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Refactor ArrayJoin step.

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This commit is contained in:
Nikolai Kochetov 2024-09-05 13:22:45 +00:00
parent 5e8c8084cb
commit 5f5acd3c44
16 changed files with 185 additions and 234 deletions
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3
src/Functions/FunctionStringOrArrayToT.h
View File

@ -27,7 +27,8 @@ class FunctionStringOrArrayToT : public IFunction
{
public:
static constexpr auto name = Name::name;
static FunctionPtr create(ContextPtr)
static FunctionPtr create(ContextPtr) { return createImpl(); }
static FunctionPtr createImpl()
{
return std::make_shared<FunctionStringOrArrayToT>();
}

176
src/Functions/array/arrayResize.cpp
View File

@ -1,4 +1,4 @@
#include <Functions/IFunction.h>
#include <Functions/array/arrayResize.h>
#include <Functions/FunctionFactory.h>
#include <Functions/GatherUtils/GatherUtils.h>
#include <DataTypes/DataTypeArray.h>
@ -21,117 +21,99 @@ namespace ErrorCodes
extern const int ILLEGAL_TYPE_OF_ARGUMENT;
}
class FunctionArrayResize : public IFunction
DataTypePtr FunctionArrayResize::getReturnTypeImpl(const DataTypes & arguments) const
{
public:
static constexpr auto name = "arrayResize";
static FunctionPtr create(ContextPtr) { return std::make_shared<FunctionArrayResize>(); }
const size_t number_of_arguments = arguments.size();
String getName() const override { return name; }
if (number_of_arguments < 2 || number_of_arguments > 3)
throw Exception(ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH,
"Number of arguments for function {} doesn't match: passed {}, should be 2 or 3",
getName(), number_of_arguments);
bool isVariadic() const override { return true; }
size_t getNumberOfArguments() const override { return 0; }
if (arguments[0]->onlyNull())
return arguments[0];
bool isSuitableForShortCircuitArgumentsExecution(const DataTypesWithConstInfo & /*arguments*/) const override { return true; }
const auto * array_type = typeid_cast<const DataTypeArray *>(arguments[0].get());
if (!array_type)
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT,
"First argument for function {} must be an array but it has type {}.",
getName(), arguments[0]->getName());
DataTypePtr getReturnTypeImpl(const DataTypes & arguments) const override
if (WhichDataType(array_type->getNestedType()).isNothing())
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "Function {} cannot resize {}", getName(), array_type->getName());
if (!isInteger(removeNullable(arguments[1])) && !arguments[1]->onlyNull())
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT,
"Argument {} for function {} must be integer but it has type {}.",
toString(1), getName(), arguments[1]->getName());
if (number_of_arguments == 2)
return arguments[0];
else /* if (number_of_arguments == 3) */
return std::make_shared<DataTypeArray>(getLeastSupertype(DataTypes{array_type->getNestedType(), arguments[2]}));
}
ColumnPtr FunctionArrayResize::executeImpl(const ColumnsWithTypeAndName & arguments, const DataTypePtr & return_type, size_t input_rows_count) const
{
if (return_type->onlyNull())
return return_type->createColumnConstWithDefaultValue(input_rows_count);
auto result_column = return_type->createColumn();
auto array_column = arguments[0].column;
auto size_column = arguments[1].column;
if (!arguments[0].type->equals(*return_type))
array_column = castColumn(arguments[0], return_type);
const DataTypePtr & return_nested_type = typeid_cast<const DataTypeArray &>(*return_type).getNestedType();
size_t size = array_column->size();
ColumnPtr appended_column;
if (arguments.size() == 3)
{
const size_t number_of_arguments = arguments.size();
appended_column = arguments[2].column;
if (!arguments[2].type->equals(*return_nested_type))
appended_column = castColumn(arguments[2], return_nested_type);
}
else
appended_column = return_nested_type->createColumnConstWithDefaultValue(size);
if (number_of_arguments < 2 || number_of_arguments > 3)
throw Exception(ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH,
"Number of arguments for function {} doesn't match: passed {}, should be 2 or 3",
getName(), number_of_arguments);
std::unique_ptr<GatherUtils::IArraySource> array_source;
std::unique_ptr<GatherUtils::IValueSource> value_source;
if (arguments[0]->onlyNull())
return arguments[0];
bool is_const = false;
const auto * array_type = typeid_cast<const DataTypeArray *>(arguments[0].get());
if (!array_type)
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT,
"First argument for function {} must be an array but it has type {}.",
getName(), arguments[0]->getName());
if (WhichDataType(array_type->getNestedType()).isNothing())
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "Function {} cannot resize {}", getName(), array_type->getName());
if (!isInteger(removeNullable(arguments[1])) && !arguments[1]->onlyNull())
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT,
"Argument {} for function {} must be integer but it has type {}.",
toString(1), getName(), arguments[1]->getName());
if (number_of_arguments == 2)
return arguments[0];
else /* if (number_of_arguments == 3) */
return std::make_shared<DataTypeArray>(getLeastSupertype(DataTypes{array_type->getNestedType(), arguments[2]}));
if (const auto * const_array_column = typeid_cast<const ColumnConst *>(array_column.get()))
{
is_const = true;
array_column = const_array_column->getDataColumnPtr();
}
ColumnPtr executeImpl(const ColumnsWithTypeAndName & arguments, const DataTypePtr & return_type, size_t input_rows_count) const override
if (const auto * argument_column_array = typeid_cast<const ColumnArray *>(array_column.get()))
array_source = GatherUtils::createArraySource(*argument_column_array, is_const, size);
else
throw Exception(ErrorCodes::LOGICAL_ERROR, "First arguments for function {} must be array.", getName());
bool is_appended_const = false;
if (const auto * const_appended_column = typeid_cast<const ColumnConst *>(appended_column.get()))
{
if (return_type->onlyNull())
return return_type->createColumnConstWithDefaultValue(input_rows_count);
auto result_column = return_type->createColumn();
auto array_column = arguments[0].column;
auto size_column = arguments[1].column;
if (!arguments[0].type->equals(*return_type))
array_column = castColumn(arguments[0], return_type);
const DataTypePtr & return_nested_type = typeid_cast<const DataTypeArray &>(*return_type).getNestedType();
size_t size = array_column->size();
ColumnPtr appended_column;
if (arguments.size() == 3)
{
appended_column = arguments[2].column;
if (!arguments[2].type->equals(*return_nested_type))
appended_column = castColumn(arguments[2], return_nested_type);
}
else
appended_column = return_nested_type->createColumnConstWithDefaultValue(size);
std::unique_ptr<GatherUtils::IArraySource> array_source;
std::unique_ptr<GatherUtils::IValueSource> value_source;
bool is_const = false;
if (const auto * const_array_column = typeid_cast<const ColumnConst *>(array_column.get()))
{
is_const = true;
array_column = const_array_column->getDataColumnPtr();
}
if (const auto * argument_column_array = typeid_cast<const ColumnArray *>(array_column.get()))
array_source = GatherUtils::createArraySource(*argument_column_array, is_const, size);
else
throw Exception(ErrorCodes::LOGICAL_ERROR, "First arguments for function {} must be array.", getName());
bool is_appended_const = false;
if (const auto * const_appended_column = typeid_cast<const ColumnConst *>(appended_column.get()))
{
is_appended_const = true;
appended_column = const_appended_column->getDataColumnPtr();
}
value_source = GatherUtils::createValueSource(*appended_column, is_appended_const, size);
auto sink = GatherUtils::createArraySink(typeid_cast<ColumnArray &>(*result_column), size);
if (isColumnConst(*size_column))
GatherUtils::resizeConstantSize(*array_source, *value_source, *sink, size_column->getInt(0));
else
GatherUtils::resizeDynamicSize(*array_source, *value_source, *sink, *size_column);
return result_column;
is_appended_const = true;
appended_column = const_appended_column->getDataColumnPtr();
}
bool useDefaultImplementationForConstants() const override { return true; }
bool useDefaultImplementationForNulls() const override { return false; }
};
value_source = GatherUtils::createValueSource(*appended_column, is_appended_const, size);
auto sink = GatherUtils::createArraySink(typeid_cast<ColumnArray &>(*result_column), size);
if (isColumnConst(*size_column))
GatherUtils::resizeConstantSize(*array_source, *value_source, *sink, size_column->getInt(0));
else
GatherUtils::resizeDynamicSize(*array_source, *value_source, *sink, *size_column);
return result_column;
}
REGISTER_FUNCTION(ArrayResize)
{

39
src/Functions/array/emptyArrayToSingle.cpp
View File

@ -1,4 +1,4 @@
#include <Functions/IFunction.h>
#include <Functions/array/emptyArrayToSingle.h>
#include <Functions/FunctionFactory.h>
#include <Functions/FunctionHelpers.h>
#include <DataTypes/DataTypeArray.h>
@ -20,35 +20,6 @@ namespace ErrorCodes
extern const int ILLEGAL_TYPE_OF_ARGUMENT;
}
/** emptyArrayToSingle(arr) - replace empty arrays with arrays of one element with a default value.
*/
class FunctionEmptyArrayToSingle : public IFunction
{
public:
static constexpr auto name = "emptyArrayToSingle";
static FunctionPtr create(ContextPtr) { return std::make_shared<FunctionEmptyArrayToSingle>(); }
String getName() const override { return name; }
size_t getNumberOfArguments() const override { return 1; }
bool useDefaultImplementationForConstants() const override { return true; }
bool useDefaultImplementationForLowCardinalityColumns() const override { return false; }
bool isSuitableForShortCircuitArgumentsExecution(const DataTypesWithConstInfo & /*arguments*/) const override { return false; }
DataTypePtr getReturnTypeImpl(const DataTypes & arguments) const override
{
const DataTypeArray * array_type = checkAndGetDataType<DataTypeArray>(arguments[0].get());
if (!array_type)
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "Argument for function {} must be array.", getName());
return arguments[0];
}
ColumnPtr executeImpl(const ColumnsWithTypeAndName & arguments, const DataTypePtr & result_type, size_t input_rows_count) const override;
};
namespace
{
namespace FunctionEmptyArrayToSingleImpl
@ -366,6 +337,14 @@ namespace
}
}
DataTypePtr FunctionEmptyArrayToSingle::getReturnTypeImpl(const DataTypes & arguments) const
{
const DataTypeArray * array_type = checkAndGetDataType<DataTypeArray>(arguments[0].get());
if (!array_type)
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "Argument for function {} must be array.", getName());
return arguments[0];
}
ColumnPtr FunctionEmptyArrayToSingle::executeImpl(const ColumnsWithTypeAndName & arguments, const DataTypePtr & result_type, size_t input_rows_count) const
{

60
src/Functions/array/length.cpp
View File

@ -1,65 +1,7 @@
#include <DataTypes/DataTypeString.h>
#include <Functions/FunctionFactory.h>
#include <Functions/FunctionStringOrArrayToT.h>
#include <Functions/array/length.h>
namespace DB
{
namespace ErrorCodes
{
extern const int ILLEGAL_TYPE_OF_ARGUMENT;
}
/** Calculates the length of a string in bytes.
*/
struct LengthImpl
{
static constexpr auto is_fixed_to_constant = true;
static void vector(const ColumnString::Chars & /*data*/, const ColumnString::Offsets & offsets, PaddedPODArray<UInt64> & res, size_t input_rows_count)
{
for (size_t i = 0; i < input_rows_count; ++i)
res[i] = offsets[i] - 1 - offsets[i - 1];
}
static void vectorFixedToConstant(const ColumnString::Chars & /*data*/, size_t n, UInt64 & res, size_t)
{
res = n;
}
static void vectorFixedToVector(const ColumnString::Chars & /*data*/, size_t /*n*/, PaddedPODArray<UInt64> & /*res*/, size_t)
{
}
static void array(const ColumnString::Offsets & offsets, PaddedPODArray<UInt64> & res, size_t input_rows_count)
{
for (size_t i = 0; i < input_rows_count; ++i)
res[i] = offsets[i] - offsets[i - 1];
}
[[noreturn]] static void uuid(const ColumnUUID::Container &, size_t &, PaddedPODArray<UInt64> &, size_t)
{
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "Cannot apply function length to UUID argument");
}
[[noreturn]] static void ipv6(const ColumnIPv6::Container &, size_t &, PaddedPODArray<UInt64> &, size_t)
{
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "Cannot apply function length to IPv6 argument");
}
[[noreturn]] static void ipv4(const ColumnIPv4::Container &, size_t &, PaddedPODArray<UInt64> &, size_t)
{
throw Exception(ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT, "Cannot apply function length to IPv4 argument");
}
};
struct NameLength
{
static constexpr auto name = "length";
};
using FunctionLength = FunctionStringOrArrayToT<LengthImpl, NameLength, UInt64, false>;
REGISTER_FUNCTION(Length)
{

63
src/Interpreters/ArrayJoinAction.cpp
View File

@ -6,6 +6,9 @@
#include <Columns/ColumnMap.h>
#include <DataTypes/DataTypesNumber.h>
#include <Functions/FunctionFactory.h>
#include <Functions/array/length.h>
#include <Functions/array/arrayResize.h>
#include <Functions/array/emptyArrayToSingle.h>
#include <Interpreters/Context.h>
#include <Interpreters/ArrayJoinAction.h>
@ -59,26 +62,27 @@ ColumnWithTypeAndName convertArrayJoinColumn(const ColumnWithTypeAndName & src_c
return array_col;
}
ArrayJoinAction::ArrayJoinAction(const NameSet & array_joined_columns_, bool array_join_is_left, ContextPtr context)
ArrayJoinAction::ArrayJoinAction(const NameSet & array_joined_columns_, bool is_left_, bool is_unaligned_, size_t max_block_size_)
: columns(array_joined_columns_)
, is_left(array_join_is_left)
, is_unaligned(context->getSettingsRef().enable_unaligned_array_join)
, max_block_size(context->getSettingsRef().max_block_size)
, is_left(is_left_)
, is_unaligned(is_unaligned_)
, max_block_size(max_block_size_)
// , is_unaligned(context->getSettingsRef().enable_unaligned_array_join)
// , max_block_size(context->getSettingsRef().max_block_size)
{
if (columns.empty())
throw Exception(ErrorCodes::LOGICAL_ERROR, "No arrays to join");
if (is_unaligned)
{
function_length = FunctionFactory::instance().get("length", context);
function_greatest = FunctionFactory::instance().get("greatest", context);
function_array_resize = FunctionFactory::instance().get("arrayResize", context);
function_length = std::make_unique<FunctionToOverloadResolverAdaptor>(FunctionLength::createImpl());
function_array_resize = std::make_unique<FunctionToOverloadResolverAdaptor>(FunctionArrayResize::createImpl());
}
else if (is_left)
function_builder = FunctionFactory::instance().get("emptyArrayToSingle", context);
function_builder = std::make_unique<FunctionToOverloadResolverAdaptor>(FunctionEmptyArrayToSingle::createImpl());
}
void ArrayJoinAction::prepare(ColumnsWithTypeAndName & sample) const
void ArrayJoinAction::prepare(const NameSet & columns, ColumnsWithTypeAndName & sample)
{
for (auto & current : sample)
{
@ -103,6 +107,35 @@ ArrayJoinResultIteratorPtr ArrayJoinAction::execute(Block block)
return std::make_unique<ArrayJoinResultIterator>(this, std::move(block));
}
static void updateMaxLength(ColumnUInt64 & max_length, UInt64 length)
{
for (auto & value : max_length.getData())
value = std::max(value, length);
}
static void updateMaxLength(ColumnUInt64 & max_length, const IColumn & length)
{
if (const auto * length_const = typeid_cast<const ColumnConst *>(&length))
{
updateMaxLength(max_length, length_const->getUInt(0));
return;
}
const auto * length_uint64 = typeid_cast<const ColumnUInt64 *>(&length);
if (!length_uint64)
throw Exception(ErrorCodes::LOGICAL_ERROR, "Expected UInt64 for array length, got {}", length.getName());
auto & max_lenght_data = max_length.getData();
const auto & length_data = length_uint64->getData();
size_t num_rows = max_lenght_data.size();
if (num_rows != length_data.size())
throw Exception(
ErrorCodes::LOGICAL_ERROR,
"Different columns sizes in ARRAY JOIN: {} and {}", num_rows, length_data.size());
for (size_t row = 0; row < num_rows; ++row)
max_lenght_data[row] = std::max(max_lenght_data[row], length_data[row]);
}
ArrayJoinResultIterator::ArrayJoinResultIterator(const ArrayJoinAction * array_join_, Block block_)
: array_join(array_join_), block(std::move(block_)), total_rows(block.rows()), current_row(0)
@ -111,7 +144,6 @@ ArrayJoinResultIterator::ArrayJoinResultIterator(const ArrayJoinAction * array_j
bool is_unaligned = array_join->is_unaligned;
bool is_left = array_join->is_left;
const auto & function_length = array_join->function_length;
const auto & function_greatest = array_join->function_greatest;
const auto & function_array_resize = array_join->function_array_resize;
const auto & function_builder = array_join->function_builder;
@ -125,11 +157,7 @@ ArrayJoinResultIterator::ArrayJoinResultIterator(const ArrayJoinAction * array_j
/// Resize all array joined columns to the longest one, (at least 1 if LEFT ARRAY JOIN), padded with default values.
auto rows = block.rows();
auto uint64 = std::make_shared<DataTypeUInt64>();
ColumnWithTypeAndName column_of_max_length{{}, uint64, {}};
if (is_left)
column_of_max_length = ColumnWithTypeAndName(uint64->createColumnConst(rows, 1u), uint64, {});
else
column_of_max_length = ColumnWithTypeAndName(uint64->createColumnConst(rows, 0u), uint64, {});
auto max_length = ColumnUInt64::create(rows, (is_left ? 1u : 0u));
for (const auto & name : columns)
{
@ -138,11 +166,10 @@ ArrayJoinResultIterator::ArrayJoinResultIterator(const ArrayJoinAction * array_j
ColumnWithTypeAndName array_col = convertArrayJoinColumn(src_col);
ColumnsWithTypeAndName tmp_block{array_col}; //, {{}, uint64, {}}};
auto len_col = function_length->build(tmp_block)->execute(tmp_block, uint64, rows);
ColumnsWithTypeAndName tmp_block2{column_of_max_length, {len_col, uint64, {}}};
column_of_max_length.column = function_greatest->build(tmp_block2)->execute(tmp_block2, uint64, rows);
updateMaxLength(*max_length, *len_col);
}
ColumnWithTypeAndName column_of_max_length{std::move(max_length), uint64, {}};
for (const auto & name : columns)
{
auto & src_col = block.getByName(name);

6
src/Interpreters/ArrayJoinAction.h
View File

@ -33,14 +33,14 @@ public:
/// For unaligned [LEFT] ARRAY JOIN
FunctionOverloadResolverPtr function_length;
FunctionOverloadResolverPtr function_greatest;
//FunctionOverloadResolverPtr function_greatest;
FunctionOverloadResolverPtr function_array_resize;
/// For LEFT ARRAY JOIN.
FunctionOverloadResolverPtr function_builder;
ArrayJoinAction(const NameSet & array_joined_columns_, bool array_join_is_left, ContextPtr context);
void prepare(ColumnsWithTypeAndName & sample) const;
ArrayJoinAction(const NameSet & array_joined_columns_, bool is_left_, bool is_unaligned_, size_t max_block_size_);
static void prepare(const NameSet & columns, ColumnsWithTypeAndName & sample);
ArrayJoinResultIteratorPtr execute(Block block);
};

5
src/Interpreters/ExpressionAnalyzer.cpp
View File

@ -215,7 +215,7 @@ NamesAndTypesList ExpressionAnalyzer::getColumnsAfterArrayJoin(ActionsDAG & acti
auto array_join = addMultipleArrayJoinAction(actions, is_array_join_left);
auto sample_columns = actions.getResultColumns();
array_join->prepare(sample_columns);
ArrayJoinAction::prepare(array_join->columns, sample_columns);
actions = ActionsDAG(sample_columns);
NamesAndTypesList new_columns_after_array_join;
@ -905,7 +905,8 @@ ArrayJoinActionPtr ExpressionAnalyzer::addMultipleArrayJoinAction(ActionsDAG & a
result_columns.insert(result_source.first);
}
return std::make_shared<ArrayJoinAction>(result_columns, array_join_is_left, getContext());
const auto & query_settings = getContext()->getSettingsRef();
return std::make_shared<ArrayJoinAction>(result_columns, array_join_is_left, query_settings.enable_unaligned_array_join, query_settings.max_block_size);
}
ArrayJoinActionPtr SelectQueryExpressionAnalyzer::appendArrayJoin(ExpressionActionsChain & chain, ActionsAndProjectInputsFlagPtr & before_array_join, bool only_types)

8
src/Interpreters/InterpreterSelectQuery.cpp
View File

@ -86,6 +86,7 @@
#include <Core/Settings.h>
#include <Core/ServerSettings.h>
#include <Interpreters/Aggregator.h>
#include <Interpreters/ArrayJoinAction.h>
#include <Interpreters/HashTablesStatistics.h>
#include <Interpreters/IJoin.h>
#include <QueryPipeline/SizeLimits.h>
@ -1676,7 +1677,12 @@ void InterpreterSelectQuery::executeImpl(QueryPlan & query_plan, std::optional<P
if (expressions.array_join)
{
QueryPlanStepPtr array_join_step
= std::make_unique<ArrayJoinStep>(query_plan.getCurrentDataStream(), expressions.array_join);
= std::make_unique<ArrayJoinStep>(
query_plan.getCurrentDataStream(),
expressions.array_join->columns,
expressions.array_join->is_left,
expressions.array_join->is_unaligned,
expressions.array_join->max_block_size);
array_join_step->setStepDescription("ARRAY JOIN");
query_plan.addStep(std::move(array_join_step));

10
src/Planner/PlannerJoinTree.cpp
View File

@ -1707,8 +1707,14 @@ JoinTreeQueryPlan buildQueryPlanForArrayJoinNode(const QueryTreeNodePtr & array_
drop_unused_columns_before_array_join_transform_step->setStepDescription("DROP unused columns before ARRAY JOIN");
plan.addStep(std::move(drop_unused_columns_before_array_join_transform_step));
auto array_join_action = std::make_shared<ArrayJoinAction>(array_join_column_names, array_join_node.isLeft(), planner_context->getQueryContext());
auto array_join_step = std::make_unique<ArrayJoinStep>(plan.getCurrentDataStream(), std::move(array_join_action));
const auto & settings = planner_context->getQueryContext()->getSettingsRef();
auto array_join_step = std::make_unique<ArrayJoinStep>(
plan.getCurrentDataStream(),
std::move(array_join_column_names),
array_join_node.isLeft(),
settings.enable_unaligned_array_join,
settings.max_block_size);
array_join_step->setStepDescription("ARRAY JOIN");
plan.addStep(std::move(array_join_step));

20
src/Processors/QueryPlan/ArrayJoinStep.cpp
View File

@ -24,23 +24,27 @@ static ITransformingStep::Traits getTraits()
};
}
ArrayJoinStep::ArrayJoinStep(const DataStream & input_stream_, ArrayJoinActionPtr array_join_)
ArrayJoinStep::ArrayJoinStep(const DataStream & input_stream_, NameSet columns_, bool is_left_, bool is_unaligned_, size_t max_block_size_)
: ITransformingStep(
input_stream_,
ArrayJoinTransform::transformHeader(input_stream_.header, array_join_),
ArrayJoinTransform::transformHeader(input_stream_.header, columns_),
getTraits())
, array_join(std::move(array_join_))
, columns(std::move(columns_))
, is_left(is_left_)
, is_unaligned(is_unaligned_)
, max_block_size(max_block_size_)
{
}
void ArrayJoinStep::updateOutputStream()
{
output_stream = createOutputStream(
input_streams.front(), ArrayJoinTransform::transformHeader(input_streams.front().header, array_join), getDataStreamTraits());
input_streams.front(), ArrayJoinTransform::transformHeader(input_streams.front().header, columns), getDataStreamTraits());
}
void ArrayJoinStep::transformPipeline(QueryPipelineBuilder & pipeline, const BuildQueryPipelineSettings &)
{
auto array_join = std::make_shared<ArrayJoinAction>(columns, is_left, is_unaligned, max_block_size);
pipeline.addSimpleTransform([&](const Block & header, QueryPipelineBuilder::StreamType stream_type)
{
bool on_totals = stream_type == QueryPipelineBuilder::StreamType::Totals;
@ -53,8 +57,8 @@ void ArrayJoinStep::describeActions(FormatSettings & settings) const
String prefix(settings.offset, ' ');
bool first = true;
settings.out << prefix << (array_join->is_left ? "LEFT " : "") << "ARRAY JOIN ";
for (const auto & column : array_join->columns)
settings.out << prefix << (is_left ? "LEFT " : "") << "ARRAY JOIN ";
for (const auto & column : columns)
{
if (!first)
settings.out << ", ";
@ -68,10 +72,10 @@ void ArrayJoinStep::describeActions(FormatSettings & settings) const
void ArrayJoinStep::describeActions(JSONBuilder::JSONMap & map) const
{
map.add("Left", array_join->is_left);
map.add("Left", is_left);
auto columns_array = std::make_unique<JSONBuilder::JSONArray>();
for (const auto & column : array_join->columns)
for (const auto & column : columns)
columns_array->add(column);
map.add("Columns", std::move(columns_array));

10
src/Processors/QueryPlan/ArrayJoinStep.h
View File

@ -10,7 +10,7 @@ using ArrayJoinActionPtr = std::shared_ptr<ArrayJoinAction>;
class ArrayJoinStep : public ITransformingStep
{
public:
explicit ArrayJoinStep(const DataStream & input_stream_, ArrayJoinActionPtr array_join_);
ArrayJoinStep(const DataStream & input_stream_, NameSet columns_, bool is_left_, bool is_unaligned_, size_t max_block_size_);
String getName() const override { return "ArrayJoin"; }
void transformPipeline(QueryPipelineBuilder & pipeline, const BuildQueryPipelineSettings &) override;
@ -18,12 +18,16 @@ public:
void describeActions(JSONBuilder::JSONMap & map) const override;
void describeActions(FormatSettings & settings) const override;
const ArrayJoinActionPtr & arrayJoin() const { return array_join; }
const NameSet & getColumns() const { return columns; }
bool isLeft() const { return is_left; }
private:
void updateOutputStream() override;
ArrayJoinActionPtr array_join;
NameSet columns;
bool is_left = false;
bool is_unaligned = false;
size_t max_block_size = DEFAULT_BLOCK_SIZE;
};
}

3
src/Processors/QueryPlan/Optimizations/filterPushDown.cpp
View File

@ -520,8 +520,7 @@ size_t tryPushDownFilter(QueryPlan::Node * parent_node, QueryPlan::Nodes & nodes
if (auto * array_join = typeid_cast<ArrayJoinStep *>(child.get()))
{
const auto & array_join_actions = array_join->arrayJoin();
const auto & keys = array_join_actions->columns;
const auto & keys = array_join->getColumns();
const auto & array_join_header = array_join->getInputStreams().front().header;
Names allowed_inputs;

4
src/Processors/QueryPlan/Optimizations/liftUpArrayJoin.cpp
View File

@ -24,11 +24,11 @@ size_t tryLiftUpArrayJoin(QueryPlan::Node * parent_node, QueryPlan::Nodes & node
if (!(expression_step || filter_step) || !array_join_step)
return 0;
const auto & array_join = array_join_step->arrayJoin();
const auto & array_join_columns = array_join_step->getColumns();
const auto & expression = expression_step ? expression_step->getExpression()
: filter_step->getExpression();
auto split_actions = expression.splitActionsBeforeArrayJoin(array_join->columns);
auto split_actions = expression.splitActionsBeforeArrayJoin(array_join_columns);
/// No actions can be moved before ARRAY JOIN.
if (split_actions.first.trivial())

4
src/Processors/QueryPlan/Optimizations/optimizeReadInOrder.cpp
View File

@ -230,10 +230,10 @@ void buildSortingDAG(QueryPlan::Node & node, std::optional<ActionsDAG> & dag, Fi
{
/// Should ignore limit because ARRAY JOIN can reduce the number of rows in case of empty array.
/// But in case of LEFT ARRAY JOIN the result number of rows is always bigger.
if (!array_join->arrayJoin()->is_left)
if (!array_join->isLeft())
limit = 0;
const auto & array_joined_columns = array_join->arrayJoin()->columns;
const auto & array_joined_columns = array_join->getColumns();
if (dag)
{

6
src/Processors/Transforms/ArrayJoinTransform.cpp
View File

@ -10,10 +10,10 @@ namespace ErrorCodes
extern const int LOGICAL_ERROR;
}
Block ArrayJoinTransform::transformHeader(Block header, const ArrayJoinActionPtr & array_join)
Block ArrayJoinTransform::transformHeader(Block header, const NameSet & array_join_columns)
{
auto columns = header.getColumnsWithTypeAndName();
array_join->prepare(columns);
ArrayJoinAction::prepare(array_join_columns, columns);
Block res{std::move(columns)};
res.setColumns(res.mutateColumns());
return res;
@ -23,7 +23,7 @@ ArrayJoinTransform::ArrayJoinTransform(
const Block & header_,
ArrayJoinActionPtr array_join_,
bool /*on_totals_*/)
: IInflatingTransform(header_, transformHeader(header_, array_join_))
: IInflatingTransform(header_, transformHeader(header_, array_join_->columns))
, array_join(std::move(array_join_))
{
/// TODO

2
src/Processors/Transforms/ArrayJoinTransform.h
View File

@ -22,7 +22,7 @@ public:
String getName() const override { return "ArrayJoinTransform"; }
static Block transformHeader(Block header, const ArrayJoinActionPtr & array_join);
static Block transformHeader(Block header, const NameSet & array_join_columns);
protected:
void consume(Chunk chunk) override;