HyukjinKwon commented on a change in pull request #26861:
[SPARK-30231][SQL][PYTHON] Support explain mode in PySpark df.explain
URL: https://github.com/apache/spark/pull/26861#discussion_r357030209
##########
File path: python/pyspark/sql/dataframe.py
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@@ -271,11 +279,38 @@ def explain(self, extended=False):
...
== Physical Plan ==
...
+
+ >>> df.explain(mode="formatted")
+ == Physical Plan ==
+ * Scan ExistingRDD (1)
+ <BLANKLINE>
+ <BLANKLINE>
+ (1) Scan ExistingRDD [codegen id : 1]
+ Output: [age#0, name#1]
+ <BLANKLINE>
+ <BLANKLINE>
+
+ .. versionchanged:: 3.0.0
+ Added optional argument `mode` to specify the expected output
format of plans.
"""
- if extended:
- print(self._jdf.queryExecution().toString())
+ if extended is not None and mode is not None:
+ raise Exception("extended and mode can not be specified
simultaneously")
+
+ # Handle a case with no argument first: df.explain()
Review comment:
Yes .. this case is a bit annoying. There's an example to follow at `sample`.
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