zhengruifeng commented on code in PR #48410:
URL: https://github.com/apache/spark/pull/48410#discussion_r1795330189
##########
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/OptimizerSuite.scala:
##########
@@ -313,4 +313,23 @@ class OptimizerSuite extends PlanTest {
assert(message1.contains("not a valid aggregate expression"))
}
}
+
+ test("SPARK-49924: Keep containsNull after replace ArrayCompact") {
+ val optimizer = new SimpleTestOptimizer() {
+ override def defaultBatches: Seq[Batch] =
+ Batch("test", fixedPoint,
+ ReplaceExpressions) :: Nil
+ }
+
+ val array1 = ArrayCompact(CreateArray(Literal(1) :: Literal.apply(null) ::
Nil, false))
+ val plan1 = Project(Alias(array1, "arr")() :: Nil,
OneRowRelation()).analyze
+ val optimized1 = optimizer.execute(plan1)
+ assert(plan1.schema === optimized1.schema)
Review Comment:
before the fix, fails with
```
[info] StructType(StructField("arr", ArrayType(IntegerType, false), false,
{})) did not equal StructType(StructField("arr", ArrayType(IntegerType, true),
false, {})) (OptimizerSuite.scala:327)
[info] Analysis:
[info] StructType(0: StructField("arr", ArrayType(IntegerType, false),
false, {}) -> StructField("arr", ArrayType(IntegerType, true), false, {}))
```
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