On 2017-04-06 09:14:43 -0700, Jim Nasby wrote:
> On 4/6/17 9:04 AM, Peter Eisentraut wrote:
> > On 4/6/17 03:50, Craig Ringer wrote:
> > > But otherwise, pending docs changes, I think it's ready for committer.
> > 
> > My opinion is still that this is ultimately the wrong approach.  The
> > right fix for performance issues in PL/Python is to change PL/Python not
> > to materialize the list of tuples.  Now with this change we would be
> > moving from two result materializations to one, but I think we are
> > keeping the wrong one.
> 
> That's an option for future improvement, but I see no way to accomplish that
> without completely breaking plpy.

Why?  We could very well return a somewhat "smarter" object. Returning
rows row-by-row if accessed via iterator, materializes when accessed via
row offset.

- Andres


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