Eric Doi created SPARK-8152:
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Summary: Dataframe Join Ignores Condition
Key: SPARK-8152
URL: https://issues.apache.org/jira/browse/SPARK-8152
Project: Spark
Issue Type: Bug
Reporter: Eric Doi
When joining two tables A and B, on condition that A.X = B.X, in some cases
that condition is not fulfilled in the result.
Suspect it might be due to duplicate column names in the source tables causing
confusion. Is it possible for there to exist hidden fields in a dataframe?
Will attach a screenshot for more details. The bug is reproducible but hard to
pinpoint.
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