"? It could be
>>forked more like a standard backend, but this is obviously not a good idea,
>>since we don't know which database this process will sit on.
>>
>>A possible solution is that backgroud pg_autovacuum could fork another
>>process to connect to postmaster as an ordinary backend each time it feels
>>that a "vacuum" is needed.
>>