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#pragma once
#include <Core/Block.h>
#include <Processors/Formats/IRowInputFormat.h>
#include <IO/ReadBuffer.h>
#include <limits>
namespace DB
{
class RowInputFormatWithDiagnosticInfo : public IRowInputFormat
{
public:
RowInputFormatWithDiagnosticInfo(const Block & header_, ReadBuffer & in_, const Params & params_);
std::pair<String, String> getDiagnosticAndRawDataImpl(bool is_errors_record);
String getDiagnosticInfo() override;
std::pair<String, String> getDiagnosticAndRawData() override;
void resetParser() override;
protected:
void updateDiagnosticInfo();
bool deserializeFieldAndPrintDiagnosticInfo(const String & col_name, const DataTypePtr & type, IColumn & column,
WriteBuffer & out, size_t file_column);
virtual bool parseRowAndPrintDiagnosticInfo(MutableColumns & columns, WriteBuffer & out) = 0;
virtual void tryDeserializeField(const DataTypePtr & type, IColumn & column, size_t file_column) = 0;
virtual bool isGarbageAfterField(size_t after_input_pos_idx, ReadBuffer::Position pos) = 0;
/// For convenient diagnostics in case of an error.
size_t row_num = 0;
private:
/// How many bytes were read, not counting those still in the buffer.
size_t bytes_read_at_start_of_buffer_on_current_row = 0;
size_t bytes_read_at_start_of_buffer_on_prev_row = 0;
size_t offset_of_current_row = std::numeric_limits<size_t>::max();
size_t offset_of_prev_row = std::numeric_limits<size_t>::max();
/// For alignment of diagnostic info.
size_t max_length_of_column_name = 0;
size_t max_length_of_data_type_name = 0;
};
}
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