Hyukjin Kwon created SPARK-17764:
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Summary: to_json function for parsing Structs to json Strings
Key: SPARK-17764
URL: https://issues.apache.org/jira/browse/SPARK-17764
Project: Spark
Issue Type: Improvement
Components: SQL
Reporter: Hyukjin Kwon
After SPARK-17699, now Spark supprots {{from_json}}. It might be nicer if we
have {{to_json}} too, in particular, in the case to write out dataframes by
some data sources not supporting nested structured types.
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