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https://github.com/ClickHouse/ClickHouse.git
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support more hash functions for tuples
This commit is contained in:
CurtizJ
parent
4bf54337b9
commit
e3dea84265
@ -54,8 +54,10 @@ namespace ErrorCodes
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* Fast non-cryptographic hash function for strings:
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* cityHash64: String -> UInt64
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*
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* A non-cryptographic hash from a tuple of values of any types (uses cityHash64 for strings and intHash64 for numbers):
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* A non-cryptographic hashes from a tuple of values of any types (uses respective function for strings and intHash64 for numbers):
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* cityHash64: any* -> UInt64
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* sipHash64: any* -> UInt64
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* halfMD5: any* -> UInt64
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*
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* Fast non-cryptographic hash function from any integer:
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* intHash32: number -> UInt32
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@ -63,8 +65,31 @@ namespace ErrorCodes
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*
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*/
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struct IntHash32Impl
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{
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using ReturnType = UInt32;
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static UInt32 apply(UInt64 x)
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{
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/// seed is taken from /dev/urandom. It allows you to avoid undesirable dependencies with hashes in different data structures.
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return intHash32<0x75D9543DE018BF45ULL>(x);
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}
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};
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struct IntHash64Impl
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{
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using ReturnType = UInt64;
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static UInt64 apply(UInt64 x)
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{
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return intHash64(x ^ 0x4CF2D2BAAE6DA887ULL);
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}
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};
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struct HalfMD5Impl
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{
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static constexpr auto name = "halfMD5";
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using ReturnType = UInt64;
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static UInt64 apply(const char * begin, size_t size)
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@ -82,6 +107,11 @@ struct HalfMD5Impl
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return Poco::ByteOrder::flipBytes(buf.uint64_data); /// Compatibility with existing code.
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}
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static UInt64 mergeHashes(UInt64 h1, UInt64 h2)
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{
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return IntHash64Impl::apply(h1) ^ h2;
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}
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};
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struct MD5Impl
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@ -142,12 +172,18 @@ struct SHA256Impl
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struct SipHash64Impl
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{
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static constexpr auto name = "sipHash64";
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using ReturnType = UInt64;
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static UInt64 apply(const char * begin, size_t size)
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{
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return sipHash64(begin, size);
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}
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static UInt64 mergeHashes(UInt64 h1, UInt64 h2){
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return IntHash64Impl::apply(h1) ^ h2;
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}
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};
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@ -162,27 +198,6 @@ struct SipHash128Impl
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}
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};
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struct IntHash32Impl
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{
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using ReturnType = UInt32;
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static UInt32 apply(UInt64 x)
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{
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/// seed is taken from /dev/urandom. It allows you to avoid undesirable dependencies with hashes in different data structures.
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return intHash32<0x75D9543DE018BF45ULL>(x);
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}
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};
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struct IntHash64Impl
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{
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using ReturnType = UInt64;
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static UInt64 apply(UInt64 x)
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{
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return intHash64(x ^ 0x4CF2D2BAAE6DA887ULL);
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}
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};
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template <typename Impl>
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class FunctionStringHashFixedString : public IFunction
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@ -322,19 +337,18 @@ public:
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};
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/** We use hash functions called CityHash, FarmHash, MetroHash.
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* In this regard, this template is named with the words `NeighborhoodHash`.
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*/
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template <typename Impl>
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class FunctionNeighbourhoodHash64 : public IFunction
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class FunctionAnyHash : public IFunction
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{
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public:
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static constexpr auto name = Impl::name;
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static FunctionPtr create(const Context &) { return std::make_shared<FunctionNeighbourhoodHash64>(); }
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static FunctionPtr create(const Context &) { return std::make_shared<FunctionAnyHash>(); }
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private:
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using ToType = typename Impl::ReturnType;
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template <typename FromType, bool first>
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void executeIntType(const IColumn * column, ColumnUInt64::Container & vec_to)
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void executeIntType(const IColumn * column, typename ColumnVector<ToType>::Container & vec_to)
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{
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if (const ColumnVector<FromType> * col_from = checkAndGetColumn<ColumnVector<FromType>>(column))
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{
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@ -342,16 +356,26 @@ private:
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size_t size = vec_from.size();
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for (size_t i = 0; i < size; ++i)
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{
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UInt64 h = IntHash64Impl::apply(ext::bit_cast<UInt64>(vec_from[i]));
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ToType h;
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if constexpr (std::is_same_v<ToType, UInt64>)
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h = IntHash64Impl::apply(ext::bit_cast<UInt64>(vec_from[i]));
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else
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h = IntHash32Impl::apply(ext::bit_cast<UInt32>(vec_from[i]));
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if (first)
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vec_to[i] = h;
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else
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vec_to[i] = Impl::Hash128to64(typename Impl::uint128_t(vec_to[i], h));
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vec_to[i] = Impl::mergeHashes(vec_to[i], h);
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}
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}
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else if (auto col_from = checkAndGetColumnConst<ColumnVector<FromType>>(column))
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{
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const UInt64 hash = IntHash64Impl::apply(ext::bit_cast<UInt64>(col_from->template getValue<FromType>()));
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auto value = col_from->template getValue<FromType>();
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ToType hash;
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if constexpr (std::is_same_v<ToType, UInt64>)
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hash = IntHash64Impl::apply(ext::bit_cast<UInt64>(value));
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else
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hash = IntHash32Impl::apply(ext::bit_cast<UInt32>(value));
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size_t size = vec_to.size();
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if (first)
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{
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@ -360,7 +384,7 @@ private:
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else
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{
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for (size_t i = 0; i < size; ++i)
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vec_to[i] = Impl::Hash128to64(typename Impl::uint128_t(vec_to[i], hash));
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vec_to[i] = Impl::mergeHashes(vec_to[i], hash);
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}
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}
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else
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@ -370,7 +394,7 @@ private:
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}
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template <bool first>
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void executeString(const IColumn * column, ColumnUInt64::Container & vec_to)
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void executeString(const IColumn * column, typename ColumnVector<ToType>::Container & vec_to)
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{
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if (const ColumnString * col_from = checkAndGetColumn<ColumnString>(column))
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{
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@ -381,14 +405,14 @@ private:
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ColumnString::Offset current_offset = 0;
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for (size_t i = 0; i < size; ++i)
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{
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const UInt64 h = Impl::Hash64(
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const ToType h = Impl::apply(
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reinterpret_cast<const char *>(&data[current_offset]),
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offsets[i] - current_offset - 1);
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if (first)
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vec_to[i] = h;
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else
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vec_to[i] = Impl::Hash128to64(typename Impl::uint128_t(vec_to[i], h));
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vec_to[i] = Impl::mergeHashes(vec_to[i], h);
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current_offset = offsets[i];
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}
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@ -401,17 +425,17 @@ private:
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for (size_t i = 0; i < size; ++i)
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{
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const UInt64 h = Impl::Hash64(reinterpret_cast<const char *>(&data[i * n]), n);
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const ToType h = Impl::apply(reinterpret_cast<const char *>(&data[i * n]), n);
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if (first)
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vec_to[i] = h;
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else
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vec_to[i] = Impl::Hash128to64(typename Impl::uint128_t(vec_to[i], h));
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vec_to[i] = Impl::mergeHashes(vec_to[i], h);
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}
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}
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else if (const ColumnConst * col_from = checkAndGetColumnConstStringOrFixedString(column))
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{
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String value = col_from->getValue<String>().data();
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const UInt64 hash = Impl::Hash64(value.data(), value.size());
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const ToType hash = Impl::apply(value.data(), value.size());
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const size_t size = vec_to.size();
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if (first)
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@ -422,7 +446,7 @@ private:
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{
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for (size_t i = 0; i < size; ++i)
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{
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vec_to[i] = Impl::Hash128to64(typename Impl::uint128_t(vec_to[i], hash));
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vec_to[i] = Impl::mergeHashes(vec_to[i], hash);
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}
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}
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}
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@ -433,7 +457,7 @@ private:
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}
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template <bool first>
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void executeArray(const IDataType * type, const IColumn * column, ColumnUInt64::Container & vec_to)
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void executeArray(const IDataType * type, const IColumn * column, typename ColumnVector<ToType>::Container & vec_to)
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{
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const IDataType * nested_type = typeid_cast<const DataTypeArray *>(type)->getNestedType().get();
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@ -443,7 +467,7 @@ private:
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const ColumnArray::Offsets & offsets = col_from->getOffsets();
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const size_t nested_size = nested_column->size();
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ColumnUInt64::Container vec_temp(nested_size);
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typename ColumnVector<ToType>::Container vec_temp(nested_size);
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executeAny<true>(nested_type, nested_column, vec_temp);
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const size_t size = offsets.size();
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@ -453,14 +477,19 @@ private:
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{
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ColumnArray::Offset next_offset = offsets[i];
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UInt64 h = IntHash64Impl::apply(next_offset - current_offset);
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ToType h;
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if constexpr (std::is_same_v<ToType, UInt64>)
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h = IntHash64Impl::apply(next_offset - current_offset);
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else
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h = IntHash32Impl::apply(next_offset - current_offset);
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if (first)
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vec_to[i] = h;
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else
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vec_to[i] = Impl::Hash128to64(typename Impl::uint128_t(vec_to[i], h));
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vec_to[i] = Impl::mergeHashes(vec_to[i], h);
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for (size_t j = current_offset; j < next_offset; ++j)
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vec_to[i] = Impl::Hash128to64(typename Impl::uint128_t(vec_to[i], vec_temp[j]));
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vec_to[i] = Impl::mergeHashes(vec_to[i], vec_temp[j]);
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current_offset = offsets[i];
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}
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@ -478,7 +507,7 @@ private:
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}
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template <bool first>
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void executeAny(const IDataType * from_type, const IColumn * icolumn, ColumnUInt64::Container & vec_to)
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void executeAny(const IDataType * from_type, const IColumn * icolumn, typename ColumnVector<ToType>::Container & vec_to)
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{
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WhichDataType which(from_type);
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@ -504,7 +533,7 @@ private:
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ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
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}
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void executeForArgument(const IDataType * type, const IColumn * column, ColumnUInt64::Container & vec_to, bool & is_first)
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void executeForArgument(const IDataType * type, const IColumn * column, typename ColumnVector<ToType>::Container & vec_to, bool & is_first)
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{
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/// Flattening of tuples.
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if (const ColumnTuple * tuple = typeid_cast<const ColumnTuple *>(column))
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@ -549,20 +578,20 @@ public:
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DataTypePtr getReturnTypeImpl(const DataTypes & /*arguments*/) const override
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{
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return std::make_shared<DataTypeUInt64>();
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return std::make_shared<DataTypeNumber<ToType>>();
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}
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void executeImpl(Block & block, const ColumnNumbers & arguments, size_t result, size_t input_rows_count) override
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{
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size_t rows = input_rows_count;
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auto col_to = ColumnUInt64::create(rows);
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auto col_to = ColumnVector<ToType>::create(rows);
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ColumnUInt64::Container & vec_to = col_to->getData();
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typename ColumnVector<ToType>::Container & vec_to = col_to->getData();
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if (arguments.empty())
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{
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/// Constant random number from /dev/urandom is used as a hash value of empty list of arguments.
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vec_to.assign(rows, static_cast<UInt64>(0xe28dbde7fe22e41c));
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vec_to.assign(rows, static_cast<ToType>(0xe28dbde7fe22e41c));
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}
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/// The function supports arbitrary number of arguments of arbitrary types.
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@ -579,110 +608,6 @@ public:
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};
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template <typename Impl, typename Name>
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class FunctionStringHash : public IFunction
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{
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public:
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static constexpr auto name = Name::name;
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static FunctionPtr create(const Context &) { return std::make_shared<FunctionStringHash>(); }
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String getName() const override { return name; }
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bool isVariadic() const override { return false; }
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size_t getNumberOfArguments() const override { return 1; }
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DataTypePtr getReturnTypeImpl(const DataTypes & /*arguments */) const override
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{ return std::make_shared<DataTypeNumber<ToType>>(); }
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bool useDefaultImplementationForConstants() const override { return true; }
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void executeImpl(Block & block, const ColumnNumbers & arguments, size_t result, size_t input_rows_count) override
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{
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auto col_to = ColumnVector<ToType>::create(input_rows_count);
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typename ColumnVector<ToType>::Container & vec_to = col_to->getData();
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const ColumnWithTypeAndName & col = block.getByPosition(arguments[0]);
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const IDataType * from_type = col.type.get();
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const IColumn * icolumn = col.column.get();
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WhichDataType which(from_type);
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if (which.isUInt8()) executeIntType<UInt8>(icolumn, vec_to);
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else if (which.isUInt16()) executeIntType<UInt16>(icolumn, vec_to);
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else if (which.isUInt32()) executeIntType<UInt32>(icolumn, vec_to);
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else if (which.isUInt64()) executeIntType<UInt64>(icolumn, vec_to);
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else if (which.isInt8()) executeIntType<Int8>(icolumn, vec_to);
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else if (which.isInt16()) executeIntType<Int16>(icolumn, vec_to);
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else if (which.isInt32()) executeIntType<Int32>(icolumn, vec_to);
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else if (which.isInt64()) executeIntType<Int64>(icolumn, vec_to);
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else if (which.isEnum8()) executeIntType<Int8>(icolumn, vec_to);
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else if (which.isEnum16()) executeIntType<Int16>(icolumn, vec_to);
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else if (which.isDate()) executeIntType<UInt16>(icolumn, vec_to);
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else if (which.isDateTime()) executeIntType<UInt32>(icolumn, vec_to);
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else if (which.isFloat32()) executeIntType<Float32>(icolumn, vec_to);
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else if (which.isFloat64()) executeIntType<Float64>(icolumn, vec_to);
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else if (which.isStringOrFixedString()) executeString(icolumn, vec_to);
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else
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throw Exception("Unexpected type " + from_type->getName() + " of argument of function " + getName(),
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ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT);
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block.getByPosition(result).column = std::move(col_to);
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}
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private:
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using ToType = typename Impl::ReturnType;
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template <typename FromType>
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void executeIntType(const IColumn * column, typename ColumnVector<ToType>::Container & vec_to)
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{
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if (const ColumnVector<FromType> * col_from = checkAndGetColumn<ColumnVector<FromType>>(column))
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{
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const typename ColumnVector<FromType>::Container & vec_from = col_from->getData();
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size_t size = vec_from.size();
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for (size_t i = 0; i < size; ++i)
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{
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vec_to[i] = Impl::apply(reinterpret_cast<const char *>(&vec_from[i]), sizeof(FromType));
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}
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}
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else
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throw Exception("Illegal column " + column->getName()
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+ " of argument of function " + getName(),
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ErrorCodes::ILLEGAL_COLUMN);
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}
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void executeString(const IColumn * column, typename ColumnVector<ToType>::Container & vec_to)
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{
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if (const ColumnString * col_from = checkAndGetColumn<ColumnString>(column))
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{
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const typename ColumnString::Chars_t & data = col_from->getChars();
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const typename ColumnString::Offsets & offsets = col_from->getOffsets();
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size_t size = offsets.size();
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ColumnString::Offset current_offset = 0;
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for (size_t i = 0; i < size; ++i)
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{
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vec_to[i] = Impl::apply(
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reinterpret_cast<const char *>(&data[current_offset]),
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offsets[i] - current_offset - 1);
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current_offset = offsets[i];
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}
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}
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else if (const ColumnFixedString * col_from = checkAndGetColumn<ColumnFixedString>(column))
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{
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const typename ColumnString::Chars_t & data = col_from->getChars();
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size_t n = col_from->getN();
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size_t size = data.size() / n;
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for (size_t i = 0; i < size; ++i)
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vec_to[i] = Impl::apply(reinterpret_cast<const char *>(&data[i * n]), n);
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}
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else
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throw Exception("Illegal column " + column->getName()
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+ " of first argument of function " + getName(),
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ErrorCodes::ILLEGAL_COLUMN);
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}
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};
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/** Why we need MurmurHash2?
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* MurmurHash2 is an outdated hash function, superseded by MurmurHash3 and subsequently by CityHash, xxHash, HighwayHash.
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* Usually there is no reason to use MurmurHash.
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@ -692,26 +617,41 @@ private:
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*/
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struct MurmurHash2Impl32
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{
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static constexpr auto name = "murmurHash2_32";
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using ReturnType = UInt32;
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static UInt32 apply(const char * data, const size_t size)
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{
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return MurmurHash2(data, size, 0);
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}
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static UInt32 mergeHashes(UInt32 h1, UInt32 h2)
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{
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return IntHash32Impl::apply(h1) ^ h2;
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}
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};
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struct MurmurHash2Impl64
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{
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static constexpr auto name = "murmurHash2_64";
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using ReturnType = UInt64;
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|
||||
static UInt64 apply(const char * data, const size_t size)
|
||||
{
|
||||
return MurmurHash64A(data, size, 0);
|
||||
}
|
||||
|
||||
static UInt64 mergeHashes(UInt64 h1, UInt64 h2){
|
||||
return IntHash64Impl::apply(h1) ^ h2;
|
||||
}
|
||||
};
|
||||
|
||||
struct MurmurHash3Impl32
|
||||
{
|
||||
static constexpr auto name = "murmurHash3_32";
|
||||
|
||||
using ReturnType = UInt32;
|
||||
|
||||
static UInt32 apply(const char * data, const size_t size)
|
||||
@ -724,10 +664,16 @@ struct MurmurHash3Impl32
|
||||
MurmurHash3_x86_32(data, size, 0, bytes);
|
||||
return h;
|
||||
}
|
||||
|
||||
static UInt32 mergeHashes(UInt32 h1, UInt32 h2)
|
||||
{
|
||||
return IntHash32Impl::apply(h1) ^ h2;
|
||||
}
|
||||
};
|
||||
|
||||
struct MurmurHash3Impl64
|
||||
{
|
||||
static constexpr auto name = "murmurHash3_64";
|
||||
using ReturnType = UInt64;
|
||||
|
||||
static UInt64 apply(const char * data, const size_t size)
|
||||
@ -740,6 +686,11 @@ struct MurmurHash3Impl64
|
||||
MurmurHash3_x64_128(data, size, 0, bytes);
|
||||
return h[0] ^ h[1];
|
||||
}
|
||||
|
||||
static UInt64 mergeHashes(UInt64 h1, UInt64 h2)
|
||||
{
|
||||
return IntHash64Impl::apply(h1) ^ h2;
|
||||
}
|
||||
};
|
||||
|
||||
struct MurmurHash3Impl128
|
||||
@ -943,43 +894,39 @@ private:
|
||||
};
|
||||
|
||||
|
||||
struct NameHalfMD5 { static constexpr auto name = "halfMD5"; };
|
||||
struct NameSipHash64 { static constexpr auto name = "sipHash64"; };
|
||||
struct NameIntHash32 { static constexpr auto name = "intHash32"; };
|
||||
struct NameIntHash64 { static constexpr auto name = "intHash64"; };
|
||||
struct NameMurmurHash2_32 { static constexpr auto name = "murmurHash2_32"; };
|
||||
struct NameMurmurHash2_64 { static constexpr auto name = "murmurHash2_64"; };
|
||||
struct NameMurmurHash3_32 { static constexpr auto name = "murmurHash3_32"; };
|
||||
struct NameMurmurHash3_64 { static constexpr auto name = "murmurHash3_64"; };
|
||||
struct NameMurmurHash3_128 { static constexpr auto name = "murmurHash3_128"; };
|
||||
|
||||
|
||||
struct ImplCityHash64
|
||||
{
|
||||
static constexpr auto name = "cityHash64";
|
||||
using ReturnType = UInt64;
|
||||
using uint128_t = CityHash_v1_0_2::uint128;
|
||||
|
||||
static auto Hash128to64(const uint128_t & x) { return CityHash_v1_0_2::Hash128to64(x); }
|
||||
static auto Hash64(const char * s, const size_t len) { return CityHash_v1_0_2::CityHash64(s, len); }
|
||||
static auto mergeHashes(UInt64 h1, UInt64 h2) { return CityHash_v1_0_2::Hash128to64(uint128_t(h1, h2)); }
|
||||
static auto apply(const char * s, const size_t len) { return CityHash_v1_0_2::CityHash64(s, len); }
|
||||
};
|
||||
|
||||
// see farmhash.h for definition of NAMESPACE_FOR_HASH_FUNCTIONS
|
||||
struct ImplFarmHash64
|
||||
{
|
||||
static constexpr auto name = "farmHash64";
|
||||
using ReturnType = UInt64;
|
||||
using uint128_t = NAMESPACE_FOR_HASH_FUNCTIONS::uint128_t;
|
||||
|
||||
static auto Hash128to64(const uint128_t & x) { return NAMESPACE_FOR_HASH_FUNCTIONS::Hash128to64(x); }
|
||||
static auto Hash64(const char * s, const size_t len) { return NAMESPACE_FOR_HASH_FUNCTIONS::Hash64(s, len); }
|
||||
static auto mergeHashes(UInt64 h1, UInt64 h2) { return NAMESPACE_FOR_HASH_FUNCTIONS::Hash128to64(uint128_t(h1, h2)); }
|
||||
static auto apply(const char * s, const size_t len) { return NAMESPACE_FOR_HASH_FUNCTIONS::Hash64(s, len); }
|
||||
};
|
||||
|
||||
struct ImplMetroHash64
|
||||
{
|
||||
static constexpr auto name = "metroHash64";
|
||||
using ReturnType = UInt64;
|
||||
using uint128_t = CityHash_v1_0_2::uint128;
|
||||
|
||||
static auto Hash128to64(const uint128_t & x) { return CityHash_v1_0_2::Hash128to64(x); }
|
||||
static auto Hash64(const char * s, const size_t len)
|
||||
static auto mergeHashes(UInt64 h1, UInt64 h2) { return CityHash_v1_0_2::Hash128to64(uint128_t(h1, h2)); }
|
||||
static auto apply(const char * s, const size_t len)
|
||||
{
|
||||
union
|
||||
{
|
||||
@ -993,8 +940,8 @@ struct ImplMetroHash64
|
||||
}
|
||||
};
|
||||
|
||||
using FunctionHalfMD5 = FunctionStringHash<HalfMD5Impl, NameHalfMD5>;
|
||||
using FunctionSipHash64 = FunctionStringHash<SipHash64Impl, NameSipHash64>;
|
||||
using FunctionHalfMD5 = FunctionAnyHash<HalfMD5Impl>;
|
||||
using FunctionSipHash64 = FunctionAnyHash<SipHash64Impl>;
|
||||
using FunctionIntHash32 = FunctionIntHash<IntHash32Impl, NameIntHash32>;
|
||||
using FunctionIntHash64 = FunctionIntHash<IntHash64Impl, NameIntHash64>;
|
||||
using FunctionMD5 = FunctionStringHashFixedString<MD5Impl>;
|
||||
@ -1002,12 +949,12 @@ using FunctionSHA1 = FunctionStringHashFixedString<SHA1Impl>;
|
||||
using FunctionSHA224 = FunctionStringHashFixedString<SHA224Impl>;
|
||||
using FunctionSHA256 = FunctionStringHashFixedString<SHA256Impl>;
|
||||
using FunctionSipHash128 = FunctionStringHashFixedString<SipHash128Impl>;
|
||||
using FunctionCityHash64 = FunctionNeighbourhoodHash64<ImplCityHash64>;
|
||||
using FunctionFarmHash64 = FunctionNeighbourhoodHash64<ImplFarmHash64>;
|
||||
using FunctionMetroHash64 = FunctionNeighbourhoodHash64<ImplMetroHash64>;
|
||||
using FunctionMurmurHash2_32 = FunctionStringHash<MurmurHash2Impl32, NameMurmurHash2_32>;
|
||||
using FunctionMurmurHash2_64 = FunctionStringHash<MurmurHash2Impl64, NameMurmurHash2_64>;
|
||||
using FunctionMurmurHash3_32 = FunctionStringHash<MurmurHash3Impl32, NameMurmurHash3_32>;
|
||||
using FunctionMurmurHash3_64 = FunctionStringHash<MurmurHash3Impl64, NameMurmurHash3_64>;
|
||||
using FunctionCityHash64 = FunctionAnyHash<ImplCityHash64>;
|
||||
using FunctionFarmHash64 = FunctionAnyHash<ImplFarmHash64>;
|
||||
using FunctionMetroHash64 = FunctionAnyHash<ImplMetroHash64>;
|
||||
using FunctionMurmurHash2_32 = FunctionAnyHash<MurmurHash2Impl32>;
|
||||
using FunctionMurmurHash2_64 = FunctionAnyHash<MurmurHash2Impl64>;
|
||||
using FunctionMurmurHash3_32 = FunctionAnyHash<MurmurHash3Impl32>;
|
||||
using FunctionMurmurHash3_64 = FunctionAnyHash<MurmurHash3Impl64>;
|
||||
using FunctionMurmurHash3_128 = FunctionStringHashFixedString<MurmurHash3Impl128>;
|
||||
}
|
||||
|
||||
@ -1,26 +1,26 @@
|
||||
623211862
|
||||
3533626746
|
||||
2388617433
|
||||
2708309598
|
||||
3012058918
|
||||
1298551497
|
||||
864444010
|
||||
367840556
|
||||
2414502773
|
||||
670491991
|
||||
1343103100
|
||||
0
|
||||
0
|
||||
0
|
||||
0
|
||||
0
|
||||
0
|
||||
0
|
||||
1
|
||||
1343103100
|
||||
1996614413
|
||||
kek
|
||||
1
|
||||
14834356025302342401
|
||||
12725806677685968135
|
||||
12725806677685968135
|
||||
10577349846663553072
|
||||
4138058784
|
||||
3831157163
|
||||
3831157163
|
||||
1343103100
|
||||
11303473983767132390
|
||||
956517343494314387
|
||||
956517343494314387
|
||||
10577349846663553072
|
||||
6145F501578671E2877DBA2BE487AF7E
|
||||
16FE7483905CCE7A85670E43E4678877
|
||||
|
||||
@ -13,7 +13,6 @@ SELECT murmurHash2_32('\x03\0\0');
|
||||
SELECT murmurHash2_32(1);
|
||||
SELECT murmurHash2_32(toUInt16(2));
|
||||
|
||||
SELECT murmurHash2_32(2) = bitXor(toUInt32(0x5bd1e995 * bitXor(toUInt32(3 * 0x5bd1e995) AS a, bitShiftRight(a, 13))) AS b, bitShiftRight(b, 15));
|
||||
SELECT murmurHash2_32('\x02') = bitXor(toUInt32(0x5bd1e995 * bitXor(toUInt32(3 * 0x5bd1e995) AS a, bitShiftRight(a, 13))) AS b, bitShiftRight(b, 15));
|
||||
|
||||
SELECT murmurHash2_64('foo');
|
||||
|
||||
@ -0,0 +1,12 @@
|
||||
6847376565456338547
|
||||
15499510486101262177
|
||||
3822366986039497337
|
||||
617416965
|
||||
3293554683
|
||||
15433379
|
||||
6847376565456338547
|
||||
15499510486101262177
|
||||
3137889964064254064
|
||||
6847376565456338547
|
||||
15499510486101262177
|
||||
6284898493105666575
|
||||
15
dbms/tests/queries/0_stateless/00746_hashing_tuples.sql
Normal file
15
dbms/tests/queries/0_stateless/00746_hashing_tuples.sql
Normal file
@ -0,0 +1,15 @@
|
||||
SELECT sipHash64(1, 2, 3);
|
||||
SELECT sipHash64(1, 3, 2);
|
||||
SELECT sipHash64('a', [1, 2, 3], 4);
|
||||
|
||||
SELECT murmurHash2_32(1, 2, 3);
|
||||
SELECT murmurHash2_32(1, 3, 2);
|
||||
SELECT murmurHash2_32('a', [1, 2, 3], 4);
|
||||
|
||||
SELECT murmurHash2_64(1, 2, 3);
|
||||
SELECT murmurHash2_64(1, 3, 2);
|
||||
SELECT murmurHash2_64('a', [1, 2, 3], 4);
|
||||
|
||||
SELECT murmurHash3_64(1, 2, 3);
|
||||
SELECT murmurHash3_64(1, 3, 2);
|
||||
SELECT murmurHash3_64('a', [1, 2, 3], 4);
|
||||
Loading…
Reference in New Issue
Block a user