xudong963 commented on code in PR #15473:
URL: https://github.com/apache/datafusion/pull/15473#discussion_r2024400775
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datafusion/datasource/src/mod.rs:
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@@ -313,6 +314,78 @@ async fn find_first_newline(
Ok(index)
}
+/// Generates test files with min-max statistics in different overlap patterns
+/// Used by tests and benchmarks
+pub fn generate_test_files(num_files: usize, overlap_factor: f64) ->
Vec<FileGroup> {
Review Comment:
Also, based on my recent experience working in statistics, this function
will be very helpful for testing functionality later
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