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Always apply row_level_filter immediately

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This commit is contained in:
Denis Glazachev 2021-02-20 03:18:16 +04:00
parent 2ab643170d
commit 85ea5cafc4
1 changed files with 18 additions and 1 deletions
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19
src/Storages/MergeTree/MergeTreeRangeReader.cpp
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@ -865,7 +865,7 @@ void MergeTreeRangeReader::executePrewhereActionsAndFilterColumns(ReadResult & r
return;
const auto & header = merge_tree_reader->getColumns();
size_t num_columns = header.size();
const auto num_columns = header.size();
if (result.columns.size() != num_columns)
throw Exception("Invalid number of columns passed to MergeTreeRangeReader. "
@ -900,8 +900,25 @@ void MergeTreeRangeReader::executePrewhereActionsAndFilterColumns(ReadResult & r
if (prewhere_info->row_level_filter)
{
prewhere_info->row_level_filter->execute(block);
const auto filter_column_pos = block.getPositionByName(prewhere_info->row_level_column_name);
result.addFilter(block.getByPosition(filter_column_pos).column);
result.columns.clear();
result.columns.reserve(block.columns());
for (auto & col : block)
result.columns.emplace_back(std::move(col.column));
const auto * result_filter = result.getFilter();
filterColumns(result.columns, result_filter->getData());
auto it = block.begin();
for (auto & col : result.columns)
it++->column = std::move(col);
result.columns.clear();
result.clearFilter();
}
prewhere_info->prewhere_actions->execute(block);