| From: | Qingqing Zhou <zhouqq(dot)postgres(at)gmail(dot)com> |
|---|---|
| To: | pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Planner debug views |
| Date: | 2015-07-23 19:27:02 |
| Message-ID: | CAJjS0u1P1LpDHCDO2PK95GEpyW3Q2wYfB=h1Nv-N18ktxxB=BA@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Tue, Jul 21, 2015 at 5:15 PM, Qingqing Zhou
<zhouqq(dot)postgres(at)gmail(dot)com> wrote:
> Here is a proposal introducing some debugging infrastructure into the
> core. The basic idea is to allow us to query the planner search space.
> To so do, we can dump related information to csv files and use foreign
> table to query them.
FWIW, this is to tackle(+) optimizer TODO item:
https://wiki.postgresql.org/wiki/Todo#Optimizer_.2F_Executor
Improve ability to display optimizer analysis using OPTIMIZER_DEBUG
Regards,
Qingqing
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