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Posted to commits@spark.apache.org by da...@apache.org on 2016/03/25 17:05:31 UTC
spark git commit: [SPARK-13919] [SQL] fix column pruning through
filter
Repository: spark
Updated Branches:
refs/heads/master 55a605763 -> 6603d9f7e
[SPARK-13919] [SQL] fix column pruning through filter
## What changes were proposed in this pull request?
This PR fix the conflict between ColumnPruning and PushPredicatesThroughProject, because ColumnPruning will try to insert a Project before Filter, but PushPredicatesThroughProject will move the Filter before Project.This is fixed by remove the Project before Filter, if the Project only do column pruning.
The RuleExecutor will fail the test if reached max iterations.
Closes #11745
## How was this patch tested?
Existing tests.
This is a test case still failing, disabled for now, will be fixed by https://issues.apache.org/jira/browse/SPARK-14137
Author: Davies Liu <da...@databricks.com>
Closes #11828 from davies/fail_rule.
Project: http://git-wip-us.apache.org/repos/asf/spark/repo
Commit: http://git-wip-us.apache.org/repos/asf/spark/commit/6603d9f7
Tree: http://git-wip-us.apache.org/repos/asf/spark/tree/6603d9f7
Diff: http://git-wip-us.apache.org/repos/asf/spark/diff/6603d9f7
Branch: refs/heads/master
Commit: 6603d9f7e283cf8199cfddfeea30d9db39669726
Parents: 55a6057
Author: Davies Liu <da...@databricks.com>
Authored: Fri Mar 25 09:05:23 2016 -0700
Committer: Davies Liu <da...@gmail.com>
Committed: Fri Mar 25 09:05:23 2016 -0700
----------------------------------------------------------------------
.../spark/sql/catalyst/analysis/Analyzer.scala | 162 +++++++++----------
.../sql/catalyst/optimizer/Optimizer.scala | 28 ++--
.../spark/sql/catalyst/rules/RuleExecutor.scala | 9 +-
.../sql/catalyst/analysis/AnalysisSuite.scala | 2 +-
.../catalyst/optimizer/ColumnPruningSuite.scala | 17 +-
.../sql/catalyst/trees/RuleExecutorSuite.scala | 7 +-
.../hive/execution/HiveCompatibilitySuite.scala | 4 +-
7 files changed, 124 insertions(+), 105 deletions(-)
----------------------------------------------------------------------
http://git-wip-us.apache.org/repos/asf/spark/blob/6603d9f7/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala
----------------------------------------------------------------------
diff --git a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala
index 89b18af..3b83e68 100644
--- a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala
+++ b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala
@@ -80,7 +80,6 @@ class Analyzer(
EliminateUnions),
Batch("Resolution", fixedPoint,
ResolveRelations ::
- ResolveStar ::
ResolveReferences ::
ResolveGroupingAnalytics ::
ResolvePivot ::
@@ -375,91 +374,6 @@ class Analyzer(
}
/**
- * Expand [[UnresolvedStar]] or [[ResolvedStar]] to the matching attributes in child's output.
- */
- object ResolveStar extends Rule[LogicalPlan] {
-
- def apply(plan: LogicalPlan): LogicalPlan = plan resolveOperators {
- case p: LogicalPlan if !p.childrenResolved => p
- // If the projection list contains Stars, expand it.
- case p: Project if containsStar(p.projectList) =>
- p.copy(projectList = buildExpandedProjectList(p.projectList, p.child))
- // If the aggregate function argument contains Stars, expand it.
- case a: Aggregate if containsStar(a.aggregateExpressions) =>
- if (conf.groupByOrdinal && a.groupingExpressions.exists(IntegerIndex.unapply(_).nonEmpty)) {
- failAnalysis(
- "Group by position: star is not allowed to use in the select list " +
- "when using ordinals in group by")
- } else {
- a.copy(aggregateExpressions = buildExpandedProjectList(a.aggregateExpressions, a.child))
- }
- // If the script transformation input contains Stars, expand it.
- case t: ScriptTransformation if containsStar(t.input) =>
- t.copy(
- input = t.input.flatMap {
- case s: Star => s.expand(t.child, resolver)
- case o => o :: Nil
- }
- )
- case g: Generate if containsStar(g.generator.children) =>
- failAnalysis("Invalid usage of '*' in explode/json_tuple/UDTF")
- }
-
- /**
- * Build a project list for Project/Aggregate and expand the star if possible
- */
- private def buildExpandedProjectList(
- exprs: Seq[NamedExpression],
- child: LogicalPlan): Seq[NamedExpression] = {
- exprs.flatMap {
- // Using Dataframe/Dataset API: testData2.groupBy($"a", $"b").agg($"*")
- case s: Star => s.expand(child, resolver)
- // Using SQL API without running ResolveAlias: SELECT * FROM testData2 group by a, b
- case UnresolvedAlias(s: Star, _) => s.expand(child, resolver)
- case o if containsStar(o :: Nil) => expandStarExpression(o, child) :: Nil
- case o => o :: Nil
- }.map(_.asInstanceOf[NamedExpression])
- }
-
- /**
- * Returns true if `exprs` contains a [[Star]].
- */
- def containsStar(exprs: Seq[Expression]): Boolean =
- exprs.exists(_.collect { case _: Star => true }.nonEmpty)
-
- /**
- * Expands the matching attribute.*'s in `child`'s output.
- */
- def expandStarExpression(expr: Expression, child: LogicalPlan): Expression = {
- expr.transformUp {
- case f1: UnresolvedFunction if containsStar(f1.children) =>
- f1.copy(children = f1.children.flatMap {
- case s: Star => s.expand(child, resolver)
- case o => o :: Nil
- })
- case c: CreateStruct if containsStar(c.children) =>
- c.copy(children = c.children.flatMap {
- case s: Star => s.expand(child, resolver)
- case o => o :: Nil
- })
- case c: CreateArray if containsStar(c.children) =>
- c.copy(children = c.children.flatMap {
- case s: Star => s.expand(child, resolver)
- case o => o :: Nil
- })
- case p: Murmur3Hash if containsStar(p.children) =>
- p.copy(children = p.children.flatMap {
- case s: Star => s.expand(child, resolver)
- case o => o :: Nil
- })
- // count(*) has been replaced by count(1)
- case o if containsStar(o.children) =>
- failAnalysis(s"Invalid usage of '*' in expression '${o.prettyName}'")
- }
- }
- }
-
- /**
* Replaces [[UnresolvedAttribute]]s with concrete [[AttributeReference]]s from
* a logical plan node's children.
*/
@@ -525,6 +439,29 @@ class Analyzer(
def apply(plan: LogicalPlan): LogicalPlan = plan resolveOperators {
case p: LogicalPlan if !p.childrenResolved => p
+ // If the projection list contains Stars, expand it.
+ case p: Project if containsStar(p.projectList) =>
+ p.copy(projectList = buildExpandedProjectList(p.projectList, p.child))
+ // If the aggregate function argument contains Stars, expand it.
+ case a: Aggregate if containsStar(a.aggregateExpressions) =>
+ if (conf.groupByOrdinal && a.groupingExpressions.exists(IntegerIndex.unapply(_).nonEmpty)) {
+ failAnalysis(
+ "Group by position: star is not allowed to use in the select list " +
+ "when using ordinals in group by")
+ } else {
+ a.copy(aggregateExpressions = buildExpandedProjectList(a.aggregateExpressions, a.child))
+ }
+ // If the script transformation input contains Stars, expand it.
+ case t: ScriptTransformation if containsStar(t.input) =>
+ t.copy(
+ input = t.input.flatMap {
+ case s: Star => s.expand(t.child, resolver)
+ case o => o :: Nil
+ }
+ )
+ case g: Generate if containsStar(g.generator.children) =>
+ failAnalysis("Invalid usage of '*' in explode/json_tuple/UDTF")
+
// To resolve duplicate expression IDs for Join and Intersect
case j @ Join(left, right, _, _) if !j.duplicateResolved =>
j.copy(right = dedupRight(left, right))
@@ -619,6 +556,59 @@ class Analyzer(
def findAliases(projectList: Seq[NamedExpression]): AttributeSet = {
AttributeSet(projectList.collect { case a: Alias => a.toAttribute })
}
+
+ /**
+ * Build a project list for Project/Aggregate and expand the star if possible
+ */
+ private def buildExpandedProjectList(
+ exprs: Seq[NamedExpression],
+ child: LogicalPlan): Seq[NamedExpression] = {
+ exprs.flatMap {
+ // Using Dataframe/Dataset API: testData2.groupBy($"a", $"b").agg($"*")
+ case s: Star => s.expand(child, resolver)
+ // Using SQL API without running ResolveAlias: SELECT * FROM testData2 group by a, b
+ case UnresolvedAlias(s: Star, _) => s.expand(child, resolver)
+ case o if containsStar(o :: Nil) => expandStarExpression(o, child) :: Nil
+ case o => o :: Nil
+ }.map(_.asInstanceOf[NamedExpression])
+ }
+
+ /**
+ * Returns true if `exprs` contains a [[Star]].
+ */
+ def containsStar(exprs: Seq[Expression]): Boolean =
+ exprs.exists(_.collect { case _: Star => true }.nonEmpty)
+
+ /**
+ * Expands the matching attribute.*'s in `child`'s output.
+ */
+ def expandStarExpression(expr: Expression, child: LogicalPlan): Expression = {
+ expr.transformUp {
+ case f1: UnresolvedFunction if containsStar(f1.children) =>
+ f1.copy(children = f1.children.flatMap {
+ case s: Star => s.expand(child, resolver)
+ case o => o :: Nil
+ })
+ case c: CreateStruct if containsStar(c.children) =>
+ c.copy(children = c.children.flatMap {
+ case s: Star => s.expand(child, resolver)
+ case o => o :: Nil
+ })
+ case c: CreateArray if containsStar(c.children) =>
+ c.copy(children = c.children.flatMap {
+ case s: Star => s.expand(child, resolver)
+ case o => o :: Nil
+ })
+ case p: Murmur3Hash if containsStar(p.children) =>
+ p.copy(children = p.children.flatMap {
+ case s: Star => s.expand(child, resolver)
+ case o => o :: Nil
+ })
+ // count(*) has been replaced by count(1)
+ case o if containsStar(o.children) =>
+ failAnalysis(s"Invalid usage of '*' in expression '${o.prettyName}'")
+ }
+ }
}
protected[sql] def resolveExpression(
http://git-wip-us.apache.org/repos/asf/spark/blob/6603d9f7/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala
----------------------------------------------------------------------
diff --git a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala
index 4cfdcf9..a7a948e 100644
--- a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala
+++ b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala
@@ -306,21 +306,21 @@ object SetOperationPushDown extends Rule[LogicalPlan] with PredicateHelper {
}
/**
- * Attempts to eliminate the reading of unneeded columns from the query plan using the following
- * transformations:
+ * Attempts to eliminate the reading of unneeded columns from the query plan.
*
- * - Inserting Projections beneath the following operators:
- * - Aggregate
- * - Generate
- * - Project <- Join
- * - LeftSemiJoin
+ * Since adding Project before Filter conflicts with PushPredicatesThroughProject, this rule will
+ * remove the Project p2 in the following pattern:
+ *
+ * p1 @ Project(_, Filter(_, p2 @ Project(_, child))) if p2.outputSet.subsetOf(p2.inputSet)
+ *
+ * p2 is usually inserted by this rule and useless, p1 could prune the columns anyway.
*/
object ColumnPruning extends Rule[LogicalPlan] {
private def sameOutput(output1: Seq[Attribute], output2: Seq[Attribute]): Boolean =
output1.size == output2.size &&
output1.zip(output2).forall(pair => pair._1.semanticEquals(pair._2))
- def apply(plan: LogicalPlan): LogicalPlan = plan transform {
+ def apply(plan: LogicalPlan): LogicalPlan = removeProjectBeforeFilter(plan transform {
// Prunes the unused columns from project list of Project/Aggregate/Expand
case p @ Project(_, p2: Project) if (p2.outputSet -- p.references).nonEmpty =>
p.copy(child = p2.copy(projectList = p2.projectList.filter(p.references.contains)))
@@ -399,7 +399,7 @@ object ColumnPruning extends Rule[LogicalPlan] {
} else {
p
}
- }
+ })
/** Applies a projection only when the child is producing unnecessary attributes */
private def prunedChild(c: LogicalPlan, allReferences: AttributeSet) =
@@ -408,6 +408,16 @@ object ColumnPruning extends Rule[LogicalPlan] {
} else {
c
}
+
+ /**
+ * The Project before Filter is not necessary but conflict with PushPredicatesThroughProject,
+ * so remove it.
+ */
+ private def removeProjectBeforeFilter(plan: LogicalPlan): LogicalPlan = plan transform {
+ case p1 @ Project(_, f @ Filter(_, p2 @ Project(_, child)))
+ if p2.outputSet.subsetOf(child.outputSet) =>
+ p1.copy(child = f.copy(child = child))
+ }
}
/**
http://git-wip-us.apache.org/repos/asf/spark/blob/6603d9f7/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/rules/RuleExecutor.scala
----------------------------------------------------------------------
diff --git a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/rules/RuleExecutor.scala b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/rules/RuleExecutor.scala
index 8e30349..6fc828f 100644
--- a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/rules/RuleExecutor.scala
+++ b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/rules/RuleExecutor.scala
@@ -22,8 +22,10 @@ import scala.collection.JavaConverters._
import com.google.common.util.concurrent.AtomicLongMap
import org.apache.spark.internal.Logging
+import org.apache.spark.sql.catalyst.errors.TreeNodeException
import org.apache.spark.sql.catalyst.trees.TreeNode
import org.apache.spark.sql.catalyst.util.sideBySide
+import org.apache.spark.util.Utils
object RuleExecutor {
protected val timeMap = AtomicLongMap.create[String]()
@@ -98,7 +100,12 @@ abstract class RuleExecutor[TreeType <: TreeNode[_]] extends Logging {
if (iteration > batch.strategy.maxIterations) {
// Only log if this is a rule that is supposed to run more than once.
if (iteration != 2) {
- logInfo(s"Max iterations (${iteration - 1}) reached for batch ${batch.name}")
+ val message = s"Max iterations (${iteration - 1}) reached for batch ${batch.name}"
+ if (Utils.isTesting) {
+ throw new TreeNodeException(curPlan, message, null)
+ } else {
+ logWarning(message)
+ }
}
continue = false
}
http://git-wip-us.apache.org/repos/asf/spark/blob/6603d9f7/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/analysis/AnalysisSuite.scala
----------------------------------------------------------------------
diff --git a/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/analysis/AnalysisSuite.scala b/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/analysis/AnalysisSuite.scala
index 346e052..a63d177 100644
--- a/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/analysis/AnalysisSuite.scala
+++ b/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/analysis/AnalysisSuite.scala
@@ -29,7 +29,7 @@ class AnalysisSuite extends AnalysisTest {
import org.apache.spark.sql.catalyst.analysis.TestRelations._
test("union project *") {
- val plan = (1 to 100)
+ val plan = (1 to 120)
.map(_ => testRelation)
.fold[LogicalPlan](testRelation) { (a, b) =>
a.select(UnresolvedStar(None)).select('a).union(b.select(UnresolvedStar(None)))
http://git-wip-us.apache.org/repos/asf/spark/blob/6603d9f7/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/ColumnPruningSuite.scala
----------------------------------------------------------------------
diff --git a/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/ColumnPruningSuite.scala b/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/ColumnPruningSuite.scala
index dd7d65d..2248e03 100644
--- a/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/ColumnPruningSuite.scala
+++ b/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/ColumnPruningSuite.scala
@@ -34,6 +34,7 @@ class ColumnPruningSuite extends PlanTest {
object Optimize extends RuleExecutor[LogicalPlan] {
val batches = Batch("Column pruning", FixedPoint(100),
+ PushPredicateThroughProject,
ColumnPruning,
CollapseProject) :: Nil
}
@@ -133,12 +134,16 @@ class ColumnPruningSuite extends PlanTest {
test("Column pruning on Filter") {
val input = LocalRelation('a.int, 'b.string, 'c.double)
+ val plan1 = Filter('a > 1, input).analyze
+ comparePlans(Optimize.execute(plan1), plan1)
val query = Project('a :: Nil, Filter('c > Literal(0.0), input)).analyze
- val expected =
- Project('a :: Nil,
- Filter('c > Literal(0.0),
- Project(Seq('a, 'c), input))).analyze
- comparePlans(Optimize.execute(query), expected)
+ comparePlans(Optimize.execute(query), query)
+ val plan2 = Filter('b > 1, Project(Seq('a, 'b), input)).analyze
+ val expected2 = Project(Seq('a, 'b), Filter('b > 1, input)).analyze
+ comparePlans(Optimize.execute(plan2), expected2)
+ val plan3 = Project(Seq('a), Filter('b > 1, Project(Seq('a, 'b), input))).analyze
+ val expected3 = Project(Seq('a), Filter('b > 1, input)).analyze
+ comparePlans(Optimize.execute(plan3), expected3)
}
test("Column pruning on except/intersect/distinct") {
@@ -297,7 +302,7 @@ class ColumnPruningSuite extends PlanTest {
SortOrder('b, Ascending) :: Nil,
UnspecifiedFrame)).as('window) :: Nil,
'a :: Nil, 'b.asc :: Nil)
- .select('a, 'c, 'window).where('window > 1).select('a, 'c).analyze
+ .where('window > 1).select('a, 'c).analyze
val optimized = Optimize.execute(originalQuery.analyze)
http://git-wip-us.apache.org/repos/asf/spark/blob/6603d9f7/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/trees/RuleExecutorSuite.scala
----------------------------------------------------------------------
diff --git a/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/trees/RuleExecutorSuite.scala b/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/trees/RuleExecutorSuite.scala
index a7de7b0..c9d3691 100644
--- a/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/trees/RuleExecutorSuite.scala
+++ b/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/trees/RuleExecutorSuite.scala
@@ -18,7 +18,9 @@
package org.apache.spark.sql.catalyst.trees
import org.apache.spark.SparkFunSuite
+import org.apache.spark.sql.catalyst.errors.TreeNodeException
import org.apache.spark.sql.catalyst.expressions.{Expression, IntegerLiteral, Literal}
+import org.apache.spark.sql.catalyst.plans.logical.LogicalPlan
import org.apache.spark.sql.catalyst.rules.{Rule, RuleExecutor}
class RuleExecutorSuite extends SparkFunSuite {
@@ -49,6 +51,9 @@ class RuleExecutorSuite extends SparkFunSuite {
val batches = Batch("fixedPoint", FixedPoint(10), DecrementLiterals) :: Nil
}
- assert(ToFixedPoint.execute(Literal(100)) === Literal(90))
+ val message = intercept[TreeNodeException[LogicalPlan]] {
+ ToFixedPoint.execute(Literal(100))
+ }.getMessage
+ assert(message.contains("Max iterations (10) reached for batch fixedPoint"))
}
}
http://git-wip-us.apache.org/repos/asf/spark/blob/6603d9f7/sql/hive/compatibility/src/test/scala/org/apache/spark/sql/hive/execution/HiveCompatibilitySuite.scala
----------------------------------------------------------------------
diff --git a/sql/hive/compatibility/src/test/scala/org/apache/spark/sql/hive/execution/HiveCompatibilitySuite.scala b/sql/hive/compatibility/src/test/scala/org/apache/spark/sql/hive/execution/HiveCompatibilitySuite.scala
index 650797f..8bd731d 100644
--- a/sql/hive/compatibility/src/test/scala/org/apache/spark/sql/hive/execution/HiveCompatibilitySuite.scala
+++ b/sql/hive/compatibility/src/test/scala/org/apache/spark/sql/hive/execution/HiveCompatibilitySuite.scala
@@ -341,6 +341,9 @@ class HiveCompatibilitySuite extends HiveQueryFileTest with BeforeAndAfter {
"udf_round_3",
"view_cast",
+ // enable this after fixing SPARK-14137
+ "union20",
+
// These tests check the VIEW table definition, but Spark handles CREATE VIEW itself and
// generates different View Expanded Text.
"alter_view_as_select",
@@ -1043,7 +1046,6 @@ class HiveCompatibilitySuite extends HiveQueryFileTest with BeforeAndAfter {
"union18",
"union19",
"union2",
- "union20",
"union22",
"union23",
"union24",
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