Обсуждение: NAME maximum length in _bytes_

psql \dTS+ shows for data type 'name':

     pg_catalog | name                | name            | 64   |          |
        | 63-character type for storing system identifiers

I believe this is really 63 bytes, not characters.  I also see it
mismatched in our docs:

    in the internal system catalogs and is not intended for use by the general user. Its
    length is currently defined as 64 bytes (63 usable characters plus
                                                       ----------
    terminator) but should be referenced using the constant
    <symbol>NAMEDATALEN</symbol> in <literal>C</> source code.

Should I fix this?

--
  Bruce Momjian  <bruce@momjian.us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

  + It's impossible for everything to be true. +

On Tue, May 08, 2012 at 05:13:45PM -0400, Bruce Momjian wrote:
> psql \dTS+ shows for data type 'name':
>
>      pg_catalog | name                | name            | 64   |          |
>         | 63-character type for storing system identifiers
>
> I believe this is really 63 bytes, not characters.  I also see it
> mismatched in our docs:
>
>     in the internal system catalogs and is not intended for use by the general user. Its
>     length is currently defined as 64 bytes (63 usable characters plus
>                                                        ----------
>     terminator) but should be referenced using the constant
>     <symbol>NAMEDATALEN</symbol> in <literal>C</> source code.
>
> Should I fix this?

Fix applied;  no catalog bump.

--
  Bruce Momjian  <bruce@momjian.us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

  + It's impossible for everything to be true. +