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Posted to commits@quickstep.apache.org by hb...@apache.org on 2016/08/19 20:00:52 UTC

incubator-quickstep git commit: Changed the bool flag

Repository: incubator-quickstep
Updated Branches:
  refs/heads/partitioned-aggregation 31557e7e2 -> f85b959ac


Changed the bool flag


Project: http://git-wip-us.apache.org/repos/asf/incubator-quickstep/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-quickstep/commit/f85b959a
Tree: http://git-wip-us.apache.org/repos/asf/incubator-quickstep/tree/f85b959a
Diff: http://git-wip-us.apache.org/repos/asf/incubator-quickstep/diff/f85b959a

Branch: refs/heads/partitioned-aggregation
Commit: f85b959aca0fd973375bffea8b00bceb7be4b6cb
Parents: 31557e7
Author: Harshad Deshmukh <hb...@apache.org>
Authored: Fri Aug 19 15:00:28 2016 -0500
Committer: Harshad Deshmukh <hb...@apache.org>
Committed: Fri Aug 19 15:00:28 2016 -0500

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 storage/AggregationOperationState.cpp | 3 ++-
 storage/AggregationOperationState.hpp | 5 +++++
 2 files changed, 7 insertions(+), 1 deletion(-)
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http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/f85b959a/storage/AggregationOperationState.cpp
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diff --git a/storage/AggregationOperationState.cpp b/storage/AggregationOperationState.cpp
index 4786531..38c9f9d 100644
--- a/storage/AggregationOperationState.cpp
+++ b/storage/AggregationOperationState.cpp
@@ -68,7 +68,7 @@ AggregationOperationState::AggregationOperationState(
     const HashTableImplType hash_table_impl_type,
     const std::vector<HashTableImplType> &distinctify_hash_table_impl_types,
     StorageManager *storage_manager)
-    : is_aggregate_partitioned_(estimated_num_entries > kPartitionedAggregateThreshold),
+    : is_aggregate_partitioned_(estimated_num_entries > kPartitionedAggregateThreshold && !group_by.empty()),
       input_relation_(input_relation),
       predicate_(predicate),
       group_by_list_(std::move(group_by)),
@@ -76,6 +76,7 @@ AggregationOperationState::AggregationOperationState(
       is_distinct_(std::move(is_distinct)),
       storage_manager_(storage_manager) {
   // Sanity checks: each aggregate has a corresponding list of arguments.
+  LOG(INFO) << "Aggregate partitioned: " << is_aggregate_partitioned_ << " with estimated # entries: " << estimated_num_entries;
   DCHECK(aggregate_functions.size() == arguments_.size());
 
   // Get the types of GROUP BY expressions for creating HashTables below.

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/f85b959a/storage/AggregationOperationState.hpp
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diff --git a/storage/AggregationOperationState.hpp b/storage/AggregationOperationState.hpp
index aa1bc83..7ab06a0 100644
--- a/storage/AggregationOperationState.hpp
+++ b/storage/AggregationOperationState.hpp
@@ -179,6 +179,11 @@ class AggregationOperationState {
   void finalizeAggregatePartitioned(const std::size_t partition_id,
                                     InsertDestination *output_destination);
 
+  /**
+   * @brief Find if the aggregation has been performed in a partitoned way.
+   *
+   * @note At present the partitioning is enabled only with GROUP BY.
+   **/
   bool isAggregatePartitioned() const {
     return is_aggregate_partitioned_;
   }