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subqueries made printable

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new EXPLAIN parameter to show real query as it was interpreted
(SCRUM) (WL#1274)
This commit is contained in:
bell@sanja.is.com.ua
2003-10-16 15:54:47 +03:00
parent ddf4d1e529
commit a7bdd19707
18 changed files with 735 additions and 181 deletions
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7
sql/sql_select.h
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@ -151,7 +151,8 @@ class JOIN :public Sql_alloc
Item_sum **sum_funcs2, ***sum_funcs_end2;
Procedure *procedure;
Item *having;
Item *tmp_having; // To store Having when processed temporary table
Item *tmp_having; // To store having when processed temporary table
Item *having_history; // Store having for explain
uint select_options;
select_result *result;
TMP_TABLE_PARAM tmp_table_param;
@ -181,6 +182,7 @@ class JOIN :public Sql_alloc
ORDER *order, *group_list, *proc_param; //hold parameters of mysql_select
COND *conds; // ---"---
Item *conds_history; // store WHERE for explain
TABLE_LIST *tables_list; //hold 'tables' parameter of mysql_selec
SQL_SELECT *select; //created in optimisation phase
Item **ref_pointer_array; //used pointer reference for this select
@ -217,8 +219,7 @@ class JOIN :public Sql_alloc
thd= thd_arg;
sum_funcs= sum_funcs2= 0;
procedure= 0;
having= 0;
tmp_having= 0;
having= tmp_having= having_history= 0;
select_options= select_options_arg;
result= result_arg;
lock= thd_arg->lock;