Cheng Lian created SPARK-13314:
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Summary: Malformed WholeStageCodegen tree string
Key: SPARK-13314
URL: https://issues.apache.org/jira/browse/SPARK-13314
Project: Spark
Issue Type: Bug
Reporter: Cheng Lian
Priority: Minor
{{WholeStageCodegen}} overrides {{generateTreeString}} to show the inner plan
tree, but the output can be malformed when the plan contains binary operators:
{code}
val a = sqlContext range 5
val b = sqlContext range 2
a select ('id as 'a) unionAll (b select ('id as 'a)) explain true
{code}
{noformat}
...
== Physical Plan ==
Union
:- WholeStageCodegen
: : +- Project [id#3L AS a#6L]
: : +- Range 0, 1, 8, 5, [id#3L]
+- WholeStageCodegen
: +- Project [id#4L AS a#7L]
: +- Range 0, 1, 8, 2, [id#4L]
{noformat}
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