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| author | Sergey Glukhov <Sergey.Glukhov@sun.com> | 2010-02-26 17:40:01 +0400 |
|---|---|---|
| committer | Sergey Glukhov <Sergey.Glukhov@sun.com> | 2010-02-26 17:40:01 +0400 |
| commit | 5d9a74f22dfefd27d0bb62a1829a2484741bbf8a (patch) | |
| tree | f0ae736e5674de5566766cbec76784fcfad888f9 /mysql-test/r/select.result | |
| parent | 3fcb25d806c84c41f85f3bb6b27275a42b3cb8b5 (diff) | |
| download | mariadb-git-5d9a74f22dfefd27d0bb62a1829a2484741bbf8a.tar.gz | |
Bug#47669 Query showed by EXPLAIN EXTENDED gives different result from original query
Item_field::print method does not take into
account fields whose values may be null.
The fix is to print 'NULL' if field value is null.
Diffstat (limited to 'mysql-test/r/select.result')
| -rw-r--r-- | mysql-test/r/select.result | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/mysql-test/r/select.result b/mysql-test/r/select.result index bd7968583dc..fb4175ed5ca 100644 --- a/mysql-test/r/select.result +++ b/mysql-test/r/select.result @@ -4050,10 +4050,10 @@ join_0.c1; 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 '0' AS `c1` from `test`.`t1` `join_0` join `test`.`t1` `join_1` join `test`.`t1` `join_2` join `test`.`t1` `join_3` join `test`.`t1` `join_4` join `test`.`t1` `join_5` join `test`.`t1` `join_6` join `test`.`t1` `join_7` where 0 group by '0','0','0','0','0' +Note 1003 select NULL AS `c1` from `test`.`t1` `join_0` join `test`.`t1` `join_1` join `test`.`t1` `join_2` join `test`.`t1` `join_3` join `test`.`t1` `join_4` join `test`.`t1` `join_5` join `test`.`t1` `join_6` join `test`.`t1` `join_7` where 0 group by NULL,NULL,NULL,NULL,NULL SHOW WARNINGS; Level Code Message -Note 1003 select '0' AS `c1` from `test`.`t1` `join_0` join `test`.`t1` `join_1` join `test`.`t1` `join_2` join `test`.`t1` `join_3` join `test`.`t1` `join_4` join `test`.`t1` `join_5` join `test`.`t1` `join_6` join `test`.`t1` `join_7` where 0 group by '0','0','0','0','0' +Note 1003 select NULL AS `c1` from `test`.`t1` `join_0` join `test`.`t1` `join_1` join `test`.`t1` `join_2` join `test`.`t1` `join_3` join `test`.`t1` `join_4` join `test`.`t1` `join_5` join `test`.`t1` `join_6` join `test`.`t1` `join_7` where 0 group by NULL,NULL,NULL,NULL,NULL DROP TABLE t1; SELECT 1 AS ` `; @@ -4648,17 +4648,17 @@ EXPLAIN EXTENDED SELECT * FROM t1 WHERE (a=a AND b=b AND c=c) OR b > 20; id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 system NULL NULL NULL NULL 0 0.00 const row not found Warnings: -Note 1003 select '0' AS `a`,'0' AS `b`,'0' AS `c` from `test`.`t1` where 1 +Note 1003 select NULL AS `a`,NULL AS `b`,NULL AS `c` from `test`.`t1` where 1 EXPLAIN EXTENDED SELECT * FROM t1 WHERE (a=a AND a=a AND b=b) OR b > 20; id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 system NULL NULL NULL NULL 0 0.00 const row not found Warnings: -Note 1003 select '0' AS `a`,'0' AS `b`,'0' AS `c` from `test`.`t1` where 1 +Note 1003 select NULL AS `a`,NULL AS `b`,NULL AS `c` from `test`.`t1` where 1 EXPLAIN EXTENDED SELECT * FROM t1 WHERE (a=a AND b=b AND a=a) OR b > 20; id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 system NULL NULL NULL NULL 0 0.00 const row not found Warnings: -Note 1003 select '0' AS `a`,'0' AS `b`,'0' AS `c` from `test`.`t1` where 1 +Note 1003 select NULL AS `a`,NULL AS `b`,NULL AS `c` from `test`.`t1` where 1 DROP TABLE t1; # # Bug#45266: Uninitialized variable lead to an empty result. |