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-rw-r--r--mysql-test/r/explain.result26
-rw-r--r--mysql-test/r/func_default.result2
-rw-r--r--mysql-test/r/func_regexp.result2
-rw-r--r--mysql-test/r/func_test.result2
-rw-r--r--mysql-test/r/having.result2
-rw-r--r--mysql-test/r/select.result2
-rw-r--r--mysql-test/r/subselect.result10
-rw-r--r--mysql-test/r/subselect3.result2
-rw-r--r--mysql-test/r/type_datetime.result4
-rw-r--r--mysql-test/t/explain.test12
10 files changed, 48 insertions, 16 deletions
diff --git a/mysql-test/r/explain.result b/mysql-test/r/explain.result
index 96fcbc33d3f..fbeea8bab45 100644
--- a/mysql-test/r/explain.result
+++ b/mysql-test/r/explain.result
@@ -64,7 +64,7 @@ explain extended select * from v1 where f2=1;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 system NULL NULL NULL NULL 1 100.00
Warnings:
-Note 1003 select '1' AS `f1`,'1' AS `f2` from `test`.`t1` where 1
+Note 1003 select '1' AS `f1`,'1' AS `f2` from dual where 1
explain extended select * from t1 where 0;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
@@ -74,7 +74,7 @@ explain extended select * from t1 where 1;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 system NULL NULL NULL NULL 1 100.00
Warnings:
-Note 1003 select '1' AS `f1`,'1' AS `f2` from `test`.`t1` where 1
+Note 1003 select '1' AS `f1`,'1' AS `f2` from dual where 1
explain extended select * from t1 having 0;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible HAVING
@@ -84,7 +84,7 @@ explain extended select * from t1 having 1;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 system NULL NULL NULL NULL 1 100.00
Warnings:
-Note 1003 select '1' AS `f1`,'1' AS `f2` from `test`.`t1` having 1
+Note 1003 select '1' AS `f1`,'1' AS `f2` from dual having 1
drop view v1;
drop table t1;
CREATE TABLE t1(c INT);
@@ -194,4 +194,24 @@ dt
2001-01-01 01:01:01
2001-01-01 01:01:01
drop tables t1, t2;
+#
+# Bug#30302: Tables that were optimized away are printed in the
+# EXPLAIN EXTENDED warning.
+#
+create table t1(f1 int);
+create table t2(f2 int);
+insert into t1 values(1);
+insert into t2 values(1),(2);
+explain extended select * from t1 where f1=1;
+id select_type table type possible_keys key key_len ref rows filtered Extra
+1 SIMPLE t1 system NULL NULL NULL NULL 1 100.00
+Warnings:
+Note 1003 select '1' AS `f1` from dual where 1
+explain extended select * from t1 join t2 on f1=f2 where f1=1;
+id select_type table type possible_keys key key_len ref rows filtered Extra
+1 SIMPLE t1 system NULL NULL NULL NULL 1 100.00
+1 SIMPLE t2 ALL NULL NULL NULL NULL 2 100.00 Using where
+Warnings:
+Note 1003 select '1' AS `f1`,`test`.`t2`.`f2` AS `f2` from `test`.`t2` where (`test`.`t2`.`f2` = 1)
+drop table t1,t2;
End of 5.1 tests.
diff --git a/mysql-test/r/func_default.result b/mysql-test/r/func_default.result
index a8f59f73e88..68a3a58e63f 100644
--- a/mysql-test/r/func_default.result
+++ b/mysql-test/r/func_default.result
@@ -8,7 +8,7 @@ explain extended select default(str), default(strnull), default(intg), default(r
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 system NULL NULL NULL NULL 1 100.00
Warnings:
-Note 1003 select default('') AS `default(str)`,default('') AS `default(strnull)`,default('0') AS `default(intg)`,default('0') AS `default(rel)` from `test`.`t1`
+Note 1003 select default('') AS `default(str)`,default('') AS `default(strnull)`,default('0') AS `default(intg)`,default('0') AS `default(rel)` from dual
select * from t1 where str <> default(str);
str strnull intg rel
0 0
diff --git a/mysql-test/r/func_regexp.result b/mysql-test/r/func_regexp.result
index 54aad23402f..43f90e2e2e6 100644
--- a/mysql-test/r/func_regexp.result
+++ b/mysql-test/r/func_regexp.result
@@ -52,7 +52,7 @@ explain extended select * from t1 where xxx regexp('is a test of some long text
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 system NULL NULL NULL NULL 1 100.00
Warnings:
-Note 1003 select 'this is a test of some long text to see what happens' AS `xxx` from `test`.`t1` where ('this is a test of some long text to see what happens' regexp 'is a test of some long text to')
+Note 1003 select 'this is a test of some long text to see what happens' AS `xxx` from dual where ('this is a test of some long text to see what happens' regexp 'is a test of some long text to')
select * from t1 where xxx regexp('is a test of some long text to ');
xxx
this is a test of some long text to see what happens
diff --git a/mysql-test/r/func_test.result b/mysql-test/r/func_test.result
index a97e6869d09..96a7bafccfc 100644
--- a/mysql-test/r/func_test.result
+++ b/mysql-test/r/func_test.result
@@ -87,7 +87,7 @@ explain extended select - a from t1;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 system NULL NULL NULL NULL 1 100.00
Warnings:
-Note 1003 select -('1') AS `- a` from `test`.`t1`
+Note 1003 select -('1') AS `- a` from dual
drop table t1;
select 5 between 0 and 10 between 0 and 1,(5 between 0 and 10) between 0 and 1;
5 between 0 and 10 between 0 and 1 (5 between 0 and 10) between 0 and 1
diff --git a/mysql-test/r/having.result b/mysql-test/r/having.result
index 9c3cc8fc89e..f0b934ebd3a 100644
--- a/mysql-test/r/having.result
+++ b/mysql-test/r/having.result
@@ -12,7 +12,7 @@ explain extended select count(a) as b from t1 where a=0 having b >=0;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
Warnings:
-Note 1003 select count('0') AS `b` from `test`.`t1` where 0 having (`b` >= 0)
+Note 1003 select count('0') AS `b` from dual where 0 having (`b` >= 0)
drop table t1;
CREATE TABLE t1 (
raw_id int(10) NOT NULL default '0',
diff --git a/mysql-test/r/select.result b/mysql-test/r/select.result
index 50b5c3c13fb..485bd4e5687 100644
--- a/mysql-test/r/select.result
+++ b/mysql-test/r/select.result
@@ -4435,7 +4435,7 @@ EXPLAIN EXTENDED SELECT * FROM t1 WHERE (a=a AND a=a) OR b > 2;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 system NULL NULL NULL NULL 1 100.00
Warnings:
-Note 1003 select '1' AS `a`,'1' AS `b` from `test`.`t1` where 1
+Note 1003 select '1' AS `a`,'1' AS `b` from dual where 1
SELECT * FROM t1 WHERE (a=a AND a=a) OR b > 2;
a b
1 1
diff --git a/mysql-test/r/subselect.result b/mysql-test/r/subselect.result
index c60ac9790c5..fc0a933b732 100644
--- a/mysql-test/r/subselect.result
+++ b/mysql-test/r/subselect.result
@@ -50,7 +50,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
Warnings:
Note 1276 Field or reference 'b.a' of SELECT #3 was resolved in SELECT #1
Note 1276 Field or reference 'b.a' of SELECT #3 was resolved in SELECT #1
-Note 1003 select 1 AS `1` from (select 1 AS `a`) `b` having ((select '1' AS `a`) = 1)
+Note 1003 select 1 AS `1` from dual having ((select '1' AS `a`) = 1)
SELECT 1 FROM (SELECT 1 as a) as b HAVING (SELECT a)=1;
1
1
@@ -203,7 +203,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
3 DERIVED t2 ALL NULL NULL NULL NULL 2 100.00 Using where
2 SUBQUERY t3 ALL NULL NULL NULL NULL 3 100.00 Using where; Using filesort
Warnings:
-Note 1003 select (select `test`.`t3`.`a` AS `a` from `test`.`t3` where (`test`.`t3`.`a` < 8) order by 1 desc limit 1) AS `(select t3.a from t3 where a<8 order by 1 desc limit 1)`,'2' AS `a` from (select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` where (`test`.`t2`.`a` > 1)) `tt`
+Note 1003 select (select `test`.`t3`.`a` AS `a` from `test`.`t3` where (`test`.`t3`.`a` < 8) order by 1 desc limit 1) AS `(select t3.a from t3 where a<8 order by 1 desc limit 1)`,'2' AS `a` from dual
select * from t1 where t1.a=(select t2.a from t2 where t2.b=(select max(a) from t3) order by 1 desc limit 1);
a
2
@@ -314,7 +314,7 @@ NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL
Warnings:
Note 1276 Field or reference 'test.t2.a' of SELECT #2 was resolved in SELECT #1
Note 1276 Field or reference 'test.t2.a' of SELECT #3 was resolved in SELECT #1
-Note 1003 select (select '2' AS `a` from `test`.`t1` where ('2' = `test`.`t2`.`a`) union select `test`.`t5`.`a` AS `a` from `test`.`t5` where (`test`.`t5`.`a` = `test`.`t2`.`a`)) AS `(select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a)`,`test`.`t2`.`a` AS `a` from `test`.`t2`
+Note 1003 select (select '2' AS `a` from dual where ('2' = `test`.`t2`.`a`) union select `test`.`t5`.`a` AS `a` from `test`.`t5` where (`test`.`t5`.`a` = `test`.`t2`.`a`)) AS `(select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a)`,`test`.`t2`.`a` AS `a` from `test`.`t2`
select (select a from t1 where t1.a=t2.a union all select a from t5 where t5.a=t2.a), a from t2;
ERROR 21000: Subquery returns more than 1 row
create table t6 (patient_uq int, clinic_uq int, index i1 (clinic_uq));
@@ -1429,7 +1429,7 @@ explain extended (select * from t1);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 system NULL NULL NULL NULL 1 100.00
Warnings:
-Note 1003 (select 'tttt' AS `s1` from `test`.`t1`)
+Note 1003 (select 'tttt' AS `s1` from dual)
(select * from t1);
s1
tttt
@@ -1617,7 +1617,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
3 UNION t1 system NULL NULL NULL NULL 1 100.00
NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL
Warnings:
-Note 1003 select 'e' AS `s1` from `test`.`t1` where 1
+Note 1003 select 'e' AS `s1` from dual where 1
drop table t1;
CREATE TABLE t1 (number char(11) NOT NULL default '') ENGINE=MyISAM CHARSET=latin1;
INSERT INTO t1 VALUES ('69294728265'),('18621828126'),('89356874041'),('95895001874');
diff --git a/mysql-test/r/subselect3.result b/mysql-test/r/subselect3.result
index f055b40116a..f20ae6a31be 100644
--- a/mysql-test/r/subselect3.result
+++ b/mysql-test/r/subselect3.result
@@ -864,7 +864,7 @@ Level Code Message
Note 1276 Field or reference 'test.t1.a' of SELECT #3 was resolved in SELECT #2
Note 1276 Field or reference 'test.t1.c' of SELECT #3 was resolved in SELECT #2
Error 1054 Unknown column 'c' in 'field list'
-Note 1003 select `c` AS `c` from (select (select count(`test`.`t1`.`a`) AS `COUNT(a)` from (select count(`test`.`t1`.`b`) AS `COUNT(b)` from `test`.`t1`) `x` group by `c`) AS `(SELECT COUNT(a) FROM
+Note 1003 select `c` AS `c` from (select (select count(`test`.`t1`.`a`) AS `COUNT(a)` from dual group by `c`) AS `(SELECT COUNT(a) FROM
(SELECT COUNT(b) FROM t1) AS x GROUP BY c
)` from `test`.`t1` group by `test`.`t1`.`b`) `y`
DROP TABLE t1;
diff --git a/mysql-test/r/type_datetime.result b/mysql-test/r/type_datetime.result
index b6281443751..054fda90c02 100644
--- a/mysql-test/r/type_datetime.result
+++ b/mysql-test/r/type_datetime.result
@@ -517,7 +517,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
Warnings:
Note 1276 Field or reference 'test.t1.cur_date' of SELECT #2 was resolved in SELECT #1
-Note 1003 select '1' AS `id`,'2007-04-25 18:30:22' AS `cur_date` from `test`.`t1` where <in_optimizer>('1',<exists>(select 1 AS `Not_used` from `test`.`t1` `x1` where 0))
+Note 1003 select '1' AS `id`,'2007-04-25 18:30:22' AS `cur_date` from dual where <in_optimizer>('1',<exists>(select 1 AS `Not_used` from `test`.`t1` `x1` where 0))
select * from t1
where id in (select id from t1 as x1 where (t1.cur_date is null));
id cur_date
@@ -529,7 +529,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
Warnings:
Note 1276 Field or reference 'test.t2.cur_date' of SELECT #2 was resolved in SELECT #1
-Note 1003 select '1' AS `id`,'2007-04-25' AS `cur_date` from `test`.`t2` where <in_optimizer>('1',<exists>(select 1 AS `Not_used` from `test`.`t2` `x1` where 0))
+Note 1003 select '1' AS `id`,'2007-04-25' AS `cur_date` from dual where <in_optimizer>('1',<exists>(select 1 AS `Not_used` from `test`.`t2` `x1` where 0))
select * from t2
where id in (select id from t2 as x1 where (t2.cur_date is null));
id cur_date
diff --git a/mysql-test/t/explain.test b/mysql-test/t/explain.test
index 18f1145a25d..162a310c0a6 100644
--- a/mysql-test/t/explain.test
+++ b/mysql-test/t/explain.test
@@ -167,4 +167,16 @@ flush tables;
SELECT OUTR.dt FROM t1 AS OUTR WHERE OUTR.dt IN ( SELECT INNR.dt FROM t2 AS INNR WHERE OUTR.t < '2005-11-13 7:41:31' );
drop tables t1, t2;
+
+--echo #
+--echo # Bug#30302: Tables that were optimized away are printed in the
+--echo # EXPLAIN EXTENDED warning.
+--echo #
+create table t1(f1 int);
+create table t2(f2 int);
+insert into t1 values(1);
+insert into t2 values(1),(2);
+explain extended select * from t1 where f1=1;
+explain extended select * from t1 join t2 on f1=f2 where f1=1;
+drop table t1,t2;
--echo End of 5.1 tests.
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