Hi, The offical documentation is https://www.wikidata.org/wiki/Help:Data_type#quantity but indeed there is no indication of the limit.
>From what I tested, apparently you can enter any number which is less than 127 characters long (https://www.wikidata.org/wiki/Q4115189#P1104). Cheers, ~nicolas Le lun. 7 oct. 2019 à 08:58, John Erling Blad <[email protected]> a écrit : > Is there any documentation of the number format used by the quantity type? > Bumped into this and had to implement the BCmath extension to handle the > number. The reason why I did it (except it was fun) is to handle some weird > unit conversions. By inspection I found there were numbers at Wikidata that > clearly could not be implemented as doubles, and testing a little I found > that this had to be implemented as some kind of big numbers. Lua does not > have big numbers, and using the numbers from quantity as a plain number > type is a coming disaster. > > So, is there any documentation for the quantity format anywhere? I have > not found anything. I posted a task about it, and please add info there if > you know where some info can be found. I suspect the format just happen to > be the same as BC, and nobody really checked if the format was compatible, > or…? > > The BCmath extension can be found at > - https://www.mediawiki.org/wiki/Extension:BCmath > - https://github.com/jeblad/BCmath > > There is a Vagrant role if anyone likes to test it out. > _______________________________________________ > Wikidata mailing list > [email protected] > https://lists.wikimedia.org/mailman/listinfo/wikidata >
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