text: /* 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: treenode.cpp 9317 2013-03-19 21:37:22Z dhall $
  *
  *
  ***********************************************************************/
  /** @file */
  
  #include <unistd.h>
  #include <string>
  #include <exception>
  #include <typeinfo>
  #include <cstring>
  
  #include "bytestream.h"
  #include "treenode.h"
  #include "objectreader.h"
  
  using namespace std;
  namespace execplan
  {
  
  /**
   * Constructors/Destructors
   */
  TreeNode::TreeNode(): fDerivedTable(""),
      fRefCount(0),
      fDerivedRefCol(NULL)
  {
      memset(tmp, 0, 312);
  }
  
  TreeNode::TreeNode(const TreeNode& rhs):
      fResult(rhs.fResult),
      fResultType(rhs.resultType()),
      fOperationType(rhs.operationType()),
      fDerivedTable (rhs.derivedTable()),
      fRefCount(rhs.refCount()),
      fDerivedRefCol(rhs.derivedRefCol())
  {
      memcpy(tmp, rhs.tmp, 312);
  }
  
  TreeNode::~TreeNode() {}
  
  void TreeNode::resultType ( const execplan::CalpontSystemCatalog::ColType& resultType)
  {
      fResultType = resultType;
  
      // set scale/precision for the result
      if (fResultType.colDataType == execplan::CalpontSystemCatalog::DECIMAL ||
              fResultType.colDataType == execplan::CalpontSystemCatalog::UDECIMAL)
      {
          fResult.decimalVal.scale = fResultType.scale;
          fResult.decimalVal.precision = fResultType.precision;
      }
  }
  
  /**
   * ostream function
   */
  ostream& operator<<(ostream& output, const TreeNode& rhs)
  {
      output << rhs.toString();
      return output;
  }
  
  }  /* namespace */
  