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[SPARK-23406][SS] Enable stream-stream self-joins for branch-2.3 #20755

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[SPARK-23406][SS] Enable stream-stream self-joins for branch-2.3 #20755

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20 changes: 14 additions & 6 deletions sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/StreamingRelation.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -20,9 +20,9 @@ package org.apache.spark.sql.execution.streaming
import org.apache.spark.rdd.RDD
import org.apache.spark.sql.SparkSession
import org.apache.spark.sql.catalyst.InternalRow
import org.apache.spark.sql.catalyst.analysis.MultiInstanceRelation
import org.apache.spark.sql.catalyst.expressions.Attribute
import org.apache.spark.sql.catalyst.plans.logical.LeafNode
import org.apache.spark.sql.catalyst.plans.logical.Statistics
import org.apache.spark.sql.catalyst.plans.logical.{LeafNode, LogicalPlan, Statistics}
import org.apache.spark.sql.execution.LeafExecNode
import org.apache.spark.sql.execution.datasources.DataSource
import org.apache.spark.sql.sources.v2.{ContinuousReadSupport, DataSourceV2}
Expand All @@ -42,7 +42,7 @@ object StreamingRelation {
* passing to [[StreamExecution]] to run a query.
*/
case class StreamingRelation(dataSource: DataSource, sourceName: String, output: Seq[Attribute])
extends LeafNode {
extends LeafNode with MultiInstanceRelation {
override def isStreaming: Boolean = true
override def toString: String = sourceName

Expand All @@ -53,6 +53,8 @@ case class StreamingRelation(dataSource: DataSource, sourceName: String, output:
override def computeStats(): Statistics = Statistics(
sizeInBytes = BigInt(dataSource.sparkSession.sessionState.conf.defaultSizeInBytes)
)

override def newInstance(): LogicalPlan = this.copy(output = output.map(_.newInstance()))
}

/**
Expand All @@ -62,7 +64,7 @@ case class StreamingRelation(dataSource: DataSource, sourceName: String, output:
case class StreamingExecutionRelation(
source: BaseStreamingSource,
output: Seq[Attribute])(session: SparkSession)
extends LeafNode {
extends LeafNode with MultiInstanceRelation {

override def isStreaming: Boolean = true
override def toString: String = source.toString
Expand All @@ -74,6 +76,8 @@ case class StreamingExecutionRelation(
override def computeStats(): Statistics = Statistics(
sizeInBytes = BigInt(session.sessionState.conf.defaultSizeInBytes)
)

override def newInstance(): LogicalPlan = this.copy(output = output.map(_.newInstance()))(session)
}

// We have to pack in the V1 data source as a shim, for the case when a source implements
Expand All @@ -92,13 +96,15 @@ case class StreamingRelationV2(
extraOptions: Map[String, String],
output: Seq[Attribute],
v1Relation: Option[StreamingRelation])(session: SparkSession)
extends LeafNode {
extends LeafNode with MultiInstanceRelation {
override def isStreaming: Boolean = true
override def toString: String = sourceName

override def computeStats(): Statistics = Statistics(
sizeInBytes = BigInt(session.sessionState.conf.defaultSizeInBytes)
)

override def newInstance(): LogicalPlan = this.copy(output = output.map(_.newInstance()))(session)
}

/**
Expand All @@ -108,7 +114,7 @@ case class ContinuousExecutionRelation(
source: ContinuousReadSupport,
extraOptions: Map[String, String],
output: Seq[Attribute])(session: SparkSession)
extends LeafNode {
extends LeafNode with MultiInstanceRelation {

override def isStreaming: Boolean = true
override def toString: String = source.toString
Expand All @@ -120,6 +126,8 @@ case class ContinuousExecutionRelation(
override def computeStats(): Statistics = Statistics(
sizeInBytes = BigInt(session.sessionState.conf.defaultSizeInBytes)
)

override def newInstance(): LogicalPlan = this.copy(output = output.map(_.newInstance()))(session)
}

/**
Expand Down
25 changes: 24 additions & 1 deletion sql/core/src/test/scala/org/apache/spark/sql/streaming/StreamingJoinSuite.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -28,7 +28,9 @@ import org.apache.spark.sql.{AnalysisException, DataFrame, Row, SparkSession}
import org.apache.spark.sql.catalyst.analysis.StreamingJoinHelper
import org.apache.spark.sql.catalyst.expressions.{AttributeReference, AttributeSet, Literal}
import org.apache.spark.sql.catalyst.plans.logical.{EventTimeWatermark, Filter}
import org.apache.spark.sql.execution.LogicalRDD
import org.apache.spark.sql.catalyst.trees.TreeNode
import org.apache.spark.sql.execution.{FileSourceScanExec, LogicalRDD}
import org.apache.spark.sql.execution.datasources.LogicalRelation
import org.apache.spark.sql.execution.streaming.{MemoryStream, StatefulOperatorStateInfo, StreamingSymmetricHashJoinHelper}
import org.apache.spark.sql.execution.streaming.state.{StateStore, StateStoreProviderId}
import org.apache.spark.sql.functions._
Expand Down Expand Up @@ -323,6 +325,27 @@ class StreamingInnerJoinSuite extends StreamTest with StateStoreMetricsTest with
assert(e.toString.contains("Stream stream joins without equality predicate is not supported"))
}

test("stream stream self join") {
val input = MemoryStream[Int]
val df = input.toDF
val join =
df.select('value % 5 as "key", 'value as "leftValue").join(
df.select('value % 5 as "key", 'value as "rightValue"), "key")

testStream(join)(
AddData(input, 1, 2),
CheckAnswer((1, 1, 1), (2, 2, 2)),
StopStream,
StartStream(),
AddData(input, 3, 6),
/*
(1, 1) (1, 1)
(2, 2) x (2, 2) = (1, 1, 1), (1, 1, 6), (2, 2, 2), (1, 6, 1), (1, 6, 6)
(1, 6) (1, 6)
*/
CheckAnswer((3, 3, 3), (1, 1, 1), (1, 1, 6), (2, 2, 2), (1, 6, 1), (1, 6, 6)))
}

test("locality preferences of StateStoreAwareZippedRDD") {
import StreamingSymmetricHashJoinHelper._

Expand Down