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Name resolution context added (BUG#6443)

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This commit is contained in:
bell@sanja.is.com.ua
2005-07-01 07:05:42 +03:00
parent d8cb0cbc3f
commit d3905f3d0e
55 changed files with 1688 additions and 1069 deletions
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45
sql/sql_lex.h
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@ -470,6 +470,7 @@ typedef class st_select_lex_unit SELECT_LEX_UNIT;
class st_select_lex: public st_select_lex_node
{
public:
Name_resolution_context context;
char *db, *db1, *table1, *db2, *table2; /* For outer join using .. */
Item *where, *having; /* WHERE & HAVING clauses */
Item *prep_where; /* saved WHERE clause for prepared statement processing */
@ -549,27 +550,6 @@ public:
/* exclude this select from check of unique_table() */
bool exclude_from_table_unique_test;
/*
SELECT for SELECT command st_select_lex. Used to privent scaning
item_list of non-SELECT st_select_lex (no sense find to finding
reference in it (all should be in tables, it is dangerouse due
to order of fix_fields calling for non-SELECTs commands (item list
can be not fix_fieldsd)). This value will be assigned for
primary select (sql_yac.yy) and for any subquery and
UNION SELECT (sql_parse.cc mysql_new_select())
INSERT for primary st_select_lex structure of simple INSERT/REPLACE
(used for name resolution, see Item_fiels & Item_ref fix_fields,
FALSE for INSERT/REPLACE ... SELECT, because it's
st_select_lex->table_list will be preprocessed (first table removed)
before passing to handle_select)
NOMATTER for other
*/
enum {NOMATTER_MODE, SELECT_MODE, INSERT_MODE} resolve_mode;
void init_query();
void init_select();
st_select_lex_unit* master_unit();
@ -903,7 +883,30 @@ typedef struct st_lex
bool can_not_use_merged();
bool only_view_structure();
bool need_correct_ident();
uint8 get_effective_with_check(st_table_list *view);
/*
Is this update command where 'WHITH CHECK OPTION' clause is important
SYNOPSIS
st_lex::which_check_option_applicable()
RETURN
TRUE have to take 'WHITH CHECK OPTION' clause into account
FALSE 'WHITH CHECK OPTION' clause do not need
*/
inline bool which_check_option_applicable()
{
switch (sql_command) {
case SQLCOM_UPDATE:
case SQLCOM_UPDATE_MULTI:
case SQLCOM_INSERT:
case SQLCOM_INSERT_SELECT:
case SQLCOM_LOAD:
return TRUE;
default:
return FALSE;
}
}
inline bool requires_prelocking()
{
return test(query_tables_own_last);