Re: execute incorect query and get data

[Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>]

=?ISO-8859-2?Q?Marek_Wr=F3bel?= <mwrobel(at)icentrum(dot)pl> writes:
> create table a (a1 integer);
> create table b (b1 integer);
> insert into a (a1) values (1);
> insert into a (a1) values (2);
> select a1 from b;
> ERROR:  column "a1" does not exist at character 8
> but :
> select a1 from a where a1 not in (select a1 from b);

This is not a bug, it's an outer reference.  Read any SQL book ...

			regards, tom lane