Обсуждение: "man psql" \set documentation error

Running an application and \set'ing its output in a variable requires use of
the backtick '`' operator.  Under the heading "SQL INTERPOLATION", the
examples should be as follows (the difference being use of backticks instead
of single quotes around the command to be executed):

Current (wrong):
       testdb=> \set content '\'' 'cat my_file.txt' '\''

Correct:
       testdb=> \set content '\'' `cat my_file.txt` '\''



Current (wrong):
       testdb=> \set content 'sed -e "s/'/\\\\\\'/g" < my_file.txt'

Correct:
       testdb=> \set content `sed -e "s/'/\\\\\\'/g" < my_file.txt`


Cheers,

Derrell

Derrell.Lipman@UnwiredUniverse.com wrote:
> Running an application and \set'ing its output in a variable requires use of
> the backtick '`' operator.  Under the heading "SQL INTERPOLATION", the
> examples should be as follows (the difference being use of backticks instead
> of single quotes around the command to be executed):
>
> Current (wrong):
>        testdb=> \set content '\'' 'cat my_file.txt' '\''
>
> Correct:
>        testdb=> \set content '\'' `cat my_file.txt` '\''
>
>
>
> Current (wrong):
>        testdb=> \set content 'sed -e "s/'/\\\\\\'/g" < my_file.txt'
>
> Correct:
>        testdb=> \set content `sed -e "s/'/\\\\\\'/g" < my_file.txt`
>

I just checked and it looks fine in current sources.  Does it look right
in your browser:

    http://candle.pha.pa.us/main/writings/pgsql/sgml/app-psql.html

--
  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

Bruce Momjian <pgman@candle.pha.pa.us> writes:

> Derrell.Lipman@UnwiredUniverse.com wrote:
>> Running an application and \set'ing its output in a variable requires use of
>> the backtick '`' operator.  Under the heading "SQL INTERPOLATION", the
>> examples should be as follows (the difference being use of backticks instead
>> of single quotes around the command to be executed):
>>
>> Current (wrong):
>>        testdb=> \set content '\'' 'cat my_file.txt' '\''
>>
>> Correct:
>>        testdb=> \set content '\'' `cat my_file.txt` '\''
>>
>>
>>
>> Current (wrong):
>>        testdb=> \set content 'sed -e "s/'/\\\\\\'/g" < my_file.txt'
>>
>> Correct:
>>        testdb=> \set content `sed -e "s/'/\\\\\\'/g" < my_file.txt`
>>
>
> I just checked and it looks fine in current sources.  Does it look right
> in your browser:
>
>     http://candle.pha.pa.us/main/writings/pgsql/sgml/app-psql.html

Yes, it looks correct in that html version; it just has the wrong character in
the nroff "man" version.

Cheers,

Derrell