mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-25 17:12:03 +00:00
610 lines
18 KiB
C++
610 lines
18 KiB
C++
#include <cstring>
|
|
|
|
#include <Compression/CompressionCodecT64.h>
|
|
#include <Compression/CompressionFactory.h>
|
|
#include <common/unaligned.h>
|
|
#include <Parsers/IAST.h>
|
|
#include <Parsers/ASTLiteral.h>
|
|
#include <IO/WriteHelpers.h>
|
|
|
|
|
|
namespace DB
|
|
{
|
|
|
|
namespace ErrorCodes
|
|
{
|
|
extern const int CANNOT_COMPRESS;
|
|
extern const int CANNOT_DECOMPRESS;
|
|
extern const int ILLEGAL_SYNTAX_FOR_CODEC_TYPE;
|
|
extern const int ILLEGAL_CODEC_PARAMETER;
|
|
extern const int LOGICAL_ERROR;
|
|
}
|
|
|
|
namespace
|
|
{
|
|
|
|
UInt8 codecId()
|
|
{
|
|
return static_cast<UInt8>(CompressionMethodByte::T64);
|
|
}
|
|
|
|
TypeIndex baseType(TypeIndex type_idx)
|
|
{
|
|
switch (type_idx)
|
|
{
|
|
case TypeIndex::Int8:
|
|
return TypeIndex::Int8;
|
|
case TypeIndex::Int16:
|
|
return TypeIndex::Int16;
|
|
case TypeIndex::Int32:
|
|
case TypeIndex::Decimal32:
|
|
return TypeIndex::Int32;
|
|
case TypeIndex::Int64:
|
|
case TypeIndex::Decimal64:
|
|
return TypeIndex::Int64;
|
|
case TypeIndex::UInt8:
|
|
case TypeIndex::Enum8:
|
|
return TypeIndex::UInt8;
|
|
case TypeIndex::UInt16:
|
|
case TypeIndex::Enum16:
|
|
case TypeIndex::Date:
|
|
return TypeIndex::UInt16;
|
|
case TypeIndex::UInt32:
|
|
case TypeIndex::DateTime:
|
|
return TypeIndex::UInt32;
|
|
case TypeIndex::UInt64:
|
|
return TypeIndex::UInt64;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return TypeIndex::Nothing;
|
|
}
|
|
|
|
TypeIndex typeIdx(const DataTypePtr & data_type)
|
|
{
|
|
if (!data_type)
|
|
return TypeIndex::Nothing;
|
|
|
|
WhichDataType which(*data_type);
|
|
switch (which.idx)
|
|
{
|
|
case TypeIndex::Int8:
|
|
case TypeIndex::UInt8:
|
|
case TypeIndex::Enum8:
|
|
case TypeIndex::Int16:
|
|
case TypeIndex::UInt16:
|
|
case TypeIndex::Enum16:
|
|
case TypeIndex::Date:
|
|
case TypeIndex::Int32:
|
|
case TypeIndex::UInt32:
|
|
case TypeIndex::DateTime:
|
|
case TypeIndex::Decimal32:
|
|
case TypeIndex::Int64:
|
|
case TypeIndex::UInt64:
|
|
case TypeIndex::Decimal64:
|
|
return which.idx;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return TypeIndex::Nothing;
|
|
}
|
|
|
|
void transpose64x8(UInt64 * src_dst)
|
|
{
|
|
auto * src8 = reinterpret_cast<const UInt8 *>(src_dst);
|
|
UInt64 dst[8] = {};
|
|
|
|
for (UInt32 i = 0; i < 64; ++i)
|
|
{
|
|
UInt64 value = src8[i];
|
|
dst[0] |= (value & 0x1) << i;
|
|
dst[1] |= ((value >> 1) & 0x1) << i;
|
|
dst[2] |= ((value >> 2) & 0x1) << i;
|
|
dst[3] |= ((value >> 3) & 0x1) << i;
|
|
dst[4] |= ((value >> 4) & 0x1) << i;
|
|
dst[5] |= ((value >> 5) & 0x1) << i;
|
|
dst[6] |= ((value >> 6) & 0x1) << i;
|
|
dst[7] |= ((value >> 7) & 0x1) << i;
|
|
}
|
|
|
|
memcpy(src_dst, dst, 8 * sizeof(UInt64));
|
|
}
|
|
|
|
void reverseTranspose64x8(UInt64 * src_dst)
|
|
{
|
|
UInt8 dst8[64];
|
|
|
|
for (UInt32 i = 0; i < 64; ++i)
|
|
{
|
|
dst8[i] = ((src_dst[0] >> i) & 0x1)
|
|
| (((src_dst[1] >> i) & 0x1) << 1)
|
|
| (((src_dst[2] >> i) & 0x1) << 2)
|
|
| (((src_dst[3] >> i) & 0x1) << 3)
|
|
| (((src_dst[4] >> i) & 0x1) << 4)
|
|
| (((src_dst[5] >> i) & 0x1) << 5)
|
|
| (((src_dst[6] >> i) & 0x1) << 6)
|
|
| (((src_dst[7] >> i) & 0x1) << 7);
|
|
}
|
|
|
|
memcpy(src_dst, dst8, 8 * sizeof(UInt64));
|
|
}
|
|
|
|
template <typename T>
|
|
void transposeBytes(T value, UInt64 * matrix, UInt32 col)
|
|
{
|
|
UInt8 * matrix8 = reinterpret_cast<UInt8 *>(matrix);
|
|
const UInt8 * value8 = reinterpret_cast<const UInt8 *>(&value);
|
|
|
|
if constexpr (sizeof(T) > 4)
|
|
{
|
|
matrix8[64 * 7 + col] = value8[7];
|
|
matrix8[64 * 6 + col] = value8[6];
|
|
matrix8[64 * 5 + col] = value8[5];
|
|
matrix8[64 * 4 + col] = value8[4];
|
|
}
|
|
|
|
if constexpr (sizeof(T) > 2)
|
|
{
|
|
matrix8[64 * 3 + col] = value8[3];
|
|
matrix8[64 * 2 + col] = value8[2];
|
|
}
|
|
|
|
if constexpr (sizeof(T) > 1)
|
|
matrix8[64 * 1 + col] = value8[1];
|
|
|
|
matrix8[64 * 0 + col] = value8[0];
|
|
}
|
|
|
|
template <typename T>
|
|
void reverseTransposeBytes(const UInt64 * matrix, UInt32 col, T & value)
|
|
{
|
|
auto * matrix8 = reinterpret_cast<const UInt8 *>(matrix);
|
|
|
|
if constexpr (sizeof(T) > 4)
|
|
{
|
|
value |= UInt64(matrix8[64 * 7 + col]) << (8 * 7);
|
|
value |= UInt64(matrix8[64 * 6 + col]) << (8 * 6);
|
|
value |= UInt64(matrix8[64 * 5 + col]) << (8 * 5);
|
|
value |= UInt64(matrix8[64 * 4 + col]) << (8 * 4);
|
|
}
|
|
|
|
if constexpr (sizeof(T) > 2)
|
|
{
|
|
value |= UInt32(matrix8[64 * 3 + col]) << (8 * 3);
|
|
value |= UInt32(matrix8[64 * 2 + col]) << (8 * 2);
|
|
}
|
|
|
|
if constexpr (sizeof(T) > 1)
|
|
value |= UInt32(matrix8[64 * 1 + col]) << (8 * 1);
|
|
|
|
value |= UInt32(matrix8[col]);
|
|
}
|
|
|
|
|
|
template <typename T>
|
|
void load(const char * src, T * buf, UInt32 tail = 64)
|
|
{
|
|
memcpy(buf, src, tail * sizeof(T));
|
|
}
|
|
|
|
template <typename T>
|
|
void store(const T * buf, char * dst, UInt32 tail = 64)
|
|
{
|
|
memcpy(dst, buf, tail * sizeof(T));
|
|
}
|
|
|
|
template <typename T>
|
|
void clear(T * buf)
|
|
{
|
|
for (UInt32 i = 0; i < 64; ++i)
|
|
buf[i] = 0;
|
|
}
|
|
|
|
|
|
/// UIntX[64] -> UInt64[N] transposed matrix, N <= X
|
|
template <typename T, bool full = false>
|
|
void transpose(const T * src, char * dst, UInt32 num_bits, UInt32 tail = 64)
|
|
{
|
|
UInt32 full_bytes = num_bits / 8;
|
|
UInt32 part_bits = num_bits % 8;
|
|
|
|
UInt64 matrix[64] = {};
|
|
for (UInt32 col = 0; col < tail; ++col)
|
|
transposeBytes(src[col], matrix, col);
|
|
|
|
if constexpr (full)
|
|
{
|
|
UInt64 * matrix_line = matrix;
|
|
for (UInt32 byte = 0; byte < full_bytes; ++byte, matrix_line += 8)
|
|
transpose64x8(matrix_line);
|
|
}
|
|
|
|
UInt32 full_size = sizeof(UInt64) * (num_bits - part_bits);
|
|
memcpy(dst, matrix, full_size);
|
|
dst += full_size;
|
|
|
|
/// transpose only partially filled last byte
|
|
if (part_bits)
|
|
{
|
|
UInt64 * matrix_line = &matrix[full_bytes * 8];
|
|
transpose64x8(matrix_line);
|
|
memcpy(dst, matrix_line, part_bits * sizeof(UInt64));
|
|
}
|
|
}
|
|
|
|
/// UInt64[N] transposed matrix -> UIntX[64]
|
|
template <typename T, bool full = false>
|
|
void reverseTranspose(const char * src, T * buf, UInt32 num_bits, UInt32 tail = 64)
|
|
{
|
|
UInt64 matrix[64] = {};
|
|
memcpy(matrix, src, num_bits * sizeof(UInt64));
|
|
|
|
UInt32 full_bytes = num_bits / 8;
|
|
UInt32 part_bits = num_bits % 8;
|
|
|
|
if constexpr (full)
|
|
{
|
|
UInt64 * matrix_line = matrix;
|
|
for (UInt32 byte = 0; byte < full_bytes; ++byte, matrix_line += 8)
|
|
reverseTranspose64x8(matrix_line);
|
|
}
|
|
|
|
if (part_bits)
|
|
{
|
|
UInt64 * matrix_line = &matrix[full_bytes * 8];
|
|
reverseTranspose64x8(matrix_line);
|
|
}
|
|
|
|
clear(buf);
|
|
for (UInt32 col = 0; col < tail; ++col)
|
|
reverseTransposeBytes(matrix, col, buf[col]);
|
|
}
|
|
|
|
template <typename T, typename MinMaxT = std::conditional_t<std::is_signed_v<T>, Int64, UInt64>>
|
|
void restoreUpperBits(T * buf, T upper_min, T upper_max [[maybe_unused]], T sign_bit [[maybe_unused]], UInt32 tail = 64)
|
|
{
|
|
if constexpr (std::is_signed_v<T>)
|
|
{
|
|
/// Restore some data as negatives and others as positives
|
|
if (sign_bit)
|
|
{
|
|
for (UInt32 col = 0; col < tail; ++col)
|
|
{
|
|
T & value = buf[col];
|
|
|
|
if (value & sign_bit)
|
|
value |= upper_min;
|
|
else
|
|
value |= upper_max;
|
|
}
|
|
|
|
return;
|
|
}
|
|
}
|
|
|
|
for (UInt32 col = 0; col < tail; ++col)
|
|
buf[col] |= upper_min;
|
|
}
|
|
|
|
|
|
UInt32 getValuableBitsNumber(UInt64 min, UInt64 max)
|
|
{
|
|
UInt64 diff_bits = min ^ max;
|
|
if (diff_bits)
|
|
return 64 - __builtin_clzll(diff_bits);
|
|
return 0;
|
|
}
|
|
|
|
UInt32 getValuableBitsNumber(Int64 min, Int64 max)
|
|
{
|
|
if (min < 0 && max >= 0)
|
|
{
|
|
if (min + max >= 0)
|
|
return getValuableBitsNumber(0ull, UInt64(max)) + 1;
|
|
else
|
|
return getValuableBitsNumber(0ull, UInt64(~min)) + 1;
|
|
}
|
|
else
|
|
return getValuableBitsNumber(UInt64(min), UInt64(max));
|
|
}
|
|
|
|
|
|
template <typename T>
|
|
void findMinMax(const char * src, UInt32 src_size, T & min, T & max)
|
|
{
|
|
min = unalignedLoad<T>(src);
|
|
max = unalignedLoad<T>(src);
|
|
|
|
const char * end = src + src_size;
|
|
for (; src < end; src += sizeof(T))
|
|
{
|
|
auto current = unalignedLoad<T>(src);
|
|
if (current < min)
|
|
min = current;
|
|
if (current > max)
|
|
max = current;
|
|
}
|
|
}
|
|
|
|
|
|
using Variant = CompressionCodecT64::Variant;
|
|
|
|
template <typename T, bool full>
|
|
UInt32 compressData(const char * src, UInt32 bytes_size, char * dst)
|
|
{
|
|
using MinMaxType = std::conditional_t<std::is_signed_v<T>, Int64, UInt64>;
|
|
|
|
static constexpr const UInt32 matrix_size = 64;
|
|
static constexpr const UInt32 header_size = 2 * sizeof(UInt64);
|
|
|
|
if (bytes_size % sizeof(T))
|
|
throw Exception("Cannot compress, data size " + toString(bytes_size) + " is not multiplier of " + toString(sizeof(T)),
|
|
ErrorCodes::CANNOT_COMPRESS);
|
|
|
|
UInt32 src_size = bytes_size / sizeof(T);
|
|
UInt32 num_full = src_size / matrix_size;
|
|
UInt32 tail = src_size % matrix_size;
|
|
|
|
T min, max;
|
|
findMinMax<T>(src, bytes_size, min, max);
|
|
MinMaxType min64 = min;
|
|
MinMaxType max64 = max;
|
|
|
|
/// Write header
|
|
{
|
|
memcpy(dst, &min64, sizeof(MinMaxType));
|
|
memcpy(dst + 8, &max64, sizeof(MinMaxType));
|
|
dst += header_size;
|
|
}
|
|
|
|
UInt32 num_bits = getValuableBitsNumber(min64, max64);
|
|
if (!num_bits)
|
|
return header_size;
|
|
|
|
T buf[matrix_size];
|
|
UInt32 src_shift = sizeof(T) * matrix_size;
|
|
UInt32 dst_shift = sizeof(UInt64) * num_bits;
|
|
for (UInt32 i = 0; i < num_full; ++i)
|
|
{
|
|
load<T>(src, buf, matrix_size);
|
|
transpose<T, full>(buf, dst, num_bits);
|
|
src += src_shift;
|
|
dst += dst_shift;
|
|
}
|
|
|
|
UInt32 dst_bytes = num_full * dst_shift;
|
|
|
|
if (tail)
|
|
{
|
|
load<T>(src, buf, tail);
|
|
transpose<T, full>(buf, dst, num_bits, tail);
|
|
dst_bytes += dst_shift;
|
|
}
|
|
|
|
return header_size + dst_bytes;
|
|
}
|
|
|
|
template <typename T, bool full>
|
|
void decompressData(const char * src, UInt32 bytes_size, char * dst, UInt32 uncompressed_size)
|
|
{
|
|
using MinMaxType = std::conditional_t<std::is_signed_v<T>, Int64, UInt64>;
|
|
|
|
static constexpr const UInt32 matrix_size = 64;
|
|
static constexpr const UInt32 header_size = 2 * sizeof(UInt64);
|
|
|
|
if (bytes_size < header_size)
|
|
throw Exception("Cannot decompress, data size " + toString(bytes_size) + " is less then T64 header",
|
|
ErrorCodes::CANNOT_DECOMPRESS);
|
|
|
|
if (uncompressed_size % sizeof(T))
|
|
throw Exception("Cannot decompress, unexpected uncompressed size " + toString(uncompressed_size),
|
|
ErrorCodes::CANNOT_DECOMPRESS);
|
|
|
|
UInt64 num_elements = uncompressed_size / sizeof(T);
|
|
MinMaxType min;
|
|
MinMaxType max;
|
|
|
|
/// Read header
|
|
{
|
|
memcpy(&min, src, sizeof(MinMaxType));
|
|
memcpy(&max, src + 8, sizeof(MinMaxType));
|
|
src += header_size;
|
|
bytes_size -= header_size;
|
|
}
|
|
|
|
UInt32 num_bits = getValuableBitsNumber(min, max);
|
|
if (!num_bits)
|
|
{
|
|
T min_value = min;
|
|
for (UInt32 i = 0; i < num_elements; ++i, dst += sizeof(T))
|
|
unalignedStore(dst, min_value);
|
|
return;
|
|
}
|
|
|
|
UInt32 src_shift = sizeof(UInt64) * num_bits;
|
|
UInt32 dst_shift = sizeof(T) * matrix_size;
|
|
|
|
if (!bytes_size || bytes_size % src_shift)
|
|
throw Exception("Cannot decompress, data size " + toString(bytes_size) + " is not multiplier of " + toString(src_shift),
|
|
ErrorCodes::CANNOT_DECOMPRESS);
|
|
|
|
UInt32 num_full = bytes_size / src_shift;
|
|
UInt32 tail = num_elements % matrix_size;
|
|
if (tail)
|
|
--num_full;
|
|
|
|
T upper_min = 0;
|
|
T upper_max [[maybe_unused]] = 0;
|
|
T sign_bit [[maybe_unused]] = 0;
|
|
if (num_bits < 64)
|
|
upper_min = UInt64(min) >> num_bits << num_bits;
|
|
|
|
if constexpr (std::is_signed_v<T>)
|
|
{
|
|
if (min < 0 && max >= 0 && num_bits < 64)
|
|
{
|
|
sign_bit = 1ull << (num_bits - 1);
|
|
upper_max = UInt64(max) >> num_bits << num_bits;
|
|
}
|
|
}
|
|
|
|
T buf[matrix_size];
|
|
for (UInt32 i = 0; i < num_full; ++i)
|
|
{
|
|
reverseTranspose<T, full>(src, buf, num_bits);
|
|
restoreUpperBits(buf, upper_min, upper_max, sign_bit);
|
|
store<T>(buf, dst, matrix_size);
|
|
src += src_shift;
|
|
dst += dst_shift;
|
|
}
|
|
|
|
if (tail)
|
|
{
|
|
reverseTranspose<T, full>(src, buf, num_bits, tail);
|
|
restoreUpperBits(buf, upper_min, upper_max, sign_bit, tail);
|
|
store<T>(buf, dst, tail);
|
|
}
|
|
}
|
|
|
|
template <typename T>
|
|
UInt32 compressData(const char * src, UInt32 src_size, char * dst, Variant variant)
|
|
{
|
|
if (variant == Variant::Bit)
|
|
return compressData<T, true>(src, src_size, dst);
|
|
return compressData<T, false>(src, src_size, dst);
|
|
}
|
|
|
|
template <typename T>
|
|
void decompressData(const char * src, UInt32 src_size, char * dst, UInt32 uncompressed_size, Variant variant)
|
|
{
|
|
if (variant == Variant::Bit)
|
|
decompressData<T, true>(src, src_size, dst, uncompressed_size);
|
|
else
|
|
decompressData<T, false>(src, src_size, dst, uncompressed_size);
|
|
}
|
|
|
|
}
|
|
|
|
|
|
UInt32 CompressionCodecT64::doCompressData(const char * src, UInt32 src_size, char * dst) const
|
|
{
|
|
UInt8 cookie = static_cast<UInt8>(type_idx) | (static_cast<UInt8>(variant) << 7);
|
|
memcpy(dst, &cookie, 1);
|
|
dst += 1;
|
|
|
|
switch (baseType(type_idx))
|
|
{
|
|
case TypeIndex::Int8:
|
|
return 1 + compressData<Int8>(src, src_size, dst, variant);
|
|
case TypeIndex::Int16:
|
|
return 1 + compressData<Int16>(src, src_size, dst, variant);
|
|
case TypeIndex::Int32:
|
|
return 1 + compressData<Int32>(src, src_size, dst, variant);
|
|
case TypeIndex::Int64:
|
|
return 1 + compressData<Int64>(src, src_size, dst, variant);
|
|
case TypeIndex::UInt8:
|
|
return 1 + compressData<UInt8>(src, src_size, dst, variant);
|
|
case TypeIndex::UInt16:
|
|
return 1 + compressData<UInt16>(src, src_size, dst, variant);
|
|
case TypeIndex::UInt32:
|
|
return 1 + compressData<UInt32>(src, src_size, dst, variant);
|
|
case TypeIndex::UInt64:
|
|
return 1 + compressData<UInt64>(src, src_size, dst, variant);
|
|
default:
|
|
break;
|
|
}
|
|
|
|
throw Exception("Connot compress with T64", ErrorCodes::CANNOT_COMPRESS);
|
|
}
|
|
|
|
void CompressionCodecT64::doDecompressData(const char * src, UInt32 src_size, char * dst, UInt32 uncompressed_size) const
|
|
{
|
|
if (!src_size)
|
|
throw Exception("Connot decompress with T64", ErrorCodes::CANNOT_DECOMPRESS);
|
|
|
|
UInt8 cookie = unalignedLoad<UInt8>(src);
|
|
src += 1;
|
|
src_size -= 1;
|
|
|
|
auto saved_variant = static_cast<Variant>(cookie >> 7);
|
|
auto saved_type_id = static_cast<TypeIndex>(cookie & 0x7F);
|
|
|
|
switch (baseType(saved_type_id))
|
|
{
|
|
case TypeIndex::Int8:
|
|
return decompressData<Int8>(src, src_size, dst, uncompressed_size, saved_variant);
|
|
case TypeIndex::Int16:
|
|
return decompressData<Int16>(src, src_size, dst, uncompressed_size, saved_variant);
|
|
case TypeIndex::Int32:
|
|
return decompressData<Int32>(src, src_size, dst, uncompressed_size, saved_variant);
|
|
case TypeIndex::Int64:
|
|
return decompressData<Int64>(src, src_size, dst, uncompressed_size, saved_variant);
|
|
case TypeIndex::UInt8:
|
|
return decompressData<UInt8>(src, src_size, dst, uncompressed_size, saved_variant);
|
|
case TypeIndex::UInt16:
|
|
return decompressData<UInt16>(src, src_size, dst, uncompressed_size, saved_variant);
|
|
case TypeIndex::UInt32:
|
|
return decompressData<UInt32>(src, src_size, dst, uncompressed_size, saved_variant);
|
|
case TypeIndex::UInt64:
|
|
return decompressData<UInt64>(src, src_size, dst, uncompressed_size, saved_variant);
|
|
default:
|
|
break;
|
|
}
|
|
|
|
throw Exception("Connot decompress with T64", ErrorCodes::CANNOT_DECOMPRESS);
|
|
}
|
|
|
|
void CompressionCodecT64::useInfoAboutType(DataTypePtr data_type)
|
|
{
|
|
if (data_type)
|
|
{
|
|
type_idx = typeIdx(data_type);
|
|
if (type_idx == TypeIndex::Nothing)
|
|
throw Exception("T64 codec is not supported for specified type", ErrorCodes::ILLEGAL_SYNTAX_FOR_CODEC_TYPE);
|
|
}
|
|
}
|
|
|
|
UInt8 CompressionCodecT64::getMethodByte() const
|
|
{
|
|
return codecId();
|
|
}
|
|
|
|
void registerCodecT64(CompressionCodecFactory & factory)
|
|
{
|
|
auto reg_func = [&](const ASTPtr & arguments, DataTypePtr type) -> CompressionCodecPtr
|
|
{
|
|
Variant variant = Variant::Byte;
|
|
|
|
if (arguments && !arguments->children.empty())
|
|
{
|
|
if (arguments->children.size() > 1)
|
|
throw Exception("T64 support zero or one parameter, given " + std::to_string(arguments->children.size()),
|
|
ErrorCodes::ILLEGAL_SYNTAX_FOR_CODEC_TYPE);
|
|
|
|
const auto children = arguments->children;
|
|
const auto * literal = children[0]->as<ASTLiteral>();
|
|
if (!literal)
|
|
throw Exception("Wrong modification for T64. Expected: 'bit', 'byte')",
|
|
ErrorCodes::ILLEGAL_CODEC_PARAMETER);
|
|
String name = literal->value.safeGet<String>();
|
|
|
|
if (name == "byte")
|
|
variant = Variant::Byte;
|
|
else if (name == "bit")
|
|
variant = Variant::Bit;
|
|
else
|
|
throw Exception("Wrong modification for T64: " + name, ErrorCodes::ILLEGAL_CODEC_PARAMETER);
|
|
}
|
|
|
|
auto type_idx = typeIdx(type);
|
|
if (type && type_idx == TypeIndex::Nothing)
|
|
throw Exception("T64 codec is not supported for specified type", ErrorCodes::ILLEGAL_SYNTAX_FOR_CODEC_TYPE);
|
|
return std::make_shared<CompressionCodecT64>(type_idx, variant);
|
|
};
|
|
|
|
factory.registerCompressionCodecWithType("T64", codecId(), reg_func);
|
|
}
|
|
}
|