From: | Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us> |
---|---|
To: | lockhart(at)alumni(dot)caltech(dot)edu (Thomas G(dot) Lockhart) |
Cc: | byronn(at)insightdist(dot)com, hannu(at)trust(dot)ee, daveh(at)insightdist(dot)com, pgsql-hackers(at)postgresql(dot)org, pgsql-interfaces(at)postgresql(dot)org |
Subject: | Re: [HACKERS] Re: [INTERFACES] retrieving varchar size |
Date: | 1998-04-28 02:17:55 |
Message-ID: | 199804280217.WAA01689@candle.pha.pa.us |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-hackers pgsql-interfaces |
>
> > > > We could pass back atttypmod as part of the PGresult. I can add
> > > > that to the TODO list. Would that help?
> > > Yes, that would do it!
> > > Thank you for listening to our ravings on this issue.
> > Added to TODO:
> > * Add pg_attribute.atttypmod/Resdom->restypmod to PGresult structure
> > This is a good suggestion.
>
> How do we determine atttypmod for queries like
>
> select '123' || '456';
>
> ?? I might be able to address this with my upcoming type conversion work
> but I don't know if we have enough hooks for this right now...
No way, I think. This would have a atttypmod of -1, which is true
because there is no atttypmod size for this. Once a char()/varchar()
goes into a function, anything can come out.
--
Bruce Momjian | 830 Blythe Avenue
maillist(at)candle(dot)pha(dot)pa(dot)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)
From | Date | Subject | |
---|---|---|---|
Next Message | Thomas G. Lockhart | 1998-04-28 02:22:42 | Re: [HACKERS] Re: [QUESTIONS] Practical SQL Handbook - demo script for postgreSQL |
Previous Message | Vadim B. Mikheev | 1998-04-28 02:04:48 | Re: [INTERFACES] Re: [HACKERS] New Driver and Unique Indexes |
From | Date | Subject | |
---|---|---|---|
Next Message | Bruce Momjian | 1998-04-28 02:42:36 | Re: [HACKERS] New Driver and Unique Indexes |
Previous Message | Vadim B. Mikheev | 1998-04-28 02:04:48 | Re: [INTERFACES] Re: [HACKERS] New Driver and Unique Indexes |