Postgres Pro
Downloads
Home   >   mailing lists

Re: Do we need so many hint bits? - Mailing list pgsql-hackers

From Jeff Davis
Subject Re: Do we need so many hint bits?
Date
Msg-id 1353350797.10198.134.camel@jdavis-laptop
Whole thread Raw
In response to Re: Do we need so many hint bits?  (Atri Sharma <atri.jiit@gmail.com>)
Responses Re: Do we need so many hint bits?  (Andres Freund <andres@2ndquadrant.com>)
Re: Do we need so many hint bits?  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-hackers
Tree view 
On Tue, 2012-11-20 at 00:13 +0530, Atri Sharma wrote:

> My mistake...I thought we were more concerned about the cost of
> locking.
> 
> I agree, locking many data pages simultaneously could be hazardous.
> 
> This requires more thought.Maybe removing PD_ALL_VISIBLE isnt such a
> great idea after all...

As I said elsewhere in the thread, I'm not planning to introduce any
additional locking. There is already precedent in IndexOnlyNext.

Regards,Jeff Davis

pgsql-hackers by date:

Previous
From: Atri Sharma
Date:
Subject: Re: Do we need so many hint bits?
Next
From: Andres Freund
Date:
Subject: Re: Do we need so many hint bits?