bool CSVRowInputStream::read(MutableColumns & columns, RowReadExtension & ext)
{
if (istr.eof())
return false;
updateDiagnosticInfo();
String tmp;
for (size_t input_position = 0; input_position < column_indexes_for_input_fields.size(); ++input_position)
{
const auto & column_index = column_indexes_for_input_fields[input_position];
if (column_index)
{
skipWhitespacesAndTabs(istr);
data_types[*column_index]->deserializeAsTextCSV(*columns[*column_index], istr, format_settings);
skipWhitespacesAndTabs(istr);
}
else
{
readCSVString(tmp, istr, format_settings.csv);
}
skipDelimiter(istr, format_settings.csv.delimiter, input_position + 1 == column_indexes_for_input_fields.size());
}
fillUnreadColumnsWithDefaults(columns, ext);
return true;
}
bool TabSeparatedRowInputStream::read(Block & block)
{
updateDiagnosticInfo();
size_t size = data_types.size();
try
{
if (istr.eof())
return false;
for (size_t i = 0; i < size; ++i)
{
data_types[i].get()->deserializeTextEscaped(*block.unsafeGetByPosition(i).column.get(), istr);
/// пропускаем разделители
if (i + 1 == size)
{
if (!istr.eof())
{
if (unlikely(row_num == 1))
checkForCarriageReturn(istr);
assertChar('\n', istr);
}
}
else
assertChar('\t', istr);
}
}
catch (Exception & e)
{
String verbose_diagnostic;
{
WriteBufferFromString diagnostic_out(verbose_diagnostic);
printDiagnosticInfo(block, diagnostic_out);
}
e.addMessage("\n" + verbose_diagnostic);
throw;
}
return true;
}