From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
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To: | "Jonah H(dot) Harris" <jonah(dot)harris(at)gmail(dot)com> |
Cc: | "Myron Scott" <lister(at)sacadia(dot)com>, pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: Support Parallel Query Execution in Executor |
Date: | 2006-04-09 19:11:03 |
Message-ID: | 12866.1144609863@sss.pgh.pa.us |
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Lists: | pgsql-hackers pgsql-patches |
"Jonah H. Harris" <jonah(dot)harris(at)gmail(dot)com> writes:
> The reader-like processes or "execution agents", whatever you want to
> call them, are limited to the postgres database only because they've
> been coded that way... but there's nothing that actually restricts
> them from being used for any database.
Oh? Anything much above the level of bufmgr is going to be dependent on
relcache, syscache, etc, and those are all definitely database-specific.
You can't just retarget a backend to operate in another database, at
least not without major changes in that infrastructure.
regards, tom lane
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