Re: [PERFORM] Good News re count(*) in 8.1

2006-02-23 Thread Jim C. Nasby
On Thu, Feb 23, 2006 at 12:54:52PM -0600, Kevin Grittner wrote: > >>> On Wed, Feb 22, 2006 at 9:52 pm, in message > <[EMAIL PROTECTED]>, Greg Stark <[EMAIL PROTECTED]> wrote: > > > > "Kevin Grittner" <[EMAIL PROTECTED]> writes: > > > >> There have been several times that I have run a SELECT COU

Re: [PERFORM] Good News re count(*) in 8.1

2006-02-23 Thread Kevin Grittner
>>> On Wed, Feb 22, 2006 at 9:52 pm, in message <[EMAIL PROTECTED]>, Greg Stark <[EMAIL PROTECTED]> wrote: > "Kevin Grittner" <[EMAIL PROTECTED]> writes: > >> There have been several times that I have run a SELECT COUNT(*) on an entire >> table on all central machines. On identical hardware, wi

Re: [PERFORM] Good News re count(*) in 8.1

2006-02-22 Thread Greg Stark
"Kevin Grittner" <[EMAIL PROTECTED]> writes: > There have been several times that I have run a SELECT COUNT(*) on an entire > table on all central machines. On identical hardware, with identical data, > and equivalent query loads, the PostgreSQL databases have responded with a > count in 50% to 7

Re: [PERFORM] Good News re count(*) in 8.1

2006-02-22 Thread Tom Lane
"Kevin Grittner" <[EMAIL PROTECTED]> writes: > We are replicating data from 72 source databases, each with the > official copy of a subset of the data, to four identical consolidated > databases, spread to separate locations, to serve our web site and other > organization-wide needs. Currently, tw

Re: [PERFORM] Good News re count(*) in 8.1

2006-02-22 Thread Luke Lonergan
Kevin, On 2/22/06 8:57 AM, "Kevin Grittner" <[EMAIL PROTECTED]> wrote: > I hesitate to raise this issue again, but I've noticed something which I > thought might be worth mentioning. I've never thought the performance > of count(*) on a table was a significant issue, but I'm prepared to say > th

[PERFORM] Good News re count(*) in 8.1

2006-02-22 Thread Kevin Grittner
I hesitate to raise this issue again, but I've noticed something which I thought might be worth mentioning. I've never thought the performance of count(*) on a table was a significant issue, but I'm prepared to say that -- for me, at least -- it is officially and totally a NON-issue. We are repli