Re: Why our counters need to be time-based WAS: WIP: cross column correlation ... - Mailing list pgsql-hackers

On 2/28/11 10:24 AM, Robert Haas wrote:
> On Mon, Feb 28, 2011 at 1:04 PM, Josh Berkus <josh@agliodbs.com> wrote:
>> On the other hand, anything which increases the size of pg_statistic
>> would be a nightmare.
> 
> Hmm?

Like replacing each statistic with a series of time-based buckets, which
would then increase the size of the table by 5X to 10X.  That was the
first solution I thought of, and rejected.

--                                  -- Josh Berkus                                    PostgreSQL Experts Inc.
                        http://www.pgexperts.com