Re: segfault in SQLSpecialColumns when table name is null string

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От Hiroshi Inoue
Тема Re: segfault in SQLSpecialColumns when table name is null string
Дата
Msg-id 5002E6D0.6090303@tpf.co.jp
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Ответ на Re: segfault in SQLSpecialColumns when table name is null string  (Lionel Elie Mamane <lionel@mamane.lu>)
Ответы Re: segfault in SQLSpecialColumns when table name is null string
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(2012/07/15 14:02), Lionel Elie Mamane wrote:
> On Sun, Jul 15, 2012 at 06:50:27AM +0900, Hiroshi Inoue wrote:
>> (2012/07/10 23:27), Lionel Elie Mamane wrote:
>
>>>> Working with PostgreSQL version 8.4.12-0ubuntu11.04 and with ODBC
>>>> driver versions 1:08.03.0200-1.2 (supplied with ubuntu-natty (11.04))
>>>> and pgsqlodbc-09.01.0100 (built locally), I have managed to provoke a
>>>> segfault by calling SQLSpecialColumns with a null string for the table
>>>> name.  This call is, of course, a strange thing to do, and I cannot
>>>> imagine any good result.  Still, a segfault seems a disproportionate
>>>> punishment for doing something silly.
>
>>> Also, the ultimate reason for this "strange thing" is that
>
>>>    SQLColAttribute( (SQLHANDLE) 0x1ec7850,
>>>                     (SQLUSMALLINT) 1,
>>>                     (SQLUSMALLINT) 15,
>>>                     (SQLPOINTER) 0x1eb2640,
>>>                     128,
>>>                     (SQLSMALLINT *) 0x7fffffff97de,
>>>                     NULL);
>
>>> where 15 == SQL_DESC_TABLE_NAME == SQL_COLUMN_TABLE_NAME
>>> returns (writes at 0x1eb2640) an empty string for this query:
>
>>>    SELECT "Num" "Numero", "data" FROM "foo"."Table1"
>
>> What is your environment e.g. the version of your PG server
>> or the version of your psqlodbc?
>
> On Debian GNU/Linux amd64, Debian packages.
>
> Client:
>   unixodbc     2.2.14p2-5
>   psqlodbc     09.01.0100
>   libpq5       9.1.3
> Server:
>   postgresql   9.0.6

SQLColattribute returns non null string here under Windows environment.
Well how are you setting odbc.ini?

regards,
Hiroshi Inoue



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