XiaokunDing commented on a change in pull request #8831:
URL: https://github.com/apache/arrow/pull/8831#discussion_r537179373
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File path: rust/datafusion/src/datasource/datasource.rs
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@@ -24,6 +24,24 @@ use crate::arrow::datatypes::SchemaRef;
use crate::error::Result;
use crate::physical_plan::ExecutionPlan;
+/// The table statistics
+pub struct Statistics {
Review comment:
OK,I renamed it, but I think the `usize` type is better than `i64`
`num_rows: usize,`
`total_byte_size: usize,`
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