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fix reading with preferred_block_size_bytes = 0

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Nikolai Kochetov 2017-09-22 18:36:22 +03:00 committed by alexey-milovidov
parent 48c5382c92
commit 322e56c692
1 changed files with 4 additions and 2 deletions
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6
dbms/src/Storages/MergeTree/MergeTreeBaseBlockInputStream.cpp
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@ -391,7 +391,8 @@ Block MergeTreeBaseBlockInputStream::readFromPart()
if (!post_filter_pos)
{
task->size_predictor->updateFilteredRowsRation(pre_filter.size(), pre_filter.size());
if (task->size_predictor)
task->size_predictor->updateFilteredRowsRation(pre_filter.size(), pre_filter.size());
res.clear();
continue;
}
@ -412,7 +413,8 @@ Block MergeTreeBaseBlockInputStream::readFromPart()
col.column->filter(task->column_name_set.count(col.name) ? post_filter : pre_filter, -1);
rows = col.column->size();
}
task->size_predictor->updateFilteredRowsRation(pre_filter.size(), pre_filter.size() - rows);
if (task->size_predictor)
task->size_predictor->updateFilteredRowsRation(pre_filter.size(), pre_filter.size() - rows);
/// Replace column with condition value from PREWHERE to a constant.
if (!task->remove_prewhere_column)