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Add support for arrays in hashaggregate [databricks] (NVIDIA#6066)
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* add support for arrays in hashaggregate

Signed-off-by: Raza Jafri <[email protected]>

* allow shuffle exchange on CPU

Signed-off-by: Raza Jafri <[email protected]>

* Opened up ShuffleExchangeExec for Arrays

Signed-off-by: Raza Jafri <[email protected]>

* Explicitly remove list of structs from allowed list

Signed-off-by: Raza Jafri <[email protected]>

* addressed review comments

Signed-off-by: Raza Jafri <[email protected]>

* added ps note for arrays

Signed-off-by: Raza Jafri <[email protected]>

* simplified GpuOverrides for hash_key

Signed-off-by: Raza Jafri <[email protected]>

* Added a ShuffleExec fallback test

Signed-off-by: Raza Jafri <[email protected]>

* Added a ShuffleExec fallback test

Signed-off-by: Raza Jafri <[email protected]>

* Revert "Added a ShuffleExec fallback test"

This reverts commit f26c0ff.

Signed-off-by: Raza Jafri <[email protected]>

* removed f.hash from the test

Signed-off-by: Raza Jafri <[email protected]>

* remove test for a single partition

Signed-off-by: Raza Jafri <[email protected]>

* Revert "remove test for a single partition"

This reverts commit b6bd34b.

Signed-off-by: Raza Jafri <[email protected]>

* Removed test for a single partition

Signed-off-by: Raza Jafri <[email protected]>

Signed-off-by: Raza Jafri <[email protected]>
Co-authored-by: Raza Jafri <[email protected]>
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razajafri and razajafri authored Sep 1, 2022
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72 changes: 36 additions & 36 deletions docs/supported_ops.md
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Expand Up @@ -556,7 +556,7 @@ Accelerator supports are described below.
<td>S</td>
<td><b>NS</b></td>
<td><b>NS</b></td>
<td><em>PS<br/>not allowed for grouping expressions;<br/>UTC is only supported TZ for child TIMESTAMP;<br/>unsupported child types BINARY, CALENDAR, UDT</em></td>
<td><em>PS<br/>not allowed for grouping expressions if containing Struct as child;<br/>UTC is only supported TZ for child TIMESTAMP;<br/>unsupported child types BINARY, CALENDAR, UDT</em></td>
<td><em>PS<br/>not allowed for grouping expressions;<br/>UTC is only supported TZ for child TIMESTAMP;<br/>unsupported child types BINARY, CALENDAR, UDT</em></td>
<td><em>PS<br/>not allowed for grouping expressions if containing Array or Map as child;<br/>UTC is only supported TZ for child TIMESTAMP;<br/>unsupported child types BINARY, CALENDAR, UDT</em></td>
<td><b>NS</b></td>
Expand Down Expand Up @@ -724,7 +724,7 @@ Accelerator supports are described below.
<td>S</td>
<td>S</td>
<td><b>NS</b></td>
<td><em>PS<br/>Round-robin partitioning is not supported if spark.sql.execution.sortBeforeRepartition is true;<br/>UTC is only supported TZ for child TIMESTAMP;<br/>unsupported child types CALENDAR, UDT</em></td>
<td><em>PS<br/>UTC is only supported TZ for child TIMESTAMP;<br/>unsupported child types CALENDAR, UDT</em></td>
<td><em>PS<br/>Round-robin partitioning is not supported if spark.sql.execution.sortBeforeRepartition is true;<br/>UTC is only supported TZ for child TIMESTAMP;<br/>unsupported child types CALENDAR, UDT</em></td>
<td><em>PS<br/>Round-robin partitioning is not supported for nested structs if spark.sql.execution.sortBeforeRepartition is true;<br/>UTC is only supported TZ for child TIMESTAMP;<br/>unsupported child types CALENDAR, UDT</em></td>
<td><b>NS</b></td>
Expand Down Expand Up @@ -7737,45 +7737,45 @@ are limited.
<td rowSpan="2">None</td>
<td rowSpan="2">project</td>
<td>input</td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td>S</td>
<td>S</td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td>S</td>
<td>S</td>
<td>S</td>
<td>S</td>
<td>S</td>
<td>S</td>
<td><em>PS<br/>UTC is only supported TZ for TIMESTAMP</em></td>
<td>S</td>
<td>S</td>
<td>S</td>
<td>S</td>
<td>S</td>
<td><em>PS<br/>UTC is only supported TZ for child TIMESTAMP</em></td>
<td><em>PS<br/>UTC is only supported TZ for child TIMESTAMP</em></td>
<td><em>PS<br/>UTC is only supported TZ for child TIMESTAMP</em></td>
<td>S</td>
</tr>
<tr>
<td>result</td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td>S</td>
<td>S</td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td>S</td>
<td>S</td>
<td>S</td>
<td>S</td>
<td>S</td>
<td>S</td>
<td><em>PS<br/>UTC is only supported TZ for TIMESTAMP</em></td>
<td>S</td>
<td>S</td>
<td>S</td>
<td>S</td>
<td>S</td>
<td><em>PS<br/>UTC is only supported TZ for child TIMESTAMP</em></td>
<td><em>PS<br/>UTC is only supported TZ for child TIMESTAMP</em></td>
<td><em>PS<br/>UTC is only supported TZ for child TIMESTAMP</em></td>
<td>S</td>
</tr>
<tr>
<td rowSpan="2">KnownNotNull</td>
Expand Down Expand Up @@ -18594,9 +18594,9 @@ as `a` don't show up in the table. They are controlled by the rules for
<td>S</td>
<td><b>NS</b></td>
<td><b>NS</b></td>
<td><em>PS<br/>UTC is only supported TZ for child TIMESTAMP;<br/>unsupported child types BINARY, CALENDAR, MAP, UDT</em></td>
<td><b>NS</b></td>
<td><b>NS</b></td>
<td><em>PS<br/>UTC is only supported TZ for child TIMESTAMP;<br/>unsupported child types BINARY, CALENDAR, ARRAY, MAP, UDT</em></td>
<td><em>PS<br/>UTC is only supported TZ for child TIMESTAMP;<br/>unsupported child types BINARY, CALENDAR, MAP, UDT</em></td>
<td><b>NS</b></td>
</tr>
<tr>
Expand Down
15 changes: 14 additions & 1 deletion integration_tests/src/main/python/hash_aggregate_test.py
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Expand Up @@ -128,6 +128,19 @@
('b', FloatGen(nullable=(True, 10.0), special_cases=[(float('nan'), 10.0)])),
('c', LongGen())]

# grouping single-level lists
_grpkey_list_with_non_nested_children = [[('a', RepeatSeqGen(ArrayGen(data_gen), length=3)),
('b', IntegerGen())] for data_gen in all_basic_gens + decimal_gens]

#grouping mutliple-level structs with arrays
_grpkey_nested_structs_with_array_basic_child = [
('a', RepeatSeqGen(StructGen([
['aa', IntegerGen()],
['ab', ArrayGen(IntegerGen())]]),
length=20)),
('b', IntegerGen()),
('c', NullGen())]

_nan_zero_float_special_cases = [
(float('nan'), 5.0),
(NEG_FLOAT_NAN_MIN_VALUE, 5.0),
Expand Down Expand Up @@ -335,7 +348,7 @@ def test_hash_reduction_decimal_overflow_sum(precision):
# some optimizations are conspiring against us.
conf = {'spark.rapids.sql.batchSizeBytes': '128m'})

@pytest.mark.parametrize('data_gen', [_longs_with_nulls], ids=idfn)
@pytest.mark.parametrize('data_gen', [_grpkey_nested_structs_with_array_basic_child, _longs_with_nulls] + _grpkey_list_with_non_nested_children, ids=idfn)
def test_hash_grpby_sum_count_action(data_gen):
assert_gpu_and_cpu_row_counts_equal(
lambda spark: gen_df(spark, data_gen, length=100).groupby('a').agg(f.sum('b'))
Expand Down
15 changes: 14 additions & 1 deletion integration_tests/src/main/python/repart_test.py
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Original file line number Diff line number Diff line change
Expand Up @@ -214,10 +214,23 @@ def test_round_robin_sort_fallback(data_gen):
lambda spark : gen_df(spark, data_gen).withColumn('extra', lit(1)).repartition(13),
'ShuffleExchangeExec')

@allow_non_gpu("ProjectExec", "ShuffleExchangeExec")
@ignore_order(local=True) # To avoid extra data shuffle by 'sort on Spark' for this repartition test.
@pytest.mark.parametrize('num_parts', [2, 10, 17, 19, 32], ids=idfn)
@pytest.mark.parametrize('gen', [([('ag', ArrayGen(StructGen([('b1', long_gen)])))], ['ag'])], ids=idfn)
def test_hash_repartition_exact_fallback(gen, num_parts):
data_gen = gen[0]
part_on = gen[1]
assert_gpu_fallback_collect(
lambda spark : gen_df(spark, data_gen, length=1024) \
.repartition(num_parts, *part_on) \
.withColumn('id', f.spark_partition_id()) \
.selectExpr('*'), "ShuffleExchangeExec")

@ignore_order(local=True) # To avoid extra data shuffle by 'sort on Spark' for this repartition test.
@pytest.mark.parametrize('num_parts', [1, 2, 10, 17, 19, 32], ids=idfn)
@pytest.mark.parametrize('gen', [
([('a', boolean_gen)], ['a']),
([('a', boolean_gen)], ['a']),
([('a', byte_gen)], ['a']),
([('a', short_gen)], ['a']),
([('a', int_gen)], ['a']),
Expand Down
29 changes: 22 additions & 7 deletions sql-plugin/src/main/scala/com/nvidia/spark/rapids/GpuOverrides.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -1645,9 +1645,7 @@ object GpuOverrides extends Logging {
}),
expr[KnownFloatingPointNormalized](
"Tag to prevent redundant normalization",
ExprChecks.unaryProjectInputMatchesOutput(
TypeSig.DOUBLE + TypeSig.FLOAT,
TypeSig.DOUBLE + TypeSig.FLOAT),
ExprChecks.unaryProjectInputMatchesOutput(TypeSig.all, TypeSig.all),
(a, conf, p, r) => new UnaryExprMeta[KnownFloatingPointNormalized](a, conf, p, r) {
override def convertToGpu(child: Expression): GpuExpression =
GpuKnownFloatingPointNormalized(child)
Expand Down Expand Up @@ -3692,11 +3690,26 @@ object GpuOverrides extends Logging {
// This needs to match what murmur3 supports.
PartChecks(RepeatingParamCheck("hash_key",
(TypeSig.commonCudfTypes + TypeSig.NULL + TypeSig.DECIMAL_128 +
TypeSig.STRUCT).nested(), TypeSig.all)),
TypeSig.STRUCT + TypeSig.ARRAY).nested(),
TypeSig.all)
),
(hp, conf, p, r) => new PartMeta[HashPartitioning](hp, conf, p, r) {
override val childExprs: Seq[BaseExprMeta[_]] =
hp.expressions.map(GpuOverrides.wrapExpr(_, conf, Some(this)))

override def tagPartForGpu(): Unit = {
val arrayWithStructsHashing = hp.expressions.exists(e =>
TrampolineUtil.dataTypeExistsRecursively(e.dataType,
dt => dt match {
case ArrayType(_: StructType, _) => true
case _ => false
})
)
if (arrayWithStructsHashing) {
willNotWorkOnGpu("hashing arrays with structs is not supported")
}
}

override def convertToGpu(): GpuPartitioning =
GpuHashPartitioning(childExprs.map(_.convertToGpu()), hp.numPartitions)
}),
Expand Down Expand Up @@ -3912,7 +3925,7 @@ object GpuOverrides extends Logging {
.withPsNote(TypeEnum.STRUCT, "Round-robin partitioning is not supported for nested " +
s"structs if ${SQLConf.SORT_BEFORE_REPARTITION.key} is true")
.withPsNote(
Seq(TypeEnum.ARRAY, TypeEnum.MAP),
Seq(TypeEnum.MAP),
"Round-robin partitioning is not supported if " +
s"${SQLConf.SORT_BEFORE_REPARTITION.key} is true"),
TypeSig.all),
Expand Down Expand Up @@ -3974,10 +3987,12 @@ object GpuOverrides extends Logging {
"The backend for hash based aggregations",
ExecChecks(
(TypeSig.commonCudfTypes + TypeSig.NULL + TypeSig.DECIMAL_128 +
TypeSig.MAP + TypeSig.ARRAY + TypeSig.STRUCT)
TypeSig.MAP + TypeSig.STRUCT + TypeSig.ARRAY)
.nested()
.withPsNote(Seq(TypeEnum.ARRAY, TypeEnum.MAP),
.withPsNote(TypeEnum.MAP,
"not allowed for grouping expressions")
.withPsNote(TypeEnum.ARRAY,
"not allowed for grouping expressions if containing Struct as child")
.withPsNote(TypeEnum.STRUCT,
"not allowed for grouping expressions if containing Array or Map as child"),
TypeSig.all),
Expand Down
26 changes: 20 additions & 6 deletions sql-plugin/src/main/scala/com/nvidia/spark/rapids/aggregate.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -42,7 +42,7 @@ import org.apache.spark.sql.execution.{ExplainUtils, SortExec, SparkPlan}
import org.apache.spark.sql.execution.aggregate.{BaseAggregateExec, HashAggregateExec, ObjectHashAggregateExec, SortAggregateExec}
import org.apache.spark.sql.rapids.{CpuToGpuAggregateBufferConverter, CudfAggregate, GpuAggregateExpression, GpuToCpuAggregateBufferConverter}
import org.apache.spark.sql.rapids.execution.{GpuShuffleMeta, TrampolineUtil}
import org.apache.spark.sql.types.{ArrayType, DataType, MapType}
import org.apache.spark.sql.types.{ArrayType, DataType, MapType, StructType}
import org.apache.spark.sql.vectorized.ColumnarBatch

object AggregateUtils {
Expand Down Expand Up @@ -852,13 +852,27 @@ abstract class GpuBaseAggregateMeta[INPUT <: SparkPlan](
groupingExpressions ++ aggregateExpressions ++ aggregateAttributes ++ resultExpressions

override def tagPlanForGpu(): Unit = {
// We don't support Arrays and Maps as GroupBy keys yet, even they are nested in Structs. So,
// We don't support Maps as GroupBy keys yet, even if they are nested in Structs. So,
// we need to run recursive type check on the structs.
val arrayOrMapGroupings = agg.groupingExpressions.exists(e =>
val mapGroupings = agg.groupingExpressions.exists(e =>
TrampolineUtil.dataTypeExistsRecursively(e.dataType,
dt => dt.isInstanceOf[ArrayType] || dt.isInstanceOf[MapType]))
if (arrayOrMapGroupings) {
willNotWorkOnGpu("ArrayTypes or MapTypes in grouping expressions are not supported")
dt => dt.isInstanceOf[MapType]))
if (mapGroupings) {
willNotWorkOnGpu("MapTypes in grouping expressions are not supported")
}

// We support Arrays as grouping expression but not if the child is a struct. So we need to
// run recursive type check on the lists of structs
val arrayWithStructsGroupings = agg.groupingExpressions.exists(e =>
TrampolineUtil.dataTypeExistsRecursively(e.dataType,
dt => dt match {
case ArrayType(_: StructType, _) => true
case _ => false
})
)
if (arrayWithStructsGroupings) {
willNotWorkOnGpu("ArrayTypes with Struct children in grouping expressions are not " +
"supported")
}

tagForReplaceMode()
Expand Down
4 changes: 2 additions & 2 deletions tools/src/main/resources/supportedExprs.csv
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Original file line number Diff line number Diff line change
Expand Up @@ -263,8 +263,8 @@ IsNull,S,`isnull`,None,project,input,S,S,S,S,S,S,S,S,PS,S,S,S,S,NS,PS,PS,PS,NS
IsNull,S,`isnull`,None,project,result,S,NA,NA,NA,NA,NA,NA,NA,NA,NA,NA,NA,NA,NA,NA,NA,NA,NA
JsonToStructs,NS,`from_json`,This is disabled by default because parsing JSON from a column has a large number of issues and should be considered beta quality right now.,project,jsonStr,NA,NA,NA,NA,NA,NA,NA,NA,NA,S,NA,NA,NA,NA,NA,NA,NA,NA
JsonToStructs,NS,`from_json`,This is disabled by default because parsing JSON from a column has a large number of issues and should be considered beta quality right now.,project,result,NA,NA,NA,NA,NA,NA,NA,NA,NA,NA,NA,NA,NA,NA,NS,PS,NS,NA
KnownFloatingPointNormalized,S, ,None,project,input,NA,NA,NA,NA,NA,S,S,NA,NA,NA,NA,NA,NA,NA,NA,NA,NA,NA
KnownFloatingPointNormalized,S, ,None,project,result,NA,NA,NA,NA,NA,S,S,NA,NA,NA,NA,NA,NA,NA,NA,NA,NA,NA
KnownFloatingPointNormalized,S, ,None,project,input,S,S,S,S,S,S,S,S,PS,S,S,S,S,S,PS,PS,PS,S
KnownFloatingPointNormalized,S, ,None,project,result,S,S,S,S,S,S,S,S,PS,S,S,S,S,S,PS,PS,PS,S
KnownNotNull,S, ,None,project,input,S,S,S,S,S,S,S,S,PS,S,S,NS,S,S,PS,PS,PS,NS
KnownNotNull,S, ,None,project,result,S,S,S,S,S,S,S,S,PS,S,S,NS,S,S,PS,PS,PS,NS
Lag,S,`lag`,None,window,input,S,S,S,S,S,S,S,S,PS,S,S,S,NS,NS,PS,NS,PS,NS
Expand Down

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