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From Erick Erickson <>
Subject Re: BitSet field type in solr
Date Thu, 02 Aug 2012 12:37:57 GMT
There has been talk of a bit fieldType, but I don't think it has
ever been implemented. I don't think you need a custom
FieldType, there already is a BinaryType (although I confess
I haven't used it, so check first <G>).

>From there, I think your custom Similarity is the way to go...


On Tue, Jul 31, 2012 at 1:10 PM, Dazhi Jiao <> wrote:
> Hi,
> I am new to solr and I apologize if I am not using the right terms in
> my question. I want to use solr to store and search for some chemistry
> data. For each molecule (represented as a string), I can convert it
> into a bitset representation (fixed length). To search for the
> molecule, the similarity is based on bits comparison. Since there will
> be large amount of data, I want to make the search faster so I imagine
> I need to index these bitsets. I want to write a custom FieldType, a
> custom Similarity. The FieldType will automatically convert the text
> representation of the molecule into a BitSet and store/index it. So my
> question is, is this possible, or is there anything that already in
> solr that can store/index bitsets?
> Thank you!
> Dazhi

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