diff --git a/src/sql/resolver/expr/ob_raw_expr_deduce_type.cpp b/src/sql/resolver/expr/ob_raw_expr_deduce_type.cpp
index c7b9b240fa..a03c3581b1 100644
--- a/src/sql/resolver/expr/ob_raw_expr_deduce_type.cpp
+++ b/src/sql/resolver/expr/ob_raw_expr_deduce_type.cpp
@@ -1941,8 +1941,8 @@ int ObRawExprDeduceType::check_group_aggr_param(ObAggFunRawExpr &expr)
                         || ob_is_lob_locator(param_expr->get_data_type())
                         || ob_is_json(param_expr->get_data_type()))
                     && (T_FUN_ORA_JSON_OBJECTAGG != expr.get_expr_type()
-                        && T_FUN_ORA_JSON_ARRAYAGG != expr.get_expr_type()
-                        && T_FUN_COUNT != expr.get_expr_type()))
+                        && T_FUN_ORA_JSON_ARRAYAGG != expr.get_expr_type()))
+                && !(T_FUN_COUNT == expr.get_expr_type() && ob_is_json(param_expr->get_data_type()))
                 && T_FUN_MEDIAN != expr.get_expr_type()
                 && T_FUN_GROUP_PERCENTILE_CONT != expr.get_expr_type()
                 && T_FUN_GROUP_PERCENTILE_DISC != expr.get_expr_type()