On Fri, Nov 23, 2007 at 11:35:16AM +0100, Niels Nes wrote:
> On Fri, Nov 23, 2007 at 11:07:29AM +0100, Marco Antonelli wrote:
> >
> > Hello everyone,
> > I am an Italian student, and I will work at MonetDB/SPARQL for my
> > master thesis starting from next January, in Amsterdam.
> Great. Welcome
> > Prof. Martin Kersten told to have a look at the code, in particular
> > the SQL->MAL translator. So I downloaded the code, and managed to
> > compile and install it correctly (on Linux). Then I opened the code
> > in Eclipse (do you use it too? do you use some better C IDE?) and
> Yes vim ;-)))
> > started to look at MonetDB5-server. Prof. Kersten told not to
> > worry... but that's impressive!
> > So where do you suggest me to start? Which c files and functions
> > first?
> Well MonetDB5-server is indeed big. For MonetDB/SPARQL its needed to
> study the 'bat algebra', ie src/modules/kernel/{bat5.mx,algebra.mx,...}
>
> The SQL-MAL translater is within the sql sources. You should for example
> have a look at sql/src/backends/monet5/sql_gencode. This shows
> which statements are needed.
>
> The easiest way too learn mal and sql's mapping too is too simple use
> sql. And in particular use the explain and debug features.
> ie start mserver5 --dbinit="include sql;"
> mclient -lsql
>
> for example use
>
> explain select * from tables;
See also
http://monetdb.cwi.nl/projects/monetdb/SQL/Documentation/EXPLAIN-Statement.html#EXPLAIN-Statement
Niels
>
> Niels
>
> > Thanks in advance and kind regards,
> > Marco Antonelli
>
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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: [EMAIL PROTECTED]
>
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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: [EMAIL PROTECTED]
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