> I think it's a waste of code to try to handle bushy trees.  A list is
> not a particularly efficient representation of the pending list; this
> will probably be slower than recusing in the common case.  I'd suggest
> keeping the logic to handle left-deep trees, which I find rather
> elegant, but ditching the pending list.

Is there going to be further discussion of this patch, or do I return it?

Josh Berkus
PostgreSQL Experts Inc.

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