diff --git a/source/libs/executor/src/projectoperator.c b/source/libs/executor/src/projectoperator.c
index 00b246afad5..ab7a15eacd6 100644
--- a/source/libs/executor/src/projectoperator.c
+++ b/source/libs/executor/src/projectoperator.c
@@ -293,7 +293,8 @@ SSDataBlock* doProjectOperation(SOperatorInfo* pOperator) {
 
       // for stream interval
       if (pBlock->info.type == STREAM_RETRIEVE || pBlock->info.type == STREAM_DELETE_RESULT ||
-          pBlock->info.type == STREAM_DELETE_DATA || pBlock->info.type == STREAM_CREATE_CHILD_TABLE) {
+          pBlock->info.type == STREAM_DELETE_DATA || pBlock->info.type == STREAM_CREATE_CHILD_TABLE ||
+          pBlock->info.type == STREAM_CHECKPOINT) {
         return pBlock;
       }