diff --git a/src/gausskernel/optimizer/commands/tablecmds.cpp b/src/gausskernel/optimizer/commands/tablecmds.cpp
index 6321b2234..677932f75 100644
--- a/src/gausskernel/optimizer/commands/tablecmds.cpp
+++ b/src/gausskernel/optimizer/commands/tablecmds.cpp
@@ -10046,7 +10046,7 @@ static void ATExecSetNotNull(AlteredTableInfo* tab, Relation rel, const char* co
     heap_close(attr_rel, RowExclusiveLock);
 }
 
-bool FetchOnUpdateExpress(Relation rel, char* colName)
+bool FetchOnUpdateExpress(Relation rel, const char* colName)
 {
     HeapTuple htup = NULL;
     bool isnull = false;
diff --git a/src/gausskernel/runtime/executor/nodeModifyTable.cpp b/src/gausskernel/runtime/executor/nodeModifyTable.cpp
index 7c4452d0c..f7218ae85 100644
--- a/src/gausskernel/runtime/executor/nodeModifyTable.cpp
+++ b/src/gausskernel/runtime/executor/nodeModifyTable.cpp
@@ -443,10 +443,10 @@ static void RecoredUpdateExpr(ResultRelInfo *resultRelInfo, EState *estate, CmdT
             if (GetUpdateExprCol(tupdesc, i)) {
                 Expr *expr;
 
-                expr = (Expr *)build_column_default(rel, i + 1, false, true);
+                expr = (Expr *)build_column_default(resultRelInfo->ri_RelationDesc, i + 1, false, true);
                 if (expr == NULL)
                     ereport(ERROR, (errcode(ERRCODE_FEATURE_NOT_SUPPORTED), errmsg("no update expression found for column number %d of table \"%s\"", i + 1,
-                        RelationGetRelationName(rel))));
+                        RelationGetRelationName(resultRelInfo->ri_RelationDesc))));
 
                 resultRelInfo->ri_UpdatedExprs[i] = ExecPrepareExpr(expr, estate);
                 resultRelInfo->ri_NumUpdatedNeeded++;