Martin.Kersten@cwi.nl wrote:
darabi@web.de wrote:
Hello,
how is it possible to access in a MAL client session (mclient -l mal) the BATs of tables which were created previously in sql?
You can't, because the mapping of SQL to BATs is maintained in the SQL private catalog. Also, each column in SQL has multiple bats.
Is it not recommended or not at all possible? not recommended.
Because what I am up to could be implemented on top of sql (at least to rapidly get off the ground in the beginning).
I would like to have something like this for an OODB schema:
- one bat for each class - one bat for each attribute (maybe also a persistent reversed bat sorted on the value to be able to speed up equality and range queries) - one bat for each relation between classes - one bat for each collection which contains attributes (and not references)
And if I interpret the contents of sql_catalog correctly, much of it is already present there. Indeed, but when sql is running its in control of the sql_catalog bat (through
On Sat, Oct 13, 2007 at 02:36:45PM +0200, darabi@web.de wrote: the gdk_logger code). This means it assumes its the only one accessint it. Niels
If it is technically impossible, then I would have to duplicate some of that.
Kambiz
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-- Niels Nes, Centre for Mathematics and Computer Science (CWI) Kruislaan 413, 1098 SJ Amsterdam, The Netherlands room C0.02, phone ++31 20 592-4098, fax ++31 20 592-4312 url: http://www.cwi.nl/~niels e-mail: Niels.Nes@cwi.nl