Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/9123#discussion_r42089770
--- Diff:
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/analysis/AnalysisSuite.scala
---
@@ -135,4 +135,21 @@ class AnalysisSuite extends AnalysisTest {
plan = testRelation.select(CreateStructUnsafe(Seq(a, (a +
1).as("a+1"))).as("col"))
checkAnalysis(plan, plan)
}
+
+ test("SPARK-10534: resolve attribute references in order by clause") {
+
+ val a = testRelation2.output.head
+ val c = testRelation2.output.toArray.apply(2)
+
+ val sortProjected = Floor(Cast(Floor(c), DoubleType))
+ val projected = Alias(a, "a")()
+ val plan = testRelation2.select(a).orderBy(SortOrder(Floor(Floor(c)),
Ascending))
+
+ val expected =
+ Project(Seq(a),
+ Sort(Seq(SortOrder(sortProjected, Ascending)), true,
+ Project(Seq(a, c), testRelation2)))
+ checkAnalysis(plan, expected)
+
+ }
--- End diff --
the test case can be simplified to:
```
val a = testRelation2.output(0)
val c = testRelation2.output(2)
val plan = testRelation2.select(c).orderBy(Floor(a).asc)
val expected = testRelation2.select(c,
a).orderBy(Floor(a.cast(DoubleType)).asc).select(c)
checkAnalysis(plan, expected)
```
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