ClickHouse

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#include <Functions/FunctionFactory.h>
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#include <Functions/DateTimeTransforms.h>
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#include <Functions/FunctionDateOrDateTimeToDateOrDate32.h>
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namespace DB
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{
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using FunctionToStartOfYear = FunctionDateOrDateTimeToDateOrDate32<ToStartOfYearImpl>;
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REGISTER_FUNCTION(ToStartOfYear)
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{
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    factory.registerFunction<FunctionToStartOfYear>();
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}
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}
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