1#include <Processors/Transforms/MaterializingTransform.h>
2#include <DataStreams/materializeBlock.h>
3
4namespace DB
5{
6
7MaterializingTransform::MaterializingTransform(const Block & header)
8 : ISimpleTransform(header, materializeBlock(header), false) {}
9
10void MaterializingTransform::transform(Chunk & chunk)
11{
12 auto num_rows = chunk.getNumRows();
13 auto columns = chunk.detachColumns();
14
15 for (auto & col : columns)
16 col = col->convertToFullColumnIfConst();
17
18 chunk.setColumns(std::move(columns), num_rows);
19}
20
21}
22