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subselect2.result, select.result:

Post-merge fixes for nested joins.
  The join_tab_cmp function in sql_select has been changed.
join_nested.result:
  Post-merge fixes for nested joins. 
  The join_tab_cmp function in sql_select has been changed
sql_select.cc:
  Post-merge fixes for nested joins.
  Avoided re-execution of eliminate_not_funcs and simplify_joins
  in optimize_cond.
  Changed the join_tab_cmp function to take into account
  the dependent relation.
sql_lex.cc, sql_lex.h:
  Added the first_cond_optimization flag to st_select_lex to avoid
  re-execution of some optimizations in optimize_cond.
sql_base.cc:
  Post-merge fixes for nested joins. 
  Fixed problems with a proper column list substituted for '*' in
  queries with natural joins.


sql/sql_base.cc:
  Post-merge fixes for nested joins. 
  Fixed problems with a proper column list substituted for '*' in
  queries with natural joins.
sql/sql_lex.h:
  Added the first_cond_optimization flag to st_select_lex to avoid
  re-execution of some optimizations in optimize_cond.
sql/sql_lex.cc:
  Added the first_cond_optimization flag to st_select_lex to avoid
  re-execution of some optimizations in optimize_cond.
sql/sql_select.cc:
  Post-merge fixes for nested joins.
  Avoided re-execution of eliminate_not_funcs and simplify_joins
  in optimize_cond.
  Changed the join_tab_cmp function to take into account
  the dependent relation.
mysql-test/r/join_nested.result:
  Post-merge fixes for nested joins. 
  The join_tab_cmp function in sql_select has been changed
mysql-test/r/select.result:
  Post-merge fixes for nested joins.
  The join_tab_cmp function in sql_select has been changed.
mysql-test/r/subselect2.result:
  Post-merge fixes for nested joins.
  The join_tab_cmp function in sql_select has been changed.
This commit is contained in:
unknown
2004-06-30 05:54:32 -07:00
parent 62746a7780
commit defef7eec6
7 changed files with 90 additions and 34 deletions

View File

@@ -2253,10 +2253,10 @@ a a
2 2
3 3
select * from (t1 as t2 left join t1 as t3 using (a)) natural join t1;
a a a
1 1 1
2 2 2
3 3 3
a a
1 1
2 2
3 3
drop table t1;
CREATE TABLE t1 ( aa char(2), id int(11) NOT NULL auto_increment, t2_id int(11) NOT NULL default '0', PRIMARY KEY (id), KEY replace_id (t2_id)) ENGINE=MyISAM;
INSERT INTO t1 VALUES ("1",8264,2506),("2",8299,2517),("3",8301,2518),("4",8302,2519),("5",8303,2520),("6",8304,2521),("7",8305,2522);
@@ -2283,8 +2283,8 @@ left join t4 on id3 = id4 where id2 = 1 or id4 = 1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t3 system NULL NULL NULL NULL 0 const row not found
1 SIMPLE t1 ALL NULL NULL NULL NULL 2
1 SIMPLE t4 ALL id4 NULL NULL NULL 1
1 SIMPLE t2 ALL NULL NULL NULL NULL 1 Using where
1 SIMPLE t2 ALL NULL NULL NULL NULL 1
1 SIMPLE t4 ALL id4 NULL NULL NULL 1 Using where
select * from t1 left join t2 on id1 = id2 left join t3 on id1 = id3
left join t4 on id3 = id4 where id2 = 1 or id4 = 1;
id1 id2 id3 id4 id44