diff --git a/src/sql/engine/expr/ob_array_cast.cpp b/src/sql/engine/expr/ob_array_cast.cpp
index 01024101f1..65180ae656 100644
--- a/src/sql/engine/expr/ob_array_cast.cpp
+++ b/src/sql/engine/expr/ob_array_cast.cpp
@@ -392,6 +392,7 @@ int ObArrayCastUtils::add_json_node_to_array(common::ObIAllocator &alloc, ObJson
           LOG_WARN("not supported", K(ret));
           break;
         }
+        case ObUFloatType:
         case ObFloatType: {
           double val;
           ObArrayFixedSize<float> *dst_arr = static_cast<ObArrayFixedSize<float> *>(dst);
@@ -404,6 +405,7 @@ int ObArrayCastUtils::add_json_node_to_array(common::ObIAllocator &alloc, ObJson
           }
           break;
         }
+        case ObUDoubleType:
         case ObDoubleType: {
           double val;
           ObArrayFixedSize<double> *dst_arr = static_cast<ObArrayFixedSize<double> *>(dst);
diff --git a/src/sql/engine/expr/ob_expr_minus.cpp b/src/sql/engine/expr/ob_expr_minus.cpp
index 8de26ae3bb..9ac8b35734 100644
--- a/src/sql/engine/expr/ob_expr_minus.cpp
+++ b/src/sql/engine/expr/ob_expr_minus.cpp
@@ -65,21 +65,13 @@ int ObExprMinus::calc_result_type2(ObExprResType &type,
     if (type1.is_collection_sql_type() && type2.is_collection_sql_type()) {
       ObSQLSessionInfo *session = const_cast<ObSQLSessionInfo *>(type_ctx.get_session());
       ObExecContext *exec_ctx = OB_ISNULL(session) ? NULL : session->get_cur_exec_ctx();
-      if (type1.get_subschema_id() != type2.get_subschema_id()) {
-        ObExprResType coll_calc_type = type;
-        if (OB_FAIL(ObExprResultTypeUtil::get_array_calc_type(exec_ctx, type1, type2, coll_calc_type))) {
-          LOG_WARN("failed to check array compatibilty", K(ret));
-        } else {
-          type1.set_calc_meta(coll_calc_type);
-          type2.set_calc_meta(coll_calc_type);
-          type.set_collection(coll_calc_type.get_subschema_id());
-        }
+      ObExprResType coll_calc_type = type;
+      if (OB_FAIL(ObExprResultTypeUtil::get_array_calc_type(exec_ctx, type1, type2, coll_calc_type))) {
+        LOG_WARN("failed to check array compatibilty", K(ret));
       } else {
-        // subschem id in calc_meta is set to uint16_max in ObArithExprOperator::calc_result_type2
-        // set real subschema id to calc_meta from meta
-        type1.set_calc_meta(type1);
-        type2.set_calc_meta(type2);
-        type.set_collection(type1.get_subschema_id());
+        type1.set_calc_meta(coll_calc_type);
+        type2.set_calc_meta(coll_calc_type);
+        type.set_collection(coll_calc_type.get_subschema_id());
       }
     } else {
       // only support vector/array/varchar - vector/array/varchar now // array and varchar need cast to array(float)
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 ba0c979d0c..85c1e986eb 100644
--- a/src/sql/resolver/expr/ob_raw_expr_deduce_type.cpp
+++ b/src/sql/resolver/expr/ob_raw_expr_deduce_type.cpp
@@ -3609,7 +3609,7 @@ int ObRawExprDeduceType::set_array_agg_result_type(ObAggFunRawExpr &expr,
         ret = OB_ERR_UNEXPECTED;
         LOG_WARN("internal order expr is null", K(ret));
       } else if (order_expr->get_result_type().get_type() == ObCollectionSQLType) {
-        ret = OB_NOT_SUPPORTED;
+        ret = OB_ERR_INVALID_TYPE_FOR_OP;
         LOG_WARN("array type used for sorting isn't supported", K(ret));
       }
     }