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makeMaterializingDAG

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This commit is contained in:
Nikolai Kochetov 2023-02-27 15:41:50 +00:00
parent 3392b96cc3
commit 0400677483
1 changed files with 6 additions and 2 deletions
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8
src/Processors/QueryPlan/Optimizations/optimizeUseProjections.cpp
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@ -951,10 +951,14 @@ static ActionsDAGPtr makeMaterializingDAG(const Block & proj_header, const Block
if (const_positions.empty())
return nullptr;
ActionsDAGPtr dag = std::make_unique<ActionsDAG>(proj_header.getColumnsWithTypeAndName());
ActionsDAGPtr dag = std::make_unique<ActionsDAG>();
auto & outputs = dag->getOutputs();
for (const auto & col : proj_header.getColumnsWithTypeAndName())
outputs.push_back(&dag->addInput(col));
for (auto pos : const_positions)
{
auto & output = dag->getOutputs()[pos];
auto & output = outputs[pos];
output = &dag->materializeNode(*output);
}