On Thu, Nov 28, 2019 at 02:53:03PM +0100, Pavlo Golub wrote:
> On Thu, 28 Nov 2019 at 10:47, Laurenz Albe <laurenz.a...@cybertec.at> wrote:
> >
> > 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.
>
> Yeap, I did. Even two of us. Laetitia was helping me :)
>
> >
> > 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.
>
> I think it better to have more details to avoid confusion.
How is the attached patch?
--
Bruce Momjian <br...@momjian.us> http://momjian.us
EnterpriseDB http://enterprisedb.com
+ As you are, so once was I. As I am, so you will be. +
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diff --git a/doc/src/sgml/ref/copy.sgml b/doc/src/sgml/ref/copy.sgml
new file mode 100644
index d9b7c4d..475d40c
*** a/doc/src/sgml/ref/copy.sgml
--- b/doc/src/sgml/ref/copy.sgml
*************** COPY { <replaceable class="parameter">ta
*** 63,71 ****
<para>
If a list of columns is specified, <command>COPY</command> 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,
! <command>COPY FROM</command> will insert the default values for
! those columns.
</para>
<para>
--- 63,72 ----
<para>
If a list of columns is specified, <command>COPY</command> will
only copy the data in the specified columns to or from the file.
! In <command>COPY FROM</command>, the number of columns specified
! must match the number of fields in the file; any table columns not
! specified in the <command>COPY FROM</command> column list will insert
! their default values.
</para>
<para>
