I wrote: > In the meantime, here's my version. Notable changes: I went ahead and pushed this, with the removal of the preorder/postorder code, so we can see if the buildfarm finds out anything interesting. Feel free to continue to submit improvements though.
One thing that occurred to me is that as-is, this is entirely black-box testing. It doesn't try to check that the tree actually satisfies the RB invariants, which is something that is interesting for performance reasons. (That is, the code could pass these tests even though it produces an unbalanced tree with horrible performance.) Is it worth adding logic for that? Not sure. It's not like we are actively changing the RB code or have reason to think it is buggy. regards, tom lane -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers