adriangb commented on code in PR #19599:
URL: https://github.com/apache/datafusion/pull/19599#discussion_r2658055048
##########
datafusion/common/src/stats.rs:
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@@ -321,6 +321,13 @@ impl Statistics {
}
}
+ /// Returns the memory size in bytes.
+ pub fn heap_size(&self) -> usize {
+ // column_statistics + num_rows + total_byte_size
+ self.column_statistics.capacity() * size_of::<ColumnStatistics>()
Review Comment:
I think if we want to accurately calculate the sizes we need to propagate
that method all the way down. I'm not sure at what point we should just be
using https://crates.io/crates/deepsize or similar.
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