Re: Optimizing huge inserts/copy's

I am experimenting with this too.  If I have any
indexes at all, the copy's get VERY SLOW as the table
gets big.  Delete ALL your indexes, do your copy's,
and then create your indexes again.

Good luck.
--- Jie Liang <jliang@ipinc.com> wrote:
> Hi, there,
> 
> I tried different  ways,  include vaccum table , 
> ensure index works, it
> still is as slow as ~100rows per minute.
> 
> 
> Stephan Szabo wrote:
> 
> > On Tue, 29 Aug 2000, Jie Liang wrote:
> >
> > > Hi, there,
> > >
> > > 1. use copy ... from '.....';
> > > 2. write a PL/pgSQL function and pass multiple
> records as an array.
> > >
> > > However, if your table have a foreign key
> constraint, it cannot be speed
> > > up,
> > >
> > > I have same question as you, my table invloving
> 9-13 million rows, I
> > > don't
> > > know how can I add a foreign key them also?
> >
> > I haven't tried it on really large tables, but
> does it turn out faster to
> > use ALTER TABLE ADD CONSTRAINT to add the foreign
> key constraint after the
> > data is loaded and the indexes are created?
> 
> --
> Jie LIANG
> 
> Internet Products Inc.
> 
> 10350 Science Center Drive
> Suite 100, San Diego, CA 92121
> Office:(858)320-4873
> 
> jliang@ipinc.com
> www.ipinc.com
> 
> 
> 


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