Sounds like semi-structured data handling. For this tasks hstore would be
ideal, IMO.
2010/11/12 John R Pierce <pierce(at)hogranch(dot)com>
> I looked up the OP's domain. They develop medical research data analysis
> software.
>
>
> That sort of software and the kinds of data analysis they do tortures SQL
> databases. These 1600+ element rows are likely very sparse.
>
>
>
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// Dmitriy.