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68 lines
1.9 KiB
C++
68 lines
1.9 KiB
C++
#pragma once
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#include <Common/logger_useful.h>
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#include <Core/Block.h>
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#include <Interpreters/IJoin.h>
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#include <Interpreters/TableJoin.h>
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#include <QueryPipeline/SizeLimits.h>
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#include <Interpreters/IKeyValueEntity.h>
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#include <Storages/IStorage_fwd.h>
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namespace DB
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{
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class NotJoinedBlocks;
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class DirectKeyValueJoin : public IJoin
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{
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public:
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DirectKeyValueJoin(
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std::shared_ptr<TableJoin> table_join_,
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const Block & right_sample_block_,
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std::shared_ptr<const IKeyValueEntity> storage_);
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DirectKeyValueJoin(
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std::shared_ptr<TableJoin> table_join_,
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const Block & right_sample_block_,
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std::shared_ptr<const IKeyValueEntity> storage_,
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const Block & right_sample_block_with_storage_column_names_);
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virtual const TableJoin & getTableJoin() const override { return *table_join; }
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virtual bool addJoinedBlock(const Block &, bool) override;
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virtual void checkTypesOfKeys(const Block &) const override;
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/// Join the block with data from left hand of JOIN to the right hand data (that was previously built by calls to addJoinedBlock).
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/// Could be called from different threads in parallel.
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virtual void joinBlock(Block & block, std::shared_ptr<ExtraBlock> &) override;
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virtual size_t getTotalRowCount() const override { return 0; }
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virtual size_t getTotalByteCount() const override { return 0; }
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virtual bool alwaysReturnsEmptySet() const override { return false; }
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virtual bool isFilled() const override { return true; }
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virtual IBlocksStreamPtr
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getNonJoinedBlocks(const Block &, const Block &, UInt64) const override
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{
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return nullptr;
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}
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private:
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std::shared_ptr<TableJoin> table_join;
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std::shared_ptr<const IKeyValueEntity> storage;
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Block right_sample_block;
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Block right_sample_block_with_storage_column_names;
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Block sample_block_with_columns_to_add;
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Poco::Logger * log;
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};
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}
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