diff --git a/be/src/vec/exec/vaggregation_node.cpp b/be/src/vec/exec/vaggregation_node.cpp
index 1108a09735..4a337fb3ea 100644
--- a/be/src/vec/exec/vaggregation_node.cpp
+++ b/be/src/vec/exec/vaggregation_node.cpp
@@ -516,7 +516,7 @@ Status AggregationNode::_execute_without_key(Block* block) {
     SCOPED_TIMER(_build_timer);
     for (int i = 0; i < _aggregate_evaluators.size(); ++i) {
         _aggregate_evaluators[i]->execute_single_add(
-                block, _agg_data.without_key + _offsets_of_aggregate_states[i]);
+                block, _agg_data.without_key + _offsets_of_aggregate_states[i], &_agg_arena_pool);
     }
     return Status::OK();
 }
@@ -550,7 +550,7 @@ Status AggregationNode::_merge_without_key(Block* block) {
             }
         } else {
             _aggregate_evaluators[i]->execute_single_add(
-                    block, _agg_data.without_key + _offsets_of_aggregate_states[i]);
+                    block, _agg_data.without_key + _offsets_of_aggregate_states[i], &_agg_arena_pool);
         }
     }
     return Status::OK();
diff --git a/be/src/vec/exprs/vectorized_agg_fn.cpp b/be/src/vec/exprs/vectorized_agg_fn.cpp
index 0bf87254d5..f39c44ffff 100644
--- a/be/src/vec/exprs/vectorized_agg_fn.cpp
+++ b/be/src/vec/exprs/vectorized_agg_fn.cpp
@@ -114,7 +114,7 @@ void AggFnEvaluator::destroy(AggregateDataPtr place) {
 void AggFnEvaluator::execute_single_add(Block* block, AggregateDataPtr place, Arena* arena) {
     _calc_argment_columns(block);
     SCOPED_TIMER(_exec_timer);
-    _function->add_batch_single_place(block->rows(), place, _agg_columns.data(), nullptr);
+    _function->add_batch_single_place(block->rows(), place, _agg_columns.data(), arena);
 }
 
 void AggFnEvaluator::execute_batch_add(Block* block, size_t offset, AggregateDataPtr* places,
diff --git a/be/src/vec/functions/function_conv.cpp b/be/src/vec/functions/function_conv.cpp
index 6f755ff561..ae88f68a04 100644
--- a/be/src/vec/functions/function_conv.cpp
+++ b/be/src/vec/functions/function_conv.cpp
@@ -52,7 +52,7 @@ public:
         ColumnPtr argument_columns[3];
 
         for (int i = 0; i < 3; ++i) {
-            argument_columns[i] = block.get_by_position(arguments[i]).column;
+            argument_columns[i] = block.get_by_position(arguments[i]).column->convert_to_full_column_if_const();
             if (auto* nullable = check_and_get_column<ColumnNullable>(*argument_columns[i])) {
                 argument_columns[i] = nullable->get_nested_column_ptr();
                 VectorizedUtils::update_null_map(result_null_map_column->get_data(),
diff --git a/fe/fe-core/src/main/java/org/apache/doris/catalog/FunctionSet.java b/fe/fe-core/src/main/java/org/apache/doris/catalog/FunctionSet.java
index 0c8079cc6e..3a731d4bda 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/catalog/FunctionSet.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/catalog/FunctionSet.java
@@ -1445,7 +1445,7 @@ public class FunctionSet<min_initIN9doris_udf12DecimalV2ValEEEvPNS2_15FunctionCo
                 // vectorized 
                 addBuiltin(AggregateFunction.createBuiltin("multi_distinct_sum", Lists.newArrayList(t),
                     t,
-                    Type.BIGINT,
+                    t,
                     prefix + MULTI_DISTINCT_INIT_SYMBOL.get(t),
                     prefix + MULTI_DISTINCT_UPDATE_SYMBOL.get(t),
                     prefix + MULTI_DISTINCT_MERGE_SYMBOL.get(t),
diff --git a/gensrc/script/doris_builtins_functions.py b/gensrc/script/doris_builtins_functions.py
index d1c0100f31..1ce3395beb 100755
--- a/gensrc/script/doris_builtins_functions.py
+++ b/gensrc/script/doris_builtins_functions.py
@@ -188,7 +188,7 @@ visible_functions = [
         '', '', 'vec', 'ALWAYS_NULLABLE'],
     [['dayofweek'], 'INT', ['DATETIME'],
         '_ZN5doris18TimestampFunctions11day_of_weekEPN9doris_udf15FunctionContextERKNS1_11DateTimeValE',
-        '', '', 'vec', ''],
+        '', '', 'vec', 'ALWAYS_NULLABLE'],
     [['weekday'], 'INT', ['DATETIME'],
         '_ZN5doris18TimestampFunctions8week_dayEPN9doris_udf15FunctionContextERKNS1_11DateTimeValE',
         '', '', 'vec', 'ALWAYS_NULLABLE'],