🐛 Fix wrong ColumnIDs

#51
hyrise-mp · Aug 14, 2019 · 7587361 · 7587361
1 parent d040b83
commit 7587361
Showing 1 changed file with 1 addition and 8 deletions.
diff --git a/src/lib/logical_query_plan/union_node.cpp b/src/lib/logical_query_plan/union_node.cpp
@@ -24,14 +24,7 @@ const std::vector<std::shared_ptr<AbstractExpression>>& UnionNode::column_expres
 bool UnionNode::is_column_nullable(const ColumnID column_id) const {
   Assert(left_input() && right_input(), "Need both inputs to determine nullability");
 
-  const auto left_input_column_count = left_input()->column_expressions().size();
-  if (static_cast<size_t>(column_id) >= left_input_column_count) {
-    return left_input()->is_column_nullable(column_id);
-  } else {
-    const auto right_column_id =
-        static_cast<ColumnID>(column_id - static_cast<ColumnID::base_type>(left_input_column_count));
-    return left_input()->is_column_nullable(right_column_id);
-  }
+  return left_input()->is_column_nullable(column_id) || right_input()->is_column_nullable(column_id);
 }
 
 std::shared_ptr<AbstractLQPNode> UnionNode::_on_shallow_copy(LQPNodeMapping& node_mapping) const {