diff --git a/src/gausskernel/runtime/executor/nodeAgg.cpp b/src/gausskernel/runtime/executor/nodeAgg.cpp
index 5feabb98b..eb610fd67 100644
--- a/src/gausskernel/runtime/executor/nodeAgg.cpp
+++ b/src/gausskernel/runtime/executor/nodeAgg.cpp
@@ -290,7 +290,7 @@ Datum get_bit_and_initval(Oid aggtranstype, int typmod)
 
 bool is_binary_type_in_dolphin(Oid typeOid)
 {
-    if (u_sess->attr.attr_sql.dolphin) {
+    if (!u_sess->attr.attr_sql.dolphin) {
         return false;
     }
     return (typeOid == get_typeoid(PG_CATALOG_NAMESPACE, "binary")) ||