Thursday May 21, 2009

ordering index in OpenDS

An ordering index is used for searches involving ">=" or "<=" operators. An attribute value is normalized using attribute's ordering matching rule to generate the key. Since the normalization techniques is same for both equality and ordering matching rules, both the indexes end up having the same data. This is something which can be avoided by new design which is already in place for extensible indexes. Hopefully, OpenDS 3.0 will avoid using the separate ordering indexes when not needed. 

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This is the blog of a software engineer, specialized in identity management. Kunal Sinha works in Directory Services Engineering (OpenDS) team from Austin,Texas.

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