[Monetdb-developers] X100

Joel Reymont joelr1 at gmail.com
Tue Aug 2 17:06:58 CEST 2005


Marcin,

On Aug 2, 2005, at 4:58 PM, Marcin Zukowski wrote:

> The Scan operator in one next() call delivers vectors from all the  
> relevant _columns_ (we don't have BATs anymore). Naturally, the  
> scans are buffered so the I/O granularity is much larger than a  
> vector size.

The X100 paper mentions that the engine is based on top of MonetDB.  
Are you still using BATs at the lowest level or did you move to a  
different way of storing data?

Could you elaborate on the new disk structure if you are no longer  
using BATs?

     Thanks, Joel

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