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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2022/10/27 17:37:06 UTC

[GitHub] [arrow-datafusion] alamb commented on a diff in pull request #3986: Add TableProvider.statistics method

alamb commented on code in PR #3986:
URL: https://github.com/apache/arrow-datafusion/pull/3986#discussion_r1007180678


##########
datafusion/core/src/datasource/datasource.rs:
##########
@@ -77,6 +78,11 @@ pub trait TableProvider: Sync + Send {
     ) -> Result<TableProviderFilterPushDown> {
         Ok(TableProviderFilterPushDown::Unsupported)
     }
+
+    /// Get statistics for this table, if available
+    fn statistics(&self) -> Option<Statistics> {

Review Comment:
   I wonder if any of the built in providers can give statistic (I am thinking Parquet) 🤔  
   
   Definitely something for a follow on PR



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