maropu commented on a change in pull request #31207:
URL: https://github.com/apache/spark/pull/31207#discussion_r566570144
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File path: python/pyspark/sql/functions.py
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@@ -91,13 +92,58 @@ def lit(col):
Creates a :class:`Column` of literal value.
.. versionadded:: 1.3.0
+ .. versionchanged:: 3.2.0
+ Added support for complex type literals.
+
+ Parameters
+ ----------
+ col : bool, float, int, str, datetime.date, datetime.datetime, dict, list,
tuple
+ Object to be converted into :class:`Column`.
+
+ If it is a collection, conversion will be applied recursively. In such
case,
+ all stored values should be of compatible types.
+
+ I `col` is already a :class:`Column`, it will be returned unmodified.
Review comment:
ditto: "The passed in object is returned directly if it is already a
:class:`Column`."
https://github.com/apache/spark/blob/72b7f8abfb60d0008f1f9bed94ce1c367a7d7cce/sql/core/src/main/scala/org/apache/spark/sql/functions.scala#L107
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