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Add additional runs of columnPruningRules and WindowFilterPushDown #25176

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Add additional runs of columnPruningRules and WindowFilterPushDown #25176

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24 changes: 12 additions & 12 deletions presto-benchto-benchmarks/src/test/resources/sql/presto/tpcds/q58.plan.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -2,14 +2,14 @@ local exchange (GATHER, SINGLE, [])
remote exchange (GATHER, SINGLE, [])
join (INNER, PARTITIONED):
join (INNER, PARTITIONED):
final aggregation over (i_item_id)
final aggregation over (i_item_id_79)
local exchange (GATHER, SINGLE, [])
remote exchange (REPARTITION, HASH, [i_item_id])
partial aggregation over (i_item_id)
remote exchange (REPARTITION, HASH, [i_item_id_79])
partial aggregation over (i_item_id_79)
semijoin (REPLICATED):
join (INNER, REPLICATED):
join (INNER, REPLICATED):
scan store_sales
scan catalog_sales
local exchange (GATHER, SINGLE, [])
remote exchange (REPLICATE, BROADCAST, [])
scan date_dim
Expand All @@ -25,14 +25,14 @@ local exchange (GATHER, SINGLE, [])
local exchange (GATHER, SINGLE, [])
remote exchange (GATHER, SINGLE, [])
scan date_dim
final aggregation over (i_item_id_79)
final aggregation over (i_item_id_210)
local exchange (GATHER, SINGLE, [])
remote exchange (REPARTITION, HASH, [i_item_id_79])
partial aggregation over (i_item_id_79)
remote exchange (REPARTITION, HASH, [i_item_id_210])
partial aggregation over (i_item_id_210)
semijoin (REPLICATED):
join (INNER, REPLICATED):
join (INNER, REPLICATED):
scan catalog_sales
scan web_sales
local exchange (GATHER, SINGLE, [])
remote exchange (REPLICATE, BROADCAST, [])
scan date_dim
Expand All @@ -48,14 +48,14 @@ local exchange (GATHER, SINGLE, [])
local exchange (GATHER, SINGLE, [])
remote exchange (GATHER, SINGLE, [])
scan date_dim
final aggregation over (i_item_id_210)
final aggregation over (i_item_id)
local exchange (GATHER, SINGLE, [])
remote exchange (REPARTITION, HASH, [i_item_id_210])
partial aggregation over (i_item_id_210)
remote exchange (REPARTITION, HASH, [i_item_id])
partial aggregation over (i_item_id)
semijoin (REPLICATED):
join (INNER, REPLICATED):
join (INNER, REPLICATED):
scan web_sales
scan store_sales
local exchange (GATHER, SINGLE, [])
remote exchange (REPLICATE, BROADCAST, [])
scan date_dim
Expand Down
9 changes: 9 additions & 0 deletions presto-main-base/src/main/java/com/facebook/presto/sql/planner/PlanOptimizers.java
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Expand Up @@ -733,6 +733,14 @@ public PlanOptimizers(
builder.add(new SimplifyPlanWithEmptyInput(),
new PruneUnreferencedOutputs());

// Run columnPruningRules one more time to optimize the ProjectNode generated in SimplifyPlanWithEmptyInput.
builder.add(new IterativeOptimizer(
metadata,
ruleStats,
statsCalculator,
estimatedExchangesCostCalculator,
columnPruningRules));

builder.add(new IterativeOptimizer(
metadata,
ruleStats,
Expand Down Expand Up @@ -886,6 +894,7 @@ public PlanOptimizers(
// Run RemoveEmptyDelete and EliminateEmptyJoins after table scan is removed by PickTableLayout/AddExchanges
ImmutableSet.of(new RemoveEmptyDelete())));
builder.add(predicatePushDown); // Run predicate push down one more time in case we can leverage new information from layouts' effective predicate
builder.add(new WindowFilterPushDown(metadata));
builder.add(new RemoveUnsupportedDynamicFilters(metadata.getFunctionAndTypeManager()));
builder.add(simplifyRowExpressionOptimizer); // Should be always run after PredicatePushDown
builder.add(projectionPushDown);
Expand Down
2 changes: 0 additions & 2 deletions ...ase/src/main/java/com/facebook/presto/sql/planner/optimizations/WindowFilterPushDown.java
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Original file line number Diff line number Diff line change
Expand Up @@ -51,7 +51,6 @@
import static com.facebook.presto.common.type.BigintType.BIGINT;
import static com.facebook.presto.expressions.LogicalRowExpressions.TRUE_CONSTANT;
import static com.facebook.presto.sql.planner.plan.ChildReplacer.replaceChildren;
import static com.google.common.base.Preconditions.checkState;
import static com.google.common.base.Verify.verify;
import static com.google.common.collect.Iterables.getOnlyElement;
import static java.lang.Math.toIntExact;
Expand Down Expand Up @@ -116,7 +115,6 @@ public boolean isPlanChanged()
@Override
public PlanNode visitWindow(WindowNode node, RewriteContext<Void> context)
{
checkState(node.getWindowFunctions().size() == 1, "WindowFilterPushdown requires that WindowNodes contain exactly one window function");
PlanNode rewrittenSource = context.rewrite(node.getSource());

if (canReplaceWithRowNumber(node, metadata.getFunctionAndTypeManager())) {
Expand Down
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