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fix: Unsupported window expression should fall back to Spark #710

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merged 1 commit into from
Jul 24, 2024
Merged

fix: Unsupported window expression should fall back to Spark #710

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6 changes: 5 additions & 1 deletion spark/src/main/scala/org/apache/comet/serde/QueryPlanSerde.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -2535,8 +2535,12 @@ object QueryPlanSerde extends Logging with ShimQueryPlanSerde with CometExprShim
}
}.toArray

val windowExprProto = winExprs.map(windowExprToProto(_, output))
if (winExprs.length != windowExpression.length) {
withInfo(op, "Unsupported window expression(s)")
return None
}

val windowExprProto = winExprs.map(windowExprToProto(_, output))
val partitionExprs = partitionSpec.map(exprToProto(_, child.output))

val sortOrders = orderSpec.map(exprToProto(_, child.output))
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9 changes: 9 additions & 0 deletions spark/src/test/scala/org/apache/comet/exec/CometExecSuite.scala
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Expand Up @@ -63,6 +63,15 @@ class CometExecSuite extends CometTestBase {
}
}

test("Unsupported window expression should fall back to Spark") {
checkAnswer(
spark.sql("select sum(a) over () from values 1.0, 2.0, 3.0 T(a)"),
Row(6.0) :: Row(6.0) :: Row(6.0) :: Nil)
checkAnswer(
spark.sql("select avg(a) over () from values 1.0, 2.0, 3.0 T(a)"),
Row(2.0) :: Row(2.0) :: Row(2.0) :: Nil)
}

test("fix CometNativeExec.doCanonicalize for ReusedExchangeExec") {
assume(isSpark34Plus, "ChunkedByteBuffer is not serializable before Spark 3.4+")
withSQLConf(
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