Chenzhao Guo created SPARK-19084:
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Summary: misc function: field
Key: SPARK-19084
URL: https://issues.apache.org/jira/browse/SPARK-19084
Project: Spark
Issue Type: Sub-task
Reporter: Chenzhao Guo
Fix For: 2.2.0
field(str, str1, str2, ... ) is a variable-length(>=2) function which returns
the index of str in the str1, str2, ... or 0 if not found.
Every parameter is required to be subtype of AtomicType.
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