XiaokunDing commented on a change in pull request #8866:
URL: https://github.com/apache/arrow/pull/8866#discussion_r539061490
##########
File path: rust/datafusion/src/datasource/datasource.rs
##########
@@ -24,6 +24,15 @@ use crate::arrow::datatypes::SchemaRef;
use crate::error::Result;
use crate::physical_plan::ExecutionPlan;
+/// The table statistics
+#[derive(Clone)]
+pub struct Statistics {
+ /// The number of table rows
+ pub num_rows: i64,
Review comment:
I think here use `usize` is good than `u64`, because while we implement
the interface we should check the max value less than MAX `usize` and the
value strongly dependent on compile target.
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
