Thanks! The solution:

https://gist.github.com/dokipen/018a1deeab668efdf455

On Mon, Jun 22, 2015 at 4:33 PM Davies Liu <dav...@databricks.com> wrote:

> Right now, we can not figure out which column you referenced in
> `select`, if there are multiple row with the same name in the joined
> DataFrame (for example, two `value`).
>
> A workaround could be:
>
> numbers2 = numbers.select(df.name, df.value.alias('other'))
> rows = numbers.join(numbers2,
>                     (numbers.name==numbers2.name) & (numbers.value !=
> numbers2.other),
>                     how="inner") \
>               .select(numbers.name, numbers.value, numbers2.other) \
>               .collect()
>
> On Mon, Jun 22, 2015 at 12:53 PM, Ignacio Blasco <elnopin...@gmail.com>
> wrote:
> > Sorry thought it was scala/spark
> >
> > El 22/6/2015 9:49 p. m., "Bob Corsaro" <rcors...@gmail.com> escribió:
> >>
> >> That's invalid syntax. I'm pretty sure pyspark is using a DSL to create
> a
> >> query here and not actually doing an equality operation.
> >>
> >> On Mon, Jun 22, 2015 at 3:43 PM Ignacio Blasco <elnopin...@gmail.com>
> >> wrote:
> >>>
> >>> Probably you should use === instead of == and !== instead of !=
> >>>
> >>> Can anyone explain why the dataframe API doesn't work as I expect it to
> >>> here? It seems like the column identifiers are getting confused.
> >>>
> >>> https://gist.github.com/dokipen/4b324a7365ae87b7b0e5
>

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