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 >> >> >> >>