On Tue, Aug 21, 2012 at 12:16:11PM +0900, Tatsuo Ishii wrote:
> I found this in https://wiki.postgresql.org/wiki/Todo :
>
> Improve ability to display optimizer analysis using OPTIMIZER_DEBUG
>
> What does this actually mean?
>
> Add GUC switch to enable optimizer debug on/off?
> More fancy/useful info should be printed?
> If so, what kind of information is required?
Well, right now, OPTIMIZER_DEBUG lets you see what plans were considered
and removed. I was thinking that information should be available
without a special compiled binary.
-- Bruce Momjian <bruce@momjian.us> http://momjian.us EnterpriseDB
http://enterprisedb.com
+ It's impossible for everything to be true. +