Re: BitmapHeapScan streaming read user and prelim refactoring

On 2024-May-14, Alvaro Herrera wrote:


> BTW, I was running the explain while desultorily enabling and disabling
> these GUCs and hit this assertion failure:
> 
> #4  0x000055e6c72afe28 in ExceptionalCondition (conditionName=conditionName@entry=0x55e6c731a928
"scan->rs_empty_tuples_pending== 0", 
 
>     fileName=fileName@entry=0x55e6c731a3b0
"../../../../../../../../../pgsql/source/master/src/backend/access/heap/heapam.c",lineNumber=lineNumber@entry=1219)
 
>     at ../../../../../../../../../pgsql/source/master/src/backend/utils/error/assert.c:66

Ah, I see now that this is precisely the assertion that this patch
removes.  Nevermind ...

-- 
Álvaro Herrera         PostgreSQL Developer  —  https://www.EnterpriseDB.com/
"This is what I like so much about PostgreSQL.  Most of the surprises
are of the "oh wow!  That's cool" Not the "oh shit!" kind.  :)"
Scott Marlowe, http://archives.postgresql.org/pgsql-admin/2008-10/msg00152.php