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This commit is contained in:
Anastasiya Rodigina 2019-04-27 15:43:28 +03:00
parent e750755f8f
commit 87b49f13b7
2 changed files with 9 additions and 8 deletions
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13
dbms/src/DataStreams/ReverseBlockInputStream.cpp
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@ -27,19 +27,20 @@ namespace DB
return Block();
}
PaddedPODArray<size_t> permutation;
IColumn::Permutation permutation;
for (size_t i = 0; i < result_block.rows(); ++i)
size_t rows_size = result_block.rows();
for (size_t i = 0; i < rows_size; ++i)
{
permutation.emplace_back(result_block.rows() - 1 - i);
permutation.emplace_back(rows_size - 1 - i);
}
for (auto iter = result_block.begin(); iter != result_block.end(); ++iter)
for (auto& block : result_block)
{
iter->column = iter->column->permute(permutation, 0);
block.column = block.column->permute(permutation, 0);
}
return result_block;
}
} // namespace DB
}

4
dbms/src/DataStreams/ReverseBlockInputStream.h
View File

@ -12,10 +12,10 @@ namespace DB
class ReverseBlockInputStream : public IBlockInputStream
{
public:
ReverseBlockInputStream(const BlockInputStreamPtr& input);
ReverseBlockInputStream(
const BlockInputStreamPtr& input);
String getName() const override;
Block getHeader() const override;
protected: