[MetaSchedule] Migrate MemoryDatabase to C++ #12514
Merged
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This PR migrates the existing MemoryDatabase, which is implemented in
python at the moment, to C++. The original intent of having an in-memory
database that does not persist on disk is merely for testing, but as
times go on, we found it useful in production workflow, and thus decided
to migrate it C++ for potentially better performance.
cc @junrushao1994