(DB2) select from log file

Hi ,

I came across a DB2 query of the form :
select column1, column2 , column3 from xyz.log
I am confused , how columns can be selected from a log file?
Could DB experts help me please...

if this is possible , could you please give/show me a simple example explaining this...

I tried searching a lot on net for the same but couldn't get any clue...

so, experts pls help... :(

thanks..