Re: BUG #2852: User-defined type name begins with the

I have applied the following documentaiton patch that states a leading
underscore "shouldn't" be used, rather than prohibited.

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Pavel Golub wrote:
>
> The following bug has been logged online:
>
> Bug reference: 2852
> Logged by: Pavel Golub
> Email address: pavel(at)microolap(dot)com
> PostgreSQL version: 8.x
> Operating system: Windows XP
> Description: User-defined type name begins with the underscore
> character (_) can be created
> Details:
>
> Hello, pgsql-bugs.
>
> Documentation says:
> "User-defined type names cannot begin with the
> underscore character (_) and can only be 62
> characters long (or in general NAMEDATALEN - 2,
> rather than the NAMEDATALEN - 1 characters
> allowed for other names). Type names beginning
> with underscore are reserved for
> internally-created array type names. "
>
> However, such SQL may be executed:
>
> CREATE TYPE _my AS (id int4, id2 int4);
>
> And then server treats it as an array type. Thus next SQL will be executed
> too:
>
> CREATE TABLE my_table(
> my_arr my[]
> );
>
> Checked on PostgreSQL versions (Windows XP):
> 8.0.6
> 8.1.0
> 8.2.0
>
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