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the begginning

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david hill
2016-01-06 14:08:59 -06:00
parent 66a31debcb
commit f6afc42dd0
18251 changed files with 16460679 additions and 2 deletions
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utils/funcexp/func_concat_ws.cpp Normal file
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/* Copyright (C) 2014 InfiniDB, Inc.
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. */
/****************************************************************************
* $Id: func_concat_ws.cpp 3714 2013-04-18 16:29:25Z bpaul $
*
*
****************************************************************************/
#include <string>
using namespace std;
#include "functor_str.h"
#include "functioncolumn.h"
#include "utils_utf8.h"
using namespace execplan;
#include "rowgroup.h"
using namespace rowgroup;
#define STRCOLL_ENH__
namespace funcexp
{
CalpontSystemCatalog::ColType Func_concat_ws::operationType(FunctionParm& fp, CalpontSystemCatalog::ColType& resultType )
{
// operation type is not used by this functor
return fp[0]->data()->resultType();
}
string Func_concat_ws::getStrVal(Row& row,
FunctionParm& parm,
bool& isNull,
CalpontSystemCatalog::ColType&)
{
string delim = stringValue(parm[0], row, isNull);
if (isNull)
return "";
#ifdef STRCOLL_ENH__
wstring wstr;
size_t strwclen = utf8::idb_mbstowcs(0,delim.c_str(),0) + 1;
wchar_t* wcbuf = (wchar_t*)alloca(strwclen * sizeof(wchar_t));
strwclen = utf8::idb_mbstowcs(wcbuf, delim.c_str(), strwclen);
wstring wdelim(wcbuf, strwclen);
for ( unsigned int id = 1 ; id < parm.size() ; id++)
{
string tstr = stringValue(parm[id], row, isNull);
if (isNull)
{
isNull = false;
continue;
}
if (!wstr.empty())
wstr += wdelim;
size_t strwclen1 = utf8::idb_mbstowcs(0, tstr.c_str(), 0) + 1;
wchar_t* wcbuf1 = (wchar_t*)alloca(strwclen1 * sizeof(wchar_t));
strwclen1 = utf8::idb_mbstowcs(wcbuf1, tstr.c_str(), strwclen1);
wstring str1(wcbuf1, strwclen1);
wstr += str1;
}
size_t strmblen = utf8::idb_wcstombs(0, wstr.c_str(), 0) + 1;
char* outbuf = (char*)alloca(strmblen * sizeof(char));
strmblen = utf8::idb_wcstombs(outbuf, wstr.c_str(), strmblen);
if (strmblen == 0)
isNull = true;
else
isNull = false;
return string(outbuf, strmblen);
#else
string str;
for ( uint32_t i = 1 ; i < parm.size() ; i++)
{
str += string(stringValue(parm[i], row, isNull).c_str());
if (isNull)
{
isNull = false;
continue;
}
if (!str.empty() && !isNull)
str += delim;
}
if (str.empty())
isNull = true;
else
isNull = false;
return str;
#endif
}
} // namespace funcexp
// vim:ts=4 sw=4: