52302a8039
This is a follow up of [SPARK-8283](https://issues.apache.org/jira/browse/SPARK-8283) ([PR-6828](https://github.com/apache/spark/pull/6828)), to support both `struct` and `named_struct` in Spark SQL. After [#6725](https://github.com/apache/spark/pull/6828), the semantic of [`CreateStruct`](https://github.com/apache/spark/blob/master/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/complexTypes.scala#L56) methods have changed a little and do not limited to cols of `NamedExpressions`, it will name non-NamedExpression fields following the hive convention, col1, col2 ... This PR would both loosen [`struct`](https://github.com/apache/spark/blob/master/sql/core/src/main/scala/org/apache/spark/sql/functions.scala#L723) to take children of `Expression` type and add `named_struct` support. Author: Yijie Shen <henry.yijieshen@gmail.com> Closes #6874 from yijieshen/SPARK-8283 and squashes the following commits: 4cd3375ac [Yijie Shen] change struct documentation d599d0b [Yijie Shen] rebase code 9a7039e [Yijie Shen] fix reviews and regenerate golden answers b487354 [Yijie Shen] replace assert using checkAnswer f07e114 [Yijie Shen] tiny fix 9613be9 [Yijie Shen] review fix 7fef712 [Yijie Shen] Fix checkInputTypes' implementation using foldable and nullable 60812a7 [Yijie Shen] Fix type check 828d694 [Yijie Shen] remove unnecessary resolved assertion inside dataType method fd3cd8e [Yijie Shen] remove type check from eval 7a71255 [Yijie Shen] tiny fix ccbbd86 [Yijie Shen] Fix reviews 47da332 [Yijie Shen] remove nameStruct API from DataFrame 917e680 [Yijie Shen] Fix reviews 4bd75ad [Yijie Shen] loosen struct method in functions.scala to take Expression children 0acb7be [Yijie Shen] Add CreateNamedStruct in both DataFrame function API and FunctionRegistery |
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| compatibility/src/test/scala/org/apache/spark/sql/hive/execution | ||
| src | ||
| pom.xml | ||