[Monetdb-developers] Start studying MonetDB code
Hello everyone, I am an Italian student, and I will work at MonetDB/SPARQL for my master thesis starting from next January, in Amsterdam. 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 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? Thanks in advance and kind regards, Marco Antonelli
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; 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: Niels.Nes@cwi.nl
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.h... Niels
Niels
Thanks in advance and kind regards, Marco Antonelli
------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Monetdb-developers mailing list Monetdb-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/monetdb-developers
--
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
------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Monetdb-developers mailing list Monetdb-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/monetdb-developers
-- 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
participants (2)
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Marco Antonelli -
Niels Nes