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  • Committer: Bazaar Package Importer
  • Author(s): Norbert Tretkowski
  • Date: 2010-05-11 18:47:32 UTC
  • mto: (2.1.2 sid) (1.2.1 upstream)
  • mto: This revision was merged to the branch mainline in revision 4.
  • Revision ID: james.westby@ubuntu.com-20100511184732-jhn055kfhxze24kt
Tags: upstream-5.1.46
Import upstream version 5.1.46

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sql/item_sum.cc
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/* Copyright (C) 2000-2003 MySQL AB
 
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/* Copyright (c) 2000, 2010 Oracle and/or its affiliates. All rights reserved.
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   This program is free software; you can redistribute it and/or modify
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   it under the terms of the GNU General Public License as published by
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  default:
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    DBUG_ASSERT(0);
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  };
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  setup(args[0], NULL);
 
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  setup_hybrid(args[0], NULL);
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  /* MIN/MAX can return NULL for empty set indepedent of the used column */
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  maybe_null= 1;
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  unsigned_flag=item->unsigned_flag;
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    of the original MIN/MAX object and it is saved in this object's cache.
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*/
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void Item_sum_hybrid::setup(Item *item, Item *value_arg)
 
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void Item_sum_hybrid::setup_hybrid(Item *item, Item *value_arg)
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{
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  value= Item_cache::get_cache(item);
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  value->setup(item);
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Item *Item_sum_min::copy_or_same(THD* thd)
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{
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  Item_sum_min *item= new (thd->mem_root) Item_sum_min(thd, this);
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  item->setup(args[0], value);
 
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  item->setup_hybrid(args[0], value);
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  return item;
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}
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Item *Item_sum_max::copy_or_same(THD* thd)
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{
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  Item_sum_max *item= new (thd->mem_root) Item_sum_max(thd, this);
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  item->setup(args[0], value);
 
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  item->setup_hybrid(args[0], value);
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  return item;
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}
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    {
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      if (i)
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        str->append(',');
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      (*order[i]->item)->print(str, query_type);
 
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      pargs[i + arg_count_field]->print(str, query_type);
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      if (order[i]->asc)
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        str->append(STRING_WITH_LEN(" ASC"));
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      else