> 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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