struct MemUsage {
size_t column_used_memory { 0 };
size_t column_capacity_memory { 0 };
size_t column_type_size { 0 };
size_t index_used_memory { 0 };
size_t index_capacity_memory { 0 };
size_t index_type_size { 0 };
template
friend S &operator << (S &stream, const MemUsage &mu);
};
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This struct holds the result of calling get_memory_usage() method on DataFrame.
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