<gavinflo...@archidevsys.co.nz> wrote:
> More knowledgeable people are sure to reply in more detail!
> However, they would probably appreciate it if you can run with 9.4.5
> (the latest released version).  Running it with the beta of 9.5 would be
> a bonus!
> Note that I don't know enough to say for sure that later versions would
> make any difference in this case, but at least using later later
> versions would kill lots of Red Herrings!  :-)

Difference between minor versions does not matter in this case. I confirmed 
the cost calculation logic regarding this problem was not changed between 
Postgres 9.4.1 and 9.4.5.

I heard there are some performance improvements on 9.5. It might change 
something regarding this problem. so I will try these queries on 9.5!


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