refactor: better status code

Signed-off-by: discord9 <discord9@163.com>

src/mito2/src/engine/scan_test.rs

@@ -75,7 +75,7 @@ async fn test_incremental_query_stale_error() {
         }
         _ => panic!("unexpected err: {err}"),
     };
-    assert_eq!(StatusCode::InvalidArguments, err.status_code());
+    assert_eq!(StatusCode::RequestOutdated, err.status_code());
     let err_msg = err.to_string();
     assert!(err_msg.contains("STALE_CURSOR"));
     assert!(err_msg.contains(&region_id.to_string()));

src/mito2/src/error.rs

@@ -1300,7 +1300,6 @@ impl ErrorExt for Error {
             | InvalidScanIndex { .. }
             | InvalidMeta { .. }
             | InvalidRequest { .. }
-            | IncrementalQueryStale { .. }
             | PartitionExprVersionMismatch { .. }
             | FillDefault { .. }
             | ConvertColumnDataType { .. }
@@ -1319,6 +1318,8 @@ impl ErrorExt for Error {
             | SerializePartitionExpr { .. }
             | InvalidSourceAndTargetRegion { .. } => StatusCode::InvalidArguments,
 
+            IncrementalQueryStale { .. } => StatusCode::RequestOutdated,
+
             RegionMetadataNotFound { .. }
             | Join { .. }
             | WorkerStopped { .. }