Re: Re: 7.2 items

Hannu Krosing <hannu@tm.ee>

From: Hannu Krosing <hannu@tm.ee>
To: Peter Eisentraut <peter_e@gmx.net>
Cc: Bruce Momjian <pgman@candle.pha.pa.us>, Thomas Swan <tswan@olemiss.edu>, PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2001-06-28T06:33:24Z
Lists: pgsql-hackers
Peter Eisentraut wrote:
> 
> Hannu Krosing writes:
> 
> > > > Is there an ISO/ANSI SQL interface to BLOB's defined someplace ?
> > >
> > > It's basically no different from regular character strings, i.e.,
> > > substring(), position(), ||, etc.
> >
> > So no standard seek/read/write type interface ?
> 
> SQL is not a procedural language, so this has to be expected.

SQL is about 3-5 languages which share some syntax DDL,DML,DQL,cursor
manipulation,...

And we do currently have seek/read/write for LOs, possibly as a relict
from postquel.

We also have PL/PGSQL and other PL's that can be used from wihin SQL, so
for me the 
borders between different languages seem quite blurred. 

What I hoped the standard would have is something like cursor ops on a
field in on 
outer cursors current record.

------------------
Hannu