Yukang-Lian commented on code in PR #13737:
URL: https://github.com/apache/doris/pull/13737#discussion_r1007547644
##########
be/src/vec/functions/function_running_difference.cpp:
##########
@@ -0,0 +1,13 @@
+#include "vec/functions/function_running_difference.h"
+
+namespace doris::vectorized {
+
+void register_function_running_difference(SimpleFunctionFactory& factory) {
+ //factory.register_function<FunctionRunningDifferenceImpl<false>>();
+ factory.register_function<FunctionRunningDifference>();
+ //factory.register_function<FunctionCase<false, true>>();
+ //factory.register_function<FunctionCase<true, false>>();
+ //factory.register_function<FunctionCase<true, true>>();
+}
Review Comment:
plz remove redundant code.
##########
gensrc/script/doris_builtins_functions.py:
##########
@@ -2180,8 +2180,14 @@
[['split_part'], 'VARCHAR', ['VARCHAR', 'VARCHAR', 'INT'],
'_ZN5doris15StringFunctions10split_partEPN9doris_udf15FunctionContextERKNS1_9StringValES6_RKNS1_6IntValE',
'', '', 'vec', 'ALWAYS_NULLABLE'],
+
[['extract_url_parameter'], 'VARCHAR', ['VARCHAR', 'VARCHAR'],'','', '',
'vec', ''],
+ # runningdifference
+ [['running_difference'], 'INT', ['INT'],
+ '',
+ '', '', 'vec', 'ALWAYS_NOT_NULLABLE'],
+
Review Comment:
we need to register other data types. As follows
```suggestion
[['running_difference'], 'FLOAT', ['FLOAT'],
'',
'', '', 'vec', 'ALWAYS_NOT_NULLABLE'],```
##########
be/test/vec/function/function_running_difference_test.cpp:
##########
@@ -0,0 +1,26 @@
+#include <gtest/gtest.h>
+#include <time.h>
+
+#include <any>
+#include <cmath>
+#include <iostream>
+#include <string>
+
+#include "function_test_util.h"
+namespace doris::vectorized {
+ using namespace ut_type;
+ TEST(function_running_test, function_running_difference_test) {
+ std::string func_name = "running_difference";
+
+ InputTypeSet input_types = {TypeIndex::Int64};
+
+ DataSet data_set = {
+ {{(int64_t)1}, (int64_t)0},
+ {{(int64_t)2}, (int64_t)1},
+ {{(int64_t)3}, (int64_t)1},
+ {{(int64_t)5}, (int64_t)2}};
+
+ check_function<DataTypeInt64, true>(func_name, input_types, data_set);
+}
+
Review Comment:
We need to add more ut to test different data types such as `float` and
`date`.
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