kazuyukitanimura commented on code in PR #456:
URL: https://github.com/apache/datafusion-comet/pull/456#discussion_r1608866121
##########
spark/src/main/scala/org/apache/comet/serde/QueryPlanSerde.scala:
##########
@@ -547,6 +547,26 @@ object QueryPlanSerde extends Logging with
ShimQueryPlanSerde with CometExprShim
withInfo(aggExpr, child)
None
}
+ case corr @ Corr(child1, child2, nullOnDivideByZero) =>
+ val child1Expr = exprToProto(child1, inputs, binding)
+ val child2Expr = exprToProto(child2, inputs, binding)
+ val dataType = serializeDataType(corr.dataType)
+
+ if (child1Expr.isDefined && child2Expr.isDefined &&
dataType.isDefined) {
+ val corrBuilder = ExprOuterClass.Correlation.newBuilder()
+ corrBuilder.setChild1(child1Expr.get)
+ corrBuilder.setChild2(child2Expr.get)
+ corrBuilder.setNullOnDivideByZero(nullOnDivideByZero)
+ corrBuilder.setDatatype(dataType.get)
+
+ Some(
+ ExprOuterClass.AggExpr
+ .newBuilder()
+ .setCorrelation(corrBuilder)
+ .build())
+ } else {
+ None
Review Comment:
Should we add `withInfo()`?
##########
spark/src/test/scala/org/apache/comet/exec/CometAggregateSuite.scala:
##########
@@ -1212,6 +1212,157 @@ class CometAggregateSuite extends CometTestBase with
AdaptiveSparkPlanHelper {
}
}
+ test("correlation") {
+ withSQLConf(CometConf.COMET_EXEC_SHUFFLE_ENABLED.key -> "true") {
+ Seq(false).foreach { cometColumnShuffleEnabled =>
+ withSQLConf(
+ CometConf.COMET_COLUMNAR_SHUFFLE_ENABLED.key ->
cometColumnShuffleEnabled.toString) {
+ Seq(false).foreach { dictionary =>
+ withSQLConf("parquet.enable.dictionary" -> dictionary.toString) {
+ Seq(true).foreach { nullOnDivideByZero =>
+ withSQLConf(
+ "spark.sql.legacy.statisticalAggregate" ->
nullOnDivideByZero.toString) {
+ val table = "test"
+ withTable(table) {
+ sql(
+ s"create table $table(col1 double, col2 double, col3
double) using parquet")
+ sql(s"insert into $table values(1, 4, 1), (2, 5, 1), (3,
6, 2)")
+ val expectedNumOfCometAggregates = 2
+
+ sql("SELECT corr(col1, col2) FROM test GROUP BY col3").show
Review Comment:
nit: we can reuse s`$table`
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