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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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287
utils/udfsdk/median.cpp
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@ -24,202 +24,199 @@
using namespace mcsv1sdk;
mcsv1_UDAF::ReturnCode median::init(mcsv1Context* context,
ColumnDatum* colTypes)
mcsv1_UDAF::ReturnCode median::init(mcsv1Context* context, ColumnDatum* colTypes)
{
if (context->getParameterCount() < 1)
{
// The error message will be prepended with
// "The storage engine for the table doesn't support "
context->setErrorMessage("median() with 0 arguments");
return mcsv1_UDAF::ERROR;
}
if (context->getParameterCount() < 1)
{
// The error message will be prepended with
// "The storage engine for the table doesn't support "
context->setErrorMessage("median() with 0 arguments");
return mcsv1_UDAF::ERROR;
}
if (context->getParameterCount() > 1)
{
context->setErrorMessage("median() with more than 1 argument");
return mcsv1_UDAF::ERROR;
}
if (context->getParameterCount() > 1)
{
context->setErrorMessage("median() with more than 1 argument");
return mcsv1_UDAF::ERROR;
}
if (!(isNumeric(colTypes[0].dataType)))
{
// The error message will be prepended with
// "The storage engine for the table doesn't support "
context->setErrorMessage("median() with non-numeric argument");
return mcsv1_UDAF::ERROR;
}
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;
if (!(isNumeric(colTypes[0].dataType)))
{
// The error message will be prepended with
// "The storage engine for the table doesn't support "
context->setErrorMessage("median() with non-numeric argument");
return mcsv1_UDAF::ERROR;
}
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 median::reset(mcsv1Context* context)
{
MedianData* data = static_cast<MedianData*>(context->getUserData());
data->mData.clear();
return mcsv1_UDAF::SUCCESS;
MedianData* data = static_cast<MedianData*>(context->getUserData());
data->mData.clear();
return mcsv1_UDAF::SUCCESS;
}
mcsv1_UDAF::ReturnCode median::nextValue(mcsv1Context* context, ColumnDatum* valsIn)
{
static_any::any& valIn = valsIn[0].columnData;
MEDIAN_DATA& data = static_cast<MedianData*>(context->getUserData())->mData;
static_any::any& valIn = valsIn[0].columnData;
MEDIAN_DATA& data = static_cast<MedianData*>(context->getUserData())->mData;
if (valIn.empty())
{
return mcsv1_UDAF::SUCCESS; // Ought not happen when UDAF_IGNORE_NULLS is on.
}
if (valIn.empty())
{
return mcsv1_UDAF::SUCCESS; // Ought not happen when UDAF_IGNORE_NULLS is on.
}
DATATYPE val = convertAnyTo<double>(valIn);
DATATYPE val = convertAnyTo<double>(valIn);
// For decimal types, we need to move the decimal point.
uint32_t scale = valsIn[0].scale;
// 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);
}
if (val != 0 && scale > 0)
{
val /= pow(10.0, (double)scale);
}
data[val]++;
data[val]++;
return mcsv1_UDAF::SUCCESS;
return mcsv1_UDAF::SUCCESS;
}
mcsv1_UDAF::ReturnCode median::subEvaluate(mcsv1Context* context, const UserData* userDataIn)
{
if (!userDataIn)
{
return mcsv1_UDAF::SUCCESS;
}
MEDIAN_DATA& outData = static_cast<MedianData*>(context->getUserData())->mData;
const MEDIAN_DATA& inData = static_cast<const MedianData*>(userDataIn)->mData;
MEDIAN_DATA::const_iterator iter = inData.begin();
for (; iter != inData.end(); ++iter)
{
outData[iter->first] += iter->second;
}
if (!userDataIn)
{
return mcsv1_UDAF::SUCCESS;
}
MEDIAN_DATA& outData = static_cast<MedianData*>(context->getUserData())->mData;
const MEDIAN_DATA& inData = static_cast<const MedianData*>(userDataIn)->mData;
MEDIAN_DATA::const_iterator iter = inData.begin();
for (; iter != inData.end(); ++iter)
{
outData[iter->first] += iter->second;
}
return mcsv1_UDAF::SUCCESS;
}
mcsv1_UDAF::ReturnCode median::evaluate(mcsv1Context* context, static_any::any& valOut)
{
uint64_t cnt1 = 0, cnt2 = 0;
MEDIAN_DATA& data = static_cast<MedianData*>(context->getUserData())->mData;
uint64_t cnt1 = 0, cnt2 = 0;
MEDIAN_DATA& data = static_cast<MedianData*>(context->getUserData())->mData;
if (data.size() == 0)
{
valOut = (DATATYPE)0;
return mcsv1_UDAF::SUCCESS;
}
MEDIAN_DATA::iterator iter(data.begin());
MEDIAN_DATA::iterator revfrom(data.end());
MEDIAN_DATA::reverse_iterator riter(revfrom);
cnt1 += iter->second;
cnt2 += riter->second;
while (iter->first < riter->first)
{
while (cnt1 < cnt2 && iter->first < riter->first)
{
++iter;
cnt1 += iter->second;
}
while (cnt2 < cnt1 && iter->first < riter->first)
{
++riter;
cnt2 += riter->second;
}
while (cnt1 == cnt2 && iter->first < riter->first)
{
++iter;
cnt1 += iter->second;
if (iter->first > riter->first)
{
break;
}
++riter;
cnt2 += riter->second;
}
}
valOut = (iter->first + riter->first) / 2;
if (data.size() == 0)
{
valOut = (DATATYPE)0;
return mcsv1_UDAF::SUCCESS;
}
MEDIAN_DATA::iterator iter(data.begin());
MEDIAN_DATA::iterator revfrom(data.end());
MEDIAN_DATA::reverse_iterator riter(revfrom);
cnt1 += iter->second;
cnt2 += riter->second;
while (iter->first < riter->first)
{
while (cnt1 < cnt2 && iter->first < riter->first)
{
++iter;
cnt1 += iter->second;
}
while (cnt2 < cnt1 && iter->first < riter->first)
{
++riter;
cnt2 += riter->second;
}
while (cnt1 == cnt2 && iter->first < riter->first)
{
++iter;
cnt1 += iter->second;
if (iter->first > riter->first)
{
break;
}
++riter;
cnt2 += riter->second;
}
}
valOut = (iter->first + riter->first) / 2;
return mcsv1_UDAF::SUCCESS;
}
mcsv1_UDAF::ReturnCode median::dropValue(mcsv1Context* context, ColumnDatum* valsDropped)
{
static_any::any& valIn = valsDropped[0].columnData;
MEDIAN_DATA& data = static_cast<MedianData*>(context->getUserData())->mData;
static_any::any& valIn = valsDropped[0].columnData;
MEDIAN_DATA& data = static_cast<MedianData*>(context->getUserData())->mData;
if (valIn.empty())
{
return mcsv1_UDAF::SUCCESS; // Ought not happen when UDAF_IGNORE_NULLS is on.
}
if (valIn.empty())
{
return mcsv1_UDAF::SUCCESS; // Ought not happen when UDAF_IGNORE_NULLS is on.
}
DATATYPE val = convertAnyTo<double>(valIn);
DATATYPE val = convertAnyTo<double>(valIn);
// For decimal types, we need to move the decimal point.
uint32_t scale = valsDropped[0].scale;
// 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);
}
if (val != 0 && scale > 0)
{
val /= pow(10.0, (double)scale);
}
data[val]--;
data[val]--;
return mcsv1_UDAF::SUCCESS;
return mcsv1_UDAF::SUCCESS;
}
mcsv1_UDAF::ReturnCode median::createUserData(UserData*& userData, int32_t& length)
{
userData = new MedianData;
length = sizeof(MedianData);
return mcsv1_UDAF::SUCCESS;
userData = new MedianData;
length = sizeof(MedianData);
return mcsv1_UDAF::SUCCESS;
}
void MedianData::serialize(messageqcpp::ByteStream& bs) const
{
MEDIAN_DATA::const_iterator iter = mData.begin();
DATATYPE num;
uint32_t cnt;
bs << (int32_t)mData.size();
MEDIAN_DATA::const_iterator iter = mData.begin();
DATATYPE num;
uint32_t cnt;
bs << (int32_t)mData.size();
for (; iter != mData.end(); ++iter)
{
num = iter->first;
bs << num;
cnt = iter->second;
bs << cnt;
}
for (; iter != mData.end(); ++iter)
{
num = iter->first;
bs << num;
cnt = iter->second;
bs << cnt;
}
}
void MedianData::unserialize(messageqcpp::ByteStream& bs)
{
mData.clear();
int32_t sz;
DATATYPE num;
uint32_t cnt;
bs >> sz;
mData.clear();
int32_t sz;
DATATYPE num;
uint32_t cnt;
bs >> sz;
for (int i = 0; i < sz; ++i)
{
bs >> num;
bs >> cnt;
mData[num] = cnt;
}
for (int i = 0; i < sz; ++i)
{
bs >> num;
bs >> cnt;
mData[num] = cnt;
}
}