Method file_statistics

datafusion/datasource/src/file_groups.rs:440–446

Get the specific file statistics for the given index If the index is None, return the `FileGroup` statistics

(&self, index: Option<usize>)

    /// Get the specific file statistics for the given index
    /// If the index is None, return the `FileGroup` statistics
    pub fn file_statistics(&self, index: Option<usize>) -> Option<&Statistics> {
        if let Some(index) = index {
            self.files.get(index).and_then(|f| f.statistics.as_deref())
        } else {
            self.statistics.as_deref()
        }
    }

    /// Get the mutable reference to the statistics for this group
    pub fn statistics_mut(&mut self) -> Option<&mut Statistics> {