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Posted to dev@spark.apache.org by William Shen <wi...@marinsoftware.com> on 2019/04/01 18:24:50 UTC

Re: Unsubscribe

Vinod,
You can send an email to dev-unsubscribe@spark.apache.org to unsubscribe.
You should receive an email with instruction to confirm the unsubscribe.

On Sun, Mar 31, 2019 at 7:42 AM Vinod V Rangayyan <vr...@gmail.com>
wrote:

> I wish to unsubscribe from dev@spark.apache.org
>
>
>
>
> On Mar 31, 2019, at 10:07 AM, Rubén Berenguel <rb...@gmail.com>
> wrote:
>
> I favour using either $”foo” or columnar expressions, but know of several
> developers who prefer single quote syntax and consider it a better practice.
>
> R
>
> On 31 March 2019 at 15:15:00, Sean Owen (srowen@apache.org) wrote:
>
>> FWIW I use "foo" in Pyspark or col("foo") where necessary, and $"foo" in
>> Scala
>>
>> On Sun, Mar 31, 2019 at 1:58 AM Reynold Xin <rx...@databricks.com> wrote:
>>
>>> As part of evolving the Scala language, the Scala team is considering
>>> removing single-quote syntax for representing symbols. Single-quote syntax
>>> is one of the ways to represent a column in Spark's DataFrame API. While I
>>> personally don't use them (I prefer just using strings for column names, or
>>> using expr function), I see them used quite a lot by other people's code,
>>> e.g.
>>>
>>> df.select('id, 'name).show()
>>>
>>> I want to bring this to more people's attention, in case they are
>>> depending on this. The discussion thread is:
>>> https://contributors.scala-lang.org/t/proposal-to-deprecate-and-remove-symbol-literals/2953
>>>
>>>
>>>
>>>
>