fqaiser94 commented on a change in pull request #27066:
URL: https://github.com/apache/spark/pull/27066#discussion_r442617361
##########
File path:
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/complexTypesSuite.scala
##########
@@ -452,4 +453,91 @@ class ComplexTypesSuite extends PlanTest with
ExpressionEvalHelper {
checkEvaluation(GetMapValue(mb0, Literal(Array[Byte](2, 1), BinaryType)),
"2")
checkEvaluation(GetMapValue(mb0, Literal(Array[Byte](3, 4))), null)
}
+
+ test("simplify GetStructField on WithFields that is not changing the
attribute being extracted") {
+ val query = relation.select(
+ GetStructField(
+ WithFields('id, Seq("c"), Seq(Literal(1))),
+ 0,
+ Some("a")) as "outerAtt")
+ val expected = relation.select(GetStructField('id, 0, Some("a")) as
"outerAtt")
+
+ checkRule(query, expected)
+ }
+
+ test("simplify GetStructField on WithFields that is changing the attribute
being extracted") {
+ val query = relation.select(
+ GetStructField(
+ WithFields('id, Seq("c"), Seq(Literal(1))),
+ 0,
+ Some("c")) as "outerAtt")
+ val expected = relation.select(Literal(1) as "outerAtt")
+
+ checkRule(query, expected)
+ }
+
+ test(
+ "simplify GetStructField on WithFields that is changing the attribute
being extracted twice") {
+ val query = relation.select(
+ GetStructField(
+ WithFields('id, Seq("c", "c"), Seq(Literal(1), Literal(2))),
+ 0,
+ Some("c")) as "outerAtt")
+ val expected = relation.select(Literal(2) as "outerAtt")
+
+ checkRule(query, expected)
+ }
+
+ test("collapse multiple GetStructField on the same WithFields") {
+ val query = relation
+ .select(CreateNamedStruct(Seq("att1", 'id, "att2", 'id * 'id)) as
"struct1")
+ .select(WithFields('struct1, Seq("att3"), Seq(Literal(3))) as "struct2")
+ .select(
+ GetStructField('struct2, 0, Some("att1")) as "struct1Att1",
+ GetStructField('struct2, 1, Some("att2")) as "struct1Att2",
+ GetStructField('struct2, 2, Some("att3")) as "struct1Att3")
+
+ val expected = relation
+ .select(
+ 'id as "struct1Att1",
+ ('id * 'id) as "struct1Att2",
+ Literal(3) as "struct1Att3")
+
+ checkRule(query, expected)
+ }
+
+ test("collapse multiple GetStructField on different WithFields") {
+ val query = relation
+ .select(CreateNamedStruct(Seq("att1", 'id)) as "struct1")
+ .select(
+ WithFields('struct1, Seq("att2"), Seq(Literal(2))) as "struct2",
+ WithFields('struct1, Seq("att2"), Seq(Literal(3))) as "struct3")
+ .select(
+ GetStructField('struct2, 0, Some("att1")) as "struct2Att1",
+ GetStructField('struct2, 1, Some("att2")) as "struct2Att2",
+ GetStructField('struct3, 0, Some("att1")) as "struct3Att1",
+ GetStructField('struct3, 1, Some("att2")) as "struct3Att2")
+
+ val expected = relation
+ .select(
+ 'id as "struct2Att1",
+ Literal(2) as "struct2Att2",
+ 'id as "struct3Att1",
+ Literal(3) as "struct3Att2")
+
+ checkRule(query, expected)
+ }
+
+ test("WIP write tests for ensuring case sensitivity is respected") {
Review comment:
fixed
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