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Merge 4.1 to 5.0

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This commit is contained in:
pem@mysql.com
2003-12-01 16:14:40 +01:00
parent 82270288de f266cdabab
commit 6e717133c5
270 changed files with 4938 additions and 2632 deletions
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17
sql/sql_lex.h
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@ -306,7 +306,6 @@ class JOIN;
class select_union;
class st_select_lex_unit: public st_select_lex_node {
protected:
List<Item> item_list;
TABLE_LIST result_table_list;
select_union *union_result;
TABLE *table; /* temporary table using for appending UNION results */
@ -316,9 +315,19 @@ protected:
ulong found_rows_for_union;
bool prepared, // prepare phase already performed for UNION (unit)
optimized, // optimize phase already performed for UNION (unit)
executed, // already executed
t_and_f; // used for transferring tables_and_fields_initied UNIT:: methods
executed; // already executed
public:
// list of fields which points to temporary table for union
List<Item> item_list;
/*
list of types of items inside union (used for union & derived tables)
Item_type_holders from which this list consist may have pointers to Field,
pointers is valid only after preparing SELECTS of this unit and before
any SELECT of this unit execution
*/
List<Item> types;
/*
Pointer to 'last' select or pointer to unit where stored
global parameters for union
@ -353,7 +362,7 @@ public:
void exclude_tree();
/* UNION methods */
int prepare(THD *thd, select_result *result, bool tables_and_fields_initied);
int prepare(THD *thd, select_result *result);
int exec();
int cleanup();