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MCOL-4171

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This commit is contained in:
David Hall
2020-07-30 17:28:11 -05:00
committed by Roman Nozdrin
parent 5287e6860b
commit 638202417f
40 changed files with 807 additions and 250 deletions
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29
utils/windowfunction/wf_sum_avg.h
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@ -29,8 +29,9 @@
namespace windowfunction
{
template<typename T>
// T_IN is the data type of the input values.
// T_OUT is the data type we are using for output and internal values
template<typename T_IN, typename T_OUT>
class WF_sum_avg : public WindowFunctionType
{
public:
@ -38,6 +39,9 @@ public:
WindowFunctionType(id, name), fDistinct(id != WF__SUM && id != WF__AVG)
{
resetData();
utils::int128Max(fMax128);
utils::int128Min(fMin128);
utils::uint128Max(fMaxu128);
}
// pure virtual in base
@ -45,16 +49,27 @@ public:
WindowFunctionType* clone() const;
void resetData();
static boost::shared_ptr<WindowFunctionType> makeFunction(int, const string&, int);
static boost::shared_ptr<WindowFunctionType> makeFunction(int, const string&, int, WindowFunctionColumn*);
protected:
long double fAvg;
long double fSum;
T_IN fVal;
T_OUT fAvg;
T_OUT fSum;
uint64_t fCount;
bool fDistinct;
std::set<T> fSet;
};
std::set<T_IN> fSet;
int128_t fMax128;
int128_t fMin128;
uint128_t fMaxu128;
void checkSumLimit(long double val, long double sum);
void checkSumLimit(int128_t val, int128_t sum);
void checkSumLimit(uint128_t val, uint128_t sum);
int128_t calculateAvg(int128_t sum, uint64_t count, int scale);
uint128_t calculateAvg(uint128_t sum, uint64_t count, int scale);
long double calculateAvg(long double sum, uint64_t count, int scale);
};
} // namespace