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Addition to prev. revision [#CLICKHOUSE-2]

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Alexey Milovidov 2018-09-02 06:47:14 +03:00
parent afe3973325
commit ff13752d01
1 changed files with 3 additions and 0 deletions
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3
dbms/src/Interpreters/Set.cpp
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@ -317,6 +317,9 @@ ColumnPtr Set::execute(const Block & block, bool negative) const
ColumnUInt8::Container & vec_res = res->getData();
vec_res.resize(block.safeGetByPosition(0).column->size());
if (vec_res.empty())
return res;
std::shared_lock lock(rwlock);
/// If the set is empty.