Re: BUG #2839: after record with NULL field, query result is wrong

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

"Vladimir" <dvs(at)fon(dot)kamchatka(dot)ru> writes:
> create table tst (a int[]);
> insert into tst values ('{1}'); -- (1)
> insert into tst values (null);
> insert into tst values ('{2}'); -- (3)
> select z.a from tst z where exists (select 1 from 
> (
> select generate_series(1,1) as s,* from (select z.a as arr0) qq
> ) q
> where (q.arr0[q.s] is null)  );

Hmm, surprising this hasn't been found before, because the underlying
bug has been around for a long time :-(.  Fix committed --- thanks for
the report!

			regards, tom lane