database/mariadb-columnstore-engine
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This commit is contained in:
Leonid Fedorov
2022-01-21 16:43:49 +00:00
parent 6b6411229f
commit 04752ec546
1376 changed files with 393460 additions and 412662 deletions
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184
utils/regr/regr_slope.cpp
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@ -26,11 +26,11 @@ using namespace mcsv1sdk;
class Add_regr_slope_ToUDAFMap
{
public:
Add_regr_slope_ToUDAFMap()
{
UDAFMap::getMap()["regr_slope"] = new regr_slope();
}
public:
Add_regr_slope_ToUDAFMap()
{
UDAFMap::getMap()["regr_slope"] = new regr_slope();
}
};
static Add_regr_slope_ToUDAFMap addToMap;
@ -38,122 +38,118 @@ static Add_regr_slope_ToUDAFMap addToMap;
// Use the simple data model
struct regr_slope_data
{
uint64_t cnt;
long double sumx;
long double sumx2; // sum of (x squared)
long double sumy;
long double sumxy; // sum of x * y
uint64_t cnt;
long double sumx;
long double sumx2; // sum of (x squared)
long double sumy;
long double sumxy; // sum of x * y
};
mcsv1_UDAF::ReturnCode regr_slope::init(mcsv1Context* context,
ColumnDatum* colTypes)
mcsv1_UDAF::ReturnCode regr_slope::init(mcsv1Context* context, ColumnDatum* colTypes)
{
if (context->getParameterCount() != 2)
{
// The error message will be prepended with
// "The storage engine for the table doesn't support "
context->setErrorMessage("regr_slope() with other than 2 arguments");
return mcsv1_UDAF::ERROR;
}
if (!(isNumeric(colTypes[0].dataType) && isNumeric(colTypes[1].dataType)))
{
// The error message will be prepended with
// "The storage engine for the table doesn't support "
context->setErrorMessage("regr_slope() with non-numeric arguments");
return mcsv1_UDAF::ERROR;
}
context->setUserDataSize(sizeof(regr_slope_data));
context->setResultType(execplan::CalpontSystemCatalog::DOUBLE);
context->setColWidth(8);
context->setScale(DECIMAL_NOT_SPECIFIED);
context->setPrecision(0);
context->setRunFlag(mcsv1sdk::UDAF_IGNORE_NULLS);
return mcsv1_UDAF::SUCCESS;
if (context->getParameterCount() != 2)
{
// The error message will be prepended with
// "The storage engine for the table doesn't support "
context->setErrorMessage("regr_slope() with other than 2 arguments");
return mcsv1_UDAF::ERROR;
}
if (!(isNumeric(colTypes[0].dataType) && isNumeric(colTypes[1].dataType)))
{
// The error message will be prepended with
// "The storage engine for the table doesn't support "
context->setErrorMessage("regr_slope() with non-numeric arguments");
return mcsv1_UDAF::ERROR;
}
context->setUserDataSize(sizeof(regr_slope_data));
context->setResultType(execplan::CalpontSystemCatalog::DOUBLE);
context->setColWidth(8);
context->setScale(DECIMAL_NOT_SPECIFIED);
context->setPrecision(0);
context->setRunFlag(mcsv1sdk::UDAF_IGNORE_NULLS);
return mcsv1_UDAF::SUCCESS;
}
mcsv1_UDAF::ReturnCode regr_slope::reset(mcsv1Context* context)
{
struct regr_slope_data* data = (struct regr_slope_data*)context->getUserData()->data;
data->cnt = 0;
data->sumx = 0.0;
data->sumx2 = 0.0;
data->sumy = 0.0;
data->sumxy = 0.0;
return mcsv1_UDAF::SUCCESS;
struct regr_slope_data* data = (struct regr_slope_data*)context->getUserData()->data;
data->cnt = 0;
data->sumx = 0.0;
data->sumx2 = 0.0;
data->sumy = 0.0;
data->sumxy = 0.0;
return mcsv1_UDAF::SUCCESS;
}
mcsv1_UDAF::ReturnCode regr_slope::nextValue(mcsv1Context* context, ColumnDatum* valsIn)
{
double valy = toDouble(valsIn[0]);
double valx = toDouble(valsIn[1]);
struct regr_slope_data* data = (struct regr_slope_data*)context->getUserData()->data;
double valy = toDouble(valsIn[0]);
double valx = toDouble(valsIn[1]);
struct regr_slope_data* data = (struct regr_slope_data*)context->getUserData()->data;
data->sumy += valy;
data->sumx += valx;
data->sumx2 += valx*valx;
data->sumxy += valx*valy;
++data->cnt;
return mcsv1_UDAF::SUCCESS;
data->sumy += valy;
data->sumx += valx;
data->sumx2 += valx * valx;
data->sumxy += valx * valy;
++data->cnt;
return mcsv1_UDAF::SUCCESS;
}
mcsv1_UDAF::ReturnCode regr_slope::subEvaluate(mcsv1Context* context, const UserData* userDataIn)
{
if (!userDataIn)
{
return mcsv1_UDAF::SUCCESS;
}
struct regr_slope_data* outData = (struct regr_slope_data*)context->getUserData()->data;
struct regr_slope_data* inData = (struct regr_slope_data*)userDataIn->data;
outData->sumx += inData->sumx;
outData->sumx2 += inData->sumx2;
outData->sumy += inData->sumy;
outData->sumxy += inData->sumxy;
outData->cnt += inData->cnt;
if (!userDataIn)
{
return mcsv1_UDAF::SUCCESS;
}
struct regr_slope_data* outData = (struct regr_slope_data*)context->getUserData()->data;
struct regr_slope_data* inData = (struct regr_slope_data*)userDataIn->data;
outData->sumx += inData->sumx;
outData->sumx2 += inData->sumx2;
outData->sumy += inData->sumy;
outData->sumxy += inData->sumxy;
outData->cnt += inData->cnt;
return mcsv1_UDAF::SUCCESS;
}
mcsv1_UDAF::ReturnCode regr_slope::evaluate(mcsv1Context* context, static_any::any& valOut)
{
struct regr_slope_data* data = (struct regr_slope_data*)context->getUserData()->data;
double N = data->cnt;
if (N > 1)
struct regr_slope_data* data = (struct regr_slope_data*)context->getUserData()->data;
double N = data->cnt;
if (N > 1)
{
// COVAR_POP(y, x) / VAR_POP(x)
long double sumx = data->sumx;
long double sumy = data->sumy;
long double sumx2 = data->sumx2;
long double sumxy = data->sumxy;
// These aren't really covar_pop and var_pop. For the purposes of this calculation
// we multiplied everything by N to reduce calc time and variance.
// It all comes out after the final divide
long double covar_pop = N * sumxy - sumx * sumy;
long double var_pop = N * sumx2 - sumx * sumx;
if (var_pop > 0)
{
// COVAR_POP(y, x) / VAR_POP(x)
long double sumx = data->sumx;
long double sumy = data->sumy;
long double sumx2 = data->sumx2;
long double sumxy = data->sumxy;
// These aren't really covar_pop and var_pop. For the purposes of this calculation
// we multiplied everything by N to reduce calc time and variance.
// It all comes out after the final divide
long double covar_pop = N * sumxy - sumx * sumy;
long double var_pop = N * sumx2 - sumx * sumx;
if (var_pop > 0)
{
valOut = static_cast<double>(covar_pop / var_pop);
}
valOut = static_cast<double>(covar_pop / var_pop);
}
return mcsv1_UDAF::SUCCESS;
}
return mcsv1_UDAF::SUCCESS;
}
mcsv1_UDAF::ReturnCode regr_slope::dropValue(mcsv1Context* context, ColumnDatum* valsDropped)
{
double valy = toDouble(valsDropped[0]);
double valx = toDouble(valsDropped[1]);
struct regr_slope_data* data = (struct regr_slope_data*)context->getUserData()->data;
double valy = toDouble(valsDropped[0]);
double valx = toDouble(valsDropped[1]);
struct regr_slope_data* data = (struct regr_slope_data*)context->getUserData()->data;
data->sumy -= valy;
data->sumx -= valx;
data->sumx2 -= valx*valx;
data->sumxy -= valx*valy;
--data->cnt;
data->sumy -= valy;
data->sumx -= valx;
data->sumx2 -= valx * valx;
data->sumxy -= valx * valy;
--data->cnt;
return mcsv1_UDAF::SUCCESS;
return mcsv1_UDAF::SUCCESS;
}