chore: minor code gc

Author: dantengsky

src/query/service/tests/it/storages/fuse/operations/gc.rs

@@ -59,9 +59,9 @@ async fn test_fuse_purge_normal_case() -> Result<()> {
         "do_gc: there should be 1 snapshot, 0 segment/block",
         expected_num_of_snapshot,
         0, // 0 snapshot statistic
-        1, // 0 segments
-        1, // 0 blocks
-        1, // 0 index
+        1, // 1 segments
+        1, // 1 blocks
+        1, // 1 index
         Some(()),
         None,
     )

src/query/service/tests/it/storages/fuse/operations/purge_drop.rs

@@ -50,7 +50,6 @@ async fn test_fuse_snapshot_truncate_in_drop_all_stmt() -> Result<()> {
     let qry = format!("drop table {}.{} all", db, tbl);
     execute_command(ctx.clone(), qry.as_str()).await?;
 
-    // TODO
     check_data_dir(
         &fixture,
         "drop table: there should be 1 snapshot, 0 segment/block",

src/query/storages/fuse/fuse/src/operations/truncate.rs

@@ -41,7 +41,6 @@ impl FuseTable {
                 Default::default(),
                 vec![],
                 self.cluster_key_meta.clone(),
-                // TODO table statistics should be reset?
                 prev_snapshot.table_statistics_location.clone(),
             );
             let loc = self.meta_location_generator();