maropu commented on a change in pull request #28560:
URL: https://github.com/apache/spark/pull/28560#discussion_r428991085
##########
File path:
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/NestedColumnAliasingSuite.scala
##########
@@ -341,6 +341,100 @@ class NestedColumnAliasingSuite extends SchemaPruningTest
{
.analyze
comparePlans(optimized, expected)
}
+
+ test("Nested field pruning for Aggregate") {
+ def runTest(basePlan: LogicalPlan => LogicalPlan): Unit = {
+ val query1 =
basePlan(contact).groupBy($"id")(first($"name.first").as("first")).analyze
+ val optimized1 = Optimize.execute(query1)
+ val aliases1 = collectGeneratedAliases(optimized1)
+
+ val expected1 = basePlan(
+ contact
+ .select($"id", 'name.getField("first").as(aliases1(0)))
+ ).groupBy($"id")(first($"${aliases1(0)}").as("first")).analyze
+ comparePlans(optimized1, expected1)
+
+ val query2 =
basePlan(contact).groupBy($"name.last")(first($"name.first").as("first")).analyze
+ val optimized2 = Optimize.execute(query2)
+ val aliases2 = collectGeneratedAliases(optimized2)
+
+ val expected2 = basePlan(
+ contact
+ .select('name.getField("last").as(aliases2(0)),
'name.getField("first").as(aliases2(1)))
+
).groupBy($"${aliases2(0)}")(first($"${aliases2(1)}").as("first")).analyze
+ comparePlans(optimized2, expected2)
+ }
+
+ Seq(
+ (plan: LogicalPlan) => plan,
+ (plan: LogicalPlan) => plan.limit(100),
+ (plan: LogicalPlan) => plan.repartition(100),
+ (plan: LogicalPlan) => Sample(0.0, 0.6, false, 11L, plan)).foreach {
base =>
Review comment:
Thanks for this update and looks fine.
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