On 7 Aug 2011, at 10:07pm, P Kishor wrote:

> I will let you heavyweights duke it out, but re. the above point,
> SQLite (and more databases) have a per row system overhead that can
> very quickly overweight the actual data if the data are too granular
> with each row storing just a tiny amount. For example, the overhead
> for the cells in a raster dataset, if stored one per row, will quickly
> surpass the size of the actual data.

You're quite right.  If someone was going to write that functionality into a 
SQLite app in real life they'd probably use 'LIKE' or 'GLOB' and store all the 
possibilities in one row.

Simon.
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