On Monday, February 19, 2018 at 10:20:02 AM UTC-8, João Alexandre wrote:
> Just as a curiosity, all the methods you suggested worked, but I had to 
> enclose *score* with single quotes in the first one and also in 2nd and 
> 3rd methods, instead of using symbol. Otherwise it complains that the 
> column does not exist. Anyway, now I can see the index being used with 
> "Explain Analyse...", and also sorting it properly (considering numeric).

Yep, sorry, that was a bug in my example.  score should be a string and not 
an identifier in SQL, so it should be a string and not a symbol in ruby.


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