Andres Freund <andres(at)anarazel(dot)de> writes:
> On 06/16/2009 04:32 PM, Robert Haas wrote:
>> Note that even in this case we DON'T rely on the ordering of the
>> nodes. The inner<plan> nodes have child nodes which contain their
>> relationship to the parent.
> Not in the case of Append nodes, but I fail to see a problem there, so...
The order of Append child nodes is in fact significant. If this
representation loses that information then it needs to be fixed.
However, is it really so bad to be relying on node order for this?
regards, tom lane