Le lundi 21 mai 2012 15:35:55, Luca Ferrari a écrit :
> Hi all,
> I don't fully understand how is the cost of a bitmap heap scan
> computed. For instance when the explain output node is similar to the
> following:
>
> Bitmap Heap Scan on test (cost=17376.49..48595.93 rows=566707 width=6)
>Re
Hi all,
I don't fully understand how is the cost of a bitmap heap scan
computed. For instance when the explain output node is similar to the
following:
Bitmap Heap Scan on test (cost=17376.49..48595.93 rows=566707 width=6)
Recheck Cond: ((text1 = 'A'::text) OR (text1 = 'C'::text))
Filter:
