MySQL 5.1: mysql/src/5.1-dbg/sql/item_subselect.cc File Reference

mysql/src/5.1-dbg/sql/item_subselect.cc File Reference

#include "mysql_priv.h"
#include "sql_select.h"

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Functions
Item *	and_items (Item cond, Item item)
static Item_result	set_row (List< Item > &item_list, Item item, Item_cache row, bool maybe_null)

Function Documentation

Item* and_items	(	Item *	cond,
		Item *	item
	)			`[inline]`

Definition at line 32 of file item_subselect.cc.

References cond.

Referenced by Item_in_subselect::row_value_transformer(), and Item_in_subselect::single_value_transformer().

00033 {
00034   return (cond? (new Item_cond_and(cond, item)) : item);
00035 }

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static Item_result set_row	(	List< Item > &	item_list,
		Item *	item,
		Item_cache **	row,
		bool *	maybe_null
	)			`[static]`

Definition at line 1546 of file item_subselect.cc.

References Item::decimals, base_list::elements, Item_cache::get_cache(), Item::max_length, Item::maybe_null, Item::result_type(), ROW_RESULT, Item_cache::setup(), STRING_RESULT, and Item::unsigned_flag.

Referenced by subselect_union_engine::fix_length_and_dec(), and subselect_single_select_engine::fix_length_and_dec().

01548 {
01549   Item_result res_type= STRING_RESULT;
01550   Item *sel_item;
01551   List_iterator_fast<Item> li(item_list);
01552   for (uint i= 0; (sel_item= li++); i++)
01553   {
01554     item->max_length= sel_item->max_length;
01555     res_type= sel_item->result_type();
01556     item->decimals= sel_item->decimals;
01557     item->unsigned_flag= sel_item->unsigned_flag;
01558     *maybe_null= sel_item->maybe_null;
01559     if (!(row[i]= Item_cache::get_cache(res_type)))
01560       return STRING_RESULT; // we should return something
01561     row[i]->setup(sel_item);
01562   }
01563   if (item_list.elements > 1)
01564     res_type= ROW_RESULT;
01565   return res_type;
01566 }

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Generated on Sat Sep 9 02:24:17 2006 for MySQL 5.1 by

1.4.7

mysql/src/5.1-dbg/sql/item_subselect.cc File Reference

Functions

Function Documentation