OK. the error was that: postgress didn't recognize which was the
NULLstring, because the format file was: value1*value2**value4, where the
delimiter is: * .
I learnd the default NULL string is '\N', but as you told me, you can
specify this in the command definition.
Thanks Michael.
From: Michael Fuhr <[EMAIL PROTECTED]>
To: Enrique Sánchez <[EMAIL PROTECTED]>
CC: [email protected]
Subject: Re: [GENERAL] NULL TIMESTAM problem
Date: Thu, 9 Mar 2006 12:26:10 -0700
On Thu, Mar 09, 2006 at 12:49:14PM -0600, Enrique Sánchez wrote:
> I nedd to fill a database table x from a file With the COPY command an
the
> delimiter '*'.
> This table has a timestamp null column (I declared like: ' birthday
> timestamp NULL' ).
>
> But when I try to insert NULL values(specified in the file), postgres
throw
> an error.
What's the error? How are the NULL values specified in the file?
> I don't know how can I specify this NULL value wkthout an '\N'
character.
See the COPY documentation -- COPY has a NULL option that allows
you to specify what string should be interpreted as NULL. Recent
versions also have a CSV option that interprets empty strings as
NULL.
http://www.postgresql.org/docs/8.1/interactive/sql-copy.html
(Use the documentation for whatever version you're running.)
--
Michael Fuhr
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