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added depended subselect processing

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This commit is contained in:
bell@sanja.is.com.ua
2002-05-26 22:50:32 +03:00
parent 17e839d453
commit 35faf872aa
9 changed files with 109 additions and 17 deletions
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8
sql/sql_lex.h
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@ -208,6 +208,7 @@ private:
SELECT_LEXs
*/
struct st_lex;
struct st_select_lex;
struct st_select_lex_unit: public st_select_lex_node {
/*
Pointer to 'last' select or pointer to unit where stored
@ -218,6 +219,8 @@ struct st_select_lex_unit: public st_select_lex_node {
ha_rows select_limit_cnt, offset_limit_cnt;
void init_query();
bool create_total_list(THD *thd, st_lex *lex, TABLE_LIST **result);
st_select_lex* first_select() { return (st_select_lex*) slave; }
st_select_lex_unit* next_unit() { return (st_select_lex_unit*) next; }
private:
bool create_total_list_n_last_return(THD *thd, st_lex *lex,
TABLE_LIST ***result);
@ -240,9 +243,12 @@ struct st_select_lex: public st_select_lex_node {
List<Item_func_match> ftfunc_list;
uint in_sum_expr, sort_default;
bool create_refs,
braces; /* SELECT ... UNION (SELECT ... ) <- this braces */
braces, /* SELECT ... UNION (SELECT ... ) <- this braces */
depended; /* depended from outer select subselect */
void init_query();
void init_select();
st_select_lex* outer_select() { return (st_select_lex*) master->master; }
st_select_lex* next_select() { return (st_select_lex*) next; }
};
typedef struct st_select_lex SELECT_LEX;