Exactly the same with the latest Oracle7 version.
Michael
--
Dr. Michael Meskes, Project-Manager | topsystem Systemhaus GmbH
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> -----Original Message-----
> From: Zeugswetter Andreas SARZ [SMTP:Andreas.Zeugswetter@telecom.at]
> Sent: Wednesday, February 18, 1998 6:33 PM
> To: 'pgsql-hackers@hub.org'
> Subject: Re: [HACKERS] Subselects and NOTs
>
> This is what I did:
> create table a (a int, a1 char(8));
> create table b (b int);
> insert into a values (1, 'one');
> insert into a values (NULL, 'null');
>
>
> and this is what I got from Informix:
> > select * from a where a not in (select * from b);
> a a1
> 1 one
> null
> 2 row(s) retrieved.
> > select * from a where not (a in (select * from b));
> a a1
> 1 one
> null
> 2 row(s) retrieved.
> > select * from a where not a in (select * from b);
> a a1
> 1 one
> null
> 2 row(s) retrieved.
> > select * from a where a<>(select * from b);
> a a1
> No rows found.
> > select * from a where a=(select * from b);
> a a1
> No rows found.
>
> Andreas
