Yes,I know expain. I mean I use MAL interface, write MAL instrction to implement it. I write the mal instrctions generated by the expain select * from t1,but it has errors.so I ask what mal when I use MAL interface ,not sql interface.

2010/8/18 Niels Nes <Niels.Nes@cwi.nl>
On Wed, Aug 18, 2010 at 03:05:11PM +0800, kun ren wrote:
> Dear all,
>      Recently,I am using MAL,using mclient -l mal command, If I use
> sql, I write a SQL: select * from t1; while t1 has two column c1 and
> c2,type is int. I want to ask what the corresponding MAL of this sql,
> if I us mclient -l mal ,what mal will I will use to implement the
> select * from t1

run

explain select * from t1;

that will show you the mal code.

Niels
> Best regards!

> ------------------------------------------------------------------------------
> This SF.net email is sponsored by
>
> Make an app they can't live without
> Enter the BlackBerry Developer Challenge
> http://p.sf.net/sfu/RIM-dev2dev

> _______________________________________________
> Monetdb-developers mailing list
> Monetdb-developers@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/monetdb-developers


--
Niels Nes, Centrum Wiskunde & Informatica (CWI)
Science Park 123, 1098 XG Amsterdam, The Netherlands
room L3.14,  phone ++31 20 592-4098     sip:4098@sip.cwi.nl
url: http://www.cwi.nl/~niels   e-mail: Niels.Nes@cwi.nl