Re: [HACKERS] User names cannot contain `-'

>
> I have a bug reported on the Debian package of 6.3.2:
>
> > videotapes=> grant all on tapes to www-data;
> > ERROR: aclparse: non-existent user "www"
>
> It is, in fact, impossible to create the user www-data:
>
> template1=> create user www-data;
> ERROR: parser: parse error at or near "-"
> template1=> create user 'www-data';
> ERROR: parser: parse error at or near "'"
>
> So there are two problems:
>
> 1. The error message
>
> `ERROR: aclparse: non-existent user "www"'
>
> is incorrect. The parser should actually object to the `-' character; it
> appears to be silently dropping the `-data'.
>
> 2. The range of possible user names is not the same as the range of possible
> Unix login names. However, the manual pages do not define what characters
> are valid. The SQL standard is silent on this point; it simply regards
> the current user name as an identifier supplied by the system. On the
> other hand, it is clear that PostgreSQL regards a user name as an SQL
> identifier, so that there is no distinction of case and no punctuation
> characters are allowed.

We allow undercores, but not dashes.

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