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Viewing changes to drizzled/item/subselect.cc

  • Committer: Olaf van der Spek
  • Date: 2011-02-23 15:52:28 UTC
  • mto: (2198.2.3 drizzle-staging)
  • mto: This revision was merged to the branch mainline in revision 2199.
  • Revision ID: olafvdspek@gmail.com-20110223155228-9d8k16dqdnxmc1sl
Use List::front()

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drizzled/item/subselect.cc
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  if (!select_lex->master_unit()->is_union() &&
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      !select_lex->table_list.elements &&
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      select_lex->item_list.size() == 1 &&
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      !select_lex->item_list.head()->with_sum_func &&
 
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      !select_lex->item_list.front().with_sum_func &&
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      /*
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        We cant change name of Item_field or Item_ref, because it will
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        prevent it's correct resolving, but we should save name of
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        list is field or reference.
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        TODO: solve above problem
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      */
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      !(select_lex->item_list.head()->type() == FIELD_ITEM ||
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        select_lex->item_list.head()->type() == REF_ITEM) &&
 
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      !(select_lex->item_list.front().type() == FIELD_ITEM ||
 
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        select_lex->item_list.front().type() == REF_ITEM) &&
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      !join->conds && !join->having
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      )
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  {
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      push_warning(session, DRIZZLE_ERROR::WARN_LEVEL_NOTE,
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                   ER_SELECT_REDUCED, warn_buff);
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    }
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    substitution= select_lex->item_list.head();
 
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    substitution= &select_lex->item_list.front();
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    /*
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      as far as we moved content to upper level, field which depend of
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      'upper' select is not really dependent => we remove this dependence
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  }
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  else
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  {
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    Item *item= (Item*) select_lex->item_list.head();
 
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    Item *item= &select_lex->item_list.front();
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    if (select_lex->table_list.elements)
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    {
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      select_lex->item_list.push_back(new Item_int("Not_used",
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                                                   (int64_t) 1,
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                                                   MY_INT64_NUM_DECIMAL_DIGITS));
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      select_lex->ref_pointer_array[0]= select_lex->item_list.head();
 
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      select_lex->ref_pointer_array[0]= &select_lex->item_list.front();
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      item= func->create(expr, item);
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      if (!abort_on_null && orig_item->maybe_null)