Re: Add min and max execute statement time in pg_stat_statement

On 24/10/13 12:58, Peter Geoghegan wrote:
> On Wed, Oct 23, 2013 at 4:48 PM, Gavin Flower
> <GavinFlower@archidevsys.co.nz> wrote:
>> 32 int64 buckets is only 256 bytes, so a thousand histograms would be less
>> than a quarter of a MB.  Any machine that busy, would likely have many GB's
>> of RAM.  I have 32 GB on my development machine.
> Who wants to just run with a thousand entries? I have many small
> instances running on AWS where that actually is an appreciable amount
> of memory. Individually, any addition to pg_stat_statements shared
> memory use looks small, but that doesn't mean we want every possible
> thing. Futhermore, you're assuming that this is entirely a matter of
> how much memory we use out of how much is available, and I don't
> understand it that way.
>
Anyhow, I was suggesting the faclity be off by default - I see no point 
in enabling where people don't need it, even if the resource RAM, 
processor, whatever, were minimal.


Cheers,
Gavin