Github user zuyu commented on a diff in the pull request:
https://github.com/apache/incubator-quickstep/pull/8#discussion_r65971710
--- Diff: relational_operators/WorkOrder.hpp ---
@@ -286,8 +286,15 @@ class WorkOrder {
}
protected:
- WorkOrder() {}
+ /**
+ * @brief Constructor.
+ *
+ * @param query_id The ID of the query to which this WorkOrder belongs.
+ **/
+ explicit WorkOrder(const std::size_t query_id = 0)
--- End diff --
What do you think if we removed the default value for `query_id`.
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