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Improving Mindat.orgProperty Search - Lustre checks are AND instead of OR

20th Mar 2015 00:28 UTCBruce Kelley Expert

When I do a property search, I expect for the resulting matches to increase if I check more of the Lustre check boxes. Instead of treating those as an OR in the query, mindat is combining them in an AND fashion, so checking more boxes moves what should be 100% matches down the list.

For example, my search is as follows:

Colour: yellow

Lustre: Adamantine, Sub-Adamantine, Vitreous, Sub-Vitreous (It is sometimes hard to tell, so I try to hit all the possibilities)

Diapheny (I assume this is a misspelled Diaphaneity): Transparent, Translucent

Fracture: Irregular/Uneven

Crystal System: Isometric

All others left clear.

I expect for chlorargyrite and bromargyrite to be near the top of the list since they should match 100%, but I get no 100% matches at all and they are buried on the second page at 57%. The more Lustre boxes I check, the further down the list they fall. It is apparent that the Lustres are being treated individually as though they were separate properties in the query rather than combined into an OR clause. I have not tested it, but it is worth investigating if the other check box properties are treated the same way.

I think that treating these check boxes as an OR is more intuitive and probably what most users intend.
 
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