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| author | unknown <bell@sanja.is.com.ua> | 2004-05-06 20:40:21 +0300 |
|---|---|---|
| committer | unknown <bell@sanja.is.com.ua> | 2004-05-06 20:40:21 +0300 |
| commit | 1a4f499ca87634d4256d2531bab68b32f3e5fa49 (patch) | |
| tree | 0daaf7c780326e902f4ac6b9107be15ccc5ae28a /mysql-test/r/derived.result | |
| parent | cd57fc8bdabbd3b1b44fa98ae1c3bc7c66fcd08c (diff) | |
| download | mariadb-git-1a4f499ca87634d4256d2531bab68b32f3e5fa49.tar.gz | |
EXPLAIN UNION using same routing which used for execution which allow return correct bug messages (Bug #3639)
EXPLAIN of hidden SELECT of UNION
mysql-test/r/derived.result:
explain of hidden select
mysql-test/r/subselect.result:
explain of hidden select
mysql-test/r/union.result:
explain of hidden select
correct error messages on explain
mysql-test/t/subselect.test:
show eliminated costants in WHERE clause
mysql-test/t/union.test:
correct error messages on EXPLAIN with union
sql/item.cc:
fixed name constructing for global ORDER BY items
sql/sql_class.h:
select ID can be negative (for hidden SELECTs)
removed unused field
sql/sql_lex.cc:
new flag of UNION EXPLAIN
sql/sql_lex.h:
new flag of UNION EXPLAIN
select ID can be negative (for hidden SELECTs)
sql/sql_select.cc:
EXPLAIN UNION using same routing which used for execution
explain for hidden SELECT of UNION
sql/sql_union.cc:
EXPLAIN UNION using same routing which used for execution
Diffstat (limited to 'mysql-test/r/derived.result')
| -rw-r--r-- | mysql-test/r/derived.result | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/mysql-test/r/derived.result b/mysql-test/r/derived.result index 81e2cd03d1a..cdbca9aa2aa 100644 --- a/mysql-test/r/derived.result +++ b/mysql-test/r/derived.result @@ -94,11 +94,13 @@ id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <derived2> ALL NULL NULL NULL NULL 3 2 DERIVED t1 ALL NULL NULL NULL NULL 4 3 UNION t1 ALL NULL NULL NULL NULL 4 +-2 UNION RESULT <union2> ALL NULL NULL NULL NULL NULL explain select * from (select * from t1 union all select * from t1) a; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <derived2> ALL NULL NULL NULL NULL 8 2 DERIVED t1 ALL NULL NULL NULL NULL 4 3 UNION t1 ALL NULL NULL NULL NULL 4 +-2 UNION RESULT <union2> ALL NULL NULL NULL NULL NULL CREATE TABLE t2 (a int not null); insert into t2 values(1); select * from (select * from t1 where t1.a=(select a from t2 where t2.a=t1.a)) a; @@ -246,8 +248,10 @@ id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <derived4> ALL NULL NULL NULL NULL 2 4 DERIVED t1 ALL NULL NULL NULL NULL 2 5 UNION t1 ALL NULL NULL NULL NULL 2 +-4 UNION RESULT <union4> ALL NULL NULL NULL NULL NULL 2 DERIVED t1 ALL NULL NULL NULL NULL 2 3 UNION t1 ALL NULL NULL NULL NULL 2 +-2 UNION RESULT <union2> ALL NULL NULL NULL NULL NULL drop table t1; CREATE TABLE `t1` ( `N` int(11) unsigned NOT NULL default '0', |