On 2016/02/15 21:33, Ashutosh Bapat wrote:
Here's patch with better way to fix it. I think while concatenating the lists, we need to copy the lists being appended and in all the cases. If we don't copy, a change in those lists can cause changes in the upward linkages and thus lists of any higher level joins.
Maybe I'm missing something, but I don't understand why such a change in those lists happens. Could you explain about that in more detail?
Best regards, Etsuro Fujita -- Sent via pgsql-hackers mailing list (email@example.com) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers