diff --git a/src/client/src/tscSecondaryMerge.c b/src/client/src/tscSecondaryMerge.c
index aa6aaa5bf53f7976c3c691a764f6392fd3614401..9f628e3cc57703a85f7e9ccbebc4f3c6ee3884b0 100644
--- a/src/client/src/tscSecondaryMerge.c
+++ b/src/client/src/tscSecondaryMerge.c
@@ -696,7 +696,6 @@ int32_t tscLocalReducerEnvCreate(SSqlObj *pSql, tExtMemBuffer ***pMemBuffer, tOr
 
   *pFinalModel = createColumnModel(pSchema, pQueryInfo->exprsInfo.numOfExprs, capacity);
   tfree(pSchema);
-  free(*pMemBuffer);
 
   return TSDB_CODE_SUCCESS;