Re: [Patch] RBTree iteration interface improvement

On Wed, Jul 27, 2016 at 7:56 PM, Aleksander Alekseev
<a(dot)alekseev(at)postgrespro(dot)ru> wrote:
> Hello
>
> While working on some new feature for PostgreSQL (which is still in
> development and is irrelevant in this context) I noticed that current
> RBTree implementation interface is following:
>
> ```
> extern void rb_begin_iterate(RBTree *rb, RBOrderControl ctrl);
> extern RBNode *rb_iterate(RBTree *rb);
> ```
>
> As you see it doesn't allow to do multiple iterations over a single
> tree. I believe it's a major flaw for a general-purpose container.
>

Can you explain use case where you need it?

--
With Regards,
Amit Kapila.
EnterpriseDB: http://www.enterprisedb.com