Re: Fixing backslash dot for COPY FROM...CSV

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От vignesh C
Тема Re: Fixing backslash dot for COPY FROM...CSV
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Msg-id CALDaNm1rss2iR6=Jxk_=S-fWS23Z-70939jdY=QX8Xwpdg9u0g@mail.gmail.com
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Ответ на Re: Fixing backslash dot for COPY FROM...CSV  ("Daniel Verite" <daniel@manitou-mail.org>)
Список pgsql-hackers
On Fri, 22 Dec 2023 at 01:17, Daniel Verite <daniel@manitou-mail.org> wrote:
>
>         vignesh C wrote:
>
> > Thanks for the updated patch, any reason why this is handled only in csv.
> > postgres=# copy test1 from '/home/vignesh/postgres/inst/bin/copy1.out';
> > COPY 1
> > postgres=# select * from test1;
> >  c1
> > -------
> > line1
> > (1 row)
>
> I believe it's safer to not change anything to the normal "non-csv"
> text mode.
> The current doc says that \. will not be taken as data in this format.
> From https://www.postgresql.org/docs/current/sql-copy.html :
>
>    Any other backslashed character that is not mentioned in the above
>    table will be taken to represent itself. However, beware of adding
>    backslashes unnecessarily, since that might accidentally produce a
>    string matching the end-of-data marker (\.) or the null string (\N
>    by default). These strings will be recognized before any other
>    backslash processing is done.

Thanks for the clarification. Then let's keep it as you have implemented.

Regards,
Vignesh



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