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Fixed error with ColumnAggregateFunction and LIMIT [#METR-2944].

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This commit is contained in:
Alexey Milovidov 2016-06-22 00:42:57 +03:00
parent b8ca97a891
commit 09cf24cd13
1 changed files with 16 additions and 6 deletions
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22
dbms/include/DB/Columns/ColumnAggregateFunction.h
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@ -61,7 +61,7 @@ private:
/// Источник. Используется (удерживает источник от уничтожения),
/// если данный столбец создан из другого и использует все или часть его значений.
const std::shared_ptr<const ColumnAggregateFunction> src;
std::shared_ptr<const ColumnAggregateFunction> src;
/// Массив указателей на состояния агрегатных функций, расположенных в пулах.
Container_t data;
@ -211,21 +211,31 @@ public:
return res;
}
void insertRangeFrom(const IColumn & src, size_t start, size_t length) override
void insertRangeFrom(const IColumn & from, size_t start, size_t length) override
{
const ColumnAggregateFunction & src_concrete = static_cast<const ColumnAggregateFunction &>(src);
const ColumnAggregateFunction & from_concrete = static_cast<const ColumnAggregateFunction &>(from);
if (start + length > src_concrete.getData().size())
if (start + length > from_concrete.getData().size())
throw Exception("Parameters start = "
+ toString(start) + ", length = "
+ toString(length) + " are out of bound in ColumnAggregateFunction::insertRangeFrom method"
" (data.size() = " + toString(src_concrete.getData().size()) + ").",
" (data.size() = " + toString(from_concrete.getData().size()) + ").",
ErrorCodes::PARAMETER_OUT_OF_BOUND);
if (src && src.get() != &from_concrete)
{
throw Exception("ColumnAggregateFunction could have only one source that owns aggregation states", ErrorCodes::BAD_ARGUMENTS);
}
else
{
/// Keep shared ownership of aggregation states.
src = from_concrete.shared_from_this();
}
auto & data = getData();
size_t old_size = data.size();
data.resize(old_size + length);
memcpy(&data[old_size], &src_concrete.getData()[start], length * sizeof(data[0]));
memcpy(&data[old_size], &from_concrete.getData()[start], length * sizeof(data[0]));
}
void popBack(size_t n) override