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#include <Processors/Chunk.h>
#include <IO/WriteHelpers.h>
#include <IO/Operators.h>
#include <Columns/ColumnSparse.h>
#include <Columns/ColumnConst.h>
#include <DataTypes/DataTypeLowCardinality.h>
namespace DB
{
namespace ErrorCodes
{
extern const int LOGICAL_ERROR;
extern const int POSITION_OUT_OF_BOUND;
}
Chunk::Chunk(DB::Columns columns_, UInt64 num_rows_) : columns(std::move(columns_)), num_rows(num_rows_)
{
checkNumRowsIsConsistent();
}
Chunk::Chunk(Columns columns_, UInt64 num_rows_, ChunkInfoPtr chunk_info_)
: columns(std::move(columns_)), num_rows(num_rows_), chunk_info(std::move(chunk_info_))
{
checkNumRowsIsConsistent();
}
static Columns unmuteColumns(MutableColumns && mutable_columns)
{
Columns columns;
columns.reserve(mutable_columns.size());
for (auto & col : mutable_columns)
columns.emplace_back(std::move(col));
return columns;
}
Chunk::Chunk(MutableColumns columns_, UInt64 num_rows_)
: columns(unmuteColumns(std::move(columns_))), num_rows(num_rows_)
{
checkNumRowsIsConsistent();
}
Chunk::Chunk(MutableColumns columns_, UInt64 num_rows_, ChunkInfoPtr chunk_info_)
: columns(unmuteColumns(std::move(columns_))), num_rows(num_rows_), chunk_info(std::move(chunk_info_))
{
checkNumRowsIsConsistent();
}
Chunk Chunk::clone() const
{
return Chunk(getColumns(), getNumRows(), chunk_info);
}
void Chunk::setColumns(Columns columns_, UInt64 num_rows_)
{
columns = std::move(columns_);
num_rows = num_rows_;
checkNumRowsIsConsistent();
}
void Chunk::setColumns(MutableColumns columns_, UInt64 num_rows_)
{
columns = unmuteColumns(std::move(columns_));
num_rows = num_rows_;
checkNumRowsIsConsistent();
}
void Chunk::checkNumRowsIsConsistent()
{
for (size_t i = 0; i < columns.size(); ++i)
{
auto & column = columns[i];
if (column->size() != num_rows)
throw Exception(ErrorCodes::LOGICAL_ERROR, "Invalid number of rows in Chunk column {}: expected {}, got {}",
column->getName()+ " position " + toString(i), toString(num_rows), toString(column->size()));
}
}
MutableColumns Chunk::mutateColumns()
{
size_t num_columns = columns.size();
MutableColumns mutable_columns(num_columns);
for (size_t i = 0; i < num_columns; ++i)
mutable_columns[i] = IColumn::mutate(std::move(columns[i]));
columns.clear();
num_rows = 0;
return mutable_columns;
}
MutableColumns Chunk::cloneEmptyColumns() const
{
size_t num_columns = columns.size();
MutableColumns mutable_columns(num_columns);
for (size_t i = 0; i < num_columns; ++i)
mutable_columns[i] = columns[i]->cloneEmpty();
return mutable_columns;
}
Columns Chunk::detachColumns()
{
num_rows = 0;
return std::move(columns);
}
void Chunk::addColumn(ColumnPtr column)
{
if (empty())
num_rows = column->size();
else if (column->size() != num_rows)
throw Exception(ErrorCodes::LOGICAL_ERROR, "Invalid number of rows in Chunk column {}, got {}",
column->getName()+ ": expected " + toString(num_rows), toString(column->size()));
columns.emplace_back(std::move(column));
}
void Chunk::addColumn(size_t position, ColumnPtr column)
{
if (position >= columns.size())
throw Exception(ErrorCodes::POSITION_OUT_OF_BOUND,
"Position {} out of bound in Chunk::addColumn(), max position = {}",
position, columns.size() - 1);
if (empty())
num_rows = column->size();
else if (column->size() != num_rows)
throw Exception(ErrorCodes::LOGICAL_ERROR,
"Invalid number of rows in Chunk column {}: expected {}, got {}",
column->getName(), num_rows, column->size());
columns.emplace(columns.begin() + position, std::move(column));
}
void Chunk::erase(size_t position)
{
if (columns.empty())
throw Exception(ErrorCodes::POSITION_OUT_OF_BOUND, "Chunk is empty");
if (position >= columns.size())
throw Exception(ErrorCodes::POSITION_OUT_OF_BOUND, "Position {} out of bound in Chunk::erase(), max position = {}",
toString(position), toString(columns.size() - 1));
columns.erase(columns.begin() + position);
}
UInt64 Chunk::bytes() const
{
UInt64 res = 0;
for (const auto & column : columns)
res += column->byteSize();
return res;
}
UInt64 Chunk::allocatedBytes() const
{
UInt64 res = 0;
for (const auto & column : columns)
res += column->allocatedBytes();
return res;
}
std::string Chunk::dumpStructure() const
{
WriteBufferFromOwnString out;
for (const auto & column : columns)
out << ' ' << column->dumpStructure();
return out.str();
}
void Chunk::append(const Chunk & chunk)
{
append(chunk, 0, chunk.getNumRows());
}
void Chunk::append(const Chunk & chunk, size_t from, size_t length)
{
MutableColumns mutable_columns = mutateColumns();
for (size_t position = 0; position < mutable_columns.size(); ++position)
{
auto column = chunk.getColumns()[position];
mutable_columns[position]->insertRangeFrom(*column, from, length);
}
size_t rows = mutable_columns[0]->size();
setColumns(std::move(mutable_columns), rows);
}
void ChunkMissingValues::setBit(size_t column_idx, size_t row_idx)
{
RowsBitMask & mask = rows_mask_by_column_id[column_idx];
mask.resize(row_idx + 1);
mask[row_idx] = true;
}
const ChunkMissingValues::RowsBitMask & ChunkMissingValues::getDefaultsBitmask(size_t column_idx) const
{
static RowsBitMask none;
auto it = rows_mask_by_column_id.find(column_idx);
if (it != rows_mask_by_column_id.end())
return it->second;
return none;
}
void convertToFullIfConst(Chunk & chunk)
{
size_t num_rows = chunk.getNumRows();
auto columns = chunk.detachColumns();
for (auto & column : columns)
column = column->convertToFullColumnIfConst();
chunk.setColumns(std::move(columns), num_rows);
}
void convertToFullIfSparse(Chunk & chunk)
{
size_t num_rows = chunk.getNumRows();
auto columns = chunk.detachColumns();
for (auto & column : columns)
column = recursiveRemoveSparse(column);
chunk.setColumns(std::move(columns), num_rows);
}
Chunk cloneConstWithDefault(const Chunk & chunk, size_t num_rows)
{
auto columns = chunk.cloneEmptyColumns();
for (auto & column : columns)
{
column->insertDefault();
column = ColumnConst::create(std::move(column), num_rows);
}
return Chunk(std::move(columns), num_rows);
}
}
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