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From: Laurenz Albe <[email protected]>
To: [email protected]
To: [email protected]
Subject: Re: COPY manual is ambiguous about column list
Date: Thu, 28 Nov 2019 10:47:10 +0100
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>

On Wed, 2019-11-27 at 17:54 +0000, PG Doc comments form wrote:
> "If a list of columns is specified, COPY will only copy the data in the
> specified columns to or from the file. If there are any columns in the table
> that are not in the column list, COPY FROM will insert the default values
> for those columns."
> 
> I clearly see "to or from" file here. But if one tries to COPY FROM filename
> with more columns than list specified, the process fails:

I think you misunderstood the documentation.

Nowhere in that sentence is the documentation talking about columns in
the file, only columns in the table.

But if you got it wrong, maybe a clarification would be a good idea.

Yours,
Laurenz Albe

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