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#pragma once
#include <Core/SortDescription.h>
#include <Interpreters/Aggregator.h>
#include <Processors/ISimpleTransform.h>
#include <Processors/Transforms/AggregatingTransform.h>
#include <Processors/Transforms/finalizeChunk.h>
namespace DB
{
struct InputOrderInfo;
using InputOrderInfoPtr = std::shared_ptr<const InputOrderInfo>;
struct ChunkInfoWithAllocatedBytes : public ChunkInfo
{
explicit ChunkInfoWithAllocatedBytes(Int64 allocated_bytes_)
: allocated_bytes(allocated_bytes_) {}
Int64 allocated_bytes;
};
class AggregatingInOrderTransform : public IProcessor
{
public:
AggregatingInOrderTransform(Block header, AggregatingTransformParamsPtr params,
const SortDescription & sort_description_for_merging,
const SortDescription & group_by_description_,
size_t max_block_size_, size_t max_block_bytes_,
ManyAggregatedDataPtr many_data, size_t current_variant);
AggregatingInOrderTransform(Block header, AggregatingTransformParamsPtr params,
const SortDescription & sort_description_for_merging,
const SortDescription & group_by_description_,
size_t max_block_size_, size_t max_block_bytes_);
~AggregatingInOrderTransform() override;
String getName() const override { return "AggregatingInOrderTransform"; }
Status prepare() override;
void work() override;
void consume(Chunk chunk);
private:
void generate();
void finalizeCurrentChunk(Chunk chunk, size_t key_end);
size_t max_block_size;
size_t max_block_bytes;
size_t cur_block_size = 0;
size_t cur_block_bytes = 0;
MutableColumns res_key_columns;
MutableColumns res_aggregate_columns;
AggregatingTransformParamsPtr params;
ColumnsMask aggregates_mask;
/// For sortBlock()
SortDescription sort_description;
SortDescriptionWithPositions group_by_description;
bool group_by_key = false;
Block group_by_block;
ColumnRawPtrs key_columns_raw;
Aggregator::AggregateColumns aggregate_columns;
ManyAggregatedDataPtr many_data;
AggregatedDataVariants & variants;
UInt64 src_rows = 0;
UInt64 src_bytes = 0;
UInt64 res_rows = 0;
bool need_generate = false;
bool block_end_reached = false;
bool is_consume_started = false;
bool is_consume_finished = false;
Block res_header;
Chunk current_chunk;
Chunk to_push_chunk;
Poco::Logger * log = &Poco::Logger::get("AggregatingInOrderTransform");
};
class FinalizeAggregatedTransform : public ISimpleTransform
{
public:
FinalizeAggregatedTransform(Block header, AggregatingTransformParamsPtr params_);
void transform(Chunk & chunk) override;
String getName() const override { return "FinalizeAggregatedTransform"; }
private:
AggregatingTransformParamsPtr params;
ColumnsMask aggregates_mask;
};
}
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