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			88 lines
		
	
	
		
			2.3 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			88 lines
		
	
	
		
			2.3 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| /* Copyright (C) 2014 InfiniDB, Inc.
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| 
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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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| 
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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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| 
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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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| /****************************************************************************
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| * $Id: func_replace.cpp 3923 2013-06-19 21:43:06Z bwilkinson $
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| *
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| *
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| ****************************************************************************/
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| 
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| #include <string>
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| using namespace std;
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| 
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| #include "functor_str.h"
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| #include "functioncolumn.h"
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| using namespace execplan;
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| 
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| #include "rowgroup.h"
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| using namespace rowgroup;
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| 
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| #include "joblisttypes.h"
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| using namespace joblist;
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| 
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| namespace funcexp
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| {
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| 
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| CalpontSystemCatalog::ColType Func_replace::operationType(FunctionParm& fp, CalpontSystemCatalog::ColType& resultType)
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| {
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|     // operation type is not used by this functor
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|     return fp[0]->data()->resultType();
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| }
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| 
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| 
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| std::string Func_replace::getStrVal(rowgroup::Row& row,
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|                                     FunctionParm& fp,
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|                                     bool& isNull,
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|                                     execplan::CalpontSystemCatalog::ColType&)
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| {
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|     const string& str = fp[0]->data()->getStrVal(row, isNull);
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| 
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|     const string& fromstr = fp[1]->data()->getStrVal(row, isNull);
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| 
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|     const string& tostr = fp[2]->data()->getStrVal(row, isNull);
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| 
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|     string newstr;
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|     unsigned int i = 0;
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| 
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|     for (;;)
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|     {
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|         size_t pos = str.find(fromstr, i);
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| 
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|         if ( pos != string::npos )
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|         {
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|             //match
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|             if ( pos > i )
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|                 newstr = newstr + str.substr(i, pos - i);
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| 
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|             newstr = newstr + tostr;
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|             i = pos + fromstr.size();
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|         }
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|         else
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|         {
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|             newstr = newstr + str.substr(i, 1000);
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|             break;
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|         }
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|     }
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| 
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|     return newstr;
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| }
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| 
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| 
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| } // namespace funcexp
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| // vim:ts=4 sw=4:
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| 
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