Github user zuyu commented on a diff in the pull request:
https://github.com/apache/incubator-quickstep/pull/300#discussion_r140570548
--- Diff: query_optimizer/PhysicalGenerator.cpp ---
@@ -175,6 +176,8 @@ P::PhysicalPtr PhysicalGenerator::optimizePlan() {
rules.push_back(std::make_unique<Partition>(optimizer_context_));
}
+ rules.emplace_back(new FuseHashSelect());
--- End diff --
You may want to add a `gflags` with a default `true` value to switch
between using this rule or not, w/o rebuilding the binary.
---
