Github user zuyu commented on a diff in the pull request:
https://github.com/apache/incubator-quickstep/pull/229#discussion_r110305172
--- Diff: query_optimizer/resolver/Resolver.hpp ---
@@ -183,6 +184,24 @@ class Resolver {
const NameResolver *parent_resolver);
/**
+ * @brief Resolves multiple set operations at the same level.
+ */
+ logical::LogicalPtr resolveSetOperations(
+ const ParseSetOperation &parse_set_operations,
+ const std::string &set_operation_name,
+ const std::vector<const Type*> *type_hints,
+ const NameResolver *parent_resolver);
+
+ /**
+ * @brief Resolves a set operation and returns a logical plan.
+ */
+ logical::LogicalPtr resolveSetOperationDispatcher(
--- End diff --
How about renaming to `resolveSetOperation`?
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