Re: [SQL] what is "cost"?

On Fri, 23 Apr 1999, Bruce Momjian wrote:

> > 
> > Hi All,
> > 
> > I just did an explain and was wondering what is meant by cost.  I just 
> > got a 72.983 cost from a query I found not working.  Any info or pointers 
> > would be appreciated.
> 
> Just added to explain manual page:
> 
>     The cost value is only meaningful to the optimizer in comparing various
>     query plans.
> 
I got the 72.98 on this table while doing a simple "select * from 
publication" meanwhile I got nothing higher than 4 on any other table. Is this 
indicative of a problem?

-Greg