ClickHouse/src/Functions/subtractHours.cpp

#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/FunctionDateOrDateTimeAddInterval.h>


namespace DB
{

using FunctionSubtractHours = FunctionDateOrDateTimeAddInterval<SubtractHoursImpl>;

REGISTER_FUNCTION(SubtractHours)
{
    factory.registerFunction<FunctionSubtractHours>();
}

}
Function move file 2021-05-17 07:30:42 +00:00			`#include <Functions/IFunction.h>`
Every function in its own file, part 5 [#CLICKHOUSE-2] 2018-09-26 00:31:40 +00:00			`#include <Functions/FunctionFactory.h>`
			`#include <Functions/FunctionDateOrDateTimeAddInterval.h>`


			`namespace DB`
			`{`

			`using FunctionSubtractHours = FunctionDateOrDateTimeAddInterval<SubtractHoursImpl>;`

Automated function registration Automated register all functions with below naming convention by iterating through the symbols: void DB::registerXXX(DB::FunctionFactory &) 2022-07-04 07:01:39 +00:00			`REGISTER_FUNCTION(SubtractHours)`
Every function in its own file, part 5 [#CLICKHOUSE-2] 2018-09-26 00:31:40 +00:00			`{`
			`factory.registerFunction<FunctionSubtractHours>();`
			`}`

			`}`