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

Hello, Bruce.

Thanks for an answer. Are there any thoughts to insert check into
PostgreSQL code or we (developers) must take into account that UDT
with leading underscore may exist?

You wrote:

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

BM> ---------------------------------------------------------------------------

BM> 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
>>
>> ---------------------------(end of broadcast)---------------------------
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>>
>> http://archives.postgresql.org

--
With best wishes,
Pavel mailto:pavel(at)microolap(dot)com