diff --git a/src/query/src/qExecutor.c b/src/query/src/qExecutor.c
index e4a931641622501ccf57a3345fcd02f3a90738d6..03d19d760ad7a2f8a5ab04c6ca6b0ab96bb645ae 100644
--- a/src/query/src/qExecutor.c
+++ b/src/query/src/qExecutor.c
@@ -1713,9 +1713,6 @@ static void doHashGroupbyAgg(SOperatorInfo* pOperator, SGroupbyOperatorInfo *pIn
   int32_t num = 0;
   for (int32_t j = 0; j < pSDataBlock->info.rows; ++j) {
     char* val = ((char*)pColInfoData->pData) + bytes * j;
-    if (isNull(val, type)) {
-      continue;
-    }
 
     // Compare with the previous row of this column, and do not set the output buffer again if they are identical.
     if (pInfo->prevData == NULL) {