Re: pgsql/src/bin/pg_dump pg_dumpall.sh

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От Bruce Momjian
Тема Re: pgsql/src/bin/pg_dump pg_dumpall.sh
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Msg-id 200204112116.g3BLGgY04513@candle.pha.pa.us
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Ответ на Re: pgsql/src/bin/pg_dump pg_dumpall.sh  (Bruce Momjian <pgman@candle.pha.pa.us>)
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OK, done.  I successfully dumpall'ed a database called "  x  y  ".  :-)

---------------------------------------------------------------------------

Bruce Momjian wrote:
> Tom Lane wrote:
> > momjian@postgresql.org (Bruce Momjian - CVS) writes:
> > > Modified files:
> > >     src/bin/pg_dump: pg_dumpall.sh
> >
> > > Log message:
> > >     Fix pg_upgrade to handle dbnames, user/group names with spaces.
> >
> > I think it's illusory to imagine that this fixes the issue.  Unless
> > "read"'s behavior is more tightly specified than I think, you are still
> > gonna have trouble with leading, trailing, or consecutive blanks.
>
> Yes, it does fail on leading/trailing spaces, but it is better than it
> was before.
>
> > I'm also concerned that you've opened up portability issues concerning
> > newlines embedded in shell literals (eg, does that sed command portably
> > do what you think?).
>
> I certainly think so.  It is:
>
>     echo "a b c" | sed 's/ /\
> /g'
>
> outputs:
>
>     a
>     b
>     c
>
> Embedding backslash-n in 'sed' is a portability problem.
>
> Clearly read has problems:
>
>     #$ read X
>        a   b
>     #$ echo $X
>     a b
>
> I could so IFS="newline" to handle the space issue.  Let me try that.
>
> --
>   Bruce Momjian                        |  http://candle.pha.pa.us
>   pgman@candle.pha.pa.us               |  (610) 853-3000
>   +  If your life is a hard drive,     |  830 Blythe Avenue
>   +  Christ can be your backup.        |  Drexel Hill, Pennsylvania 19026
>
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--
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman@candle.pha.pa.us               |  (610) 853-3000
  +  If your life is a hard drive,     |  830 Blythe Avenue
  +  Christ can be your backup.        |  Drexel Hill, Pennsylvania 19026

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