range of numeric values with unit in Solr

Asked Jul 03 '17 at 13:06

Active Jan 29 '18 at 08:25

Viewed 122 times

My problem is that i have documents containing a numeric value and a unit like this:

weight:100g

weight:1000kg

And i want to make querys like this:

weight:[5g TO 100KG]

Of course this doent work as easy as it sounds, the values are saved as strings. I did some research and came up with this https://dzone.com/articles/build-a-custom-solr-filter-to-handle-unit-conversions.

This worked out pretty well, i can search for: weight:100000g and get results containing weight:100kg, nice. But i cant figure out how to extend this, to make a range-search possible.

Thanks for help, Patrick

edited Jan 29 '18 at 08:25

asked Jul 03 '17 at 13:06

Nick

Is indexing the unit separately not an option? – 0xCAFEBABE Jul 04 '17 at 07:14
An option could be to have something like this: weight:[100, "kg"] Could this help? – Nick Jul 04 '17 at 10:13

range of numeric values with unit in Solr

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