Github user zuyu commented on a diff in the pull request:
https://github.com/apache/incubator-quickstep/pull/219#discussion_r107298842
--- Diff: query_execution/QueryContext.cpp ---
@@ -58,7 +59,8 @@ QueryContext::QueryContext(const
serialization::QueryContext &proto,
const CatalogDatabaseLite &database,
StorageManager *storage_manager,
const tmb::client_id scheduler_client_id,
- tmb::MessageBus *bus) {
+ tmb::MessageBus *bus)
+ : database_(static_cast<const CatalogDatabase&>(database)) {
--- End diff --
Alternatively, `QueryManagerBase` class keeps track of the global memory
usage, and `(Rebuild)WorkOrderCompleteMessge` contains the local memory usage
for its resource, i.e., a block or a hash table. Thus, `Foreman` or
`PolicyEnforcer` could sum up the memory usage in `QueryManageBase`.
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