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Non significant change: slightly better [#CLICKHOUSE-3]

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This commit is contained in:
Alexey Milovidov 2018-06-04 18:01:24 +03:00
parent de72b4adde
commit 531e9d14be
1 changed files with 2 additions and 4 deletions
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6
dbms/src/AggregateFunctions/AggregateFunctionUniq.h
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@ -218,8 +218,7 @@ template <> struct AggregateFunctionUniqCombinedTraits<Float32>
{
static UInt32 hash(Float32 x)
{
UInt64 res = 0;
memcpy(reinterpret_cast<char *>(&res), reinterpret_cast<char *>(&x), sizeof(x));
UInt64 res = ext::bit_cast<UInt64>(x);
return static_cast<UInt32>(intHash64(res));
}
};
@ -228,8 +227,7 @@ template <> struct AggregateFunctionUniqCombinedTraits<Float64>
{
static UInt32 hash(Float64 x)
{
UInt64 res = 0;
memcpy(reinterpret_cast<char *>(&res), reinterpret_cast<char *>(&x), sizeof(x));
UInt64 res = ext::bit_cast<UInt64>(x);
return static_cast<UInt32>(intHash64(res));
}
};