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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2020/12/04 19:25:49 UTC

[GitHub] [arrow] andygrove commented on a change in pull request #8831: ARROW-10781 [Rust] [DataFusion] add the 'Statistics' interface in dat…

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
##########
@@ -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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