Re: [Monetdb-developers] about Using Mal

18 Aug 2010


      On Wed, Aug 18, 2010 at 04:04:37PM +0800, kun ren wrote:
...
Yes, when I run successfully! But why I must running sql.init() and
then can run mal code?
Best regards!
The sql.init() initializes the sql catalog. The code coming from explain
assumes these are there. 

Niels
...
2010/8/18 Niels Nes 
On Wed, Aug 18, 2010 at 03:53:49PM +0800, kun ren wrote:
    > Thanks !
    > But when I use mclient -lmsql, but it has a error, the error is
    > :language option needs to be one of sql, mil, mal, or xquery?
sql (and msql) start the interpreter with a 'sql' context.
    You can create this by running sql.init();
After that the mal code should run.
Niels
    >
    > Best regards!
    >
    > 2010/8/18 Fabian Groffen 
    >
    >     On 18-08-2010 15:21:30 +0800, kun ren wrote:
    >     > 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.
    >
    >     use mclient -lmsql, that should do the trick.
    >
    >    
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--
    Niels Nes, Centrum Wiskunde & Informatica (CWI)
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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