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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2022/11/11 21:19:41 UTC
[GitHub] [spark] grundprinzip commented on a diff in pull request #38631: [SPARK-40809] [CONNECT] [FOLLOW] Support `alias()` in Python client
grundprinzip commented on code in PR #38631:
URL: https://github.com/apache/spark/pull/38631#discussion_r1020564580
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python/pyspark/sql/connect/column.py:
##########
@@ -82,6 +82,74 @@ def to_plan(self, session: "RemoteSparkSession") -> "proto.Expression":
def __str__(self) -> str:
...
+ def alias(self, *alias: str, **kwargs: Any) -> "Expression":
+ """
+ Returns this column aliased with a new name or names (in the case of expressions that
+ return more than one column, such as explode).
+
+ .. versionadded:: 1.3.0
Review Comment:
Fixed.
##########
python/pyspark/sql/connect/column.py:
##########
@@ -82,6 +82,74 @@ def to_plan(self, session: "RemoteSparkSession") -> "proto.Expression":
def __str__(self) -> str:
...
+ def alias(self, *alias: str, **kwargs: Any) -> "Expression":
+ """
+ Returns this column aliased with a new name or names (in the case of expressions that
+ return more than one column, such as explode).
+
+ .. versionadded:: 1.3.0
+
+ Parameters
+ ----------
+ alias : str
+ desired column names (collects all positional arguments passed)
+
+ Other Parameters
+ ----------------
+ metadata: dict
+ a dict of information to be stored in ``metadata`` attribute of the
+ corresponding :class:`StructField <pyspark.sql.types.StructField>` (optional, keyword
+ only argument)
+
+ .. versionchanged:: 2.2.0
+ Added optional ``metadata`` argument.
Review Comment:
removed.
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