chore: optimize status code (#235)

src/common/error/src/status_code.rs

@@ -6,45 +6,46 @@ pub enum StatusCode {
     // ====== Begin of common status code ==============
     /// Success.
     Success = 0,
+
     /// Unknown error.
-    Unknown = 1,
+    Unknown = 1000,
     /// Unsupported operation.
-    Unsupported = 2,
+    Unsupported = 1001,
     /// Unexpected error, maybe there is a BUG.
-    Unexpected = 3,
+    Unexpected = 1002,
     /// Internal server error.
-    Internal = 4,
+    Internal = 1003,
     /// Invalid arguments.
-    InvalidArguments = 5,
+    InvalidArguments = 1004,
     // ====== End of common status code ================
 
     // ====== Begin of SQL related status code =========
     /// SQL Syntax error.
-    InvalidSyntax = 6,
+    InvalidSyntax = 2000,
     // ====== End of SQL related status code ===========
 
     // ====== Begin of query related status code =======
     /// Fail to create a plan for the query.
-    PlanQuery = 7,
+    PlanQuery = 3000,
     /// The query engine fail to execute query.
-    EngineExecuteQuery = 8,
+    EngineExecuteQuery = 3001,
     // ====== End of query related status code =========
 
     // ====== Begin of catalog related status code =====
     /// Table already exists.
-    TableAlreadyExists = 9,
-    TableNotFound = 10,
-    TableColumnNotFound = 11,
+    TableAlreadyExists = 4000,
+    TableNotFound = 4001,
+    TableColumnNotFound = 4002,
     // ====== End of catalog related status code =======
 
     // ====== Begin of storage related status code =====
     /// Storage is temporarily unable to handle the request
-    StorageUnavailable = 12,
+    StorageUnavailable = 5000,
     // ====== End of storage related status code =======
 
     // ====== Begin of server related status code =====
     /// Runtime resources exhausted, like creating threads failed.
-    RuntimeResourcesExhausted = 13,
+    RuntimeResourcesExhausted = 6000,
     // ====== End of server related status code =======
 }