On Fri, 28 May 2004 21:59:53 -0400, Alvaro Herrera
<[EMAIL PROTECTED]> wrote:
>So the assumption was that when we see that this has
>happenned, the Cmin is no longer important (== every future command can
>already see the tuple)
If it was that simple, we wouldn't have had to invent the CMIN_IS_CMAX
flag. This has been discussed two years ago. Did you follow the link I
posted last week? "Every future command" is not enough. You have to
consider the current command and even commands started before this.
Servus
Manfred
---------------------------(end of broadcast)---------------------------
TIP 9: the planner will ignore your desire to choose an index scan if your
joining column's datatypes do not match
