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https://github.com/mariadb-corporation/mariadb-columnstore-engine.git
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3919c541ac
* Fix clang warnings * Remove vim tab guides * initialize variables * 'strncpy' output truncated before terminating nul copying as many bytes from a string as its length * Fix ISO C++17 does not allow 'register' storage class specifier for outdated bison * chars are unsigned on ARM, having if (ival < 0) always false * chars are unsigned by default on ARM and comparison with -1 if always true
130 lines
3.9 KiB
C++
130 lines
3.9 KiB
C++
/* Copyright (C) 2014 InfiniDB, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; version 2 of
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the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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/****************************************************************************
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* $Id: func_find_in_set.cpp 2675 2011-06-22 04:58:07Z chao $
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*
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*
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****************************************************************************/
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#include <cstdlib>
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#include <string>
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#include <sstream>
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using namespace std;
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#include <boost/tokenizer.hpp>
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using namespace boost;
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#include "functor_int.h"
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#include "functioncolumn.h"
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#include "rowgroup.h"
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#include "calpontsystemcatalog.h"
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using namespace execplan;
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#include "dataconvert.h"
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#include "errorcodes.h"
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#include "idberrorinfo.h"
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#include "errorids.h"
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using namespace logging;
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namespace funcexp
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{
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CalpontSystemCatalog::ColType Func_find_in_set::operationType(FunctionParm& fp,
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CalpontSystemCatalog::ColType& resultType)
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{
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return resultType;
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}
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int64_t Func_find_in_set::getIntVal(rowgroup::Row& row, FunctionParm& parm, bool& isNull,
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CalpontSystemCatalog::ColType& op_ct)
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{
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const string& searchStr = parm[0]->data()->getStrVal(row, isNull);
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if (isNull)
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return 0;
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const string& setString = parm[1]->data()->getStrVal(row, isNull);
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if (isNull)
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return 0;
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if (searchStr.find(",") != string::npos)
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return 0;
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if (setString.length() < searchStr.length())
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return 0;
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CHARSET_INFO* cs = op_ct.getCharset();
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my_wc_t wc = 0;
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const char* str_begin = setString.c_str();
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const char* str_end = setString.c_str();
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const char* real_end = str_end + setString.length();
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const char* find_str = searchStr.c_str();
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size_t find_str_len = searchStr.length();
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int position = 0;
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static const char separator = ',';
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while (1)
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{
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int symbol_len;
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if ((symbol_len = cs->mb_wc(&wc, (uchar*)str_end, (uchar*)real_end)) > 0)
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{
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const char* substr_end = str_end + symbol_len;
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bool is_last_item = (substr_end == real_end);
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bool is_separator = (wc == (my_wc_t)separator);
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if (is_separator || is_last_item)
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{
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position++;
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if (is_last_item && !is_separator)
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str_end = substr_end;
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if (!cs->strnncoll(str_begin, (size_t)(str_end - str_begin), find_str, find_str_len))
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return (int64_t)position;
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else
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str_begin = substr_end;
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}
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str_end = substr_end;
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}
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else if (str_end - str_begin == 0 && find_str_len == 0 && wc == (my_wc_t)separator)
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return (longlong)++position;
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else
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return 0;
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}
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return 0;
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}
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double Func_find_in_set::getDoubleVal(rowgroup::Row& row, FunctionParm& parm, bool& isNull,
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execplan::CalpontSystemCatalog::ColType& ct)
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{
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return (double)getIntVal(row, parm, isNull, ct);
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}
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string Func_find_in_set::getStrVal(rowgroup::Row& row, FunctionParm& parm, bool& isNull,
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CalpontSystemCatalog::ColType& ct)
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{
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return intToString(getIntVal(row, parm, isNull, ct));
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}
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execplan::IDB_Decimal Func_find_in_set::getDecimalVal(rowgroup::Row& row, FunctionParm& fp, bool& isNull,
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execplan::CalpontSystemCatalog::ColType& op_ct)
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{
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IDB_Decimal decimal;
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decimal.value = getIntVal(row, fp, isNull, op_ct);
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decimal.scale = op_ct.scale;
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return decimal;
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}
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} // namespace funcexp
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