Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/10577#discussion_r48931112
--- Diff: sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveQl.scala ---
@@ -1212,7 +1212,12 @@
https://cwiki.apache.org/confluence/display/Hive/Enhanced+Aggregation%2C+Cube%2C
}
// If there are multiple INSERTS just UNION them together into on
query.
- val query = queries.reduceLeft(Union)
+ val query =
--- End diff --
again you can write it in one line and be more concise here
```
if (queries.length == 1) queries.head else Union(queries)
```
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