Re: Planner debug views - Mailing list pgsql-hackers

From Qingqing Zhou
Subject Re: Planner debug views
Date
Msg-id CAJjS0u1P1LpDHCDO2PK95GEpyW3Q2wYfB=h1Nv-N18ktxxB=BA@mail.gmail.com
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In response to Planner debug views  (Qingqing Zhou <zhouqq.postgres@gmail.com>)
List pgsql-hackers
On Tue, Jul 21, 2015 at 5:15 PM, Qingqing Zhou
<zhouqq.postgres@gmail.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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