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[SPARK-21980][SQL]References in grouping functions should be indexed with semanticEquals #19202

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[SPARK-21980][SQL]References in grouping functions should be indexed with semanticEquals #19202

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ac61a66
SPARK-21980
DonnyZone Sep 12, 2017
b08fd93
rename
DonnyZone Sep 12, 2017
e24fdb8
use semanticEquals
DonnyZone Sep 13, 2017
09efc4d
test name
DonnyZone Sep 13, 2017
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SPARK-21980
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@DonnyZone
DonnyZone committed Sep 12, 2017
commit ac61a6620e59447c575092bee5d4d7f0af99695c
2 changes: 1 addition & 1 deletion sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala
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Expand Up @@ -314,7 +314,7 @@ class Analyzer(
s"grouping columns (${groupByExprs.mkString(",")})")
}
case e @ Grouping(col: Expression) =>
val idx = groupByExprs.indexOf(col)
val idx = groupByExprs.indexWhere(e => resolver(e.toString, col.toString))
if (idx >= 0) {
Alias(Cast(BitwiseAnd(ShiftRight(gid, Literal(groupByExprs.length - 1 - idx)),
Literal(1)), ByteType), toPrettySQL(e))()
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16 changes: 16 additions & 0 deletions sql/core/src/test/scala/org/apache/spark/sql/DataFrameAggregateSuite.scala
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Expand Up @@ -190,6 +190,22 @@ class DataFrameAggregateSuite extends QueryTest with SharedSQLContext {
)
}

test("SPARK-21980: References in grouping functions should be indexed with resolver") {
checkAnswer(
courseSales.cube("course", "year")
.agg(grouping("CouRse"), grouping("year")),
Row("Java", 2012, 0, 0) ::
Row("Java", 2013, 0, 0) ::
Row("Java", null, 0, 1) ::
Row("dotNET", 2012, 0, 0) ::
Row("dotNET", 2013, 0, 0) ::
Row("dotNET", null, 0, 1) ::
Row(null, 2012, 1, 0) ::
Row(null, 2013, 1, 0) ::
Row(null, null, 1, 1) :: Nil
)
}

test("rollup overlapping columns") {
checkAnswer(
testData2.rollup($"a" + $"b" as "foo", $"b" as "bar").agg(sum($"a" - $"b") as "foo"),
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