ClickHouse

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#include <DataTypes/DataTypesNumber.h>
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#include <Functions/CustomWeekTransforms.h>
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#include <Functions/FunctionCustomWeekToSomething.h>
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#include <Functions/FunctionCustomWeekToDateOrDate32.h>
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#include <Functions/FunctionFactory.h>
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#include <Functions/IFunction.h>
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namespace DB
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{
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using FunctionToWeek = FunctionCustomWeekToSomething<DataTypeUInt8, ToWeekImpl>;
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using FunctionToYearWeek = FunctionCustomWeekToSomething<DataTypeUInt32, ToYearWeekImpl>;
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using FunctionToStartOfWeek = FunctionCustomWeekToDateOrDate32<ToStartOfWeekImpl>;
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using FunctionToLastDayOfWeek = FunctionCustomWeekToDateOrDate32<ToLastDayOfWeekImpl>;
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REGISTER_FUNCTION(ToCustomWeek)
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{
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    factory.registerFunction<FunctionToWeek>();
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    factory.registerFunction<FunctionToYearWeek>();
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    factory.registerFunction<FunctionToStartOfWeek>();
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    factory.registerFunction<FunctionToLastDayOfWeek>();
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    /// Compatibility aliases for mysql.
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    factory.registerAlias("week", "toWeek", FunctionFactory::CaseInsensitive);
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    factory.registerAlias("yearweek", "toYearWeek", FunctionFactory::CaseInsensitive);
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}
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}
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