Re: AW: AW: [HACKERS] attlen weirdness?
От | Bruce Momjian |
---|---|
Тема | Re: AW: AW: [HACKERS] attlen weirdness? |
Дата | |
Msg-id | 199803121348.IAA15190@candle.pha.pa.us обсуждение исходный текст |
Ответ на | AW: AW: [HACKERS] attlen weirdness? (Zeugswetter Andreas <andreas.zeugswetter@telecom.at>) |
Список | pgsql-hackers |
> > > Right now: yes, but I would like to see the char() type changed to a fixed length type (which it really is) > > then it would have the length in attlen. Right now the length for char and varchar is in atttypmod. > > > > Again, we can do this, but we then have to have atttypmod available in > all places where we check for length. I will add it to the TODO list. > > I am starting to see the problem, only atttypmod is passed around not attlen. > Therefore even if we do this, the char() length of a column still has to be in atttypmod. > So it will stay the same for Julie, whether it is taken out or not. But since it is really > hard for a generic application like ODBC, maybe we could change atttypmod to not > include the VARHDRSZ, most of the time it is needed without VARHDRSZ anyway ? > I am starting to think that this would be more important than to remove the 4 bytes. Those four bytes have always been there. Check psql or pg_dump. See them subtracting VARHDRSZ all the time. -- Bruce Momjian | 830 Blythe Avenue maillist@candle.pha.pa.us | Drexel Hill, Pennsylvania 19026 + If your life is a hard drive, | (610) 353-9879(w) + Christ can be your backup. | (610) 853-3000(h)
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