ng more expensive than integer math.
>
>-j
>
> --
> Jay A. Kreibich < J A Y @ K R E I B I.C H >
>
> "Intelligence is like underwear: it is important that you have it,
> but showing it to the wrong people has the tendency to make the
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Gaurav Vyas
Graduate Research Assistant, Transportation Engineering
University of Texas at Austin
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Hi,
I am gonna try first creating unique index (hid, pid). It will take a bit
of time and will keep you posted with the result.
Thanks a lot
Gaurav
On Thu, Nov 24, 2011 at 2:08 AM, Simon Slavin wrote:
>
> On 24 Nov 2011, at 7:54am, Gaurav Vyas wrote:
>
> > when I do typeof
> And if it is... what's its selectivity?
>
> What 's the query plan?
>
>
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Gaurav Vyas
G
2011, at 7:45am, Gaurav Vyas wrote:
>
> > I am trying to get a chunk of rows from a table which has 16 million
> rows.
> > The table is indexed. I am passing the query as "SELECT * FROM persons
> > WHERE hid = 5;" and it takes a few minutes to get me the results. Ca
I am trying to get a chunk of rows from a table which has 16 million rows.
The table is indexed. I am passing the query as "SELECT * FROM persons
WHERE hid = 5;" and it takes a few minutes to get me the results. Can
anyone suggest how to make it faster?
Gaurav
_
t; does ? Can you try turning optimization off entirely, or to its lowest
> setting ?
>
> Simon.
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G
Here is the situation. I am using a cluster on which you can use MPI to
split the processing time on to different processors. I was using
PostgreSQL but since the data was on different server than the one I am
running the code, it was slowing down the simulation due to connection
overhead on Postgr
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