Re: problem with max and not using index on PK - Mailing list pgsql-sql

At 11:12 AM 3/05/2003 +0200, pginfo wrote:
>I do not know the reason for not using index in this case.

PostgreSQL does not know that it can use the index, and the query example 
you gave is about the only case in which it can use the index. You can get 
it to use an index by rewriting it as:
    select IDS from t_sk10 order by IDS desc limit 1;

...nowhere near as nice, but it works.



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