From: | Benjamin Arai <me(at)benjaminarai(dot)com> |
---|---|
To: | "A(dot) Kretschmer" <andreas(dot)kretschmer(at)schollglas(dot)com> |
Cc: | pgsql-general(at)postgresql(dot)org |
Subject: | Re: COPY command details |
Date: | 2007-03-29 17:02:49 |
Message-ID: | F1113A3D-DF0E-44EB-80DF-7D09A19DF1E1@benjaminarai.com |
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Thread: | |
Lists: | pgsql-general |
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.
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)
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