Function getNumValues

src/include/storage/table/column_chunk_data.h:218–218

    uint64_t getCapacity() const { return capacity; }
    uint64_t getNumValues() const { return numValues; }
    // TODO(Guodong): Alternatively, we can let `getNumValues` read from metadata when ON_DISK.
    virtual void resetNumValuesFromMetadata();
    virtual void setNumValues(uint64_t numValues_);