introduce a KeyError type: GenerationOutOfOrder

Signed-off-by: ekexium <[email protected]>
pingcap · Feb 20, 2024 · f5cb522 · f5cb522
1 parent a554af8
commit f5cb522
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Showing 2 changed files with 144 additions and 236 deletions.
diff --git a/proto/kvrpcpb.proto b/proto/kvrpcpb.proto
@@ -985,6 +985,7 @@ message KeyError {
     CommitTsTooLarge commit_ts_too_large = 9; // Calculated commit TS exceeds the limit given by the user.
     AssertionFailed assertion_failed = 10; // Assertion of a `Mutation` is evaluated as a failure.
     PrimaryMismatch primary_mismatch = 11; // CheckTxnStatus is sent to a lock that's not the primary.
+    GenerationOutOfOrder generation_out_of_order = 12; // There was an attempt to overwrite a lock with smaller generation.
 }
 
 message WriteConflict {
@@ -1044,6 +1045,11 @@ message PrimaryMismatch {
     LockInfo lock_info = 1;
 }
 
+message GenerationOutOfOrder {
+    uint64 generation = 1;
+    LockInfo lock_info = 2;
+}
+
 enum CommandPri {
     Normal = 0; // Normal is the default value.
     Low = 1;