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Yeah, this is probably the reason and the author even elaborates on this in the sentences following the bit quoted by cldellow:

> Even though the data says hstore, knowing that posts will be seen by more and more people over time, I might choose the HLL solution for an actual implementation. It's far less likely to pose a bloated row problem, [...]

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Just posting here too, but yup this is exactly what I was trying to convey.

Hstore might have been the fastest but the way I am using it or the scales the use case could scale to might not work out.

Bigger benchmarks could have been done! Maybe a multi part post would have been better so I could split apart methodology and results/blabbering about approach!

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