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MCOL-641 This commit adds support for group_concat w/o ORDER BY.

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Small refactoring in Row methods.
This commit is contained in:
Roman Nozdrin
2020-05-15 15:55:19 +00:00
parent 21a41738e1
commit f63611c422
3 changed files with 46 additions and 41 deletions
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66
dbcon/joblist/groupconcat.cpp
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@ -56,6 +56,7 @@ using namespace ordering;
#include "jobstep.h"
#include "jlf_common.h"
#include "limitedorderby.h"
#include "mcs_decimal.h"
namespace joblist
{
@ -368,7 +369,7 @@ void GroupConcatAgUM::applyMapping(const boost::shared_array<int>& mapping, cons
// For some reason the rowgroup mapping fcns don't work right in this class.
for (uint64_t i = 0; i < fRow.getColumnCount(); i++)
{
if (fRow.getColumnWidth(i) > 8)
if (fRow.getColumnWidth(i) > datatypes::MAXLEGACYWIDTH)
{
if (fRow.getColTypes()[i] == execplan::CalpontSystemCatalog::CHAR ||
fRow.getColTypes()[i] == execplan::CalpontSystemCatalog::VARCHAR ||
@ -380,6 +381,10 @@ void GroupConcatAgUM::applyMapping(const boost::shared_array<int>& mapping, cons
{
fRow.setLongDoubleField(row.getLongDoubleField(mapping[i]), i);
}
else if (datatypes::Decimal::isWideDecimalType(fRow.getColType(i), fRow.getColumnWidth(i)))
{
row.copyBinaryField<int128_t>(fRow, i, mapping[i]);
}
}
else
{
@ -440,25 +445,34 @@ void GroupConcator::outputRow(std::ostringstream& oss, const rowgroup::Row& row)
case CalpontSystemCatalog::MEDINT:
case CalpontSystemCatalog::INT:
case CalpontSystemCatalog::BIGINT:
case CalpontSystemCatalog::DECIMAL:
case CalpontSystemCatalog::UDECIMAL:
{
int64_t intVal = row.getIntField(*i);
int scale = (int) row.getScale(*i);
if (scale == 0)
{
oss << intVal;
}
else
{
long double dblVal = intVal / pow(10.0, (double)scale);
oss << fixed << setprecision(scale) << dblVal;
}
oss << intVal;
break;
}
case CalpontSystemCatalog::DECIMAL:
case CalpontSystemCatalog::UDECIMAL:
{
int scale = (int) row.getScale(*i);
//{
// long double dblVal = intVal / pow(10.0, (double)scale);
// oss << fixed << setprecision(scale) << dblVal;
//}
char buf[utils::MAXLENGTH16BYTES];
int128_t* dec = row.getBinaryField<int128_t>(*i);
dataconvert::DataConvert::decimalToString(dec,
static_cast<uint32_t>(scale), buf,
sizeof(buf), types[*i]);
oss << fixed << buf;
break;
}
case CalpontSystemCatalog::UTINYINT:
case CalpontSystemCatalog::USMALLINT:
case CalpontSystemCatalog::UMEDINT:
@ -609,27 +623,7 @@ int64_t GroupConcator::lengthEstimate(const rowgroup::Row& row)
case CalpontSystemCatalog::DECIMAL:
case CalpontSystemCatalog::UDECIMAL:
{
int64_t v = row.getIntField(*i);
double scale = row.getScale(*i);
if (scale > 0)
{
v /= (int64_t) pow(10.0, scale);
if (v < 0) fieldLen++;
while ((v /= 10) != 0) fieldLen++;
fieldLen += (int64_t) scale + 2;;
}
else
{
if (v < 0) fieldLen++;
while ((v /= 10) != 0) fieldLen++;
fieldLen += 1;;
}
fieldLen += row.getPrecision(*i)/2;
break;
}
@ -1092,8 +1086,10 @@ void GroupConcatNoOrder::getResult(uint8_t* buff, const string& sep)
}
size_t resultSize = oss.str().size();
resultSize = (resultSize > fGroupConcatLen) ? fGroupConcatLen : resultSize;
fOutputString.reset(new uint8_t[resultSize + 2]);
memset(fOutputString.get(), 0, resultSize + 2);
fOutputString[resultSize] = '\0';
fOutputString[resultSize + 1] = '\0';
strncpy((char*)fOutputString.get(),
oss.str().c_str(), resultSize);