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Re: Optimizer issue -- bad query plan? - Mailing list pgsql-general

From	Moshe Jacobson
Subject	Re: Optimizer issue -- bad query plan?
Date	June 5, 2014 22:55:11
Msg-id	CAJ4CxL=7b-AdkAQXDQHhKQ6yENfEoS+3YFDs7M+PQ2TAODaRPw@mail.gmail.com Whole thread Raw
In response to	Re: Optimizer issue -- bad query plan? (David G Johnston <david.g.johnston@gmail.com>)
Responses	Re: Optimizer issue -- bad query plan?
List	pgsql-general

On Thu, Jun 5, 2014 at 6:38 PM, David G Johnston <david.g.johnston@gmail.com> wrote:

Without definitions of all the tables involved, as well as knowing what
version you are running this query on, it is impossible to explain why.

I'm running 9.3.4.

https://wiki.postgresql.org/wiki/What's_new_in_PostgreSQL_9.0
Read the section named "Join Removal".

Right, I'm aware of this feature -- I'm just curious why it's not working!

Moshe Jacobson

Manager of Systems Engineering, Nead Werx Inc.

2323 Cumberland Parkway · Suite 201 · Atlanta, GA 30339

"Quality is not an act, it is a habit." -- Aristotle

From: Keith Fiske
Date: 05 June 2014, 22:49:29
Subject: Re: Merge a sharded master into a single read-only slave

From: Tom Lane
Date: 05 June 2014, 23:19:45
Subject: Re: Optimizer issue -- bad query plan?