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MCOL-1983 Have regr_intercept, regr_slope and regr_r2 return NULL for 1 or 0 rows in set

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This commit is contained in:
David Hall
2018-11-29 13:31:12 -06:00
parent 453850ee1a
commit 0cef3bf31c
4 changed files with 4 additions and 4 deletions
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2
utils/regr/regr_intercept.cpp
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@ -139,7 +139,7 @@ mcsv1_UDAF::ReturnCode regr_intercept::evaluate(mcsv1Context* context, static_an
{
struct regr_intercept_data* data = (struct regr_intercept_data*)context->getUserData()->data;
double N = data->cnt;
if (N > 0)
if (N > 1)
{
double sumx = data->sumx;
double sumy = data->sumy;

2
utils/regr/regr_r2.cpp
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@ -144,7 +144,7 @@ mcsv1_UDAF::ReturnCode regr_r2::evaluate(mcsv1Context* context, static_any::any&
{
struct regr_r2_data* data = (struct regr_r2_data*)context->getUserData()->data;
double N = data->cnt;
if (N > 0)
if (N > 1)
{
double sumx = data->sumx;
double sumy = data->sumy;

2
utils/regr/regr_slope.cpp
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@ -139,7 +139,7 @@ mcsv1_UDAF::ReturnCode regr_slope::evaluate(mcsv1Context* context, static_any::a
{
struct regr_slope_data* data = (struct regr_slope_data*)context->getUserData()->data;
double N = data->cnt;
if (N > 0)
if (N > 1)
{
// COVAR_POP(y, x) / VAR_POP(x)
double sumx = data->sumx;

2
utils/windowfunction/wf_udaf.cpp
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@ -84,7 +84,6 @@ void WF_udaf::resetData()
getContext().getFunction()->reset(&getContext());
fDistinctMap.clear();
WindowFunctionType::resetData();
fValOut.reset();
}
void WF_udaf::parseParms(const std::vector<execplan::SRCP>& parms)
@ -709,6 +708,7 @@ void WF_udaf::operator()(int64_t b, int64_t e, int64_t c)
mcsv1sdk::mcsv1_UDAF::ReturnCode rc;
uint64_t colOut = fFieldIndex[0];
bool isNull = false;
fValOut.reset();
if ((fFrameUnit == WF__FRAME_ROWS) ||
(fPrev == -1) ||