Wayne Zhang created SPARK-19682:
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Summary: Issue warning (or error) when subset method "[[" takes
vector index
Key: SPARK-19682
URL: https://issues.apache.org/jira/browse/SPARK-19682
Project: Spark
Issue Type: Improvement
Components: SparkR
Affects Versions: 2.1.0
Reporter: Wayne Zhang
Priority: Minor
The `[[` method is supposed to take a single index and return a column. This is
different from base R which takes a vector index. We should check for this and
issue warning or error when vector index is supplied (which is very likely
given the behavior in base R).
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