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32 lines
697 B
C++
32 lines
697 B
C++
#pragma once
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#include <DataStreams/IBlockInputStream.h>
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#include <DataStreams/SquashingTransform.h>
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namespace DB
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{
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/** Merging consecutive blocks of stream to specified minimum size.
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*/
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class SquashingBlockInputStream : public IBlockInputStream
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{
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public:
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SquashingBlockInputStream(const BlockInputStreamPtr & src, size_t min_block_size_rows, size_t min_block_size_bytes,
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bool reserve_memory = false);
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String getName() const override { return "Squashing"; }
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Block getHeader() const override { return header; }
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protected:
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Block readImpl() override;
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private:
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Block header;
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SquashingTransform transform;
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bool all_read = false;
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};
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}
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