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[SPARK-25784][SQL] Infer filters from constraints after rewriting predicate subquery #22778

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[SPARK-25784][SQL] Infer filters from constraints after rewriting predicate subquery #22778

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c8d1b91
Infer filters from constraints after rewriting predicate subquery
wangyum Oct 20, 2018
6596327
Add PushDownPredicate
wangyum Oct 20, 2018
db519c3
Add CombineFilters
wangyum Oct 30, 2018
80bf621
Add PruneFilters: q4, q11 and q74 can reproduce this issue
wangyum Oct 31, 2018
d41df58
Merge remote-tracking branch 'upstream/master' into SPARK-25784
wangyum Aug 28, 2020
6b2a2da
Merge upstream
wangyum Aug 28, 2020
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7 changes: 6 additions & 1 deletion sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala
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Expand Up @@ -52,6 +52,7 @@ abstract class Optimizer(catalogManager: CatalogManager)
override protected val excludedOnceBatches: Set[String] =
Set(
"PartitionPruning",
"Rewrite Subquery",
"Extract Python UDFs")

protected def fixedPoint =
Expand Down Expand Up @@ -210,10 +211,14 @@ abstract class Optimizer(catalogManager: CatalogManager)
// The following batch should be executed after batch "Join Reorder" and "LocalRelation".
Batch("Check Cartesian Products", Once,
CheckCartesianProducts) :+
Batch("RewriteSubquery", Once,
Batch("Rewrite Subquery", Once,
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@gatorsmile gatorsmile Oct 30, 2018 •
edited
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I do not have a good answer for this PR. Ideally, we should run the whole batch operatorOptimizationBatch. However, running the whole batch could be very time consuming. I would suggest to add a new parameter for introducing the time bound limit for each batch.

cc @maryannxue WDYT?

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@gatorsmile Do you think its a good time to revisit Natt's PR to convert subquery expressions to Joins early in the optimization process ? Perhaps then we can take advantage of all the subsequent rules firing after the subquery rewrite ?

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@maryannxue maryannxue Oct 30, 2018 •
edited
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@gatorsmile I think @dilipbiswal's suggestion is the right way to go. If you think of this subquery rewriting as another kind of de-correlation, it should be a pre-optimization rule.

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Sure. That sounds also good to me. @dilipbiswal Could you take the PR #17520 over?

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@gatorsmile Sure Sean.. Let me give it a try.

RewritePredicateSubquery,
ColumnPruning,
InferFiltersFromConstraints,
PushDownPredicates,
CollapseProject,
CombineFilters,
PruneFilters,
RemoveNoopOperators) :+
// This batch must be executed after the `RewriteSubquery` batch, which creates joins.
Batch("NormalizeFloatingNumbers", Once, NormalizeFloatingNumbers) :+
Expand Down
48 changes: 39 additions & 9 deletions ...atalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/RewriteSubquerySuite.scala
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Expand Up @@ -19,10 +19,11 @@ package org.apache.spark.sql.catalyst.optimizer

import org.apache.spark.sql.catalyst.dsl.expressions._
import org.apache.spark.sql.catalyst.dsl.plans._
import org.apache.spark.sql.catalyst.expressions.{IsNull, ListQuery, Not}
import org.apache.spark.sql.catalyst.expressions.{IsNotNull, IsNull, ListQuery, Not}
import org.apache.spark.sql.catalyst.plans.{ExistenceJoin, LeftSemi, PlanTest}
import org.apache.spark.sql.catalyst.plans.logical.{LocalRelation, LogicalPlan}
import org.apache.spark.sql.catalyst.rules.RuleExecutor
import org.apache.spark.sql.internal.SQLConf


class RewriteSubquerySuite extends PlanTest {
Expand All @@ -33,23 +34,52 @@ class RewriteSubquerySuite extends PlanTest {
Batch("Rewrite Subquery", FixedPoint(1),
RewritePredicateSubquery,
ColumnPruning,
InferFiltersFromConstraints,
PushDownPredicates,
CollapseProject,
CombineFilters,
RemoveNoopOperators) :: Nil
}

val relation = LocalRelation('a.int, 'b.int)
val relInSubquery = LocalRelation('x.int, 'y.int, 'z.int)

test("Column pruning after rewriting predicate subquery") {
val relation = LocalRelation('a.int, 'b.int)
val relInSubquery = LocalRelation('x.int, 'y.int, 'z.int)
withSQLConf(SQLConf.CONSTRAINT_PROPAGATION_ENABLED.key -> "false") {
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We need to modify this existing test?

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Yes, spark.sql.constraintPropagation.enabled=false to test ColumnPruning.
spark.sql.constraintPropagation.enabled=true to test ColumnPruning, InferFiltersFromConstraints and PushDownPredicate.

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Ah, I see. Thanks.

val query = relation.where('a.in(ListQuery(relInSubquery.select('x)))).select('a)
val optimized = Optimize.execute(query.analyze)

val correctAnswer = relation
.select('a)
.join(relInSubquery.select('x), LeftSemi, Some('a === 'x))
.analyze

comparePlans(optimized, correctAnswer)
}
}

test("Infer filters and push down predicate after rewriting predicate subquery") {
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Need the column pruning in the test title?

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How about making the test title simple, then leaving comments about what's tested clearly here?

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How about refactor these test to:

  val relation = LocalRelation('a.int, 'b.int)
  val relInSubquery = LocalRelation('x.int, 'y.int, 'z.int)

  test("Column pruning") {
    withSQLConf(SQLConf.CONSTRAINT_PROPAGATION_ENABLED.key -> "false") {
      val query = relation.where('a.in(ListQuery(relInSubquery.select('x)))).select('a)

      val optimized = Optimize.execute(query.analyze)
      val correctAnswer = relation
        .select('a)
        .join(relInSubquery.select('x), LeftSemi, Some('a === 'x))
        .analyze

      comparePlans(optimized, correctAnswer)
    }
  }

  test("Column pruning, infer filters and push down predicate") {
    withSQLConf(SQLConf.CONSTRAINT_PROPAGATION_ENABLED.key -> "true") {
      val query = relation.where('a.in(ListQuery(relInSubquery.select('x)))).select('a)

      val optimized = Optimize.execute(query.analyze)
      val correctAnswer = relation
        .where(IsNotNull('a)).select('a)
        .join(relInSubquery.where(IsNotNull('x)).select('x), LeftSemi, Some('a === 'x))
        .analyze

      comparePlans(optimized, correctAnswer)
    }
  }

withSQLConf(SQLConf.CONSTRAINT_PROPAGATION_ENABLED.key -> "true") {
val query = relation.where('a.in(ListQuery(relInSubquery.select('x)))).select('a)
val optimized = Optimize.execute(query.analyze)

val correctAnswer = relation
.where(IsNotNull('a)).select('a)
.join(relInSubquery.where(IsNotNull('x)).select('x), LeftSemi, Some('a === 'x))
.analyze

val query = relation.where('a.in(ListQuery(relInSubquery.select('x)))).select('a)
comparePlans(optimized, correctAnswer)
}
}

test("combine filters after rewriting predicate subquery") {
val query = relation.where('a.in(ListQuery(relInSubquery.select('x).where('y > 1)))).select('a)
val optimized = Optimize.execute(query.analyze)
val correctAnswer = relation
.select('a)
.join(relInSubquery.select('x), LeftSemi, Some('a === 'x))
.analyze

comparePlans(optimized, correctAnswer)
val correctAnswer = relation
.where(IsNotNull('a)).select('a)
.join(relInSubquery.where(IsNotNull('x) && IsNotNull('y) && 'y > 1).select('x),
LeftSemi, Some('a === 'x))
}

test("NOT-IN subquery nested inside OR") {
Expand Down
12 changes: 6 additions & 6 deletions sql/core/src/test/resources/tpcds-plan-stability/approved-plans-v1_4/q10.sf100/explain.txt
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Expand Up @@ -63,15 +63,15 @@ TakeOrderedAndProject (58)
Output [3]: [c_customer_sk#3, c_current_cdemo_sk#4, c_current_addr_sk#5]
Batched: true
Location [not included in comparison]/{warehouse_dir}/customer]
PushedFilters: [IsNotNull(c_current_addr_sk), IsNotNull(c_current_cdemo_sk)]
PushedFilters: [IsNotNull(c_current_addr_sk), IsNotNull(c_current_cdemo_sk), IsNotNull(c_customer_sk)]
ReadSchema: struct<c_customer_sk:int,c_current_cdemo_sk:int,c_current_addr_sk:int>

(2) ColumnarToRow [codegen id : 1]
Input [3]: [c_customer_sk#3, c_current_cdemo_sk#4, c_current_addr_sk#5]

(3) Filter [codegen id : 1]
Input [3]: [c_customer_sk#3, c_current_cdemo_sk#4, c_current_addr_sk#5]
Condition : (isnotnull(c_current_addr_sk#5) AND isnotnull(c_current_cdemo_sk#4))
Condition : ((isnotnull(c_current_addr_sk#5) AND isnotnull(c_current_cdemo_sk#4)) AND isnotnull(c_customer_sk#3))

(4) Exchange
Input [3]: [c_customer_sk#3, c_current_cdemo_sk#4, c_current_addr_sk#5]
Expand All @@ -85,29 +85,29 @@ Arguments: [c_customer_sk#3 ASC NULLS FIRST], false, 0
Output [2]: [ss_sold_date_sk#7, ss_customer_sk#8]
Batched: true
Location [not included in comparison]/{warehouse_dir}/store_sales]
PushedFilters: [IsNotNull(ss_sold_date_sk)]
PushedFilters: [IsNotNull(ss_sold_date_sk), IsNotNull(ss_customer_sk)]
ReadSchema: struct<ss_sold_date_sk:int,ss_customer_sk:int>

(7) ColumnarToRow [codegen id : 4]
Input [2]: [ss_sold_date_sk#7, ss_customer_sk#8]

(8) Filter [codegen id : 4]
Input [2]: [ss_sold_date_sk#7, ss_customer_sk#8]
Condition : isnotnull(ss_sold_date_sk#7)
Condition : (isnotnull(ss_sold_date_sk#7) AND isnotnull(ss_customer_sk#8))

(9) Scan parquet default.date_dim
Output [3]: [d_date_sk#9, d_year#10, d_moy#11]
Batched: true
Location [not included in comparison]/{warehouse_dir}/date_dim]
PushedFilters: [IsNotNull(d_year), IsNotNull(d_moy), EqualTo(d_year,2002), GreaterThanOrEqual(d_moy,1), LessThanOrEqual(d_moy,4), IsNotNull(d_date_sk)]
PushedFilters: [IsNotNull(d_moy), IsNotNull(d_year), EqualTo(d_year,2002), GreaterThanOrEqual(d_moy,1), LessThanOrEqual(d_moy,4), IsNotNull(d_date_sk)]
ReadSchema: struct<d_date_sk:int,d_year:int,d_moy:int>

(10) ColumnarToRow [codegen id : 3]
Input [3]: [d_date_sk#9, d_year#10, d_moy#11]

(11) Filter [codegen id : 3]
Input [3]: [d_date_sk#9, d_year#10, d_moy#11]
Condition : (((((isnotnull(d_year#10) AND isnotnull(d_moy#11)) AND (d_year#10 = 2002)) AND (d_moy#11 >= 1)) AND (d_moy#11 <= 4)) AND isnotnull(d_date_sk#9))
Condition : (((((isnotnull(d_moy#11) AND isnotnull(d_year#10)) AND (d_year#10 = 2002)) AND (d_moy#11 >= 1)) AND (d_moy#11 <= 4)) AND isnotnull(d_date_sk#9))

(12) Project [codegen id : 3]
Output [1]: [d_date_sk#9]
Expand Down
4 changes: 2 additions & 2 deletions ...core/src/test/resources/tpcds-plan-stability/approved-plans-v1_4/q10.sf100/simplified.txt
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Expand Up @@ -26,7 +26,7 @@ TakeOrderedAndProject [cd_credit_rating,cd_dep_college_count,cd_dep_count,cd_dep
InputAdapter
Exchange [c_customer_sk] #3
WholeStageCodegen (1)
Filter [c_current_addr_sk,c_current_cdemo_sk]
Filter [c_current_addr_sk,c_current_cdemo_sk,c_customer_sk]
ColumnarToRow
InputAdapter
Scan parquet default.customer [c_current_addr_sk,c_current_cdemo_sk,c_customer_sk]
Expand All @@ -37,7 +37,7 @@ TakeOrderedAndProject [cd_credit_rating,cd_dep_college_count,cd_dep_count,cd_dep
WholeStageCodegen (4)
Project [ss_customer_sk]
BroadcastHashJoin [d_date_sk,ss_sold_date_sk]
Filter [ss_sold_date_sk]
Filter [ss_customer_sk,ss_sold_date_sk]
ColumnarToRow
InputAdapter
Scan parquet default.store_sales [ss_customer_sk,ss_sold_date_sk]
Expand Down
8 changes: 4 additions & 4 deletions sql/core/src/test/resources/tpcds-plan-stability/approved-plans-v1_4/q10/explain.txt
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Expand Up @@ -55,29 +55,29 @@ TakeOrderedAndProject (50)
Output [3]: [c_customer_sk#3, c_current_cdemo_sk#4, c_current_addr_sk#5]
Batched: true
Location [not included in comparison]/{warehouse_dir}/customer]
PushedFilters: [IsNotNull(c_current_addr_sk), IsNotNull(c_current_cdemo_sk)]
PushedFilters: [IsNotNull(c_current_addr_sk), IsNotNull(c_current_cdemo_sk), IsNotNull(c_customer_sk)]
ReadSchema: struct<c_customer_sk:int,c_current_cdemo_sk:int,c_current_addr_sk:int>

(2) ColumnarToRow [codegen id : 9]
Input [3]: [c_customer_sk#3, c_current_cdemo_sk#4, c_current_addr_sk#5]

(3) Filter [codegen id : 9]
Input [3]: [c_customer_sk#3, c_current_cdemo_sk#4, c_current_addr_sk#5]
Condition : (isnotnull(c_current_addr_sk#5) AND isnotnull(c_current_cdemo_sk#4))
Condition : ((isnotnull(c_current_addr_sk#5) AND isnotnull(c_current_cdemo_sk#4)) AND isnotnull(c_customer_sk#3))

(4) Scan parquet default.store_sales
Output [2]: [ss_sold_date_sk#6, ss_customer_sk#7]
Batched: true
Location [not included in comparison]/{warehouse_dir}/store_sales]
PushedFilters: [IsNotNull(ss_sold_date_sk)]
PushedFilters: [IsNotNull(ss_sold_date_sk), IsNotNull(ss_customer_sk)]
ReadSchema: struct<ss_sold_date_sk:int,ss_customer_sk:int>

(5) ColumnarToRow [codegen id : 2]
Input [2]: [ss_sold_date_sk#6, ss_customer_sk#7]

(6) Filter [codegen id : 2]
Input [2]: [ss_sold_date_sk#6, ss_customer_sk#7]
Condition : isnotnull(ss_sold_date_sk#6)
Condition : (isnotnull(ss_sold_date_sk#6) AND isnotnull(ss_customer_sk#7))

(7) Scan parquet default.date_dim
Output [3]: [d_date_sk#8, d_year#9, d_moy#10]
Expand Down
4 changes: 2 additions & 2 deletions sql/core/src/test/resources/tpcds-plan-stability/approved-plans-v1_4/q10/simplified.txt
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Expand Up @@ -14,7 +14,7 @@ TakeOrderedAndProject [cd_credit_rating,cd_dep_college_count,cd_dep_count,cd_dep
BroadcastHashJoin [c_customer_sk,cs_ship_customer_sk]
BroadcastHashJoin [c_customer_sk,ws_bill_customer_sk]
BroadcastHashJoin [c_customer_sk,ss_customer_sk]
Filter [c_current_addr_sk,c_current_cdemo_sk]
Filter [c_current_addr_sk,c_current_cdemo_sk,c_customer_sk]
ColumnarToRow
InputAdapter
Scan parquet default.customer [c_current_addr_sk,c_current_cdemo_sk,c_customer_sk]
Expand All @@ -23,7 +23,7 @@ TakeOrderedAndProject [cd_credit_rating,cd_dep_college_count,cd_dep_count,cd_dep
WholeStageCodegen (2)
Project [ss_customer_sk]
BroadcastHashJoin [d_date_sk,ss_sold_date_sk]
Filter [ss_sold_date_sk]
Filter [ss_customer_sk,ss_sold_date_sk]
ColumnarToRow
InputAdapter
Scan parquet default.store_sales [ss_customer_sk,ss_sold_date_sk]
Expand Down
8 changes: 4 additions & 4 deletions sql/core/src/test/resources/tpcds-plan-stability/approved-plans-v1_4/q14a.sf100/explain.txt
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Expand Up @@ -158,15 +158,15 @@ Arguments: [ss_item_sk#2 ASC NULLS FIRST], false, 0
Output [4]: [i_item_sk#6, i_brand_id#7, i_class_id#8, i_category_id#9]
Batched: true
Location [not included in comparison]/{warehouse_dir}/item]
PushedFilters: [IsNotNull(i_class_id), IsNotNull(i_brand_id), IsNotNull(i_category_id)]
PushedFilters: [IsNotNull(i_brand_id), IsNotNull(i_class_id), IsNotNull(i_category_id), IsNotNull(i_item_sk)]
ReadSchema: struct<i_item_sk:int,i_brand_id:int,i_class_id:int,i_category_id:int>

(7) ColumnarToRow [codegen id : 17]
Input [4]: [i_item_sk#6, i_brand_id#7, i_class_id#8, i_category_id#9]

(8) Filter [codegen id : 17]
Input [4]: [i_item_sk#6, i_brand_id#7, i_class_id#8, i_category_id#9]
Condition : ((isnotnull(i_class_id#8) AND isnotnull(i_brand_id#7)) AND isnotnull(i_category_id#9))
Condition : (((isnotnull(i_brand_id#7) AND isnotnull(i_class_id#8)) AND isnotnull(i_category_id#9)) AND isnotnull(i_item_sk#6))

(9) Scan parquet default.store_sales
Output [2]: [ss_sold_date_sk#1, ss_item_sk#2]
Expand Down Expand Up @@ -217,15 +217,15 @@ Input [3]: [ss_sold_date_sk#1, ss_item_sk#2, d_date_sk#10]
Output [4]: [i_item_sk#6, i_brand_id#7, i_class_id#8, i_category_id#9]
Batched: true
Location [not included in comparison]/{warehouse_dir}/item]
PushedFilters: [IsNotNull(i_item_sk), IsNotNull(i_category_id), IsNotNull(i_brand_id), IsNotNull(i_class_id)]
PushedFilters: [IsNotNull(i_item_sk), IsNotNull(i_brand_id), IsNotNull(i_class_id), IsNotNull(i_category_id)]
ReadSchema: struct<i_item_sk:int,i_brand_id:int,i_class_id:int,i_category_id:int>

(20) ColumnarToRow [codegen id : 4]
Input [4]: [i_item_sk#6, i_brand_id#7, i_class_id#8, i_category_id#9]

(21) Filter [codegen id : 4]
Input [4]: [i_item_sk#6, i_brand_id#7, i_class_id#8, i_category_id#9]
Condition : (((isnotnull(i_item_sk#6) AND isnotnull(i_category_id#9)) AND isnotnull(i_brand_id#7)) AND isnotnull(i_class_id#8))
Condition : (((isnotnull(i_item_sk#6) AND isnotnull(i_brand_id#7)) AND isnotnull(i_class_id#8)) AND isnotnull(i_category_id#9))

(22) BroadcastExchange
Input [4]: [i_item_sk#6, i_brand_id#7, i_class_id#8, i_category_id#9]
Expand Down
2 changes: 1 addition & 1 deletion ...ore/src/test/resources/tpcds-plan-stability/approved-plans-v1_4/q14a.sf100/simplified.txt
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Expand Up @@ -80,7 +80,7 @@ TakeOrderedAndProject [channel,i_brand_id,i_category_id,i_class_id,sum(number_sa
WholeStageCodegen (17)
Project [i_item_sk]
BroadcastHashJoin [brand_id,category_id,class_id,i_brand_id,i_category_id,i_class_id]
Filter [i_brand_id,i_category_id,i_class_id]
Filter [i_brand_id,i_category_id,i_class_id,i_item_sk]
ColumnarToRow
InputAdapter
Scan parquet default.item [i_brand_id,i_category_id,i_class_id,i_item_sk]
Expand Down
4 changes: 2 additions & 2 deletions sql/core/src/test/resources/tpcds-plan-stability/approved-plans-v1_4/q14a/explain.txt
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Expand Up @@ -134,15 +134,15 @@ Condition : (isnotnull(ss_item_sk#2) AND isnotnull(ss_sold_date_sk#1))
Output [4]: [i_item_sk#5, i_brand_id#6, i_class_id#7, i_category_id#8]
Batched: true
Location [not included in comparison]/{warehouse_dir}/item]
PushedFilters: [IsNotNull(i_class_id), IsNotNull(i_brand_id), IsNotNull(i_category_id)]
PushedFilters: [IsNotNull(i_class_id), IsNotNull(i_brand_id), IsNotNull(i_category_id), IsNotNull(i_item_sk)]
ReadSchema: struct<i_item_sk:int,i_brand_id:int,i_class_id:int,i_category_id:int>

(5) ColumnarToRow [codegen id : 11]
Input [4]: [i_item_sk#5, i_brand_id#6, i_class_id#7, i_category_id#8]

(6) Filter [codegen id : 11]
Input [4]: [i_item_sk#5, i_brand_id#6, i_class_id#7, i_category_id#8]
Condition : ((isnotnull(i_class_id#7) AND isnotnull(i_brand_id#6)) AND isnotnull(i_category_id#8))
Condition : (((isnotnull(i_class_id#7) AND isnotnull(i_brand_id#6)) AND isnotnull(i_category_id#8)) AND isnotnull(i_item_sk#5))

(7) Scan parquet default.store_sales
Output [2]: [ss_sold_date_sk#1, ss_item_sk#2]
Expand Down
2 changes: 1 addition & 1 deletion sql/core/src/test/resources/tpcds-plan-stability/approved-plans-v1_4/q14a/simplified.txt
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Expand Up @@ -72,7 +72,7 @@ TakeOrderedAndProject [channel,i_brand_id,i_category_id,i_class_id,sum(number_sa
WholeStageCodegen (11)
Project [i_item_sk]
BroadcastHashJoin [brand_id,category_id,class_id,i_brand_id,i_category_id,i_class_id]
Filter [i_brand_id,i_category_id,i_class_id]
Filter [i_brand_id,i_category_id,i_class_id,i_item_sk]
ColumnarToRow
InputAdapter
Scan parquet default.item [i_brand_id,i_category_id,i_class_id,i_item_sk]
Expand Down
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