Re: [HACKERS] Hint Bits and Write I/O

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От Gregory Stark
Тема Re: [HACKERS] Hint Bits and Write I/O
Дата
Msg-id 87lk0rq7is.fsf@oxford.xeocode.com
обсуждение исходный текст
Ответ на Re: [HACKERS] Hint Bits and Write I/O  (Alvaro Herrera <alvherre@commandprompt.com>)
Ответы Re: [HACKERS] Hint Bits and Write I/O
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"Alvaro Herrera" <alvherre@commandprompt.com> writes:

> If only VACUUM is going to set "flexible" to off, maybe it's better to
> leave the APIs as they are and have a global that's set by VACUUM only
> (and reset in a PG_CATCH block).

Ugh. Perhaps it would be simpler to have a wrapper function HTSV() macro which
passes flexible=true to HTSV_internal(). Then vacuum can call HTSV_internal().

I'm not sure what the performance tradeoff is between having an extra argument
to HTSV and having HTSV check a global which messes with optimizations.


--
  Gregory Stark
  EnterpriseDB          http://www.enterprisedb.com
  Ask me about EnterpriseDB's RemoteDBA services!

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