Vinod, You can send an email to dev-unsubscr...@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 <vrangay...@gmail.com> wrote: > I wish to unsubscribe from dev@spark.apache.org > > > > > On Mar 31, 2019, at 10:07 AM, Rubén Berenguel <rbereng...@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 (sro...@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 <r...@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 >>> >>> >>> >>> >