AW: AW: [HACKERS] attlen weirdness?

From: Zeugswetter Andreas <andreas(dot)zeugswetter(at)telecom(dot)at>
To: "'Bruce Momjian'" <maillist(at)candle(dot)pha(dot)pa(dot)us>
Cc: "'pgsql-hackers(at)hub(dot)org'" <pgsql-hackers(at)hub(dot)org>
Subject: AW: AW: [HACKERS] attlen weirdness?
Date: 1998-03-12 08:56:36
Message-ID: 01BD4D9D.31C15540@pc9358.sd.spardat.at
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: 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.

Andreas

Responses

Browse pgsql-hackers by date

  From Date Subject
Next Message PostgreSQL 1998-03-12 09:10:43 Failing to get email from list or to susbscribe
Previous Message Vadim B. Mikheev 1998-03-12 07:06:04 Re: [HACKERS] Timetravel vs checkpointing and no read-locking