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MCOL-523 Add UDAF and UDAnF SDK

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This commit is contained in:
David Hall
2017-07-26 11:53:08 -05:00
parent 630b113565
commit bc2a4e7795
75 changed files with 10250 additions and 4523 deletions
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utils/udfsdk/ssq.cpp Executable file
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/* Copyright (C) 2017 MariaDB Corporaton
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; version 2 of
the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301, USA. */
#include <sstream>
#include <cstring>
#include <typeinfo>
#include "ssq.h"
#include "bytestream.h"
#include "objectreader.h"
using namespace mcsv1sdk;
#define DATATYPE double
struct ssq_data
{
uint64_t scale;
DATATYPE sumsq;
ssq_data() : scale(0){}
};
#define OUT_TYPE int64_t
mcsv1_UDAF::ReturnCode ssq::init(mcsv1Context* context,
COL_TYPES& colTypes)
{
if (colTypes.size() < 1)
{
// The error message will be prepended with
// "The storage engine for the table doesn't support "
context->setErrorMessage("ssq() with 0 arguments");
return mcsv1_UDAF::ERROR;
}
if (colTypes.size() > 1)
{
context->setErrorMessage("ssq() with more than 1 argument");
return mcsv1_UDAF::ERROR;
}
if (!(isNumeric(colTypes[0].second)))
{
// The error message will be prepended with
// "The storage engine for the table doesn't support "
context->setErrorMessage("ssq() with non-numeric argument");
return mcsv1_UDAF::ERROR;
}
context->setUserDataSize(sizeof(ssq_data));
context->setResultType(CalpontSystemCatalog::DOUBLE);
context->setColWidth(8);
context->setScale(context->getScale()*2);
context->setPrecision(19);
context->setRunFlag(mcsv1sdk::UDAF_IGNORE_NULLS);
return mcsv1_UDAF::SUCCESS;
}
mcsv1_UDAF::ReturnCode ssq::finish(mcsv1Context* context)
{
return mcsv1_UDAF::SUCCESS;
}
mcsv1_UDAF::ReturnCode ssq::reset(mcsv1Context* context)
{
struct ssq_data* data = (struct ssq_data*)context->getUserData()->data;
if (data)
{
data->scale = 0;
data->sumsq = 0;
}
return mcsv1_UDAF::SUCCESS;
}
mcsv1_UDAF::ReturnCode ssq::nextValue(mcsv1Context* context,
std::vector<ColumnDatum>& valsIn)
{
static_any::any& valIn = valsIn[0].columnData;
struct ssq_data* data = (struct ssq_data*)context->getUserData()->data;
DATATYPE val = 0.0;
if (valIn.empty())
{
return mcsv1_UDAF::SUCCESS; // Ought not happen when UDAF_IGNORE_NULLS is on.
}
if (valIn.compatible(charTypeId))
{
val = valIn.cast<char>();
}
else if (valIn.compatible(scharTypeId))
{
val = valIn.cast<signed char>();
}
else if (valIn.compatible(shortTypeId))
{
val = valIn.cast<short>();
}
else if (valIn.compatible(intTypeId))
{
val = valIn.cast<int>();
}
else if (valIn.compatible(longTypeId))
{
val = valIn.cast<long>();
}
else if (valIn.compatible(llTypeId))
{
val = valIn.cast<long long>();
}
else if (valIn.compatible(ucharTypeId))
{
val = valIn.cast<unsigned char>();
}
else if (valIn.compatible(ushortTypeId))
{
val = valIn.cast<unsigned short>();
}
else if (valIn.compatible(uintTypeId))
{
val = valIn.cast<unsigned int>();
}
else if (valIn.compatible(ulongTypeId))
{
val = valIn.cast<unsigned long>();
}
else if (valIn.compatible(ullTypeId))
{
val = valIn.cast<unsigned long long>();
}
else if (valIn.compatible(floatTypeId))
{
val = valIn.cast<float>();
}
else if (valIn.compatible(doubleTypeId))
{
val = valIn.cast<double>();
}
// For decimal types, we need to move the decimal point.
uint32_t scale = valsIn[0].scale;
if (val != 0 && scale > 0)
{
val /= pow(10.0, (double)scale);
}
data->sumsq += val*val;
return mcsv1_UDAF::SUCCESS;
}
mcsv1_UDAF::ReturnCode ssq::subEvaluate(mcsv1Context* context, const UserData* userDataIn)
{
struct ssq_data* outData = (struct ssq_data*)context->getUserData()->data;
struct ssq_data* inData = (struct ssq_data*)userDataIn->data;
outData->sumsq += inData->sumsq;
return mcsv1_UDAF::SUCCESS;
}
mcsv1_UDAF::ReturnCode ssq::evaluate(mcsv1Context* context, static_any::any& valOut)
{
struct ssq_data* data = (struct ssq_data*)context->getUserData()->data;
valOut = data->sumsq;
return mcsv1_UDAF::SUCCESS;
}
mcsv1_UDAF::ReturnCode ssq::dropValue(mcsv1Context* context,
std::vector<ColumnDatum>& valsDropped)
{
static_any::any& valIn = valsDropped[0].columnData;
struct ssq_data* data = (struct ssq_data*)context->getUserData()->data;
DATATYPE val = 0.0;
if (valIn.empty())
{
return mcsv1_UDAF::SUCCESS; // Ought not happen when UDAF_IGNORE_NULLS is on.
}
if (valIn.compatible(charTypeId))
{
val = valIn.cast<char>();
}
else if (valIn.compatible(scharTypeId))
{
val = valIn.cast<signed char>();
}
else if (valIn.compatible(shortTypeId))
{
val = valIn.cast<short>();
}
else if (valIn.compatible(intTypeId))
{
val = valIn.cast<int>();
}
else if (valIn.compatible(longTypeId))
{
val = valIn.cast<long>();
}
else if (valIn.compatible(llTypeId))
{
val = valIn.cast<long long>();
}
else if (valIn.compatible(ucharTypeId))
{
val = valIn.cast<unsigned char>();
}
else if (valIn.compatible(ushortTypeId))
{
val = valIn.cast<unsigned short>();
}
else if (valIn.compatible(uintTypeId))
{
val = valIn.cast<unsigned int>();
}
else if (valIn.compatible(ulongTypeId))
{
val = valIn.cast<unsigned long>();
}
else if (valIn.compatible(ullTypeId))
{
val = valIn.cast<unsigned long long>();
}
else if (valIn.compatible(floatTypeId))
{
val = valIn.cast<float>();
}
else if (valIn.compatible(doubleTypeId))
{
val = valIn.cast<double>();
}
// For decimal types, we need to move the decimal point.
uint32_t scale = valsDropped[0].scale;
if (val != 0 && scale > 0)
{
val /= pow(10.0, (double)scale);
}
data->sumsq -= val*val;
return mcsv1_UDAF::SUCCESS;
}