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22 lines
531 B
C++
22 lines
531 B
C++
#include <Processors/Transforms/MaterializingTransform.h>
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#include <DataStreams/materializeBlock.h>
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namespace DB
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{
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MaterializingTransform::MaterializingTransform(const Block & header)
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: ISimpleTransform(header, materializeBlock(header), false) {}
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void MaterializingTransform::transform(Chunk & chunk)
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{
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auto num_rows = chunk.getNumRows();
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auto columns = chunk.detachColumns();
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for (auto & col : columns)
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col = col->convertToFullColumnIfConst();
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chunk.setColumns(std::move(columns), num_rows);
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}
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}
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