andygrove commented on a change in pull request #8831:
URL: https://github.com/apache/arrow/pull/8831#discussion_r536328582
##########
File path: rust/datafusion/src/datasource/csv.rs
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@@ -104,4 +105,8 @@ impl TableProvider for CsvFile {
batch_size,
)?))
}
+
+ fn statistics(&self) -> Option<Statistics> {
+ unimplemented!()
Review comment:
I think we should return `None` here to indicate that statistics are not
available (for all the current data sources).
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