diff --git a/src/client/src/tscFunctionImpl.c b/src/client/src/tscFunctionImpl.c
index 22240efe1417ba9e1715de8787154c47e5f4ce09..3a01a9b281d72cba832229576eebcd3e58984a6a 100644
--- a/src/client/src/tscFunctionImpl.c
+++ b/src/client/src/tscFunctionImpl.c
@@ -921,6 +921,10 @@ static void minMax_function(SQLFunctionCtx *pCtx, char *pOutput, int32_t isMin,
     *notNullElems = pCtx->size - pCtx->preAggVals.statis.numOfNull;
     assert(*notNullElems >= 0);
     
+    if (*notNullElems == 0){
+      return;
+    }
+
     void *  tval = NULL;
     int16_t index = 0;