Github user davies commented on the pull request:
https://github.com/apache/spark/pull/1894#issuecomment-52528427
The builtin zip will return the shortest number of items in them, such as
>>> zip(range(3), range(1))
[(0, 0)]
I will look deep in it.
Davies
On Mon, Aug 18, 2014 at 10:31 AM, Josh Rosen <[email protected]>
wrote:
> Sorry to drop the ball on reviewing this.
>
> On StackOverflow, someone has reported an issue where zip() silently
> returns less output than it should:
>
>
>
http://stackoverflow.com/questions/25364380/why-does-zip-truncate-the-data-in-pyspark
>
> Any thoughts on what's happening there? My hunch is that the PythonRDDs
> have the same number of partitions, same number of batches, and same batch
> sizes, but a different grouping of objects across batched elements. As
long
> as you're working on zip() issues, could you take a look at this and maybe
> port their test case?
>
> --
> Reply to this email directly or view it on GitHub
> <https://github.com/apache/spark/pull/1894#issuecomment-52525986>.
>
--
- Davies
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