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
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!
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