chore: fix collect region stat on non-base table (#2190)

src/catalog/src/lib.rs

@@ -25,7 +25,7 @@ use api::v1::meta::{RegionStat, TableIdent, TableName};
 use common_telemetry::{info, warn};
 use snafu::ResultExt;
 use table::engine::{EngineContext, TableEngineRef};
-use table::metadata::TableId;
+use table::metadata::{TableId, TableType};
 use table::requests::CreateTableRequest;
 use table::TableRef;
 
@@ -240,6 +240,10 @@ pub async fn datanode_stat(catalog_manager: &CatalogManagerRef) -> (u64, Vec<Reg
                     continue;
                 };
 
+                if table.table_type() != TableType::Base {
+                    continue;
+                }
+
                 let table_info = table.table_info();
                 let region_numbers = &table_info.meta.region_numbers;
                 region_number += region_numbers.len() as u64;