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https://issues.apache.org/jira/browse/SPARK-41831?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17654859#comment-17654859
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Apache Spark commented on SPARK-41831:
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User 'zhengruifeng' has created a pull request for this issue:
https://github.com/apache/spark/pull/39405
> DataFrame.transform: Only Column or String can be used for projections
> ----------------------------------------------------------------------
>
> Key: SPARK-41831
> URL: https://issues.apache.org/jira/browse/SPARK-41831
> Project: Spark
> Issue Type: Sub-task
> Components: Connect
> Affects Versions: 3.4.0
> Reporter: Sandeep Singh
> Priority: Major
>
> {code:java}
> File
> "/Users/s.singh/personal/spark-oss/python/pyspark/sql/connect/dataframe.py",
> line 1168, in pyspark.sql.connect.dataframe.DataFrame.transform
> Failed example:
> df.transform(cast_all_to_int).transform(sort_columns_asc).show()
> Exception raised:
> Traceback (most recent call last):
> File
> "/usr/local/Cellar/[email protected]/3.10.8/Frameworks/Python.framework/Versions/3.10/lib/python3.10/doctest.py",
> line 1350, in __run
> exec(compile(example.source, filename, "single",
> File "<doctest pyspark.sql.connect.dataframe.DataFrame.transform[4]>",
> line 1, in <module>
> df.transform(cast_all_to_int).transform(sort_columns_asc).show()
> File
> "/Users/s.singh/personal/spark-oss/python/pyspark/sql/connect/dataframe.py",
> line 1102, in transform
> result = func(self, *args, **kwargs)
> File "<doctest pyspark.sql.connect.dataframe.DataFrame.transform[2]>",
> line 2, in cast_all_to_int
> return input_df.select([col(col_name).cast("int") for col_name in
> input_df.columns])
> File
> "/Users/s.singh/personal/spark-oss/python/pyspark/sql/connect/dataframe.py",
> line 86, in select
> return DataFrame.withPlan(plan.Project(self._plan, *cols),
> session=self._session)
> File
> "/Users/s.singh/personal/spark-oss/python/pyspark/sql/connect/plan.py", line
> 344, in __init__
> self._verify_expressions()
> File
> "/Users/s.singh/personal/spark-oss/python/pyspark/sql/connect/plan.py", line
> 350, in _verify_expressions
> raise InputValidationError(
> pyspark.sql.connect.plan.InputValidationError: Only Column or String can
> be used for projections: '[Column<'(ColumnReference(int) (int))'>,
> Column<'(ColumnReference(float) (int))'>]'.
> **********************************************************************
> File
> "/Users/s.singh/personal/spark-oss/python/pyspark/sql/connect/dataframe.py",
> line 1179, in pyspark.sql.connect.dataframe.DataFrame.transform
> Failed example:
> df.transform(add_n, 1).transform(add_n, n=10).show()
> Exception raised:
> Traceback (most recent call last):
> File
> "/usr/local/Cellar/[email protected]/3.10.8/Frameworks/Python.framework/Versions/3.10/lib/python3.10/doctest.py",
> line 1350, in __run
> exec(compile(example.source, filename, "single",
> File "<doctest pyspark.sql.connect.dataframe.DataFrame.transform[6]>",
> line 1, in <module>
> df.transform(add_n, 1).transform(add_n, n=10).show()
> File
> "/Users/s.singh/personal/spark-oss/python/pyspark/sql/connect/dataframe.py",
> line 1102, in transform
> result = func(self, *args, **kwargs)
> File "<doctest pyspark.sql.connect.dataframe.DataFrame.transform[5]>",
> line 2, in add_n
> return input_df.select([(col(col_name) + n).alias(col_name)
> File
> "/Users/s.singh/personal/spark-oss/python/pyspark/sql/connect/dataframe.py",
> line 86, in select
> return DataFrame.withPlan(plan.Project(self._plan, *cols),
> session=self._session)
> File
> "/Users/s.singh/personal/spark-oss/python/pyspark/sql/connect/plan.py", line
> 344, in __init__
> self._verify_expressions()
> File
> "/Users/s.singh/personal/spark-oss/python/pyspark/sql/connect/plan.py", line
> 350, in _verify_expressions
> raise InputValidationError(
> pyspark.sql.connect.plan.InputValidationError: Only Column or String can
> be used for projections: '[Column<'Alias(+(ColumnReference(int), Literal(1)),
> (int))'>, Column<'Alias(+(ColumnReference(float), Literal(1)),
> (float))'>]'.{code}
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