Github user zuyu commented on a diff in the pull request: https://github.com/apache/incubator-quickstep/pull/96#discussion_r75956345 --- Diff: relational_operators/WorkOrderFactory.cpp --- @@ -533,11 +530,13 @@ bool WorkOrderFactory::ProtoIsValid(const serialization::WorkOrder &proto, return false; } + const CatalogRelationSchema &build_relation = catalog_database.getRelationSchemaById(build_relation_id); const CatalogRelationSchema &probe_relation = catalog_database.getRelationSchemaById(probe_relation_id); for (int i = 0; i < proto.ExtensionSize(serialization::HashJoinWorkOrder::join_key_attributes); ++i) { const attribute_id attr_id = proto.GetExtension(serialization::HashJoinWorkOrder::join_key_attributes, i); - if (!probe_relation.hasAttributeWithId(attr_id)) { + if (!build_relation.hasAttributeWithId(attr_id) || --- End diff -- Note that I had removed the check for `build_relation`, as the `attr_id` in `probe_relation` may be different to that in `build_relation`, although both refer to the same `CatalogAttribute`.
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