Beishao Cao created SPARK-43270:
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Summary: Implement __dir__() in pyspark.sql.dataframe.DataFrame to
include columns
Key: SPARK-43270
URL: https://issues.apache.org/jira/browse/SPARK-43270
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 3.5.0
Reporter: Beishao Cao
Currently, {{df.|}} will only suggest the method of dataframe(see attached
photo of databricks notebook), but {{df.column_name}} is also legal.
!image-2023-04-24-13-44-33-716.png|width=389,height=248!
So we should override the parent {{__dir__}} method on Python {{DataFrame}}
class to include column names. And the benefit of this is engine that uses
{{dir()}} to generate autocomplete suggestions (e.g. IPython kernel, Databricks
Notebooks) will suggest column names on the completion {{df.|}}
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