timsaucer commented on code in PR #909:
URL: https://github.com/apache/datafusion-python/pull/909#discussion_r1798407548
##########
python/datafusion/dataframe.py:
##########
@@ -163,7 +163,20 @@ def with_column(self, name: str, expr: Expr) -> DataFrame:
def with_columns(
self, *exprs: Expr | Iterable[Expr], **named_exprs: Expr
) -> DataFrame:
- """Add an additional column to the DataFrame.
+ """Add columns to the DataFrame.
+
+ By passing expressions, iteratables of expressions, or named
expressions. To
+ pass named expressions use the form name=Expr.
+
+ Example usage:
+
+ The following will add 4 columns labeled a, b, c, and d.
+
+ df = df.with_columns(
+ lit(0).alias('a'),
+ [lit(1).alias('b'), lit(2).alias('c')],
+ d=lit(3)
+ )
Review Comment:
Do you know if this renders right in the online doc? If not, I can pull your
branch and test it out
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