editing monetDB source code

Hannes Mühleisen Hannes.Muehleisen at cwi.nl
Tue Aug 12 09:04:05 CEST 2014


Hi Hina,

> On 12.08.2014, at 02:39, Hina Khan <h.khan3 at uq.edu.au> wrote:
> I am a PHD student and my research is related to data exploration. In my recent work I have proposed a new query processing technique using columnar data storage layer. For experiments I need to implement a new operator that works in between two “Select” operators. I wanted to know if there is any way that I can implement this new operator and add it to the source code of MonetDB and change its “Select” operator so that it calls the new operator I have inserted. So in short my question is “ Is there any way to edit the source code of MonetDB”.
If you are looking for the select code, look in gdk/gdk_select.c . If you want to change the query plans to use another operator, the common trick for this is to use an ‘optimizer’ or change the SQL->MAL code generation. However, as a general word of caution, do not expect this to be trivial.

Best,

Hannes




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