alamb commented on code in PR #10924:
URL: https://github.com/apache/datafusion/pull/10924#discussion_r1640395611


##########
datafusion/core/src/datasource/file_format/parquet.rs:
##########
@@ -1449,8 +1400,15 @@ mod tests {
         // column c1
         let c1_stats = &stats.column_statistics[0];
         assert_eq!(c1_stats.null_count, Precision::Exact(1));
-        assert_eq!(c1_stats.max_value, Precision::Absent);
-        assert_eq!(c1_stats.min_value, Precision::Absent);
+        // Note in ASCII lower case is greater than upper case
+        assert_eq!(
+            c1_stats.max_value,
+            Precision::Exact(ScalarValue::from("bar"))

Review Comment:
   strings were previously not handled, but are now properly handled by 
`StatisticsConverter`



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