ClickHouse/dbms/src/Functions/FunctionsHashing.cpp

#include <DB/Functions/FunctionFactory.h>
#include <DB/Functions/FunctionsHashing.h>


namespace DB
{

void registerFunctionsHashing(FunctionFactory & factory)
{
    factory.registerFunction<FunctionHalfMD5>();
    factory.registerFunction<FunctionMD5>();
    factory.registerFunction<FunctionSHA1>();
    factory.registerFunction<FunctionSHA224>();
    factory.registerFunction<FunctionSHA256>();
    factory.registerFunction<FunctionSipHash64>();
    factory.registerFunction<FunctionSipHash128>();
    factory.registerFunction<FunctionCityHash64>();
    factory.registerFunction<FunctionFarmHash64>();
    factory.registerFunction<FunctionMetroHash64>();
    factory.registerFunction<FunctionIntHash32>();
    factory.registerFunction<FunctionIntHash64>();
    factory.registerFunction<FunctionURLHash>();
}

template <>
UInt64 toInteger<Float32>(Float32 x)
{
    UInt32 res;
    memcpy(&res, &x, sizeof(x));
    return res;
}

template <>
UInt64 toInteger<Float64>(Float64 x)
{
    UInt64 res;
    memcpy(&res, &x, sizeof(x));
    return res;
}

}