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Posted to commits@quickstep.apache.org by ji...@apache.org on 2016/06/07 17:25:39 UTC

[09/12] incubator-quickstep git commit: Added query ID to all the remaining operators and work orders.

Added query ID to all the remaining operators and work orders.


Project: http://git-wip-us.apache.org/repos/asf/incubator-quickstep/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-quickstep/commit/1290dd70
Tree: http://git-wip-us.apache.org/repos/asf/incubator-quickstep/tree/1290dd70
Diff: http://git-wip-us.apache.org/repos/asf/incubator-quickstep/diff/1290dd70

Branch: refs/heads/master
Commit: 1290dd70302d1896bbc6e9100175fceb4d7137f5
Parents: 58d5ccb
Author: Harshad Deshmukh <hb...@apache.org>
Authored: Mon Jun 6 14:32:08 2016 -0500
Committer: Harshad Deshmukh <hb...@apache.org>
Committed: Mon Jun 6 14:32:08 2016 -0500

----------------------------------------------------------------------
 query_execution/Foreman.cpp                     |  3 ++
 query_execution/QueryManager.cpp                |  1 +
 query_optimizer/ExecutionGenerator.cpp          | 50 +++++++++++++-------
 relational_operators/DropTableOperator.cpp      |  3 +-
 relational_operators/DropTableOperator.hpp      | 13 +++--
 .../FinalizeAggregationOperator.cpp             |  6 ++-
 .../FinalizeAggregationOperator.hpp             | 15 ++++--
 relational_operators/InsertOperator.cpp         |  6 ++-
 relational_operators/InsertOperator.hpp         | 15 ++++--
 .../NestedLoopsJoinOperator.cpp                 |  4 ++
 .../NestedLoopsJoinOperator.hpp                 | 12 +++--
 relational_operators/RebuildWorkOrder.hpp       |  2 +
 relational_operators/SampleOperator.cpp         |  7 ++-
 relational_operators/SampleOperator.hpp         | 13 +++--
 relational_operators/SaveBlocksOperator.cpp     |  1 +
 relational_operators/SaveBlocksOperator.hpp     |  9 +++-
 relational_operators/SelectOperator.cpp         |  4 ++
 relational_operators/SelectOperator.hpp         | 24 +++++++---
 relational_operators/SortMergeRunOperator.cpp   |  1 +
 relational_operators/SortMergeRunOperator.hpp   | 12 +++--
 .../SortRunGenerationOperator.cpp               |  2 +
 .../SortRunGenerationOperator.hpp               | 12 +++--
 relational_operators/TableGeneratorOperator.cpp |  7 ++-
 relational_operators/TableGeneratorOperator.hpp | 13 +++--
 relational_operators/TextScanOperator.cpp       | 11 ++++-
 relational_operators/TextScanOperator.hpp       | 16 +++++--
 relational_operators/UpdateOperator.cpp         |  1 +
 relational_operators/UpdateOperator.hpp         | 12 +++--
 relational_operators/WorkOrderFactory.cpp       | 21 ++++++--
 .../tests/AggregationOperator_unittest.cpp      | 12 +++--
 .../tests/SortMergeRunOperator_unittest.cpp     |  6 ++-
 .../SortRunGenerationOperator_unittest.cpp      |  3 +-
 .../tests/TextScanOperator_unittest.cpp         |  3 +-
 33 files changed, 240 insertions(+), 80 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/1290dd70/query_execution/Foreman.cpp
----------------------------------------------------------------------
diff --git a/query_execution/Foreman.cpp b/query_execution/Foreman.cpp
index 304c429..b358f70 100644
--- a/query_execution/Foreman.cpp
+++ b/query_execution/Foreman.cpp
@@ -518,11 +518,14 @@ void Foreman::getRebuildWorkOrders(const dag_node_index index, WorkOrdersContain
   for (vector<MutableBlockReference>::size_type i = 0;
        i < partially_filled_block_refs.size();
        ++i) {
+    // Note: The query ID used below is dummy for now, it will be replaced with
+    // the true query ID when QueryManager gets used in Foreman.
     container->addRebuildWorkOrder(
         new RebuildWorkOrder(move(partially_filled_block_refs[i]),
                             index,
                             op.getOutputRelationID(),
                             foreman_client_id_,
+                            0,
                             bus_),
         index);
   }

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/1290dd70/query_execution/QueryManager.cpp
----------------------------------------------------------------------
diff --git a/query_execution/QueryManager.cpp b/query_execution/QueryManager.cpp
index 02c5d4c..21f5820 100644
--- a/query_execution/QueryManager.cpp
+++ b/query_execution/QueryManager.cpp
@@ -461,6 +461,7 @@ void QueryManager::getRebuildWorkOrders(const dag_node_index index,
                             index,
                             op.getOutputRelationID(),
                             foreman_client_id_,
+                            query_id_,
                             bus_),
         index);
   }

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/1290dd70/query_optimizer/ExecutionGenerator.cpp
----------------------------------------------------------------------
diff --git a/query_optimizer/ExecutionGenerator.cpp b/query_optimizer/ExecutionGenerator.cpp
index 60389cb..30dfa8e 100644
--- a/query_optimizer/ExecutionGenerator.cpp
+++ b/query_optimizer/ExecutionGenerator.cpp
@@ -194,6 +194,7 @@ void ExecutionGenerator::generatePlan(const P::PhysicalPtr &physical_plan) {
     const QueryPlan::DAGNodeIndex drop_table_index =
         execution_plan_->addRelationalOperator(
             new DropTableOperator(*temporary_relation,
+                                  query_handle_->query_id(),
                                   optimizer_context_->catalog_database(),
                                   false /* only_drop_blocks */));
     DCHECK(!temporary_relation_info.isStoredRelation());
@@ -415,7 +416,8 @@ void ExecutionGenerator::convertSample(const P::SamplePtr &physical_sample) {
                                                  insert_destination_index,
                                                  input_relation_info->isStoredRelation(),
                                                  physical_sample->is_block_sample(),
-                                                 physical_sample->percentage());
+                                                 physical_sample->percentage(),
+                                                 query_handle_->query_id());
   const QueryPlan::DAGNodeIndex sample_index =
       execution_plan_->addRelationalOperator(sample_op);
   insert_destination_proto->set_relational_op_index(sample_index);
@@ -531,13 +533,15 @@ void ExecutionGenerator::convertSelection(
                              insert_destination_index,
                              execution_predicate_index,
                              move(attributes),
-                             input_relation_info->isStoredRelation())
+                             input_relation_info->isStoredRelation(),
+                             query_handle_->query_id())
         : new SelectOperator(*input_relation_info->relation,
                              *output_relation,
                              insert_destination_index,
                              execution_predicate_index,
                              project_expressions_group_index,
-                             input_relation_info->isStoredRelation());
+                             input_relation_info->isStoredRelation(),
+                             query_handle_->query_id());
 
   const QueryPlan::DAGNodeIndex select_index =
       execution_plan_->addRelationalOperator(op);
@@ -889,7 +893,8 @@ void ExecutionGenerator::convertNestedLoopsJoin(
           execution_join_predicate_index,
           project_expressions_group_index,
           left_relation_info->isStoredRelation(),
-          right_relation_info->isStoredRelation()));
+          right_relation_info->isStoredRelation(),
+          query_handle_->query_id()));
   insert_destination_proto->set_relational_op_index(join_operator_index);
 
   if (!left_relation_info->isStoredRelation()) {
@@ -940,12 +945,13 @@ void ExecutionGenerator::convertCopyFrom(
               physical_plan->escape_strings(),
               FLAGS_parallelize_load,
               *output_relation,
-              insert_destination_index));
+              insert_destination_index,
+              query_handle_->query_id()));
   insert_destination_proto->set_relational_op_index(scan_operator_index);
 
   const QueryPlan::DAGNodeIndex save_blocks_operator_index =
       execution_plan_->addRelationalOperator(
-          new SaveBlocksOperator());
+          new SaveBlocksOperator(query_handle_->query_id()));
   execution_plan_->addDirectDependency(save_blocks_operator_index,
                                        scan_operator_index,
                                        false /* is_pipeline_breaker */);
@@ -1062,6 +1068,7 @@ void ExecutionGenerator::convertDeleteTuples(
     const QueryPlan::DAGNodeIndex drop_table_index =
         execution_plan_->addRelationalOperator(
             new DropTableOperator(*input_relation_info->relation,
+                                  query_handle_->query_id(),
                                   optimizer_context_->catalog_database(),
                                   true /* only_drop_blocks */));
     if (!input_relation_info->isStoredRelation()) {
@@ -1087,7 +1094,7 @@ void ExecutionGenerator::convertDeleteTuples(
 
     const QueryPlan::DAGNodeIndex save_blocks_index =
         execution_plan_->addRelationalOperator(
-            new SaveBlocksOperator());
+            new SaveBlocksOperator(query_handle_->query_id()));
     execution_plan_->addDirectDependency(save_blocks_index,
                                          delete_tuples_index,
                                          false /* is_pipeline_breaker */);
@@ -1105,6 +1112,7 @@ void ExecutionGenerator::convertDropTable(
 
   execution_plan_->addRelationalOperator(
       new DropTableOperator(catalog_relation,
+                            query_handle_->query_id(),
                             optimizer_context_->catalog_database()));
 }
 
@@ -1158,12 +1166,13 @@ void ExecutionGenerator::convertInsertTuple(
       execution_plan_->addRelationalOperator(
           new InsertOperator(input_relation,
                              insert_destination_index,
-                             tuple_index));
+                             tuple_index,
+                             query_handle_->query_id()));
   insert_destination_proto->set_relational_op_index(insert_operator_index);
 
   const QueryPlan::DAGNodeIndex save_blocks_index =
       execution_plan_->addRelationalOperator(
-          new SaveBlocksOperator());
+          new SaveBlocksOperator(query_handle_->query_id()));
   if (!input_relation_info->isStoredRelation()) {
     execution_plan_->addDirectDependency(insert_operator_index,
                                          input_relation_info->producer_operator_index,
@@ -1236,14 +1245,15 @@ void ExecutionGenerator::convertInsertSelection(
                          insert_destination_index,
                          QueryContext::kInvalidPredicateId,
                          move(attributes),
-                         selection_relation_info->isStoredRelation());
+                         selection_relation_info->isStoredRelation(),
+                         query_handle_->query_id());
 
   const QueryPlan::DAGNodeIndex insert_selection_index =
       execution_plan_->addRelationalOperator(insert_selection_op);
   insert_destination_proto->set_relational_op_index(insert_selection_index);
 
   const QueryPlan::DAGNodeIndex save_blocks_index =
-      execution_plan_->addRelationalOperator(new SaveBlocksOperator());
+      execution_plan_->addRelationalOperator(new SaveBlocksOperator(query_handle_->query_id()));
 
   if (!selection_relation_info->isStoredRelation()) {
     execution_plan_->addDirectDependency(insert_selection_index,
@@ -1316,12 +1326,13 @@ void ExecutionGenerator::convertUpdateTable(
               *optimizer_context_->catalog_database()->getRelationById(input_rel_id),
               relocation_destination_index,
               execution_predicate_index,
-              update_group_index));
+              update_group_index,
+              query_handle_->query_id()));
   relocation_destination_proto->set_relational_op_index(update_operator_index);
 
   const QueryPlan::DAGNodeIndex save_blocks_index =
       execution_plan_->addRelationalOperator(
-          new SaveBlocksOperator());
+          new SaveBlocksOperator(query_handle_->query_id()));
   if (!input_relation_info->isStoredRelation()) {
     execution_plan_->addDirectDependency(update_operator_index,
                                          input_relation_info->producer_operator_index,
@@ -1441,7 +1452,8 @@ void ExecutionGenerator::convertAggregate(
       execution_plan_->addRelationalOperator(
           new FinalizeAggregationOperator(aggr_state_index,
                                           *output_relation,
-                                          insert_destination_index));
+                                          insert_destination_index,
+                                          query_handle_->query_id()));
   insert_destination_proto->set_relational_op_index(finalize_aggregation_operator_index);
 
   execution_plan_->addDirectDependency(finalize_aggregation_operator_index,
@@ -1492,7 +1504,8 @@ void ExecutionGenerator::convertSort(const P::SortPtr &physical_sort) {
                                         *initial_runs_relation,
                                         initial_runs_destination_id,
                                         sort_run_gen_config_id,
-                                        input_relation_info->isStoredRelation()));
+                                        input_relation_info->isStoredRelation(),
+                                        query_handle_->query_id()));
   if (!input_relation_info->isStoredRelation()) {
     execution_plan_->addDirectDependency(run_generator_index,
                                          input_relation_info->producer_operator_index,
@@ -1549,7 +1562,8 @@ void ExecutionGenerator::convertSort(const P::SortPtr &physical_sort) {
                                    sort_merge_run_config_id,
                                    64 /* merge_factor */,
                                    physical_sort->limit(),
-                                   false /* input_relation_is_stored */));
+                                   false /* input_relation_is_stored */,
+                                   query_handle_->query_id()));
   execution_plan_->addDirectDependency(merge_run_operator_index,
                                        run_generator_index,
                                        false /* is_pipeline_breaker */);
@@ -1563,6 +1577,7 @@ void ExecutionGenerator::convertSort(const P::SortPtr &physical_sort) {
       execution_plan_->addRelationalOperator(
           new DropTableOperator(
               *merged_runs_relation,
+              query_handle_->query_id(),
               optimizer_context_->catalog_database(),
               false /* only_drop_blocks */));
   execution_plan_->addDirectDependency(
@@ -1600,7 +1615,8 @@ void ExecutionGenerator::convertTableGenerator(
   TableGeneratorOperator *op =
       new TableGeneratorOperator(*output_relation,
                                  insert_destination_index,
-                                 generator_function_index);
+                                 generator_function_index,
+                                 query_handle_->query_id());
 
   const QueryPlan::DAGNodeIndex tablegen_index =
       execution_plan_->addRelationalOperator(op);

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/1290dd70/relational_operators/DropTableOperator.cpp
----------------------------------------------------------------------
diff --git a/relational_operators/DropTableOperator.cpp b/relational_operators/DropTableOperator.cpp
index f3a3a2c..256f6a1 100644
--- a/relational_operators/DropTableOperator.cpp
+++ b/relational_operators/DropTableOperator.cpp
@@ -45,7 +45,8 @@ bool DropTableOperator::getAllWorkOrders(
 
     // DropTableWorkOrder only drops blocks, if any.
     container->addNormalWorkOrder(
-        new DropTableWorkOrder(std::move(relation_blocks), storage_manager),
+        new DropTableWorkOrder(
+            query_id_, std::move(relation_blocks), storage_manager),
         op_index_);
 
     database_->setStatus(CatalogDatabase::Status::kPendingBlockDeletions);

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/1290dd70/relational_operators/DropTableOperator.hpp
----------------------------------------------------------------------
diff --git a/relational_operators/DropTableOperator.hpp b/relational_operators/DropTableOperator.hpp
index bf9b1b1..e5fc989 100644
--- a/relational_operators/DropTableOperator.hpp
+++ b/relational_operators/DropTableOperator.hpp
@@ -18,6 +18,7 @@
 #ifndef QUICKSTEP_RELATIONAL_OPERATORS_DROP_TABLE_OPERATOR_HPP_
 #define QUICKSTEP_RELATIONAL_OPERATORS_DROP_TABLE_OPERATOR_HPP_
 
+#include <cstddef>
 #include <utility>
 #include <vector>
 
@@ -55,14 +56,17 @@ class DropTableOperator : public RelationalOperator {
    * @brief Constructor.
    *
    * @param relation The relation to drop.
+   * @param The ID of the query to which this operator belongs.
    * @param database The databse where to drop \c relation.
    * @param only_drop_blocks If true, only drop the blocks belonging to \c
    *        relation, but leave \c relation in \c database.
    **/
   DropTableOperator(const CatalogRelation &relation,
+                    const std::size_t query_id,
                     CatalogDatabase *database,
                     const bool only_drop_blocks = false)
-      : relation_(relation),
+      : RelationalOperator(query_id),
+        relation_(relation),
         database_(database),
         only_drop_blocks_(only_drop_blocks),
         work_generated_(false) {}
@@ -95,17 +99,20 @@ class DropTableWorkOrder : public WorkOrder {
   /**
    * @brief Constructor.
    *
+   * @param The ID of the query to which this operator belongs.
    * @param blocks The blocks to drop.
    * @param storage_manager The StorageManager to use.
    * @param rel_id The relation id to drop.
    * @param catalog_database_cache The CatalogDatabaseCache in the distributed
    *        version.
    **/
-  DropTableWorkOrder(std::vector<block_id> &&blocks,
+  DropTableWorkOrder(const std::size_t query_id,
+                     std::vector<block_id> &&blocks,
                      StorageManager *storage_manager,
                      const relation_id rel_id = kInvalidCatalogId,
                      CatalogDatabaseLite *catalog_database_cache = nullptr)
-      : blocks_(std::move(blocks)),
+      : WorkOrder(query_id),
+        blocks_(std::move(blocks)),
         storage_manager_(DCHECK_NOTNULL(storage_manager)),
         rel_id_(rel_id),
         catalog_database_cache_(catalog_database_cache) {}

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/1290dd70/relational_operators/FinalizeAggregationOperator.cpp
----------------------------------------------------------------------
diff --git a/relational_operators/FinalizeAggregationOperator.cpp b/relational_operators/FinalizeAggregationOperator.cpp
index 410ec69..1dc4188 100644
--- a/relational_operators/FinalizeAggregationOperator.cpp
+++ b/relational_operators/FinalizeAggregationOperator.cpp
@@ -38,8 +38,10 @@ bool FinalizeAggregationOperator::getAllWorkOrders(
   if (blocking_dependencies_met_ && !started_) {
     started_ = true;
     container->addNormalWorkOrder(
-        new FinalizeAggregationWorkOrder(query_context->releaseAggregationState(aggr_state_index_),
-                                         query_context->getInsertDestination(output_destination_index_)),
+        new FinalizeAggregationWorkOrder(
+            query_id_,
+            query_context->releaseAggregationState(aggr_state_index_),
+            query_context->getInsertDestination(output_destination_index_)),
         op_index_);
   }
   return started_;

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/1290dd70/relational_operators/FinalizeAggregationOperator.hpp
----------------------------------------------------------------------
diff --git a/relational_operators/FinalizeAggregationOperator.hpp b/relational_operators/FinalizeAggregationOperator.hpp
index fb9608a..da93e34 100644
--- a/relational_operators/FinalizeAggregationOperator.hpp
+++ b/relational_operators/FinalizeAggregationOperator.hpp
@@ -18,6 +18,7 @@
 #ifndef QUICKSTEP_RELATIONAL_OPERATORS_FINALIZE_AGGREGATION_OPERATOR_HPP_
 #define QUICKSTEP_RELATIONAL_OPERATORS_FINALIZE_AGGREGATION_OPERATOR_HPP_
 
+#include <cstddef>
 #include <memory>
 
 #include "catalog/CatalogRelation.hpp"
@@ -57,11 +58,14 @@ class FinalizeAggregationOperator : public RelationalOperator {
    * @param output_relation The output relation.
    * @param output_destination_index The index of the InsertDestination in the
    *        QueryContext to insert aggregation results.
+   * @param The ID of the query to which this operator belongs.
    */
   FinalizeAggregationOperator(const QueryContext::aggregation_state_id aggr_state_index,
                               const CatalogRelation &output_relation,
-                              const QueryContext::insert_destination_id output_destination_index)
-      : aggr_state_index_(aggr_state_index),
+                              const QueryContext::insert_destination_id output_destination_index,
+                              const std::size_t query_id)
+      : RelationalOperator(query_id),
+        aggr_state_index_(aggr_state_index),
         output_relation_(output_relation),
         output_destination_index_(output_destination_index),
         started_(false) {}
@@ -101,13 +105,16 @@ class FinalizeAggregationWorkOrder : public WorkOrder {
    *
    * @note InsertWorkOrder takes ownership of \c state.
    *
+   * @param The ID of the query to which this operator belongs.
    * @param state The AggregationState to use.
    * @param output_destination The InsertDestination to insert aggregation
    *        results.
    */
-  FinalizeAggregationWorkOrder(AggregationOperationState *state,
+  FinalizeAggregationWorkOrder(const std::size_t query_id,
+                               AggregationOperationState *state,
                                InsertDestination *output_destination)
-      : state_(DCHECK_NOTNULL(state)),
+      : WorkOrder(query_id),
+        state_(DCHECK_NOTNULL(state)),
         output_destination_(DCHECK_NOTNULL(output_destination)) {}
 
   ~FinalizeAggregationWorkOrder() override {}

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/1290dd70/relational_operators/InsertOperator.cpp
----------------------------------------------------------------------
diff --git a/relational_operators/InsertOperator.cpp b/relational_operators/InsertOperator.cpp
index 8d083e5..3ec9933 100644
--- a/relational_operators/InsertOperator.cpp
+++ b/relational_operators/InsertOperator.cpp
@@ -40,8 +40,10 @@ bool InsertOperator::getAllWorkOrders(
 
     work_generated_ = true;
     container->addNormalWorkOrder(
-        new InsertWorkOrder(query_context->getInsertDestination(output_destination_index_),
-                            query_context->releaseTuple(tuple_index_)),
+        new InsertWorkOrder(
+            query_id_,
+            query_context->getInsertDestination(output_destination_index_),
+            query_context->releaseTuple(tuple_index_)),
         op_index_);
   }
   return work_generated_;

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/1290dd70/relational_operators/InsertOperator.hpp
----------------------------------------------------------------------
diff --git a/relational_operators/InsertOperator.hpp b/relational_operators/InsertOperator.hpp
index 8a06c94..5ac0051 100644
--- a/relational_operators/InsertOperator.hpp
+++ b/relational_operators/InsertOperator.hpp
@@ -18,6 +18,7 @@
 #ifndef QUICKSTEP_RELATIONAL_OPERATORS_INSERT_OPERATOR_HPP_
 #define QUICKSTEP_RELATIONAL_OPERATORS_INSERT_OPERATOR_HPP_
 
+#include <cstddef>
 #include <memory>
 
 #include "catalog/CatalogRelation.hpp"
@@ -56,11 +57,14 @@ class InsertOperator : public RelationalOperator {
    * @param output_destination_index The index of the InsertDestination in the
    *        QueryContext to insert the tuple.
    * @param tuple_index The index of the tuple to insert in the QueryContext.
+   * @param The ID of the query to which this operator belongs.
    **/
   InsertOperator(const CatalogRelation &output_relation,
                  const QueryContext::insert_destination_id output_destination_index,
-                 const QueryContext::tuple_id tuple_index)
-      : output_relation_(output_relation),
+                 const QueryContext::tuple_id tuple_index,
+                 const std::size_t query_id)
+      : RelationalOperator(query_id),
+        output_relation_(output_relation),
         output_destination_index_(output_destination_index),
         tuple_index_(tuple_index),
         work_generated_(false) {}
@@ -100,12 +104,15 @@ class InsertWorkOrder : public WorkOrder {
    *
    * @note InsertWorkOrder takes ownership of \c tuple.
    *
+   * @param The ID of the query to which this operator belongs.
    * @param output_destination The InsertDestination to insert the tuple.
    * @param tuple The tuple to insert.
    **/
-  InsertWorkOrder(InsertDestination *output_destination,
+  InsertWorkOrder(const std::size_t query_id,
+                  InsertDestination *output_destination,
                   Tuple *tuple)
-      : output_destination_(DCHECK_NOTNULL(output_destination)),
+      : WorkOrder(query_id),
+        output_destination_(DCHECK_NOTNULL(output_destination)),
         tuple_(DCHECK_NOTNULL(tuple)) {}
 
   ~InsertWorkOrder() override {}

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/1290dd70/relational_operators/NestedLoopsJoinOperator.cpp
----------------------------------------------------------------------
diff --git a/relational_operators/NestedLoopsJoinOperator.cpp b/relational_operators/NestedLoopsJoinOperator.cpp
index 5cc498b..317cc5d 100644
--- a/relational_operators/NestedLoopsJoinOperator.cpp
+++ b/relational_operators/NestedLoopsJoinOperator.cpp
@@ -82,6 +82,7 @@ bool NestedLoopsJoinOperator::getAllWorkOrders(
                                            right_block_id,
                                            query_context->getPredicate(join_predicate_index_),
                                            query_context->getScalarGroup(selection_index_),
+                                           query_id_,
                                            query_context->getInsertDestination(output_destination_index_),
                                            storage_manager),
               op_index_);
@@ -171,6 +172,7 @@ std::size_t NestedLoopsJoinOperator::getAllWorkOrdersHelperBothNotStored(WorkOrd
                                        right_relation_block_ids_[right_index],
                                        query_context->getPredicate(join_predicate_index_),
                                        query_context->getScalarGroup(selection_index_),
+                                       query_id_,
                                        query_context->getInsertDestination(output_destination_index_),
                                        storage_manager),
           op_index_);
@@ -205,6 +207,7 @@ bool NestedLoopsJoinOperator::getAllWorkOrdersHelperOneStored(WorkOrdersContaine
                 right_relation_block_ids_[right_index],
                 join_predicate,
                 selection,
+                query_id_,
                 output_destination,
                 storage_manager),
             op_index_);
@@ -224,6 +227,7 @@ bool NestedLoopsJoinOperator::getAllWorkOrdersHelperOneStored(WorkOrdersContaine
                                          right_block_id,
                                          join_predicate,
                                          selection,
+                                         query_id_,
                                          output_destination,
                                          storage_manager),
             op_index_);

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/1290dd70/relational_operators/NestedLoopsJoinOperator.hpp
----------------------------------------------------------------------
diff --git a/relational_operators/NestedLoopsJoinOperator.hpp b/relational_operators/NestedLoopsJoinOperator.hpp
index a52ca25..9d81d10 100644
--- a/relational_operators/NestedLoopsJoinOperator.hpp
+++ b/relational_operators/NestedLoopsJoinOperator.hpp
@@ -76,6 +76,7 @@ class NestedLoopsJoinOperator : public RelationalOperator {
    * @param left_relation_is_stored If left_input_relation is a stored relation.
    * @param right_relation_is_stored If right_input_relation is a stored
    *                                 relation.
+   * @param The ID of the query to which this operator belongs.
    **/
   NestedLoopsJoinOperator(const CatalogRelation &left_input_relation,
                           const CatalogRelation &right_input_relation,
@@ -84,8 +85,10 @@ class NestedLoopsJoinOperator : public RelationalOperator {
                           const QueryContext::predicate_id join_predicate_index,
                           const QueryContext::scalar_group_id selection_index,
                           bool left_relation_is_stored,
-                          bool right_relation_is_stored)
-      : left_input_relation_(left_input_relation),
+                          bool right_relation_is_stored,
+                          const std::size_t query_id)
+      : RelationalOperator(query_id),
+        left_input_relation_(left_input_relation),
         right_input_relation_(right_input_relation),
         output_relation_(output_relation),
         output_destination_index_(output_destination_index),
@@ -230,6 +233,7 @@ class NestedLoopsJoinWorkOrder : public WorkOrder {
    * @param selection A list of Scalars corresponding to the relation attributes
    *        in \c output_destination. Each Scalar is evaluated for the joined
    *        tuples, and the resulting value is inserted into the join result.
+   * @param The ID of the query to which this operator belongs.
    * @param output_destination The InsertDestination to insert the join results.
    * @param storage_manager The StorageManager to use.
    **/
@@ -239,9 +243,11 @@ class NestedLoopsJoinWorkOrder : public WorkOrder {
                            const block_id right_block_id,
                            const Predicate *join_predicate,
                            const std::vector<std::unique_ptr<const Scalar>> &selection,
+                           const std::size_t query_id,
                            InsertDestination *output_destination,
                            StorageManager *storage_manager)
-      : left_input_relation_(left_input_relation),
+      : WorkOrder(query_id),
+        left_input_relation_(left_input_relation),
         right_input_relation_(right_input_relation),
         left_block_id_(left_block_id),
         right_block_id_(right_block_id),

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/1290dd70/relational_operators/RebuildWorkOrder.hpp
----------------------------------------------------------------------
diff --git a/relational_operators/RebuildWorkOrder.hpp b/relational_operators/RebuildWorkOrder.hpp
index 5443d48..88e5248 100644
--- a/relational_operators/RebuildWorkOrder.hpp
+++ b/relational_operators/RebuildWorkOrder.hpp
@@ -55,12 +55,14 @@ class RebuildWorkOrder : public WorkOrder {
    * @param input_relation_id The ID of the CatalogRelation to which the given
    *        storage block belongs to.
    * @param scheduler_client_id The TMB client ID of the scheduler thread.
+   * @param The ID of the query to which this operator belongs.
    * @param bus A pointer to the TMB.
    **/
   RebuildWorkOrder(MutableBlockReference &&block_ref,
                    const std::size_t input_operator_index,
                    const relation_id input_relation_id,
                    const client_id scheduler_client_id,
+                   const std::size_t query_id,
                    MessageBus *bus)
       : block_ref_(std::move(block_ref)),
         input_operator_index_(input_operator_index),

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/1290dd70/relational_operators/SampleOperator.cpp
----------------------------------------------------------------------
diff --git a/relational_operators/SampleOperator.cpp b/relational_operators/SampleOperator.cpp
index 6842b28..b318ce4 100644
--- a/relational_operators/SampleOperator.cpp
+++ b/relational_operators/SampleOperator.cpp
@@ -58,6 +58,7 @@ bool SampleOperator::getAllWorkOrders(
                                     input_block_id,
                                     is_block_sample_,
                                     percentage_,
+                                    query_id_,
                                     output_destination,
                                     storage_manager),
                 op_index_);
@@ -72,6 +73,7 @@ bool SampleOperator::getAllWorkOrders(
                                   input_block_id,
                                   is_block_sample_,
                                   percentage_,
+                                  query_id_,
                                   output_destination,
                                   storage_manager),
               op_index_);
@@ -89,6 +91,7 @@ bool SampleOperator::getAllWorkOrders(
                                       input_relation_block_ids_[num_workorders_generated_],
                                       is_block_sample_,
                                       percentage_,
+                                      query_id_,
                                       output_destination,
                                       storage_manager),
                   op_index_);
@@ -101,7 +104,9 @@ bool SampleOperator::getAllWorkOrders(
               new SampleWorkOrder(input_relation_,
                                   input_relation_block_ids_[num_workorders_generated_],
                                   is_block_sample_,
-                                  percentage_, output_destination,
+                                  percentage_,
+                                  query_id_,
+                                  output_destination,
                                   storage_manager),
               op_index_);
           ++num_workorders_generated_;

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/1290dd70/relational_operators/SampleOperator.hpp
----------------------------------------------------------------------
diff --git a/relational_operators/SampleOperator.hpp b/relational_operators/SampleOperator.hpp
index 305de34..7f88eea 100644
--- a/relational_operators/SampleOperator.hpp
+++ b/relational_operators/SampleOperator.hpp
@@ -18,6 +18,7 @@
 #ifndef QUICKSTEP_RELATIONAL_OPERATORS_SAMPLE_OPERATOR_HPP_
 #define QUICKSTEP_RELATIONAL_OPERATORS_SAMPLE_OPERATOR_HPP_
 
+#include <cstddef>
 #include <memory>
 #include <vector>
 
@@ -64,15 +65,17 @@ class SampleOperator : public RelationalOperator {
    *        workorders.
    * @param is_block_sample Flag indicating whether the sample type is block or tuple.
    * @param percentage The percentage of data to be sampled.
-   *
+   * @param The ID of the query to which this operator belongs.
    **/
   SampleOperator(const CatalogRelation &input_relation,
                  const CatalogRelationSchema &output_relation,
                  const QueryContext::insert_destination_id output_destination_index,
                  const bool input_relation_is_stored,
                  const bool is_block_sample,
-                 const int percentage)
-      : input_relation_(input_relation),
+                 const int percentage,
+                 const std::size_t query_id)
+      : RelationalOperator(query_id),
+        input_relation_(input_relation),
         output_relation_(output_relation),
         output_destination_index_(output_destination_index),
         input_relation_is_stored_(input_relation_is_stored),
@@ -134,9 +137,11 @@ class SampleWorkOrder : public WorkOrder {
                   const block_id input_block_id,
                   const bool is_block_sample,
                   const int percentage,
+                  const std::size_t query_id,
                   InsertDestination *output_destination,
                   StorageManager *storage_manager)
-      : input_relation_(input_relation),
+      : WorkOrder(query_id),
+        input_relation_(input_relation),
         input_block_id_(input_block_id),
         is_block_sample_(is_block_sample),
         percentage_(percentage),

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/1290dd70/relational_operators/SaveBlocksOperator.cpp
----------------------------------------------------------------------
diff --git a/relational_operators/SaveBlocksOperator.cpp b/relational_operators/SaveBlocksOperator.cpp
index ac61407..3581090 100644
--- a/relational_operators/SaveBlocksOperator.cpp
+++ b/relational_operators/SaveBlocksOperator.cpp
@@ -38,6 +38,7 @@ bool SaveBlocksOperator::getAllWorkOrders(
         new SaveBlocksWorkOrder(
             destination_block_ids_[num_workorders_generated_],
             force_,
+            query_id_,
             storage_manager),
         op_index_);
     ++num_workorders_generated_;

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/1290dd70/relational_operators/SaveBlocksOperator.hpp
----------------------------------------------------------------------
diff --git a/relational_operators/SaveBlocksOperator.hpp b/relational_operators/SaveBlocksOperator.hpp
index 49195ea..3bcc6a7 100644
--- a/relational_operators/SaveBlocksOperator.hpp
+++ b/relational_operators/SaveBlocksOperator.hpp
@@ -18,6 +18,7 @@
 #ifndef QUICKSTEP_RELATIONAL_OPERATORS_SAVE_BLOCKS_OPERATOR_HPP_
 #define QUICKSTEP_RELATIONAL_OPERATORS_SAVE_BLOCKS_OPERATOR_HPP_
 
+#include <cstddef>
 #include <vector>
 
 #include "catalog/CatalogTypedefs.hpp"
@@ -50,11 +51,13 @@ class SaveBlocksOperator : public RelationalOperator {
   /**
    * @brief Constructor for saving only modified blocks in a relation.
    *
+   * @param query_id The ID of the query to which this operator belongs.
    * @param force If true, force writing of all blocks to disk, otherwise only
    *        write dirty blocks.
    **/
-  explicit SaveBlocksOperator(bool force = false)
-      : force_(force),
+  explicit SaveBlocksOperator(const std::size_t query_id, bool force = false)
+      : RelationalOperator(query_id),
+        force_(force),
         num_workorders_generated_(0) {}
 
   ~SaveBlocksOperator() override {}
@@ -96,10 +99,12 @@ class SaveBlocksWorkOrder : public WorkOrder {
    * @param save_block_id The id of the block to save.
    * @param force If true, force writing of all blocks to disk, otherwise only
    *        write dirty blocks.
+   * @param query_id The ID of the query to which this operator belongs.
    * @param storage_manager The StorageManager to use.
    **/
   SaveBlocksWorkOrder(const block_id save_block_id,
                       const bool force,
+                      const std::size_t query_id,
                       StorageManager *storage_manager)
       : save_block_id_(save_block_id),
         force_(force),

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/1290dd70/relational_operators/SelectOperator.cpp
----------------------------------------------------------------------
diff --git a/relational_operators/SelectOperator.cpp b/relational_operators/SelectOperator.cpp
index 69bb434..350890d 100644
--- a/relational_operators/SelectOperator.cpp
+++ b/relational_operators/SelectOperator.cpp
@@ -49,6 +49,7 @@ void SelectOperator::addWorkOrders(WorkOrdersContainer *container,
                               simple_projection_,
                               simple_selection_,
                               selection,
+                              query_id_,
                               output_destination,
                               storage_manager),
           op_index_);
@@ -63,6 +64,7 @@ void SelectOperator::addWorkOrders(WorkOrdersContainer *container,
               simple_projection_,
               simple_selection_,
               selection,
+              query_id_,
               output_destination,
               storage_manager),
           op_index_);
@@ -91,6 +93,7 @@ void SelectOperator::addPartitionAwareWorkOrders(WorkOrdersContainer *container,
                 simple_projection_,
                 simple_selection_,
                 selection,
+                query_id_,
                 output_destination,
                 storage_manager,
                 placement_scheme_->getNUMANodeForBlock(input_block_id)),
@@ -111,6 +114,7 @@ void SelectOperator::addPartitionAwareWorkOrders(WorkOrdersContainer *container,
                 simple_projection_,
                 simple_selection_,
                 selection,
+                query_id_,
                 output_destination,
                 storage_manager,
                 placement_scheme_->getNUMANodeForBlock(block_in_partition)),

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/1290dd70/relational_operators/SelectOperator.hpp
----------------------------------------------------------------------
diff --git a/relational_operators/SelectOperator.hpp b/relational_operators/SelectOperator.hpp
index 76f4cb6..4f5b8ca 100644
--- a/relational_operators/SelectOperator.hpp
+++ b/relational_operators/SelectOperator.hpp
@@ -76,14 +76,17 @@ class SelectOperator : public RelationalOperator {
    * @param input_relation_is_stored If input_relation is a stored relation and
    *        is fully available to the operator before it can start generating
    *        workorders.
+   * @param query_id The ID of the query to which this operator belongs.
    **/
   SelectOperator(const CatalogRelation &input_relation,
                  const CatalogRelation &output_relation,
                  const QueryContext::insert_destination_id output_destination_index,
                  const QueryContext::predicate_id predicate_index,
                  const QueryContext::scalar_group_id selection_index,
-                 const bool input_relation_is_stored)
-      : input_relation_(input_relation),
+                 const bool input_relation_is_stored,
+                 const std::size_t query_id)
+      : RelationalOperator(query_id),
+        input_relation_(input_relation),
         output_relation_(output_relation),
         output_destination_index_(output_destination_index),
         predicate_index_(predicate_index),
@@ -133,14 +136,17 @@ class SelectOperator : public RelationalOperator {
    * @param input_relation_is_stored If input_relation is a stored relation and
    *        is fully available to the operator before it can start generating
    *        workorders.
+   * @param query_id The ID of the query to which this operator belongs.
    **/
   SelectOperator(const CatalogRelation &input_relation,
                  const CatalogRelation &output_relation,
                  const QueryContext::insert_destination_id output_destination_index,
                  const QueryContext::predicate_id predicate_index,
                  std::vector<attribute_id> &&selection,
-                 const bool input_relation_is_stored)
-      : input_relation_(input_relation),
+                 const bool input_relation_is_stored,
+                 const std::size_t query_id)
+      : RelationalOperator(query_id),
+        input_relation_(input_relation),
         output_relation_(output_relation),
         output_destination_index_(output_destination_index),
         predicate_index_(predicate_index),
@@ -281,6 +287,7 @@ class SelectWorkOrder : public WorkOrder {
    *        simple_projection is true.
    * @param selection A list of Scalars which will be evaluated to project
    *        input tuples, used if \c simple_projection is false.
+   * @param query_id The ID of the query to which this WorkOrder belongs.
    * @param output_destination The InsertDestination to insert the selection
    *        results.
    * @param storage_manager The StorageManager to use.
@@ -291,10 +298,12 @@ class SelectWorkOrder : public WorkOrder {
                   const bool simple_projection,
                   const std::vector<attribute_id> &simple_selection,
                   const std::vector<std::unique_ptr<const Scalar>> *selection,
+                  const std::size_t query_id,
                   InsertDestination *output_destination,
                   StorageManager *storage_manager,
                   const numa_node_id numa_node = 0)
-      : input_relation_(input_relation),
+      : WorkOrder(query_id),
+        input_relation_(input_relation),
         input_block_id_(input_block_id),
         predicate_(predicate),
         simple_projection_(simple_projection),
@@ -320,6 +329,7 @@ class SelectWorkOrder : public WorkOrder {
    *        simple_projection is true.
    * @param selection A list of Scalars which will be evaluated to project
    *        input tuples, used if \c simple_projection is false.
+   * @param query_id The ID of the query to which this WorkOrder belongs.
    * @param output_destination The InsertDestination to insert the selection
    *        results.
    * @param storage_manager The StorageManager to use.
@@ -330,10 +340,12 @@ class SelectWorkOrder : public WorkOrder {
                   const bool simple_projection,
                   std::vector<attribute_id> &&simple_selection,
                   const std::vector<std::unique_ptr<const Scalar>> *selection,
+                  const std::size_t query_id,
                   InsertDestination *output_destination,
                   StorageManager *storage_manager,
                   const numa_node_id numa_node = 0)
-      : input_relation_(input_relation),
+      : WorkOrder(query_id),
+        input_relation_(input_relation),
         input_block_id_(input_block_id),
         predicate_(predicate),
         simple_projection_(simple_projection),

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/1290dd70/relational_operators/SortMergeRunOperator.cpp
----------------------------------------------------------------------
diff --git a/relational_operators/SortMergeRunOperator.cpp b/relational_operators/SortMergeRunOperator.cpp
index 7427d44..9db8de1 100644
--- a/relational_operators/SortMergeRunOperator.cpp
+++ b/relational_operators/SortMergeRunOperator.cpp
@@ -90,6 +90,7 @@ WorkOrder *SortMergeRunOperator::createWorkOrder(
       std::move(job->runs),
       top_k_,
       job->level,
+      query_id_,
       output_destination,
       storage_manager,
       op_index_,

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/1290dd70/relational_operators/SortMergeRunOperator.hpp
----------------------------------------------------------------------
diff --git a/relational_operators/SortMergeRunOperator.hpp b/relational_operators/SortMergeRunOperator.hpp
index f92affe..f54e925 100644
--- a/relational_operators/SortMergeRunOperator.hpp
+++ b/relational_operators/SortMergeRunOperator.hpp
@@ -88,6 +88,7 @@ class SortMergeRunOperator : public RelationalOperator {
    *              \c top_k is 0.
    * @param input_relation_is_stored Boolean to indicate is input relation is
    *                                 stored or streamed.
+   * @param query_id The ID of the query to which this operator belongs.
    **/
   SortMergeRunOperator(const CatalogRelation &input_relation,
                        const CatalogRelation &output_relation,
@@ -97,8 +98,10 @@ class SortMergeRunOperator : public RelationalOperator {
                        const QueryContext::sort_config_id sort_config_index,
                        const std::size_t merge_factor,
                        const std::size_t top_k,
-                       const bool input_relation_is_stored)
-      : input_relation_(input_relation),
+                       const bool input_relation_is_stored,
+                       const std::size_t query_id)
+      : RelationalOperator(query_id),
+        input_relation_(input_relation),
         output_relation_(output_relation),
         output_destination_index_(output_destination_index),
         sort_config_index_(sort_config_index),
@@ -216,6 +219,7 @@ class SortMergeRunWorkOrder : public WorkOrder {
    * @param input_runs Input runs to merge.
    * @param top_k If non-zero will merge only \c top_k tuples.
    * @param merge_level Merge level in the merge tree.
+   * @param query_id The ID of the query to which this WorkOrder belongs.
    * @param output_destination The InsertDestination to create new blocks.
    * @param storage_manager The StorageManager to use.
    * @param operator_index Merge-run operator index to send feedback messages
@@ -229,12 +233,14 @@ class SortMergeRunWorkOrder : public WorkOrder {
       std::vector<merge_run_operator::Run> &&input_runs,
       const std::size_t top_k,
       const std::size_t merge_level,
+      const std::size_t query_id,
       InsertDestination *output_destination,
       StorageManager *storage_manager,
       const std::size_t operator_index,
       const tmb::client_id scheduler_client_id,
       MessageBus *bus)
-      : sort_config_(sort_config),
+      : WorkOrder(query_id),
+        sort_config_(sort_config),
         run_relation_(run_relation),
         input_runs_(std::move(input_runs)),
         top_k_(top_k),

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/1290dd70/relational_operators/SortRunGenerationOperator.cpp
----------------------------------------------------------------------
diff --git a/relational_operators/SortRunGenerationOperator.cpp b/relational_operators/SortRunGenerationOperator.cpp
index 9bb3f51..e352f9e 100644
--- a/relational_operators/SortRunGenerationOperator.cpp
+++ b/relational_operators/SortRunGenerationOperator.cpp
@@ -54,6 +54,7 @@ bool SortRunGenerationOperator::getAllWorkOrders(
             new SortRunGenerationWorkOrder(input_relation_,
                                            input_block_id,
                                            sort_config,
+                                           query_id_,
                                            output_destination,
                                            storage_manager),
             op_index_);
@@ -69,6 +70,7 @@ bool SortRunGenerationOperator::getAllWorkOrders(
               input_relation_,
               input_relation_block_ids_[num_workorders_generated_],
               sort_config,
+              query_id_,
               output_destination,
               storage_manager),
           op_index_);

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/1290dd70/relational_operators/SortRunGenerationOperator.hpp
----------------------------------------------------------------------
diff --git a/relational_operators/SortRunGenerationOperator.hpp b/relational_operators/SortRunGenerationOperator.hpp
index 04290a9..7618790 100644
--- a/relational_operators/SortRunGenerationOperator.hpp
+++ b/relational_operators/SortRunGenerationOperator.hpp
@@ -83,13 +83,16 @@ class SortRunGenerationOperator : public RelationalOperator {
    * @param input_relation_is_stored Does the input relation contain the blocks
    *                                 to sort. If \c false, the blocks are
    *                                 streamed.
+   * @param query_id The ID of the query to which this operator belongs.
    **/
   SortRunGenerationOperator(const CatalogRelation &input_relation,
                             const CatalogRelation &output_relation,
                             const QueryContext::insert_destination_id output_destination_index,
                             const QueryContext::sort_config_id sort_config_index,
-                            bool input_relation_is_stored)
-      : input_relation_(input_relation),
+                            bool input_relation_is_stored,
+                            const std::size_t query_id)
+      : RelationalOperator(query_id),
+        input_relation_(input_relation),
         output_relation_(output_relation),
         output_destination_index_(output_destination_index),
         sort_config_index_(sort_config_index),
@@ -152,6 +155,7 @@ class SortRunGenerationWorkOrder : public WorkOrder {
    * @param input_block_id The block id.
    * @param sort_config The Sort configuration specifying ORDER BY, ordering,
    *        and null ordering.
+   * @param query_id The ID of the query to which this operator belongs.
    * @param output_destination The InsertDestination to store the sorted blocks
    *        of runs.
    * @param storage_manager The StorageManager to use.
@@ -159,9 +163,11 @@ class SortRunGenerationWorkOrder : public WorkOrder {
   SortRunGenerationWorkOrder(const CatalogRelationSchema &input_relation,
                              const block_id input_block_id,
                              const SortConfiguration &sort_config,
+                             const std::size_t query_id,
                              InsertDestination *output_destination,
                              StorageManager *storage_manager)
-      : input_relation_(input_relation),
+      : WorkOrder(query_id),
+        input_relation_(input_relation),
         input_block_id_(input_block_id),
         sort_config_(sort_config),
         output_destination_(DCHECK_NOTNULL(output_destination)),

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/1290dd70/relational_operators/TableGeneratorOperator.cpp
----------------------------------------------------------------------
diff --git a/relational_operators/TableGeneratorOperator.cpp b/relational_operators/TableGeneratorOperator.cpp
index 886d05f..fb1f743 100644
--- a/relational_operators/TableGeneratorOperator.cpp
+++ b/relational_operators/TableGeneratorOperator.cpp
@@ -42,8 +42,11 @@ bool TableGeneratorOperator::getAllWorkOrders(
     // Currently the generator function is not abstracted to be parallelizable,
     // so just produce one work order.
     container->addNormalWorkOrder(
-        new TableGeneratorWorkOrder(query_context->getGeneratorFunctionHandle(generator_function_index_),
-                                    query_context->getInsertDestination(output_destination_index_)),
+        new TableGeneratorWorkOrder(
+            query_context->getGeneratorFunctionHandle(
+                generator_function_index_),
+            query_id_,
+            query_context->getInsertDestination(output_destination_index_)),
         op_index_);
     started_ = true;
   }

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/1290dd70/relational_operators/TableGeneratorOperator.hpp
----------------------------------------------------------------------
diff --git a/relational_operators/TableGeneratorOperator.hpp b/relational_operators/TableGeneratorOperator.hpp
index a26b227..27efcad 100644
--- a/relational_operators/TableGeneratorOperator.hpp
+++ b/relational_operators/TableGeneratorOperator.hpp
@@ -60,12 +60,14 @@ class TableGeneratorOperator : public RelationalOperator {
    *        QueryContext to insert the generated output.
    * @param generator_function_index The index of the GeneratorFunctionHandle in
    *        the QueryContext.
-   *
+   * @param query_id The ID of the query to which this operator belongs.
    **/
   TableGeneratorOperator(const CatalogRelation &output_relation,
                          const QueryContext::insert_destination_id output_destination_index,
-                         const QueryContext::generator_function_id generator_function_index)
-      : output_relation_(output_relation),
+                         const QueryContext::generator_function_id generator_function_index,
+                         const std::size_t query_id)
+      : RelationalOperator(query_id),
+        output_relation_(output_relation),
         output_destination_index_(output_destination_index),
         generator_function_index_(generator_function_index),
         started_(false) {
@@ -112,12 +114,15 @@ class TableGeneratorWorkOrder : public WorkOrder {
    * @brief Constructor.
    *
    * @param generator_function The GeneratorFunctionHandle to use.
+   * @param query_id The ID of the query to which this operator belongs.
    * @param output_destination The InsertDestination to insert the generated
    *        output.
    **/
   TableGeneratorWorkOrder(const GeneratorFunctionHandle &function_handle,
+                          const std::size_t query_id,
                           InsertDestination *output_destination)
-      : function_handle_(function_handle),
+      : WorkOrder(query_id),
+        function_handle_(function_handle),
         output_destination_(DCHECK_NOTNULL(output_destination)) {}
 
   ~TableGeneratorWorkOrder() override {}

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/1290dd70/relational_operators/TextScanOperator.cpp
----------------------------------------------------------------------
diff --git a/relational_operators/TextScanOperator.cpp b/relational_operators/TextScanOperator.cpp
index 5ede6f7..8db5ef1 100644
--- a/relational_operators/TextScanOperator.cpp
+++ b/relational_operators/TextScanOperator.cpp
@@ -167,6 +167,7 @@ bool TextScanOperator::getAllWorkOrders(
           container->addNormalWorkOrder(
               new TextSplitWorkOrder(file,
                                      process_escape_sequences_,
+                                     query_id_,
                                      storage_manager,
                                      op_index_,
                                      scheduler_client_id,
@@ -185,6 +186,7 @@ bool TextScanOperator::getAllWorkOrders(
                                     blob_work.size,
                                     field_terminator_,
                                     process_escape_sequences_,
+                                    query_id_,
                                     output_destination,
                                     storage_manager),
               op_index_);
@@ -204,6 +206,7 @@ bool TextScanOperator::getAllWorkOrders(
             new TextScanWorkOrder(file,
                                   field_terminator_,
                                   process_escape_sequences_,
+                                  query_id_,
                                   output_destination,
                                   storage_manager),
             op_index_);
@@ -235,9 +238,11 @@ void TextScanOperator::receiveFeedbackMessage(const WorkOrder::FeedbackMessage &
 TextScanWorkOrder::TextScanWorkOrder(const std::string &filename,
                                      const char field_terminator,
                                      const bool process_escape_sequences,
+                                     const std::size_t query_id,
                                      InsertDestination *output_destination,
                                      StorageManager *storage_manager)
-    : is_file_(true),
+    : WorkOrder(query_id),
+      is_file_(true),
       filename_(filename),
       field_terminator_(field_terminator),
       text_blob_(0),
@@ -253,9 +258,11 @@ TextScanWorkOrder::TextScanWorkOrder(const block_id text_blob,
                                      const std::size_t text_size,
                                      const char field_terminator,
                                      const bool process_escape_sequences,
+                                     const std::size_t query_id,
                                      InsertDestination *output_destination,
                                      StorageManager *storage_manager)
-    : is_file_(false),
+    : WorkOrder(query_id),
+      is_file_(false),
       field_terminator_(field_terminator),
       text_blob_(text_blob),
       text_size_(text_size),

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/1290dd70/relational_operators/TextScanOperator.hpp
----------------------------------------------------------------------
diff --git a/relational_operators/TextScanOperator.hpp b/relational_operators/TextScanOperator.hpp
index a2d4ced..ad03f6a 100644
--- a/relational_operators/TextScanOperator.hpp
+++ b/relational_operators/TextScanOperator.hpp
@@ -134,14 +134,17 @@ class TextScanOperator : public RelationalOperator {
    * @param output_relation The output relation.
    * @param output_destination_index The index of the InsertDestination in the
    *        QueryContext to insert tuples.
+   * @param query_id The ID of the query to which this operator belongs.
    **/
   TextScanOperator(const std::string &file_pattern,
                    const char field_terminator,
                    const bool process_escape_sequences,
                    const bool parallelize_load,
                    const CatalogRelation &output_relation,
-                   const QueryContext::insert_destination_id output_destination_index)
-      : file_pattern_(file_pattern),
+                   const QueryContext::insert_destination_id output_destination_index,
+                   const std::size_t query_id)
+      : RelationalOperator(query_id),
+        file_pattern_(file_pattern),
         field_terminator_(field_terminator),
         process_escape_sequences_(process_escape_sequences),
         parallelize_load_(parallelize_load),
@@ -202,6 +205,7 @@ class TextScanWorkOrder : public WorkOrder {
    *        the text file.
    * @param process_escape_sequences Whether to decode escape sequences in the
    *        text file.
+   * @param query_id The ID of the query to which this operator belongs.
    * @param output_destination The InsertDestination to insert tuples.
    * @param storage_manager The StorageManager to use.
    **/
@@ -209,6 +213,7 @@ class TextScanWorkOrder : public WorkOrder {
       const std::string &filename,
       const char field_terminator,
       const bool process_escape_sequences,
+      const std::size_t query_id,
       InsertDestination *output_destination,
       StorageManager *storage_manager);
 
@@ -221,6 +226,7 @@ class TextScanWorkOrder : public WorkOrder {
    *        the text file.
    * @param process_escape_sequences Whether to decode escape sequences in the
    *        text file.
+   * @param query_id The ID of the query to which this operator belongs.
    * @param output_destination The InsertDestination to write the read tuples.
    * @param storage_manager The StorageManager to use.
    */
@@ -229,6 +235,7 @@ class TextScanWorkOrder : public WorkOrder {
       const std::size_t text_size,
       const char field_terminator,
       const bool process_escape_sequences,
+      const std::size_t query_id,
       InsertDestination *output_destination,
       StorageManager *storage_manager);
 
@@ -318,6 +325,7 @@ class TextSplitWorkOrder : public WorkOrder {
    * @param filename File to split into row-aligned blobs.
    * @param process_escape_sequences Whether to decode escape sequences in the
    *        text file.
+   * @param query_id The ID of the query to which this operator belongs.
    * @param storage_manager The StorageManager to use.
    * @param operator_index Operator index of the current operator. This is used
    *                       to send new-work available message to Foreman.
@@ -326,11 +334,13 @@ class TextSplitWorkOrder : public WorkOrder {
    */
   TextSplitWorkOrder(const std::string &filename,
                      const bool process_escape_sequences,
+                     const std::size_t query_id,
                      StorageManager *storage_manager,
                      const std::size_t operator_index,
                      const tmb::client_id scheduler_client_id,
                      MessageBus *bus)
-      : filename_(filename),
+      : WorkOrder(query_id),
+        filename_(filename),
         process_escape_sequences_(process_escape_sequences),
         storage_manager_(DCHECK_NOTNULL(storage_manager)),
         operator_index_(operator_index),

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/1290dd70/relational_operators/UpdateOperator.cpp
----------------------------------------------------------------------
diff --git a/relational_operators/UpdateOperator.cpp b/relational_operators/UpdateOperator.cpp
index 7585db1..b331a9c 100644
--- a/relational_operators/UpdateOperator.cpp
+++ b/relational_operators/UpdateOperator.cpp
@@ -57,6 +57,7 @@ bool UpdateOperator::getAllWorkOrders(
                               input_block_id,
                               query_context->getPredicate(predicate_index_),
                               query_context->getUpdateGroup(update_group_index_),
+                              query_id_,
                               query_context->getInsertDestination(relocation_destination_index_),
                               storage_manager,
                               op_index_,

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/1290dd70/relational_operators/UpdateOperator.hpp
----------------------------------------------------------------------
diff --git a/relational_operators/UpdateOperator.hpp b/relational_operators/UpdateOperator.hpp
index 78f8fe0..f1de0eb 100644
--- a/relational_operators/UpdateOperator.hpp
+++ b/relational_operators/UpdateOperator.hpp
@@ -72,6 +72,7 @@ class UpdateOperator : public RelationalOperator {
    * @param update_group_index The index of a update group (the map of
    *        attribute_ids to Scalars) which should be evaluated to get the new
    *        value for the corresponding attribute.
+   * @param query_id The ID of the query to which this operator belongs.
    *
    * @warning The constructed InsertDestination should belong to relation, but
    *          must NOT contain any pre-existing blocks.
@@ -79,8 +80,10 @@ class UpdateOperator : public RelationalOperator {
   UpdateOperator(const CatalogRelation &relation,
                  const QueryContext::insert_destination_id relocation_destination_index,
                  const QueryContext::predicate_id predicate_index,
-                 const QueryContext::update_group_id update_group_index)
-      : relation_(relation),
+                 const QueryContext::update_group_id update_group_index,
+                 const std::size_t query_id)
+      : RelationalOperator(query_id),
+        relation_(relation),
         relocation_destination_index_(relocation_destination_index),
         predicate_index_(predicate_index),
         update_group_index_(update_group_index),
@@ -130,6 +133,7 @@ class UpdateWorkOrder : public WorkOrder {
    * @param assignments The assignments (the map of attribute_ids to Scalars)
    *        which should be evaluated to get the new value for the corresponding
    *        attribute.
+   * @param query_id The ID of the query to which this operator belongs.
    * @param input_block_id The block id.
    * @param relocation_destination The InsertDestination to relocate tuples
    *        which can not be updated in-place.
@@ -143,12 +147,14 @@ class UpdateWorkOrder : public WorkOrder {
                   const block_id input_block_id,
                   const Predicate *predicate,
                   const std::unordered_map<attribute_id, std::unique_ptr<const Scalar>> &assignments,
+                  const std::size_t query_id,
                   InsertDestination *relocation_destination,
                   StorageManager *storage_manager,
                   const std::size_t update_operator_index,
                   const tmb::client_id scheduler_client_id,
                   MessageBus *bus)
-      : relation_(relation),
+      : WorkOrder(query_id),
+        relation_(relation),
         input_block_id_(input_block_id),
         predicate_(predicate),
         assignments_(assignments),

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/1290dd70/relational_operators/WorkOrderFactory.cpp
----------------------------------------------------------------------
diff --git a/relational_operators/WorkOrderFactory.cpp b/relational_operators/WorkOrderFactory.cpp
index 9828ab9..fdd694f 100644
--- a/relational_operators/WorkOrderFactory.cpp
+++ b/relational_operators/WorkOrderFactory.cpp
@@ -130,6 +130,7 @@ WorkOrder* WorkOrderFactory::ReconstructFromProto(const serialization::WorkOrder
       }
 
       return new DropTableWorkOrder(
+          proto.query_id(),
           move(blocks),
           storage_manager,
           proto.HasExtension(serialization::DropTableWorkOrder::relation_id)
@@ -140,10 +141,12 @@ WorkOrder* WorkOrderFactory::ReconstructFromProto(const serialization::WorkOrder
     case serialization::FINALIZE_AGGREGATION: {
       LOG(INFO) << "Creating FinalizeAggregationWorkOrder";
       return new FinalizeAggregationWorkOrder(
-          query_context->releaseAggregationState(
-              proto.GetExtension(serialization::FinalizeAggregationWorkOrder::aggr_state_index)),
+          proto.query_id(),
+          query_context->releaseAggregationState(proto.GetExtension(
+              serialization::FinalizeAggregationWorkOrder::aggr_state_index)),
           query_context->getInsertDestination(
-              proto.GetExtension(serialization::FinalizeAggregationWorkOrder::insert_destination_index)));
+              proto.GetExtension(serialization::FinalizeAggregationWorkOrder::
+                                     insert_destination_index)));
     }
     case serialization::HASH_JOIN: {
       const auto hash_join_work_order_type =
@@ -262,6 +265,7 @@ WorkOrder* WorkOrderFactory::ReconstructFromProto(const serialization::WorkOrder
     case serialization::INSERT: {
       LOG(INFO) << "Creating InsertWorkOrder";
       return new InsertWorkOrder(
+          proto.query_id(),
           query_context->getInsertDestination(
               proto.GetExtension(serialization::InsertWorkOrder::insert_destination_index)),
           query_context->releaseTuple(
@@ -280,6 +284,7 @@ WorkOrder* WorkOrderFactory::ReconstructFromProto(const serialization::WorkOrder
               proto.GetExtension(serialization::NestedLoopsJoinWorkOrder::join_predicate_index)),
           query_context->getScalarGroup(
               proto.GetExtension(serialization::NestedLoopsJoinWorkOrder::selection_index)),
+          proto.query_id(),
           query_context->getInsertDestination(
               proto.GetExtension(serialization::NestedLoopsJoinWorkOrder::insert_destination_index)),
           storage_manager);
@@ -292,6 +297,7 @@ WorkOrder* WorkOrderFactory::ReconstructFromProto(const serialization::WorkOrder
           proto.GetExtension(serialization::SampleWorkOrder::block_id),
           proto.GetExtension(serialization::SampleWorkOrder::is_block_sample),
           proto.GetExtension(serialization::SampleWorkOrder::percentage),
+          proto.query_id(),
           query_context->getInsertDestination(
               proto.GetExtension(serialization::SampleWorkOrder::insert_destination_index)),
           storage_manager);
@@ -301,6 +307,7 @@ WorkOrder* WorkOrderFactory::ReconstructFromProto(const serialization::WorkOrder
       return new SaveBlocksWorkOrder(
           proto.GetExtension(serialization::SaveBlocksWorkOrder::block_id),
           proto.GetExtension(serialization::SaveBlocksWorkOrder::force),
+          proto.query_id(),
           storage_manager);
     }
     case serialization::SELECT: {
@@ -324,6 +331,7 @@ WorkOrder* WorkOrderFactory::ReconstructFromProto(const serialization::WorkOrder
           simple_projection ? nullptr
                             : &query_context->getScalarGroup(
                                   proto.GetExtension(serialization::SelectWorkOrder::selection_index)),
+          proto.query_id(),
           query_context->getInsertDestination(
               proto.GetExtension(serialization::SelectWorkOrder::insert_destination_index)),
           storage_manager);
@@ -349,6 +357,7 @@ WorkOrder* WorkOrderFactory::ReconstructFromProto(const serialization::WorkOrder
           move(runs),
           proto.GetExtension(serialization::SortMergeRunWorkOrder::top_k),
           proto.GetExtension(serialization::SortMergeRunWorkOrder::merge_level),
+          proto.query_id(),
           query_context->getInsertDestination(
               proto.GetExtension(serialization::SortMergeRunWorkOrder::insert_destination_index)),
           storage_manager,
@@ -364,6 +373,7 @@ WorkOrder* WorkOrderFactory::ReconstructFromProto(const serialization::WorkOrder
           proto.GetExtension(serialization::SortRunGenerationWorkOrder::block_id),
           query_context->getSortConfig(
               proto.GetExtension(serialization::SortRunGenerationWorkOrder::sort_config_index)),
+          proto.query_id(),
           query_context->getInsertDestination(
               proto.GetExtension(serialization::SortRunGenerationWorkOrder::insert_destination_index)),
           storage_manager);
@@ -373,6 +383,7 @@ WorkOrder* WorkOrderFactory::ReconstructFromProto(const serialization::WorkOrder
       return new TableGeneratorWorkOrder(
           query_context->getGeneratorFunctionHandle(
               proto.GetExtension(serialization::TableGeneratorWorkOrder::generator_function_index)),
+          proto.query_id(),
           query_context->getInsertDestination(
               proto.GetExtension(serialization::TableGeneratorWorkOrder::insert_destination_index)));
     }
@@ -383,6 +394,7 @@ WorkOrder* WorkOrderFactory::ReconstructFromProto(const serialization::WorkOrder
             proto.GetExtension(serialization::TextScanWorkOrder::filename),
             proto.GetExtension(serialization::TextScanWorkOrder::field_terminator),
             proto.GetExtension(serialization::TextScanWorkOrder::process_escape_sequences),
+            proto.query_id(),
             query_context->getInsertDestination(
                 proto.GetExtension(serialization::TextScanWorkOrder::insert_destination_index)),
             storage_manager);
@@ -395,6 +407,7 @@ WorkOrder* WorkOrderFactory::ReconstructFromProto(const serialization::WorkOrder
             text_blob_proto.size(),
             proto.GetExtension(serialization::TextScanWorkOrder::field_terminator),
             proto.GetExtension(serialization::TextScanWorkOrder::process_escape_sequences),
+            proto.query_id(),
             query_context->getInsertDestination(
                 proto.GetExtension(serialization::TextScanWorkOrder::insert_destination_index)),
             storage_manager);
@@ -405,6 +418,7 @@ WorkOrder* WorkOrderFactory::ReconstructFromProto(const serialization::WorkOrder
       return new TextSplitWorkOrder(
           proto.GetExtension(serialization::TextSplitWorkOrder::filename),
           proto.GetExtension(serialization::TextSplitWorkOrder::process_escape_sequences),
+          proto.query_id(),
           storage_manager,
           proto.GetExtension(serialization::TextSplitWorkOrder::operator_index),
           shiftboss_client_id,
@@ -420,6 +434,7 @@ WorkOrder* WorkOrderFactory::ReconstructFromProto(const serialization::WorkOrder
               proto.GetExtension(serialization::UpdateWorkOrder::predicate_index)),
           query_context->getUpdateGroup(
               proto.GetExtension(serialization::UpdateWorkOrder::update_group_index)),
+          proto.query_id(),
           query_context->getInsertDestination(
               proto.GetExtension(serialization::UpdateWorkOrder::insert_destination_index)),
           storage_manager,

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/1290dd70/relational_operators/tests/AggregationOperator_unittest.cpp
----------------------------------------------------------------------
diff --git a/relational_operators/tests/AggregationOperator_unittest.cpp b/relational_operators/tests/AggregationOperator_unittest.cpp
index 2c408df..ace7951 100644
--- a/relational_operators/tests/AggregationOperator_unittest.cpp
+++ b/relational_operators/tests/AggregationOperator_unittest.cpp
@@ -281,8 +281,10 @@ class AggregationOperatorTest : public ::testing::Test {
     insert_destination_proto->set_relation_id(result_table_->getID());
     insert_destination_proto->set_relational_op_index(kOpIndex);
 
-    finalize_op_.reset(
-        new FinalizeAggregationOperator(aggr_state_index, *result_table_, insert_destination_index));
+    finalize_op_.reset(new FinalizeAggregationOperator(aggr_state_index,
+                                                       *result_table_,
+                                                       insert_destination_index,
+                                                       0 /* dummy query ID */));
 
     // Set up the QueryContext.
     query_context_.reset(new QueryContext(query_context_proto,
@@ -363,8 +365,10 @@ class AggregationOperatorTest : public ::testing::Test {
     insert_destination_proto->set_relation_id(result_table_->getID());
     insert_destination_proto->set_relational_op_index(kOpIndex);
 
-    finalize_op_.reset(
-        new FinalizeAggregationOperator(aggr_state_index, *result_table_, insert_destination_index));
+    finalize_op_.reset(new FinalizeAggregationOperator(aggr_state_index,
+                                                       *result_table_,
+                                                       insert_destination_index,
+                                                       0 /* dummy query ID */));
 
     // Set up the QueryContext.
     query_context_.reset(new QueryContext(query_context_proto,

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/1290dd70/relational_operators/tests/SortMergeRunOperator_unittest.cpp
----------------------------------------------------------------------
diff --git a/relational_operators/tests/SortMergeRunOperator_unittest.cpp b/relational_operators/tests/SortMergeRunOperator_unittest.cpp
index 50c508d..244091f 100644
--- a/relational_operators/tests/SortMergeRunOperator_unittest.cpp
+++ b/relational_operators/tests/SortMergeRunOperator_unittest.cpp
@@ -1573,7 +1573,8 @@ class SortMergeRunOperatorTest : public ::testing::Test {
                                              sort_config_index,
                                              merge_factor,
                                              top_k,
-                                             true));
+                                             true,
+                                             0  /* dummy query ID */));
     merge_op_->setOperatorIndex(kOpIndex);
 
     // Set up the QueryContext.
@@ -1616,7 +1617,8 @@ class SortMergeRunOperatorTest : public ::testing::Test {
                                              sort_config_index,
                                              merge_factor,
                                              top_k,
-                                             false));
+                                             false,
+                                             0  /* dummy query ID */));
     merge_op_->setOperatorIndex(kOpIndex);
 
     // Set up the QueryContext.

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/1290dd70/relational_operators/tests/SortRunGenerationOperator_unittest.cpp
----------------------------------------------------------------------
diff --git a/relational_operators/tests/SortRunGenerationOperator_unittest.cpp b/relational_operators/tests/SortRunGenerationOperator_unittest.cpp
index 7491778..6f24b92 100644
--- a/relational_operators/tests/SortRunGenerationOperator_unittest.cpp
+++ b/relational_operators/tests/SortRunGenerationOperator_unittest.cpp
@@ -358,7 +358,8 @@ class SortRunGenerationOperatorTest : public ::testing::Test {
                                       *result_table_,
                                       insert_destination_index,
                                       sort_config_index,
-                                      true /* is_stored */));
+                                      true /* is_stored */,
+                                      0  /* dummy query ID */));
     run_gen->setOperatorIndex(kOpIndex);
 
     // Set up the QueryContext.

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/1290dd70/relational_operators/tests/TextScanOperator_unittest.cpp
----------------------------------------------------------------------
diff --git a/relational_operators/tests/TextScanOperator_unittest.cpp b/relational_operators/tests/TextScanOperator_unittest.cpp
index 1dfad7b..7626686 100644
--- a/relational_operators/tests/TextScanOperator_unittest.cpp
+++ b/relational_operators/tests/TextScanOperator_unittest.cpp
@@ -193,7 +193,8 @@ TEST_F(TextScanOperatorTest, ScanTest) {
                            true,
                            false,
                            *relation_,
-                           output_destination_index));
+                           output_destination_index,
+                           0  /* dummy query ID */));
 
   // Setup query_context_.
   query_context_.reset(new QueryContext(query_context_proto,