void DataTypeTuple::deserializeBinary(IColumn & column, ReadBuffer & istr) const
{
deserializeSafe(elems, column, istr, [&]
{
for (const auto & i : ext::range(0, ext::size(elems)))
elems[i]->deserializeBinary(extractElementColumn(column, i), istr);
});
}
void DataTypeTuple::serializeTextCSV(const IColumn & column, size_t row_num, WriteBuffer & ostr) const
{
for (const auto i : ext::range(0, ext::size(elems)))
{
if (i != 0)
writeChar(',', ostr);
elems[i]->serializeTextCSV(extractElementColumn(column, i), row_num, ostr);
}
}
void DataTypeTuple::serializeTextXML(const IColumn & column, size_t row_num, WriteBuffer & ostr) const
{
writeCString("<tuple>", ostr);
for (const auto i : ext::range(0, ext::size(elems)))
{
writeCString("<elem>", ostr);
elems[i]->serializeTextXML(extractElementColumn(column, i), row_num, ostr);
writeCString("</elem>", ostr);
}
writeCString("</tuple>", ostr);
}
void DataTypeTuple::serializeTextJSON(const IColumn & column, size_t row_num, WriteBuffer & ostr, bool force_quoting_64bit_integers) const
{
writeChar('[', ostr);
for (const auto i : ext::range(0, ext::size(elems)))
{
if (i != 0)
writeChar(',', ostr);
elems[i]->serializeTextJSON(extractElementColumn(column, i), row_num, ostr, force_quoting_64bit_integers);
}
writeChar(']', ostr);
}
static void deserializeSafe(const DataTypes & elems, IColumn & column, ReadBuffer & istr, F && impl)
{
/// We use the assumption that tuples of zero size do not exist.
size_t old_size = extractElementColumn(column, 0).size();
try
{
impl();
}
catch (...)
{
for (const auto & i : ext::range(0, ext::size(elems)))
{
auto & element_column = extractElementColumn(column, i);
if (element_column.size() > old_size)
element_column.popBack(1);
}
throw;
}
}
static void deserializeSafe(const DataTypes & elems, IColumn & column, ReadBuffer & istr, F && impl)
{
/// Используем допущение, что кортежей нулевого размера не бывает.
size_t old_size = extractElementColumn(column, 0).size();
try
{
impl();
}
catch (...)
{
for (const auto & i : ext::range(0, ext::size(elems)))
{
auto & element_column = extractElementColumn(column, i);
if (element_column.size() > old_size)
element_column.popBack(1);
}
throw;
}
}
void DataTypeTuple::deserializeTextCSV(IColumn & column, ReadBuffer & istr, const char delimiter) const
{
deserializeSafe(elems, column, istr, [&]
{
const size_t size = elems.size();
for (const auto i : ext::range(0, size))
{
if (i != 0)
{
skipWhitespaceIfAny(istr);
assertChar(delimiter, istr);
skipWhitespaceIfAny(istr);
}
elems[i]->deserializeTextCSV(extractElementColumn(column, i), istr, delimiter);
}
});
}
void DataTypeTuple::deserializeTextJSON(IColumn & column, ReadBuffer & istr) const
{
const size_t size = elems.size();
assertChar('[', istr);
deserializeSafe(elems, column, istr, [&]
{
for (const auto i : ext::range(0, size))
{
skipWhitespaceIfAny(istr);
if (i != 0)
assertChar(',', istr);
elems[i]->deserializeTextJSON(extractElementColumn(column, i), istr);
}
});
skipWhitespaceIfAny(istr);
assertChar(']', istr);
}
void DataTypeTuple::serializeBinary(const IColumn & column, size_t row_num, WriteBuffer & ostr) const
{
for (const auto & idx_elem : ext::enumerate(elems))
idx_elem.second->serializeBinary(extractElementColumn(column, idx_elem.first), row_num, ostr);
}
