RE: [HACKERS] Subselects and NOTs

Exactly the same with the latest Oracle7 version.

Michael

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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