Re: Problem with Bitmap Heap Scan

"Rushabh Lathia" <rushabh(dot)lathia(at)gmail(dot)com> writes:
> Simple select give wrong result when it uses the Bitmap Heap Scan path.

It's generally appropriate to mention which PG version you're working
with when you report a bug.

> postgres=# explain select proname from pg_proc where proname like 'my_pro1';
> QUERY
> PLAN

> --------------------------------------------------------------------------------
> -------------
> Bitmap Heap Scan on pg_proc (cost=4.26..8.27 rows=1 width=64)
> Recheck Cond: (proname ~~ 'my_pro1'::text)
> -> Bitmap Index Scan on pg_proc_proname_args_nsp_index (cost=0.00..4.26
> row
> s=1 width=0)
> Index Cond: ((proname >= 'my'::name) AND (proname < 'mz'::name))
> (4 rows)

Hmm, the ~~ condition should get treated as a "filter" not a "recheck".
I suppose I broke this somewhere ...

regards, tom lane