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Miscellaneous [#METR-2944].

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This commit is contained in:
Alexey Milovidov 2016-11-20 08:48:07 +03:00
parent 312ec5f817
commit 7c53fd5867
1 changed files with 33 additions and 27 deletions
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60
dbms/include/DB/Functions/FunctionsString.h
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@ -1212,38 +1212,44 @@ private:
{
for (auto & instr : instrs)
{
if (InstructionType::COPY_STRING == instr.first)
switch (instr.first)
{
auto & in_offset = instr.second.second;
const auto col = static_cast<const ColumnString *>(instr.second.first);
const auto offset = col->getOffsets()[row];
const auto length = offset - in_offset - 1;
case InstructionType::COPY_STRING:
{
auto & in_offset = instr.second.second;
const auto col = static_cast<const ColumnString *>(instr.second.first);
const auto offset = col->getOffsets()[row];
const auto length = offset - in_offset - 1;
memcpySmallAllowReadWriteOverflow15(&out_data[out_offset], &col->getChars()[in_offset], length);
out_offset += length;
in_offset = offset;
}
else if (InstructionType::COPY_FIXED_STRING == instr.first)
{
auto & in_offset = instr.second.second;
const auto col = static_cast<const ColumnFixedString *>(instr.second.first);
const auto length = col->getN();
memcpySmallAllowReadWriteOverflow15(&out_data[out_offset], &col->getChars()[in_offset], length);
out_offset += length;
in_offset = offset;
break;
}
case InstructionType::COPY_FIXED_STRING:
{
auto & in_offset = instr.second.second;
const auto col = static_cast<const ColumnFixedString *>(instr.second.first);
const auto length = col->getN();
memcpySmallAllowReadWriteOverflow15(&out_data[out_offset], &col->getChars()[in_offset], length);
out_offset += length;
in_offset += length;
}
else if (InstructionType::COPY_CONST_STRING == instr.first)
{
const auto col = static_cast<const ColumnConst<String> *>(instr.second.first);
const auto & data = col->getData();
const auto length = data.size();
memcpySmallAllowReadWriteOverflow15(&out_data[out_offset], &col->getChars()[in_offset], length);
out_offset += length;
in_offset += length;
break;
}
case InstructionType::COPY_CONST_STRING:
{
const auto col = static_cast<const ColumnConst<String> *>(instr.second.first);
const auto & data = col->getData();
const auto length = data.size();
memcpy(&out_data[out_offset], data.data(), length);
out_offset += length;
memcpy(&out_data[out_offset], data.data(), length);
out_offset += length;
break;
}
default:
throw Exception("Unknown InstructionType during execution of function 'concat'", ErrorCodes::LOGICAL_ERROR);
}
else
throw Exception("Unknown InstructionType during execution of function 'concat'", ErrorCodes::LOGICAL_ERROR);
}
out_data[out_offset] = '\0';