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97f2a2213e
* Move some code outside dbms/src folder * Fix paths
35 lines
1.4 KiB
C++
35 lines
1.4 KiB
C++
#pragma once
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#include <DataStreams/materializeBlock.h>
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#include <DataStreams/IBlockOutputStream.h>
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namespace DB
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{
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/** Converts columns-constants to full columns ("materializes" them).
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*/
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class MaterializingBlockOutputStream : public IBlockOutputStream
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{
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public:
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MaterializingBlockOutputStream(const BlockOutputStreamPtr & output_, const Block & header_)
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: output{output_}, header(header_) {}
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Block getHeader() const override { return header; }
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void write(const Block & block) override { output->write(materializeBlock(block)); }
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void flush() override { output->flush(); }
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void writePrefix() override { output->writePrefix(); }
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void writeSuffix() override { output->writeSuffix(); }
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void setRowsBeforeLimit(size_t rows_before_limit) override { output->setRowsBeforeLimit(rows_before_limit); }
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void setTotals(const Block & totals) override { output->setTotals(materializeBlock(totals)); }
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void setExtremes(const Block & extremes) override { output->setExtremes(materializeBlock(extremes)); }
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void onProgress(const Progress & progress) override { output->onProgress(progress); }
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String getContentType() const override { return output->getContentType(); }
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private:
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BlockOutputStreamPtr output;
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Block header;
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};
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}
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