Re: COPY command details

Benjamin Arai wrote:
> So, is there a way to defer the index updating until a later period
> of time. More specifically, I would like to do several COPIES to a
> running database, then afterward force a update on the index via a
> vacuum or something similar.

Sure, drop the index, do the COPY, and then recreate the index. That is
done often.

---------------------------------------------------------------------------

>
> Benjamin
>
> On Mar 29, 2007, at 1:03 AM, A. Kretschmer wrote:
>
> > am Thu, dem 29.03.2007, um 0:13:09 -0700 mailte Benjamin Arai
> > folgendes:
> >> Hi,
> >>
> >> If I have a PostgreSQL table with records and logical indexes already
> >> created, if I use COPY to load additional data, does the COPY update
> >> the indexes during, after, or not at all?
> >
> > after, i think.
> >
> > test=# create table foo (id int primary key, name text);
> > NOTICE: CREATE TABLE / PRIMARY KEY will create implicit index
> > "foo_pkey" for table "foo"
> > CREATE TABLE
> > test=*# copy foo from stdin;
> > Enter data to be copied followed by a newline.
> > End with a backslash and a period on a line by itself.
> >>> 1 a
> >>> 2 b
> >>> 2 c
> >>> \.
> > ERROR: duplicate key violates unique constraint "foo_pkey"
> > CONTEXT: COPY foo, line 3: "2 c"
> > test=*#
> >
> >
> > I can type the wrong key and the error occurs later with the finaly \.
> >
> >
> > Andreas
> > --
> > Andreas Kretschmer
> > Kontakt: Heynitz: 035242/47150, D1: 0160/7141639 (mehr: -> Header)
> > GnuPG-ID: 0x3FFF606C, privat 0x7F4584DA http://wwwkeys.de.pgp.net
> >
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