HappenLee commented on code in PR #18369:
URL: https://github.com/apache/doris/pull/18369#discussion_r1156849283
##########
be/src/vec/functions/to_time_function.cpp:
##########
@@ -107,6 +121,18 @@ void
register_function_to_time_function(SimpleFunctionFactory& factory) {
factory.register_function<FunctionDateTimeV2Date>();
factory.register_alias("date", "datev2");
factory.register_alias("to_date", "to_datev2");
+
+ /// @TEMPORARY: for be_exec_version=2
+#define REGISTER_OLD_VERSION(FUNC, FUNC_NAME)
\
+ factory.register_function<FUNC##Old>(std::string
{#FUNC_NAME}.append("_old")); \
Review Comment:
why add "_old"
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