ntjohnson1 commented on code in PR #1423:
URL:
https://github.com/apache/datafusion-python/pull/1423#discussion_r2946231745
##########
python/datafusion/functions.py:
##########
@@ -1338,7 +1656,16 @@ def trunc(num: Expr, precision: Expr | None = None) ->
Expr:
def upper(arg: Expr) -> Expr:
- """Converts a string to uppercase."""
+ """Converts a string to uppercase.
+
+ Examples:
+ ---------
+ >>> ctx = dfn.SessionContext()
+ >>> df = ctx.from_pydict({"a": ["hello"]})
+ >>> result = df.select(dfn.functions.upper(dfn.col("a")).alias("u"))
+ >>> result.collect_column("u")[0].as_py()
+ 'HELLO'
+ """
return Expr(f.upper(arg.expr))
Review Comment:
Regex got handled in another PR. I just merged main and they are covered now
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